title: 2008–2011 Icelandic financial crisis

text: After these discussions, Ingibjörg Sólrún Gísladóttir of the Social Democratic Alliance and Steingrímur J. Sigfússon of the Left-Green Movement were asked by the President to negotiate the formation of a new coalition government. Such a coalition would be five seats short of an overall majority in the Althing, but the Progressive Party (seven seats) was expected to support the coalition without actually joining the government. Neither party leader became Prime Minister: instead, the position went to Jóhanna Sigurðardóttir of the Social Democratic Alliance, then the Minister of Social Affairs and Social Security, who became the new chairwoman of her party on 28 March 2009.


title: 2008–2011 Icelandic financial crisis

text: On 8 April 2009, former Prime Minister Geir H. Haarde stated that he was solely responsible for accepting controversial donations to the Icelandic Independence Party in 2006, ISK 30 million from the investment group FL Group, and ISK 25 million from Landsbanki.


title: 2008–2011 Icelandic financial crisis

text: Geir was strongly criticized in the April 2010 report of the Special Investigative Commission into the financial collapse, being accused of "negligence" along with three other ministers of his government. Iceland's parliament voted 33–30 to indict Geir, but not the other ministers, on charges of negligence in office at a session on 28 September 2010. He will stand trial before the "Landsdómur", a special court to hear cases alleging misconduct in government office: it will be the first time the "Landsdómur" has convened since it was established in the 1905 Constitution. The trial began in Reykjavik on 5 March 2012. Geir Haarde was found guilty on one of four charges on 23 April 2012, for not holding cabinet meetings on important state matters. Landsdómur said Mr. Haarde would face no punishment, as this was a minor offence.


title: 2008–2011 Icelandic financial crisis

text: Iceland's financial position has steadily improved since the crash. The economic contraction and rise in unemployment appear to have been arrested by late 2010 and with growth under way in mid-2011. Four main factors have been important in this regard. First is the emergency legislation passed by the Icelandic parliament in October 2008. It served to minimise the impact of the financial crisis on the country. The Financial Supervisory Authority of Iceland used permission granted by the emergency legislation to take over the domestic operations of the three largest banks. The much larger foreign operations of the banks, however, went into receivership.


title: 2008–2011 Icelandic financial crisis

text: A second important factor is the success of the IMF Stand-By-Arrangement in the country since November 2008. The SBA includes three pillars. The first pillar is a program of medium term fiscal consolidation, involving painful austerity measures and significant tax hikes. The result has been that central government debts have been stabilised at around 80–90 percent of GDP. A second pillar is the resurrection of a viable but sharply downsized domestic banking system on the ruins of its gargantuan international banking system which the government was unable to bail out. A third pillar is the enactment of capital controls and the work to gradually lift these to restore normal financial linkages with the outside world. An important result of the emergency legislation and the SBA is that the country has not been seriously affected by the European sovereign debt crisis from 2010. Despite a contentious debate with Britain and the Netherlands over the question of a state guarantee on the Icesave deposits of Landsbanki in these countries, credit default swaps on Icelandic sovereign debt have steadily declined from over 1000 points prior to the crash in 2008 to around 200 points in June 2011. The fact that the assets of the failed Landsbanki branches were estimated to cover most of the depositor claims had an influence to ease concerns over the situation.


title: 2008–2011 Icelandic financial crisis

text: The third major factor behind the resolution of the financial crisis was the decision by the government of Iceland to apply for membership in the EU in July 2009. While views on the feasibility of EU membership are quite mixed in Iceland, this action has served to enhance the credibility of the country on international financial markets. One sign of the success of the above efforts is the fact that the Icelandic government was successfully able to raise $1 billion with a bond issue on 9 June 2011. This development indicates that international investors have given the government and the new banking system, with two of the three biggest banks now in foreign hands, a clean bill of health. The first two major measures were implemented by the government of Geir H. Haarde but also carried out by the government of Johanna Sigurdardottir, which then took the step to apply for EU membership.


title: 2008–2011 Icelandic financial crisis

text: Finally, the fourth major factor was the sharp rise in foreign tourism, which pumped a large amount of money into the economy; this tourism boom was caused primarily by the 2010 eruptions of Eyjafjallajökull and the rise in popularity of "Game of Thrones", which had some scenes that were filmed in Iceland.


title: 2008–2011 Icelandic financial crisis

text: Iceland has undertaken recapitalization of lenders such as injection of ISK 33 billion (2.1% of 2010 GDP) into Housing Financing Fund at the end of 2010, under a restructuring plan approved by the EFTSA.


title: 2008–2011 Icelandic financial crisis

text: By mid-2012 Iceland was regarded as one of Europe's recovery success stories. It has had two years of economic growth. Unemployment was down to 6.3% and Iceland was attracting immigrants to fill jobs. Currency devaluation effectively reduced wages by 50% making exports more competitive and imports more expensive. Ten-year government bonds were issued below 6%, lower than some of the PIIGS nations in the EU (Portugal, Italy, Ireland, Greece, and Spain). Tryggvi Thor Herbertsson, a member of parliament, noted that adjustments via currency devaluations are less painful than government labor policies and negotiations. Nevertheless, while EU fervor has cooled the government continued to pursue membership.


title: 2008–2011 Icelandic financial crisis

text: Iceland elected a new government in April 2013, which as one of their top priorities wanted to negotiate a debt haircut towards foreign creditors of the three failed Icelandic banks now in receivership, as part of a deal to lift the long enforced (since November 2008) capital controls. The current capital controls ban a swap/exchange of ISK denominated assets to foreign currency, and so by effect has trapped repayment of ISK denominated assets to the creditors – which in theory mean they should be interested to accept a haircut in return for getting the capital controls lifted. The Icelandic government intent somehow to route the saved money from the negotiated debt haircut for creditors into a national household debt relief fund, enabling a 20% debt relief for all household mortgages. In July 2013, Standard & Poors recommended Iceland to drop the debt relief initiative, as it would only result in increased debt for the government – making it even more difficult to lend at credit markets, and it was forecasted also to ignite high inflation along with an economic recession equal to a GDP detraction of 10%. The government has nevertheless appointed a taskforce to present proposals on how best to achieve the government's goal about implementing a combined capital control abolition and debt relief for households, with a reporting deadline in October 2013. Capital controls were eventually ended in March 2017.


title: 2008–2011 Icelandic financial crisis

text: A significant amount of the capital trapped in Iceland by the capital controls was channelled into property investment, partly by the financial management company Gamma, and was one factor that fuelled rising property prices in Iceland after the crash.


title: Ocean thermal energy conversion

text: Ocean Thermal Energy Conversion (OTEC) uses the ocean thermal gradient between cooler deep and warmer shallow or surface seawaters to run a heat engine and produce useful work, usually in the form of electricity. OTEC can operate with a very high capacity factor and so can operate in base load mode.


title: Ocean thermal energy conversion

text: The denser cold water masses, formed by ocean surface water interaction with cold atmosphere in quite specific areas of the North Atlantic and the Southern Ocean, sink into the deep sea basins and spread in entire deep ocean by the thermohaline circulation. Upwelling of cold water from the deep ocean is replenished by the downwelling of cold surface sea water.


title: Ocean thermal energy conversion

text: Among ocean energy sources, OTEC is one of the continuously available renewable energy resources that could contribute to base-load power supply. The resource potential for OTEC is considered to be much larger than for other ocean energy forms. Up to 88,000 TWh/yr of power could be generated from OTEC without affecting the ocean's thermal structure.


title: Ocean thermal energy conversion

text: Systems may be either closed-cycle or open-cycle. Closed-cycle OTEC uses working fluids that are typically thought of as refrigerants such as ammonia or R-134a. These fluids have low boiling points, and are therefore suitable for powering the system's generator to generate electricity. The most commonly used heat cycle for OTEC to date is the Rankine cycle, using a low-pressure turbine. Open-cycle engines use vapor from the seawater itself as the working fluid.


title: Ocean thermal energy conversion

text: OTEC can also supply quantities of cold water as a by-product. This can be used for air conditioning and refrigeration and the nutrient-rich deep ocean water can feed biological technologies. Another by-product is fresh water distilled from the sea.


title: Ocean thermal energy conversion

text: OTEC theory was first developed in the 1880s and the first bench size demonstration model was constructed in 1926. Currently operating pilot-scale OTEC plants are located in Japan, overseen by Saga University, and Makai in Hawaii.


title: Ocean thermal energy conversion

text: Attempts to develop and refine OTEC technology started in the 1880s. In 1881, Jacques Arsene d'Arsonval, a French physicist, proposed tapping the thermal energy of the ocean. D'Arsonval's student, Georges Claude, built the first OTEC plant, in Matanzas, Cuba in 1930. The system generated 22 kW of electricity with a low-pressure turbine. The plant was later destroyed in a storm.


title: Ocean thermal energy conversion

text: In 1935, Claude constructed a plant aboard a 10,000-ton cargo vessel moored off the coast of Brazil. Weather and waves destroyed it before it could generate net power. (Net power is the amount of power generated after subtracting power needed to run the system).


title: Ocean thermal energy conversion

text: In 1956, French scientists designed a 3 MW plant for Abidjan, Ivory Coast. The plant was never completed, because new finds of large amounts of cheap petroleum made it uneconomical.


title: Ocean thermal energy conversion

text: In 1962, J. Hilbert Anderson and James H. Anderson, Jr. focused on increasing component efficiency. They patented their new "closed cycle" design in 1967. This design improved upon the original closed-cycle Rankine system, and included this in an outline for a plant that would produce power at lower cost than oil or coal. At the time, however, their research garnered little attention since coal and nuclear were considered the future of energy.


title: Ocean thermal energy conversion

text: Japan is a major contributor to the development of OTEC technology. Beginning in 1970 the Tokyo Electric Power Company successfully built and deployed a 100 kW closed-cycle OTEC plant on the island of Nauru. The plant became operational on 14 October 1981, producing about 120 kW of electricity; 90 kW was used to power the plant and the remaining electricity was used to power a school and other places. This set a world record for power output from an OTEC system where the power was sent to a real (as opposed to an experimental) power grid. 1981 also saw a major development in OTEC technology when Russian engineer, Dr. Alexander Kalina, used a mixture of ammonia and water to produce electricity. This new ammonia-water mixture greatly improved the efficiency of the power cycle. In 1994 Saga University designed and constructed a 4.5 kW plant for the purpose of testing a newly invented Uehara cycle, also named after its inventor Haruo Uehara. This cycle included


title: Ocean thermal energy conversion

text: absorption and extraction processes that allow this system to outperform the Kalina cycle by 1-2%. Currently, the Institute of Ocean Energy, Saga University, is the leader in OTEC power plant research and also focuses on many of the technology's secondary benefits.


title: Ocean thermal energy conversion

text: The 1970s saw an uptick in OTEC research and development during the post 1973 Arab-Israeli War, which caused oil prices to triple. The U.S. federal government poured $260 million into OTEC research after President Carter signed a law that committed the US to a production goal of 10,000 MW of electricity from OTEC systems by 1999.


title: Ocean thermal energy conversion

text: In 1974, The U.S. established the Natural Energy Laboratory of Hawaii Authority (NELHA) at Keahole Point on the Kona coast of Hawaii. Hawaii is the best US OTEC location, due to its warm surface water, access to very deep, very cold water, and high electricity costs. The laboratory has become a leading test facility for OTEC technology. In the same year, Lockheed received a grant from the U.S. National Science Foundation to study OTEC. This eventually led to an effort by Lockheed, the US Navy, Makai Ocean Engineering, Dillingham Construction, and other firms to build the world's first and only net-power producing OTEC plant, dubbed "Mini-OTEC" For three months in 1979, a small amount of electricity was generated.


title: Ocean thermal energy conversion

text: A European initiative EUROCEAN - a privately funded joint venture of 9 European companies already active in offshore engineering - was active in promoting OTEC from 1979 to 1983. Initially a large scale offshore facility was studied. Later a 100 kW land based installation was studied combining land based OTEC with Desalination and Aquaculture nicknamed ODA. This was based on the results from a small scale aquaculture facility at the island of St Croix that used a deepwater supply line to feed the aquaculture basins. Also a shore based open cycle plant was investigated.


title: Ocean thermal energy conversion

text: Research related to making open-cycle OTEC a reality began earnestly in 1979 at the Solar Energy Research Institute (SERI) with funding from the US Department of Energy. Evaporators and suitably configured direct-contact condensers were developed and patented by SERI (see). An original design for a power-producing experiment, then called the 165-kW experiment was described by Kreith and Bharathan (, and) as the Max Jakob Memorial Award Lecture. The initial design used two parallel axial turbines, using last stage rotors taken from large steam turbines. Later, a team led by Dr. Bharathan at the National Renewable Energy Laboratory (NREL) developed the initial conceptual design for up-dated 210 kW open-cycle OTEC experiment (). This design integrated all components of the cycle, namely, the evaporator, condenser and the turbine into one single vacuum vessel, with the turbine mounted on top to prevent any potential for water to reach it. The vessel was made of concrete as the first process vacuum vessel of its kind. Attempts to make all components using low-cost plastic material could not be fully achieved, as some conservatism was required for the turbine and the vacuum pumps developed as the first of their kind. Later Dr. Bharathan worked with a team of engineers at the Pacific Institute for High Technology Research (PICHTR) to further pursue this design through preliminary and final stages. It was renamed the Net Power Producing Experiment (NPPE) and was constructed at the Natural Energy Laboratory of Hawaii (NELH) by PICHTR by a team led by Chief Engineer Don Evans and the project was managed by Dr. Luis Vega.


title: Ocean thermal energy conversion

text: In 2002, India tested a 1 MW floating OTEC pilot plant near Tamil Nadu. The plant was ultimately unsuccessful due to a failure of the deep sea cold water pipe. Its government continues to sponsor research.


title: Ocean thermal energy conversion

text: In 2006, Makai Ocean Engineering was awarded a contract from the U.S. Office of Naval Research (ONR) to investigate the potential for OTEC to produce nationally significant quantities of hydrogen in at-sea floating plants located in warm, tropical waters. Realizing the need for larger partners to actually commercialize OTEC, Makai approached Lockheed Martin to renew their previous relationship and determine if the time was ready for OTEC. And so in 2007, Lockheed Martin resumed work in OTEC and became a subcontractor to Makai to support their SBIR, which was followed by other subsequent collaborations


title: Ocean thermal energy conversion

text: In March 2011, Ocean Thermal Energy Corporation signed an Energy Services Agreement (ESA) with the Baha Mar resort, Nassau, Bahamas, for the world's first and largest seawater air conditioning (SWAC) system. In June 2015, the project was put on pause while the resort resolved financial and ownership issues. In August 2016, it was announced that the issues had been resolved and that the resort would open in March 2017. It is expected that the SWAC system's construction will resume at that time.


title: Ocean thermal energy conversion

text: In July 2011, Makai Ocean Engineering completed the design and construction of an OTEC Heat Exchanger Test Facility at the Natural Energy Laboratory of Hawaii. The purpose of the facility is to arrive at an optimal design for OTEC heat exchangers, increasing performance and useful life while reducing cost (heat exchangers being the #1 cost driver for an OTEC plant). And in March 2013, Makai announced an award to install and operate a 100 kilowatt turbine on the OTEC Heat Exchanger Test Facility, and once again connect OTEC power to the grid.


title: Ocean thermal energy conversion

text: In July 2016, the Virgin Islands Public Services Commission approved Ocean Thermal Energy Corporation's application to become a Qualified Facility. The company is thus permitted to begin negotiations with the Virgin Islands Water and Power Authority (WAPA) for a Power Purchase Agreement (PPA) pertaining to an Ocean Thermal Energy Conversion (OTEC) plant on the island of St. Croix. This would be the world's first commercial OTEC plant.


title: Ocean thermal energy conversion

text: In March 2013, Saga University with various Japanese industries completed the installation of a new OTEC plant. Okinawa Prefecture announced the start of the OTEC operation testing at Kume Island on April 15, 2013. The main aim is to prove the validity of computer models and demonstrate OTEC to the public. The testing and research will be conducted with the support of Saga University until the end of FY 2016. IHI Plant Construction Co. Ltd, Yokogawa Electric Corporation, and Xenesys Inc were entrusted with constructing the 100 kilowatt class plant within the grounds of the Okinawa Prefecture Deep Sea Water Research Center. The location was specifically chosen in order to utilize existing deep seawater and surface seawater intake pipes installed for the research center in 2000. The pipe is used for the intake of deep sea water for research, fishery, and agricultural use.[19]


title: Ocean thermal energy conversion

text: The plant consists of two 50 kW units in double Rankine configuration. The OTEC facility and deep seawater research center are open to free public tours by appointment in English and Japanese. Currently, this is one of only two fully operational OTEC plants in the world. This plant operates continuously when specific tests are not underway.


title: Ocean thermal energy conversion

text: In 2011, Makai Ocean Engineering completed a heat exchanger test facility at NELHA. Used to test a variety of heat exchange technologies for use in OTEC, Makai has received funding to install a 105 kW turbine. Installation will make this facility the largest operational OTEC facility, though the record for largest power will remain with the Open Cycle plant also developed in Hawaii.


title: Ocean thermal energy conversion

text: In July 2014, DCNS group partnered with Akuo Energy announced NER 300 funding for their NEMO project. If successful, the 16MW gross 10MW net offshore plant will be the largest OTEC facility to date. DCNS plans to have NEMO operational by 2020.


title: Ocean thermal energy conversion

text: An ocean thermal energy conversion power plant built by Makai Ocean Engineering went operational in Hawaii in August 2015 . The governor of Hawaii, David Ige, "flipped the switch" to activate the plant. This is the first true closed-cycle ocean Thermal Energy Conversion (OTEC) plant to be connected to a U.S. electrical grid . It is a demo plant capable of generating 105 kilowatts, enough to power about 120 homes.


title: Ocean thermal energy conversion

text: A heat engine gives greater efficiency when run with a large temperature difference. In the oceans the temperature difference between surface and deep water is greatest in the tropics, although still a modest 20 to 25 °C. It is therefore in the tropics that OTEC offers the greatest possibilities. OTEC has the potential to offer global amounts of energy that are 10 to 100 times greater than other ocean energy options such as wave power.


title: Ocean thermal energy conversion

text: OTEC plants can operate continuously providing a base load supply for an electrical power generation system.


title: Ocean thermal energy conversion

text: The main technical challenge of OTEC is to generate significant amounts of power efficiently from small temperature differences. It is still considered an emerging technology. Early OTEC systems were 1 to 3 percent thermally efficient, well below the theoretical maximum 6 and 7 percent for this temperature difference. Modern designs allow performance approaching the theoretical maximum Carnot efficiency.


title: Ocean thermal energy conversion

text: Cold seawater is an integral part of each of the three types of OTEC systems: closed-cycle, open-cycle, and hybrid. To operate, the cold seawater must be brought to the surface. The primary approaches are active pumping and desalination. Desalinating seawater near the sea floor lowers its density, which causes it to rise to the surface.


title: Ocean thermal energy conversion

text: The alternative to costly pipes to bring condensing cold water to the surface is to pump vaporized low boiling point fluid into the depths to be condensed, thus reducing pumping volumes and reducing technical and environmental problems and lowering costs.


title: Ocean thermal energy conversion

text: Closed-cycle systems use fluid with a low boiling point, such as ammonia (having a boiling point around -33 °C at atmospheric pressure), to power a turbine to generate electricity. Warm surface seawater is pumped through a heat exchanger to vaporize the fluid. The expanding vapor turns the turbo-generator. Cold water, pumped through a second heat exchanger, condenses the vapor into a liquid, which is then recycled through the system.


title: Ocean thermal energy conversion

text: In 1979, the Natural Energy Laboratory and several private-sector partners developed the "mini OTEC" experiment, which achieved the first successful at-sea production of net electrical power from closed-cycle OTEC. The mini OTEC vessel was moored off the Hawaiian coast and produced enough net electricity to illuminate the ship's light bulbs and run its computers and television.


title: Ocean thermal energy conversion

text: Open-cycle OTEC uses warm surface water directly to make electricity. The warm seawater is first pumped into a low-pressure container, which causes it to boil. In some schemes, the expanding vapor drives a low-pressure turbine attached to an electrical generator. The vapor, which has left its salt and other contaminants in the low-pressure container, is pure fresh water. It is condensed into a liquid by exposure to cold temperatures from deep-ocean water. This method produces desalinized fresh water, suitable for drinking water, irrigation or aquaculture.


title: Ocean thermal energy conversion

text: In other schemes, the rising vapor is used in a gas lift technique of lifting water to significant heights. Depending on the embodiment, such vapor lift pump techniques generate power from a hydroelectric turbine either before or after the pump is used.


title: Ocean thermal energy conversion

text: In 1984, the "Solar Energy Research Institute" (now known as the National Renewable Energy Laboratory) developed a vertical-spout evaporator to convert warm seawater into low-pressure steam for open-cycle plants. Conversion efficiencies were as high as 97% for seawater-to-steam conversion (overall steam production would only be a few percent of the incoming water). In May 1993, an open-cycle OTEC plant at Keahole Point, Hawaii, produced close to 80 kW of electricity during a net power-producing experiment. This broke the record of 40 kW set by a Japanese system in 1982.


title: Ocean thermal energy conversion

text: A hybrid cycle combines the features of the closed- and open-cycle systems. In a hybrid, warm seawater enters a vacuum chamber and is flash-evaporated, similar to the open-cycle evaporation process. The steam vaporizes the ammonia working fluid of a closed-cycle loop on the other side of an ammonia vaporizer. The vaporized fluid then drives a turbine to produce electricity. The steam condenses within the heat exchanger and provides desalinated water (see heat pipe).


title: Ocean thermal energy conversion

text: A popular choice of working fluid is ammonia, which has superior transport properties, easy availability, and low cost. Ammonia, however, is toxic and flammable. Fluorinated carbons such as CFCs and HCFCs are not toxic or flammable, but they contribute to ozone layer depletion. Hydrocarbons too are good candidates, but they are highly flammable; in addition, this would create competition for use of them directly as fuels. The power plant size is dependent upon the vapor pressure of the working fluid. With increasing vapor pressure, the size of the turbine and heat exchangers decreases while the wall thickness of the pipe and heat exchangers increase to endure high pressure especially on the evaporator side.


title: Ocean thermal energy conversion

text: OTEC has the potential to produce gigawatts of electrical power, and in conjunction with electrolysis, could produce enough hydrogen to completely replace all projected global fossil fuel consumption. Reducing costs remains an unsolved challenge, however. OTEC plants require a long, large diameter intake pipe, which is submerged a kilometer or more into the ocean's depths, to bring cold water to the surface.


title: Ocean thermal energy conversion

text: Land-based and near-shore facilities offer three main advantages over those located in deep water. Plants constructed on or near land do not require sophisticated mooring, lengthy power cables, or the more extensive maintenance associated with open-ocean environments. They can be installed in sheltered areas so that they are relatively safe from storms and heavy seas. Electricity, desalinated water, and cold, nutrient-rich seawater could be transmitted from near-shore facilities via trestle bridges or causeways. In addition, land-based or near-shore sites allow plants to operate with related industries such as mariculture or those that require desalinated water.


title: Ocean thermal energy conversion

text: Favored locations include those with narrow shelves (volcanic islands), steep (15-20 degrees) offshore slopes, and relatively smooth sea floors. These sites minimize the length of the intake pipe. A land-based plant could be built well inland from the shore, offering more protection from storms, or on the beach, where the pipes would be shorter. In either case, easy access for construction and operation helps lower costs.


title: Ocean thermal energy conversion

text: Land-based or near-shore sites can also support mariculture or chilled water agriculture. Tanks or lagoons built on shore allow workers to monitor and control miniature marine environments. Mariculture products can be delivered to market via standard transport.


title: Ocean thermal energy conversion

text: One disadvantage of land-based facilities arises from the turbulent wave action in the surf zone. OTEC discharge pipes should be placed in protective trenches to prevent subjecting them to extreme stress during storms and prolonged periods of heavy seas. Also, the mixed discharge of cold and warm seawater may need to be carried several hundred meters offshore to reach the proper depth before it is released, requiring additional expense in construction and maintenance.


title: Ocean thermal energy conversion

text: One way that OTEC systems can avoid some of the problems and expenses of operating in a surf zone is by building them just offshore in waters ranging from 10 to 30 meters deep (Ocean Thermal Corporation 1984). This type of plant would use shorter (and therefore less costly) intake and discharge pipes, which would avoid the dangers of turbulent surf. The plant itself, however, would require protection from the marine environment, such as breakwaters and erosion-resistant foundations, and the plant output would need to be transmitted to shore.


title: Ocean thermal energy conversion

text: To avoid the turbulent surf zone as well as to move closer to the cold-water resource, OTEC plants can be mounted to the continental shelf at depths up to . A shelf-mounted plant could be towed to the site and affixed to the sea bottom. This type of construction is already used for offshore oil rigs. The complexities of operating an OTEC plant in deeper water may make them more expensive than land-based approaches. Problems include the stress of open-ocean conditions and more difficult product delivery. Addressing strong ocean currents and large waves adds engineering and construction expense. Platforms require extensive pilings to maintain a stable base. Power delivery can require long underwater cables to reach land. For these reasons, shelf-mounted plants are less attractive.


title: Ocean thermal energy conversion

text: Floating OTEC facilities operate off-shore. Although potentially optimal for large systems, floating facilities present several difficulties. The difficulty of mooring plants in very deep water complicates power delivery. Cables attached to floating platforms are more susceptible to damage, especially during storms. Cables at depths greater than 1000 meters are difficult to maintain and repair. Riser cables, which connect the sea bed and the plant, need to be constructed to resist entanglement.


title: Ocean thermal energy conversion

text: As with shelf-mounted plants, floating plants need a stable base for continuous operation. Major storms and heavy seas can break the vertically suspended cold-water pipe and interrupt warm water intake as well. To help prevent these problems, pipes can be made of flexible polyethylene attached to the bottom of the platform and gimballed with joints or collars. Pipes may need to be uncoupled from the plant to prevent storm damage. As an alternative to a warm-water pipe, surface water can be drawn directly into the platform; however, it is necessary to prevent the intake flow from being damaged or interrupted during violent motions caused by heavy seas.


title: Ocean thermal energy conversion

text: Connecting a floating plant to power delivery cables requires the plant to remain relatively stationary. Mooring is an acceptable method, but current mooring technology is limited to depths of about . Even at shallower depths, the cost of mooring may be prohibitive.


title: Ocean thermal energy conversion

text: Because OTEC facilities are more-or-less stationary surface platforms, their exact location and legal status may be affected by the United Nations Convention on the Law of the Sea treaty (UNCLOS). This treaty grants coastal nations zones of varying legal authority from land, creating potential conflicts and regulatory barriers. OTEC plants and similar structures would be considered artificial islands under the treaty, giving them no independent legal status. OTEC plants could be perceived as either a threat or potential partner to fisheries or to seabed mining operations controlled by the International Seabed Authority.


title: Ocean thermal energy conversion

text: Because OTEC systems have not yet been widely deployed, cost estimates are uncertain. A 2010 study by University of Hawaii estimated the cost of electricity for OTEC at 94.0 cents per kilowatt hour (kWh) for a 1.4 MW plant, 44.0 cents per kWh for a 10 MW plant, and 18.0 cents per kWh for a 100 MW plant. A 2015 report by the organization Ocean Energy Systems under the International Energy Agency gave an estimate of about 20.0 cents per kWh for 100 MW plants. Another study estimated power generation costs as low as 7.0 cents per kWh. Comparing to other energy sources, a 2019 study by Lazard estimated the unsubsidized cost of electricity to 3.2 to 4.2 cents per kWh for Solar PV at utility scale and 2.8 to 5.4 cents per kWh for wind power.


title: Ocean thermal energy conversion

text: A report published by IRENA in 2014 claimed that commercial use of OTEC technology can be scaled in a variety of ways. “...small-scale OTEC plants can be made to accommodate the electricity production of small communities (5 000-50 000 residents), but would require the production of valuable by-products – like fresh water or cooling – to be economically viable”. Larger scaled OTEC plants would have a much higher overhead and installation costs.


title: Ocean thermal energy conversion

text: Beneficial factors that should be taken into account include OTEC's lack of waste products and fuel consumption, the area in which it is available (often within 20° of the equator), the geopolitical effects of petroleum dependence, compatibility with alternate forms of ocean power such as wave energy, tidal energy and methane hydrates, and supplemental uses for the seawater.


title: Ocean thermal energy conversion

text: OTEC projects under consideration include a small plant for the U.S. Navy base on the British overseas territory island of Diego Garcia in the Indian Ocean. Ocean Thermal Energy Corporation (formerly OCEES International, Inc.) is working with the U.S. Navy on a design for a proposed 13-MW OTEC plant, to replace the current diesel generators. The OTEC plant would also provide 1.25 million gallons per day of potable water. This project is currently waiting for changes in US military contract policies. OTE has proposed building a 10-MW OTEC plant on Guam.


title: Ocean thermal energy conversion

text: Ocean Thermal Energy Corporation (OTE) currently has plans to install two 10 MW OTEC plants in the US Virgin Islands and a 5-10 MW OTEC facility in The Bahamas. OTE has also designed the world's largest Seawater Air Conditioning (SWAC) plant for a resort in The Bahamas, which will use cold deep seawater as a method of air-conditioning. In mid-2015, the 95%-complete project was temporarily put on hold while the resort resolved financial and ownership issues. On August 22, 2016, the government of the Bahamas announced that a new agreement had been signed under which the Baha Mar resort will be completed. On September 27, 2016, Bahamian Prime Minister Perry Christie announced that construction had resumed on Baha Mar, and that the resort was slated to open in March 2017.


title: Ocean thermal energy conversion

text: to complete the final design phase of a 10-MW closed cycle OTEC pilot system which planned to become operational in Hawaii in the 2012-2013 time frame. This system was designed to expand to 100-MW commercial systems in the near future. In November, 2010 the U.S. Naval Facilities Engineering Command (NAVFAC) awarded Lockheed Martin a US$4.4 million contract modification to develop critical system components and designs for the plant, adding to the 2009 $8.1 million contract and two Department of Energy grants totaling over $1 million in 2008 and March 2010.


title: Ocean thermal energy conversion

text: A small but operational ocean thermal energy conversion (OTEC) plant was inaugurated in Hawaii in August 2015. The opening of the research and development 100-kilowatt facility marked the first time a closed-cycle OTEC plant was connected to the U.S. grid.


title: Ocean thermal energy conversion

text: On April 13, 2013, Lockheed contracted with the Reignwood Group to build a 10 megawatt plant off the coast of southern China to provide power for a planned resort on Hainan island. A plant of that size would power several thousand homes. The Reignwood Group acquired Opus Offshore in 2011 which forms its Reignwood Ocean Engineering division which also is engaged in development of deepwater drilling.


title: Ocean thermal energy conversion

text: Currently the only continuously operating OTEC system is located in Okinawa Prefecture, Japan. The Governmental support, local community support, and advanced research carried out by Saga University were key for the contractors, IHI Plant Construction Co. Ltd, Yokogawa Electric Corporation, and Xenesys Inc, to succeed with this project. Work is being conducted to develop a 1MW facility on Kume Island requiring new pipelines. In July 2014, more than 50 members formed the Global Ocean reSource and Energy Association (GOSEA) an international organization formed to promote the development of the Kumejima Model and work towards the installation of larger deep seawater pipelines and a 1MW OTEC Facility. The companies involved in the current OTEC projects, along with other interested parties have developed plans for offshore OTEC systems as well. - For more details, see "Currently Operating OTEC Plants" above.


title: Ocean thermal energy conversion

text: On March 5, 2014, Ocean Thermal Energy Corporation (OTEC) and the 30th Legislature of the United States Virgin Islands (USVI) signed a Memorandum of Understanding to move forward with a study to evaluate the feasibility and potential benefits to the USVI of installing on-shore Ocean Thermal Energy Conversion (OTEC) renewable energy power plants and Seawater Air Conditioning (SWAC) facilities. The benefits to be assessed in the USVI study include both the baseload (24/7) clean electricity generated by OTEC, as well as the various related products associated with OTEC and SWAC, including abundant fresh drinking water, energy-saving air conditioning, sustainable aquaculture and mariculture, and agricultural enhancement projects for the Islands of St Thomas and St Croix.


title: Ocean thermal energy conversion

text: On July 18, 2016, OTE's application to be a Qualifying Facility was approved by the Virgin Islands Public Services Commission. OTE also received permission to begin negotiating contracts associated with this project.


title: Ocean thermal energy conversion

text: South Korea's Research Institute of Ships and Ocean Engineering (KRISO) received Approval in Principal from Bureau Veritas for their 1MW offshore OTEC design. No timeline was given for the project which will be located 6 km offshore of the Republic of Kiribati.


title: Ocean thermal energy conversion

text: Akuo Energy and DCNS were awarded NER300 funding on July 8, 2014 for their NEMO (New Energy for Martinique and Overseas) project which is expected to be a 10.7MW-net offshore facility completed in 2020. The award to help with development totaled 72 million Euro.


title: Ocean thermal energy conversion

text: On February 16, 2018, Global OTEC Resources announced plans to build a 150 kW plant in the Maldives, designed bespoke for hotels and resorts. "All these resorts draw their power from diesel generators. Moreover, some individual resorts consume 7,000 litres of diesel a day to meet demands which equates to over 6,000 tonnes of CO2 annually," said Director Dan Grech. The EU awarded a grant and Global OTEC resources launched a crowdfunding campaign for the rest.


title: Ocean thermal energy conversion

text: Desalinated water can be produced in open- or hybrid-cycle plants using surface condensers to turn evaporated seawater into potable water. System analysis indicates that a 2-megawatt plant could produce about of desalinated water each day. Another system patented by Richard Bailey creates condensate water by regulating deep ocean water flow through surface condensers correlating with fluctuating dew-point temperatures. This condensation system uses no incremental energy and has no moving parts.


title: Ocean thermal energy conversion

text: On March 22, 2015, Saga University opened a Flash-type desalination demonstration facility on Kumejima. This satellite of their Institute of Ocean Energy uses post-OTEC deep seawater from the Okinawa OTEC Demonstration Facility and raw surface seawater to produce desalinated water. Air is extracted from the closed system with a vacuum pump. When raw sea water is pumped into the flash chamber it boils, allowing pure steam to rise and the salt and remaining seawater to be removed. The steam is returned to liquid in a heat exchanger with cold post-OTEC deep seawater. The desalinated water can be used in hydrogen production or drinking water (if minerals are added).


title: Ocean thermal energy conversion

text: The NELHA plant established in 1993 produced an average of 7,000 gallons of freshwater per day. KOYO USA was established in 2002 to capitalize on this new economic opportunity. KOYO bottles the water produced by the NELHA plant in Hawaii. With the capacity to produce one million bottles of water every day, KOYO is now Hawaii's biggest exporter with $140 million in sales.[81]


title: Ocean thermal energy conversion

text: The cold seawater made available by an OTEC system creates an opportunity to provide large amounts of cooling to industries and homes near the plant. The water can be used in chilled-water coils to provide air conditioning for buildings. It is estimated that a pipe in diameter can deliver 4,700 gallons of water per minute. Water at could provide more than enough air conditioning for a large building. Operating 8,000 hours per year in lieu of electrical conditioning selling for 5-10¢ per kilowatt-hour, it would save $200,000-$400,000 in energy bills annually.


title: Ocean thermal energy conversion

text: The InterContinental Resort and Thalasso-Spa on the island of Bora Bora uses an SWAC system to air-condition its buildings. The system passes seawater through a heat exchanger where it cools freshwater in a closed loop system. This freshwater is then pumped to buildings and directly cools the air.


title: Ocean thermal energy conversion

text: In 2010, Copenhagen Energy opened a district cooling plant in Copenhagen, Denmark. The plant delivers cold seawater to commercial and industrial buildings, and has reduced electricity consumption by 80 percent. Ocean Thermal Energy Corporation (OTE) has designed a 9800-ton SDC system for a vacation resort in The Bahamas.


title: Ocean thermal energy conversion

text: OTEC technology supports chilled-soil agriculture. When cold seawater flows through underground pipes, it chills the surrounding soil. The temperature difference between roots in the cool soil and leaves in the warm air allows plants that evolved in temperate climates to be grown in the subtropics. Dr. John P. Craven, Dr. Jack Davidson and Richard Bailey patented this process and demonstrated it at a research facility at the Natural Energy Laboratory of Hawaii Authority (NELHA). The research facility demonstrated that more than 100 different crops can be grown using this system. Many normally could not survive in Hawaii or at Keahole Point.


title: Ocean thermal energy conversion

text: Japan has also been researching agricultural uses of Deep Sea Water since 2000 at the Okinawa Deep Sea Water Research Institute on Kume Island. The Kume Island facilities use regular water cooled by Deep Sea Water in a heat exchanger run through pipes in the ground to cool soil. Their techniques have developed an important resource for the island community as they now produce spinach, a winter vegetable, commercially year round. An expansion of the deep seawater agriculture facility was completed by Kumejima Town next to the OTEC Demonstration Facility in 2014. The new facility is for researching the economic practicality of chilled-soil agriculture on a larger scale.


title: Ocean thermal energy conversion

text: Aquaculture is the best-known byproduct, because it reduces the financial and energy costs of pumping large volumes of water from the deep ocean. Deep ocean water contains high concentrations of essential nutrients that are depleted in surface waters due to biological consumption. This artificial upwelling mimics the natural upwellings that are responsible for fertilizing and supporting the world's largest marine ecosystems, and the largest densities of life on the planet.


title: Ocean thermal energy conversion

text: Cold-water sea animals, such as salmon and lobster, thrive in this nutrient-rich, deep seawater. Microalgae such as "Spirulina", a health food supplement, also can be cultivated. Deep-ocean water can be combined with surface water to deliver water at an optimal temperature.


title: Ocean thermal energy conversion

text: Non-native species such as salmon, lobster, abalone, trout, oysters, and clams can be raised in pools supplied by OTEC-pumped water. This extends the variety of fresh seafood products available for nearby markets. Such low-cost refrigeration can be used to maintain the quality of harvested fish, which deteriorate quickly in warm tropical regions. In Kona, Hawaii, aquaculture companies working with NELHA generate about $40 million annually, a significant portion of Hawaii's GDP.


title: Ocean thermal energy conversion

text: Hydrogen can be produced via electrolysis using OTEC electricity. Generated steam with electrolyte compounds added to improve efficiency is a relatively pure medium for hydrogen production. OTEC can be scaled to generate large quantities of hydrogen. The main challenge is cost relative to other energy sources and fuels.


title: Ocean thermal energy conversion

text: The ocean contains 57 trace elements in salts and other forms and dissolved in solution. In the past, most economic analyses concluded that mining the ocean for trace elements would be unprofitable, in part because of the energy required to pump the water. Mining generally targets minerals that occur in high concentrations, and can be extracted easily, such as magnesium. With OTEC plants supplying water, the only cost is for extraction.


title: Ocean thermal energy conversion

text: The Japanese investigated the possibility of extracting uranium and found developments in other technologies (especially materials sciences) were improving the prospects.


title: Ocean thermal energy conversion

text: Ocean thermal gradient can be used to enhance rainfall and moderate the high ambient summer temperatures in tropics to benefit enormously the mankind and the flora and fauna. When sea surface temperatures are relatively high on an area, lower atmospheric pressure area is formed compared to atmospheric pressure prevailing on the nearby land mass inducing winds from the landmass towards the ocean. Oceanward winds are dry and warm which would not contribute to good rainfall on the landmass compared to landward moist winds. For adequate rainfall and comfortable summer ambient temperatures (below 35 °C) on the landmass, it is preferred to have landward moist winds from the ocean. Creating high pressure zones by artificial upwelling on sea area selectively can also be used to deflect / guide the normal monsoon global winds towards the landmass. Artificial upwelling of nutrient-rich deep ocean water to the surface also enhances fisheries growth in areas with tropical and temperate weather. It would also lead to enhanced carbon sequestration by the oceans from improved algae growth and mass gain by glaciers from the extra snow fall mitigating sea level rise or global warming process. Tropical cyclones also do not pass through the high pressure zones as they intensify by gaining energy from the warm surface waters of the sea.


title: Ocean thermal energy conversion

text: The cold deep sea water (<10 °C) is pumped to the sea surface area to suppress the sea surface temperature (>26 °C) by artificial means using electricity produced by mega scale floating wind turbine plants on the deep sea. The lower sea water surface temperature would enhance the local ambient pressure so that atmospheric landward winds are created. For upwelling the cold sea water, a stationary hydraulically driven propeller (≈50 m diameter) is located on the deep sea floor at 500 to 1000 m depth with a flexible draft tube extending up to the sea surface. The draft tube is anchored to the sea bed at its bottom side and top side to floating pontoons at the sea surface. The flexible draft tube would not collapse as its inside pressure is more compared to outside pressure when the colder water is pumped to the sea surface. Middle east, north east Africa, Indian subcontinent and Australia can get relief from hot and dry weather in summer season, also prone to erratic rainfall, by pumping deep sea water to the sea surface from the Persian gulf, Red sea, Indian Ocean and Pacific Ocean respectively.


title: Ocean thermal energy conversion

text: A rigorous treatment of OTEC reveals that a 20 °C temperature difference will provide as much energy as a hydroelectric plant with 34 m head for the same volume of water flow.


title: Ocean thermal energy conversion

text: The low temperature difference means that water volumes must be very large to extract useful amounts of heat. A 100MW power plant would be expected to pump on the order of 12 million gallons (44,400 tonnes) per minute. For comparison, pumps must move a mass of water greater than the weight of the "battleship Bismarck", which weighed 41,700 tonnes, every minute. This makes pumping a substantial parasitic drain on energy production in OTEC systems, with one Lockheed design consuming 19.55 MW in pumping costs for every 49.8 MW net electricity generated. For OTEC schemes using heat exchangers, to handle this volume of water the exchangers need to be enormous compared to those used in conventional thermal power generation plants, making them one of the most critical components due to their impact on overall efficiency. A 100 MW OTEC power plant would require 200 exchangers each larger than a 20-foot shipping container making them the single most expensive component.


title: Ocean thermal energy conversion

text: The total insolation received by the oceans (covering 70% of the earth's surface, with clearness index of 0.5 and average energy retention of 15%) is:


title: Ocean thermal energy conversion

text: The absorption coefficient "μ" may range from 0.05 m for very clear fresh water to 0.5 m for very salty water.


title: Ocean thermal energy conversion

text: Since the intensity falls exponentially with depth "y", heat absorption is concentrated at the top layers. Typically in the tropics, surface temperature values are in excess of , while at , the temperature is about . The warmer (and hence lighter) waters at the surface means there are no thermal convection currents. Due to the small temperature gradients, heat transfer by conduction is too low to equalize the temperatures. The ocean is thus both a practically infinite heat source and a practically infinite heat sink.


title: Ocean thermal energy conversion

text: This temperature difference varies with latitude and season, with the maximum in tropical, subtropical and equatorial waters. Hence the tropics are generally the best OTEC locations.


title: Ocean thermal energy conversion

text: In this scheme, warm surface water at around enters an evaporator at pressure slightly below the saturation pressures causing it to vaporize.


title: Ocean thermal energy conversion

text: This temporarily superheated water undergoes volume boiling as opposed to pool boiling in conventional boilers where the heating surface is in contact. Thus the water partially flashes to steam with two-phase equilibrium prevailing. Suppose that the pressure inside the evaporator is maintained at the saturation pressure, "T".


title: Ocean thermal energy conversion

text: Here, "x" is the fraction of water by mass that vaporizes. The warm water mass flow rate per unit turbine mass flow rate is 1/"x".


title: Ocean thermal energy conversion

text: The low pressure in the evaporator is maintained by a vacuum pump that also removes the dissolved non-condensable gases from the evaporator. The evaporator now contains a mixture of water and steam of very low vapor quality (steam content). The steam is separated from the water as saturated vapor. The remaining water is saturated and is discharged to the ocean in the open cycle. The steam is a low pressure/high specific volume working fluid. It expands in a special low pressure turbine.


title: Ocean thermal energy conversion

text: The above equation corresponds to the temperature at the exhaust of the turbine, "T". "x" is the mass fraction of vapor at state 5.


title: Ocean thermal energy conversion

text: The condenser temperature and pressure are lower. Since the turbine exhaust is to be discharged back into the ocean, a direct contact condenser is used to mix the exhaust with cold water, which results in a near-saturated water. That water is now discharged back to the ocean.


title: Ocean thermal energy conversion

text: "H"="H", at "T". "T" is the temperature of the exhaust mixed with cold sea water, as the vapor content now is negligible,


title: Ocean thermal energy conversion

text: The temperature differences between stages include that between warm surface water and working steam, that between exhaust steam and cooling water, and that between cooling water reaching the condenser and deep water. These represent external irreversibilities that reduce the overall temperature difference.


title: Ocean thermal energy conversion

text: As developed starting in the 1960s by J. Hilbert Anderson of Sea Solar Power, Inc., in this cycle, "Q" is the heat transferred in the evaporator from the warm sea water to the working fluid. The working fluid exits the evaporator as a gas near its dew point.


title: Ocean thermal energy conversion

text: The high-pressure, high-temperature gas then is expanded in the turbine to yield turbine work, "W". The working fluid is slightly superheated at the turbine exit and the turbine typically has an efficiency of 90% based on reversible, adiabatic expansion.


title: Ocean thermal energy conversion

text: From the turbine exit, the working fluid enters the condenser where it rejects heat, "-Q", to the cold sea water. The condensate is then compressed to the highest pressure in the cycle, requiring condensate pump work, "W". Thus, the Anderson closed cycle is a Rankine-type cycle similar to the conventional power plant steam cycle except that in the Anderson cycle the working fluid is never superheated more than a few degrees Fahrenheit. Owing to viscosity effects, working fluid pressure drops in both the evaporator and the condenser. This pressure drop, which depends on the types of heat exchangers used, must be considered in final design calculations but is ignored here to simplify the analysis. Thus, the parasitic condensate pump work, "W", computed here will be lower than if the heat exchanger pressure drop was included. The major additional parasitic energy requirements in the OTEC plant are the cold water pump work, "W", and the warm water pump work, "W". Denoting all other parasitic energy requirements by "W", the net work from the OTEC plant, "W" is


title: Ocean thermal energy conversion

text: The thermodynamic cycle undergone by the working fluid can be analyzed without detailed consideration of the parasitic energy requirements. From the first law of thermodynamics, the energy balance for the working fluid as the system is


title: Ocean thermal energy conversion

text: where is the net work for the thermodynamic cycle. For the idealized case in which there is no working fluid pressure drop in the heat exchangers,


title: Ocean thermal energy conversion

text: Subcooled liquid enters the evaporator. Due to the heat exchange with warm sea water, evaporation takes place and usually superheated vapor leaves the evaporator. This vapor drives the turbine and the 2-phase mixture enters the condenser. Usually, the subcooled liquid leaves the condenser and finally, this liquid is pumped to the evaporator completing a cycle.


title: Ocean thermal energy conversion

text: Carbon dioxide dissolved in deep cold and high pressure layers is brought up to the surface and released as the water warms.


title: Ocean thermal energy conversion

text: Mixing of deep ocean water with shallower water brings up nutrients and makes them available to shallow water life. This may be an advantage for aquaculture of commercially important species, but may also unbalance the ecological system around the power plant.


title: Ocean thermal energy conversion

text: OTEC plants use very large flows of warm surface seawater and cold deep seawater to generate constant renewable power. The deep seawater is oxygen deficient and generally 20-40 times more nutrient rich (in nitrate and nitrite) than shallow seawater. When these plumes are mixed, they are slightly denser than the ambient seawater. Though no large scale physical environmental testing of OTEC has been done, computer models have been developed to simulate the effect of OTEC plants.


title: Ocean thermal energy conversion

text: In 2010, a computer model was developed to simulate the physical oceanographic effects of one or several 100 megawatt OTEC plant(s). The model suggests that OTEC plants can be configured such that the plant can conduct continuous operations, with resulting temperature and nutrient variations that are within naturally occurring levels. Studies to date suggest that by discharging the OTEC flows downwards at a depth below 70 meters, the dilution is adequate and nutrient enrichment is small enough so that 100-megawatt OTEC plants could be operated in a sustainable manner on a continuous basis.


title: Ocean thermal energy conversion

text: The nutrients from an OTEC discharge could potentially cause increased biological activity if they accumulate in large quantities in the photic zone. In 2011 a biological component was added to the hydrodynamic computer model to simulate the biological response to plumes from 100 megawatt OTEC plants. In all cases modeled (discharge at 70 meters depth or more), no unnatural variations occurs in the upper 40 meters of the ocean's surface. The picoplankton response in the 110 - 70 meter depth layer is approximately a 10-25% increase, which is well within naturally occurring variability. The nanoplankton response is negligible. The enhanced productivity of diatoms (microplankton) is small. The subtle phytoplankton increase of the baseline OTEC plant suggests that higher-order biochemical effects will be very small.


title: Ocean thermal energy conversion

text: A previous Final Environmental Impact Statement (EIS) for the United States' NOAA from 1981 is available, but needs to be brought up to current oceanographic and engineering standards. Studies have been done to propose the best environmental baseline monitoring practices, focusing on a set of ten chemical oceanographic parameters relevant to OTEC. Most recently, NOAA held an OTEC Workshop in 2010 and 2012 seeking to assess the physical, chemical, and biological impacts and risks, and identify information gaps or needs.


title: Ocean thermal energy conversion

text: The Tethys database provides access to scientific literature and general information on the potential environmental effects of OTEC.


title: Ocean thermal energy conversion

text: The performance of direct contact heat exchangers operating at typical OTEC boundary conditions is important to the Claude cycle. Many early Claude cycle designs used a surface condenser since their performance was well understood. However, direct contact condensers offer significant disadvantages. As cold water rises in the intake pipe, the pressure decreases to the point where gas begins to evolve. If a significant amount of gas comes out of solution, placing a gas trap before the direct contact heat exchangers may be justified. Experiments simulating conditions in the warm water intake pipe indicated about 30% of the dissolved gas evolves in the top of the tube. The trade-off between pre-dearation of the seawater and expulsion of non-condensable gases from the condenser is dependent on the gas evolution dynamics, deaerator efficiency, head loss, vent compressor efficiency and parasitic power. Experimental results indicate vertical spout condensers perform some 30% better than falling jet types.


title: Ocean thermal energy conversion

text: Because raw seawater must pass through the heat exchanger, care must be taken to maintain good thermal conductivity. Biofouling layers as thin as can degrade heat exchanger performance by as much as 50%. A 1977 study in which mock heat exchangers were exposed to seawater for ten weeks concluded that although the level of microbial fouling was low, the thermal conductivity of the system was significantly impaired. The apparent discrepancy between the level of fouling and the heat transfer impairment is the result of a thin layer of water trapped by the microbial growth on the surface of the heat exchanger.


title: Ocean thermal energy conversion

text: Another study concluded that fouling degrades performance over time, and determined that although regular brushing was able to remove most of the microbial layer, over time a tougher layer formed that could not be removed through simple brushing. The study passed sponge rubber balls through the system. It concluded that although the ball treatment decreased the fouling rate it was not enough to completely halt growth and brushing was occasionally necessary to restore capacity. The microbes regrew more quickly later in the experiment (i.e. brushing became necessary more often) replicating the results of a previous study. The increased growth rate after subsequent cleanings appears to result from selection pressure on the microbial colony.


title: Ocean thermal energy conversion

text: Continuous use of 1 hour per day and intermittent periods of free fouling and then chlorination periods (again 1 hour per day) were studied. Chlorination slowed but did not stop microbial growth; however chlorination levels of .1 mg per liter for 1 hour per day may prove effective for long term operation of a plant. The study concluded that although microbial fouling was an issue for the warm surface water heat exchanger, the cold water heat exchanger suffered little or no biofouling and only minimal inorganic fouling.


title: Ocean thermal energy conversion

text: Besides water temperature, microbial fouling also depends on nutrient levels, with growth occurring faster in nutrient rich water. The fouling rate also depends on the material used to construct the heat exchanger. Aluminium tubing slows the growth of microbial life, although the oxide layer which forms on the inside of the pipes complicates cleaning and leads to larger efficiency losses. In contrast, titanium tubing allows biofouling to occur faster but cleaning is more effective than with aluminium.


title: Ocean thermal energy conversion

text: The evaporator, turbine, and condenser operate in partial vacuum ranging from 3% to 1% of atmospheric pressure. The system must be carefully sealed to prevent in-leakage of atmospheric air that can degrade or shut down operation. In closed-cycle OTEC, the specific volume of low-pressure steam is very large compared to that of the pressurized working fluid. Components must have large flow areas to ensure steam velocities do not attain excessively high values.


title: Ocean thermal energy conversion

text: An approach for reducing the exhaust compressor parasitic power loss is as follows. After most of the steam has been condensed by spout condensers, the non-condensible gas steam mixture is passed through a counter current region which increases the gas-steam reaction by a factor of five. The result is an 80% reduction in the exhaust pumping power requirements.


title: Ocean thermal energy conversion

text: In winter in coastal Arctic locations, the temperature difference between the seawater and ambient air can be as high as 40 °C (72 °F). Closed-cycle systems could exploit the air-water temperature difference. Eliminating seawater extraction pipes might make a system based on this concept less expensive than OTEC. This technology is due to H. Barjot, who suggested butane as cryogen, because of its boiling point of and its non-solubility in water. Assuming a realistic level of efficiency of 4%, calculations show that the amount of energy generated with one cubic meter water at a temperature of in a place with an air temperature of equals the amount of energy generated by letting this cubic meter water run through a hydroelectric plant of 4000 feet (1,200 m) height.


title: Ocean thermal energy conversion

text: Barjot Polar Power Plants could be located on islands in the polar region or designed as swimming barges or platforms attached to the ice cap. The weather station Myggbuka at Greenlands east coast for example, which is only 2,100 km away from Glasgow, detects monthly mean temperatures below during 6 winter months in the year. This technology can also be used to create artificial ice caps or glaciers on Antarctica valleys located near the sea coast. Thus sea level rise due to carbon emissions can be mitigated and also the generated electricity including from wind power plants is used for cripto currency mining and the heat liberated in the process is utilized for space heating requirements.


title: Ocean thermal energy conversion

text: In 1979 SERI proposed using the Seebeck effect to produce power with a total conversion efficiency of 2%.


title: Ocean thermal energy conversion

text: In 2014 Liping Liu, Associate Professor at Rutgers University, envisioned an OTEC system that utilises the solid state thermoelectric effect rather than the fluid cycles traditionally used.


title: Rear-wheel drive

text: Rear-wheel drive (RWD) is a form of engine and transmission layout used in motor vehicles, in which the engine drives the rear wheels only. Until the late 20th century, rear-wheel drive was the most common configuration for cars.


title: Rear-wheel drive

text: The most common layout for a rear-wheel drive car is with the engine and transmission at the front of the car, mounted longitudinally.


title: Rear-wheel drive

text: Some manufacturers, such as Alfa Romeo, Lancia, Porsche (944, 924, 928) and Chevrolet (C5, C6, and C7 Corvettes), place the engine at the front of the car and the transmission at the rear of the car, in order to provide a more balanced weight distribution. This configuration is often referred to as a transaxle since the transmission and axle are one unit.


title: Rear-wheel drive

text: Many of the cars built in the 19th century were rear-wheel drive, often with the engine mounted at the rear of the car. The first rear-wheel drive car with the engine mounted at the front was an 1895 Panhard model, so this layout was known as the "Système Panhard" in the early years. The layout has the advantage of minimizing mechanical complexity, as it allows the transmission to be placed in-line with the engine output shaft, spreading weight under the vehicle. In comparison, a vehicle with the engine over the driven wheels eliminates the need for the drive shaft (replacing this with the transaxle of lighter combined weight), but has the disadvantage of concentrating all the weight in one location.


title: Rear-wheel drive

text: In order to reduce the relative weight of the drive shaft, the transmission was normally split into two parts: the gearbox and the final drive. The gearbox was normally produced with its highest gear being 1:1, which offers some mechanical advantages. The final drive, in the rear axle, would then reduce this to the most appropriate speed for the wheels. As power is the product of torque and angular velocity, spinning the shaft faster for any given power reduces the torque and allows a lighter shaft construction.


title: Rear-wheel drive

text: In an era when gasoline was cheap and cars were heavy, the mechanical advantages of the front-engine, rear-wheel-drive (FR) drivetrain layout made up for any disadvantage in weight terms. It remained almost universal among car designs until the 1970s.


title: Rear-wheel drive

text: After the Arab oil embargo of 1973 and the 1979 fuel crises, a majority of American FR vehicles (station wagons and luxury sedans) were phased out for the front-engine, front-wheel drive (FF) layout – this trend would spawn the SUV-van conversion market. Throughout the 1980s and 1990s, most American companies set as a priority the eventual removal of rear-wheel drive from their mainstream and luxury lineup. Chrysler went 100% FF by 1990 and GM's American production went entirely FF by 1997 except the Corvette, Firebird and Camaro. Ford's Mustang has stayed rear-wheel drive, as it must maintain a sporty presence, as were Ford's full-size cars based on the Ford Panther platform (the Ford Crown Victoria, Mercury Grand Marquis, and Lincoln Town Car) until they were discontinued in 2011 in favour of the Ford Taurus, which Ford discontinued production in 2019, being formally available with either a transverse front-wheel drive or all-wheel drive layout.


title: Rear-wheel drive

text: In Australia, FR cars remained popular throughout this period, with the Holden Commodore and Ford Falcon having consistently strong sales until their discontinuation in the late 2010s. In Europe, front-wheel drive was popularized by small cars like the Mini, Renault 5 and Volkswagen Golf and adopted for all mainstream cars. Upscale marques like Mercedes-Benz, BMW, and Jaguar remained mostly independent of this trend and retained a lineup mostly or entirely made up of FR cars. Japanese mainstream marques such as Toyota were almost exclusively FR until the late 1970s and early 1980s. Toyota's first FF vehicle was the Toyota Tercel, with the Corolla and Celica later becoming FF while the Camry was designed as an FF from the beginning. The Supra, Cressida, Crown, and Century remained FR. Luxury division Lexus has a mostly FR lineup. Subaru's BRZ is an FR car. The fact that a driveshaft is needed to transfer power to the rear wheels means a large centre tunnel between the rear seats; therefore, cars such as the Mazda RX8 and the Porsche Panamera forgo a centre rear seat and divide both seats by a centre tunnel.


title: Rear-wheel drive

text: In the 21st century, most cars are FF, including all front-engined economy cars, though FR cars are making a return as an alternative to large sport-utility vehicles. In North America, GM returned to the production of FR-based luxury vehicles with the 2003 Cadillac CTS. As of 2012, all but the SRX and XTS are FR-based vehicles. Chevrolet reintroduced the FR-based Camaro in 2009, and the Caprice PPV in 2011. Pontiac also had a short run with the FR-based G8 and Pontiac Solstice. A Chevrolet replacement for the G8 called the Chevrolet SS was released in 2013 and uses the FR layout. Chrysler and Dodge reintroduced the 300 and Charger on a FR platform. They also maintain FR layout on the now unibody Grand Cherokee and Durango. Hyundai and Kia have also been working with new FR-based vehicles in the US, the Genesis Coupe and Sedan, the Equus and the new Kia Quoris. Ford, on the other hand, seems to be moving away from FR-based vehicles with the discontinuation of the Panther Platform in 2011 and the Australasia-only Falcon in 2016. Excluding trucks, vans, and SUVs, the Mustang is the only FR vehicle remaining in their lineup.


title: Ford Courier

text: Ford Courier is a model nameplate used by Ford since the early 1950s. First used in North America for a sedan delivery, the Courier nameplate has seen use worldwide for multiple types of vehicles. The Courier nameplate was also used by Ford for a series of compact pickup trucks (produced by Mazda) and would also see use by Ford of Europe denoting a Fiesta-based panel van. Ford Brazil used the nameplate for a Fiesta-based coupe utility pickup marketed across Latin America.


title: Ford Courier

text: During the 2000s, the Courier pickup truck was replaced by the Ranger nameplate (which replaced the Courier in North America for 1983); the Courier panel van was replaced by the Ford Transit Connect in 2002. For 2014, the stand-alone Courier name was withdrawn, but returned as the Transit Courier, the smallest vehicle of the Ford Transit van series.


title: Ford Courier

text: From 1952 to 1960, the Ford Courier nameplate was used for the sedan delivery bodystyle of the full-size Ford line. Sharing its body with the two-door Ford station wagon, the Courier was intended for use primarily as a commercial vehicle, replacing the rear seating area with storage; the side windows were replaced with painted steel panels. Ford also similar vehicle derived from the F-Series pickup truck named the panel delivery; both of these served as precursors of the modern-day cargo van.


title: Ford Courier

text: Marketed exclusively as a two-door vehicle, the Courier was initially designed with a side-hinged rear cargo access door (unique to the model line). For 1957 and 1958, the Courier adopted the two-piece "clamshell" rear door of the Ford Parklane and Ford Del Rio station wagons.


title: Ford Courier

text: For 1959 and 1960, to lower production costs of the model line, the Courier adopted the body of the two-door Ford Ranch Wagon in its entirety, distinguished only by its rear cargo area.


title: Ford Courier

text: For the 1961 model year, Ford discontinued the Courier sedan delivery and F-Series panel delivery, replacing both model lines with the Ford Econoline cargo van. The two-door sedan delivery bodystyle was made part of the compact Ford Falcon range, offered through the 1964 model year.


title: Ford Courier

text: For 1972 production, Ford revived the Courier nameplate after a 12-year hiatus, applying it to its first compact pickup truck, a rebranded version of the Mazda B-Series. Sold worldwide, the model line was the first product marketed jointly between the two manufacturers, launching an alliance that would last through 2020 production.


title: Ford Courier

text: In the early 1970s, the Ford Courier name was applied to the Mazda B-Series, a compact pickup manufactured by Mazda. It had greater fuel economy than the full-sized pickups of the time. The Courier was manufactured by Toyo Kogyo (Mazda) and imported to North America and sold by Ford Motor Company as a response to the unforeseen popularity of the small Toyota and Nissan/Datsun Pickups. It occupied the market segment previously held by the Ford Falcon-based Ranchero when that platform was upgraded to the larger Ford Fairlane in 1966.


title: Ford Courier

text: Like the other minipickups of the time, it featured a small (by US standards) four-cylinder engine, a four-speed manual transmission, rear-wheel drive, an impressive load capability of 1,400 lb (635 kg) considering its size, and a fairly small price tag compared to full-sized pickups of the time. To circumvent the 25% "chicken tax" on light trucks, Couriers (as with Chevrolet LUVs) were imported in "cab chassis" configurations, which included the entire light truck—less the cargo box or truck bed—and were only subject to a 4% tariff. Subsequently, a truck bed was attached to the chassis and the vehicle could be sold as a light truck.


title: Ford Courier

text: The body styling was effectively that of the related Mazda B-series; however, its front styling was unique in that the grille was designed to emulate the larger Ford F-series, and large single headlights instead of the B-series' smaller twin units.


title: Ford Courier

text: When the Courier was introduced, it came standard with a 1.8-liter overhead-cam engine, which produced 74 hp (55 kW) at 5,070 rpm, and 92 lb-ft (125 N·m) at 3,500 rpm. A four-speed manual transmission was standard, and a three-speed automatic was optional. A five-speed manual option was introduced for the 1976 model year.


title: Ford Courier

text: The Courier's badging changed a few times in the first generation. In 1972 and 1973, the tailgate read "COURIER" in large raised letters, with a small "FORD" badge on the upper left. The 1972 model has a small "COURIER" badge on the front driver's side edge of the hood, and from 1973 through 1976, the hood badging read "FORD". From the 1974 model year, the tailgate read "FORD" in large letters, with a small "COURIER" badge on the lower right. In 1976, the cab was lengthened by 3 in (76 mm), and the grille received added trim.


title: Ford Courier

text: Beginning in 1977, Ford gave the Courier a fresh look, moving into the more blocky, angular styling that is distinct of 1980s automotive design. In 1979, the base model engine was increased in size to .


title: Ford Courier

text: The truck was available with front disc brakes, and a Ford-built 2.3-liter engine option (which was the same as that of the Ford Pinto & Mustang II and Mercury Bobcat & Capri). The key identifying feature of the Courier from the Mazda B-Series was still the singular headlights, although with park and indicator lights placed in the grille starting in '78 ('77s still had the turn signal lights in the bumper).


title: Ford Courier

text: In 1979, the base model was increased in size to 2.0 liter (120.1 CID). The optional Ford 2.3-liter (140 cid) engine was produced in Brazil.


title: Ford Courier

text: The Courier was never available with a diesel engine in the US. However, the 1980 Mazda B2200 was available with the S2, a Mazda license built Perkins 4.135 (four-cylinder, 135-cid) 2.2-liter diesel engine, producing 66 hp (49 kW) at 2,100 rpm. This same diesel engine was available in the 1983 and 1984 Ford Rangers, but it was replaced by the Mitsubishi 4D55T 2.3-liter turbodiesel (also used in Mitsubishi's own Mighty Max and the Dodge Ram 50) for the 1985 to 1987 Ford Rangers.


title: Ford Courier

text: The Courier continued to be sold in North America until 1982 model year. For 1983, Ford introduced its own Ford Ranger to fill its compact truck segment in the United States and Canada, effectively replacing the Courier. However, in other markets (such as Australia), this generation of Couriers continued on until the 1985 model year, when the next generation was introduced. Australian models received a facelift around 1982/1983.


title: Ford Courier

text: Between 1979 and 1982, a number of electric Ford Couriers were produced. Jet Industries purchased "vehicle gliders" (Ford Courier bodies minus their engines) and put in a series DC motor and lead-acid batteries to produce the Jet Industries ElectraVan 750. These were sold mainly for use as service trucks, generally to local government departments. They had a top speed of about 70 mph (113 km/h), and would go 50 to 60 miles (97 km) on a full charge. A number of these vehicles still exist, usually with upgraded motor control systems and higher-voltage battery packs.


title: Ford Courier

text: Coinciding with the 1985 redesign of the Mazda of the Proceed/B-Series, the Courier was given a larger, more modern cab. New options included five-speed manual transmissions, four-wheel drive, and a V6 engine. For the first time, extended and four-door cabs were available.


title: Ford Courier

text: In a similar fashion to the North American Ford Ranger becoming the donor platform for the Ford Explorer SUV, a sport utility would be based upon this version of the Courier. Branded the Ford Raider (and equivalent Mazda Proceed Marvie), it was sold from 1991 to 1997.


title: Ford Courier

text: In 1998, Mazda released a complete redesign of the B-Series, with Ford adopting the Ranger nameplate for both Mazda-produced and Ford-produced compact trucks. This Ranger was sold worldwide, with the exception of North America (and certain Latin American markets).


title: Ford Courier

text: Ford Australia continued the use of the Ford Courier nameplate, selling it through 2006 in Australia and New Zealand.


title: Ford Courier

text: A Ford Courier B-segment car-derived van was launched in Europe in June 1991 with a front-engine, front-wheel-drive layout and 1.3-litre OHV petrol or 1.8-litre OHC Diesel power. Based on the Ford BE-2 platform also used by the Mark III and Mark IV Fiesta, Mark I Ka and Puma (sport compact) cars, the Ford Courier van was initially based on the Mark III Fiesta that had been introduced two years earlier in 1989, but with a longer wheelbase and Renault-derived torsion bar rear suspension.


title: Ford Courier

text: From August 1995, the Courier van was instead produced in a Mark IV-based version and did receive that Fiesta's facelift in 1999, meaning that it was produced with three different front ends, all with similar rear ends using the 1986-2000 Transit rear lights. As well as the two-seat cargo version, there was also a glazed version produced with rear seats fitted; this five-seat passenger model was sold as the Courier Combi.


title: Ford Courier

text: The Courier van was built in the Dagenham, England and Cologne, Germany factories and is 4,115 mm long, 1,650 mm wide and 1,835 mm tall, with a curb weight of 1,700 kg. With a capacity of 590 kg, competing products were initially the Fiat Fiorino and the Renault Express, and all units received a five-speed manual gearbox.


title: Ford Courier

text: In France, the Ford Courier was called Ford Courrier (with two "r"s), likely because "Courier" looked like the French word "Courrier" (mail) was misspelled.


title: Ford Courier

text: The 60 PS (44 kW) 1.8-litre naturally aspirated Diesel engine achieves its maximum power at 4,800 rpm, and its maximum torque is 110 Nm at 2,500 rpm. The claimed top speed of the Courier van 1.8D is 84 mph (135 km/h), with acceleration not specified.


title: Ford Courier

text: From 1999 to 2002, a 1.8-litre turbo-diesel engine was available as an option for improved performance. However, the 1.8TD was only offered in 75 PS low-boost guise; the 90 PS intercooled version (as offered on the Mark VI Escort van) was not made available on the Courier van.


title: Ford Courier

text: Production of the Courier van ended in August 2002, and both it and the Escort van were replaced in September 2002 by the Ford Transit Connect, based on the Focus. However, after 11 years of no direct replacement, a van based on the Fiesta bearing the Transit Courier/Tourneo Courier name was revealed in Yeniköy, Turkey, in 2013 under Ford Otosan (Koc-Ford Motor Company Joint Venture).


title: Ford Courier

text: The name was also applied to a small coupe utility of similar layout produced by Ford in Brazil and exported to countries such as Mexico. It is based on the 1998 model of the Ford Fiesta. While its front treatment is the same as the South African-built Fiesta-based Ford Bantam "bakkie" coupe utility, it has a completely different load box. The South African version had the short doors of the five-door hatchback and small quarter lights in the style of larger extended cab pickups, and the Brazilian version had the three-door's longer doors and no quarter windows.


title: Ford Courier

text: Its load capacity is . Until 1999, the Courier used the Endura 1.3-liter engine and the Zetec-SE 1.4-l 16v engine. The Mk IV 1.4 16v Zetec-SE has a top speed of and can accelerate from in 12 seconds. Since 2000, both engines were replaced by the Zetec Rocam 1.6-liter. The Mk V 1.6 model has top speed of and can accelerate from 0–100 km/h in 10 seconds.


title: Ford Courier

text: Ford announced in January 2002 that it is going to transfer the entire production of the Courier pickup to the factory in São Bernardo do Campo, in the ABC region of São Paulo, starting in May 2002. Production of the pickup truck is currently divided between the São Bernardo do Campo plant in the state of São Paulo and the Camaçari plant in Bahia state. The transfer agreement was signed on January 22, 2002 with workers representatives.


title: Ford Courier

text: From 2013, the plant in São Bernardo do Campo in Brazil has suspended the manufacturing model for ordinary consumers and business, but Ford has not confirmed that the model was taken from line definitely. Despite Ford not confirming that the Courier was taken from line definitely, the Courier had seemed to end production and was possibly replaced by the Ford Ranger (T6). In Mexico, it stopped being sold after 2010.


title: Democratic Party of Albania

text: The Democratic Party of Albania (, PD or PDSH) is a conservative political party in Albania. It has been the largest opposition party in the country since 2013.


title: Democratic Party of Albania

text: The Democratic Party of Albania was founded in 1990 as a strongly anti-communist party with the majority of its followers being from politically persecuted dissidents of the communist dictatorial regime of Enver Hoxha.


title: Democratic Party of Albania

text: In international relations, the Democratic Party of Albania is an associate member of the European People's Party and a full member of International Democrat Union.


title: Democratic Party of Albania

text: The Democratic Party was founded on 12 December 1990 with major involvement from Avdyl Matoshi, Azem Hajdari, Sali Berisha and Gramoz Pashko, and Arben Imami, Edmond Budina, Eduart Selami, Genc Ruli, Merita Zaloshnja, Aleksandër Meksi involved only in the early stages of the formation of the party. It is the first opposition party in Albania after more than 45 years of a communist leadership. The party was created as an anti-communist movement.


title: Democratic Party of Albania

text: The First Pluralist would be the first elections since 1923 to allow more than one Party. The Ruling Labour Party of Albania during the 1991 Elections had the biggest advantage during the election. Including the influence over the media. There was no opportunity for the Democratic party and other Anti-Communist parties in the election to influence the rural country side. The Democratic Party platform had promised the transformation of living standards through membership in the European Community, strong connection with the United States and other Western nations, "Gastarbeiter" in German factories abroad, and immediate steps towards a free-market economy. Which resulted in the Democratic Party coming in second place in results. The Democratic party would ultimately win in the next Election.


title: Democratic Party of Albania

text: The Democratic Party of Albania won the parliamentary elections of 22 March 1992, the second free and fair elections after many decades of mandatory and single communist party candidate elections. Sali Berisha its leader was elected as the second President of Albania, which at the time had executive powers, and Aleksandër Meksi as Prime Minister. Sali Berisha with significant contribution in the formation of the party, and Aleksandër Meksi with minor contribution. The second pluralist government of Albania governed by the Democratic Party and its leader was tasked with executing reforms to turn the country from a communist style everything in the hands of the government rule into a democratic country based in free markets, property rights, individual rights, and without interference of the government in the private lives of its citizens.


title: Democratic Party of Albania

text: Four years after the second free and fair elections, new free and fair election in respect to the new Constitution of Albania adopted in 1991, conform other democratic western and European countries were due. The elections were held on 26 May 1996. The main and well known political leaders of the party that governed the Republic of Albania for more than 45 years, under a ruthless regime, were no longer a major participant in the election. However, the party itself and its new and less known leaders at the time of the former Labor Party, the main political party during the communist regime was reformed, changed its platform conform to other parties that held the same believes, mainly left-wing philosophies, conform democratic standards, and its name to the Socialist Party of Albania. It was the only serious opponent and challenger to the Democratic Party of Albania in the 26 May 1996 presidential elections. During these elections the international election observers were limited in numbers. The Democratic Party of Albania and its allies were able to win more than 71 seats in the parliament, on the Presidential Election of 26 May 1996, enough to form the majority and stay in government. Sali Berisha and Aleksandër Meksi respectively remained President and Prime Minister of the Republic of Albania, until new parliamentary election were called due to the Ponzi-Schemes crisis, held on 29 June 1997.


title: Democratic Party of Albania

text: The Ponzi-Schemes lead to civil unrest that culminated in early spring of 1997. The crisis was deeply severe. The government led by the Democratic Party of Albania and its leader due to civil unrest was not able to function properly in many parts of the country, especially in the south of Albania. The fact that these Ponzi-Schemes were endorsed by the government (led by the Democratic Party of Albania) or suggested people to invest in these schemes and the majority of the people who invested in these Ponzi-Schemes blamed the Democratic Party's government for the failure of the Ponzi-Schemes. As a result of this crisis and internal civil unrest new parliamentary election were called on 29 June 1997 to sooth the situation. As a result of these elections the Democratic Party of Albania lost its elections to its opposition party, Socialist Party of Albania.


title: Democratic Party of Albania

text: A little more than a year after the Socialist Party of Albania took control of the government on 12 September 1998 Azem Hajdari one of the founding members of the Democratic Party of Albania and a very important political figure within the party was assassinated. His assassination lead to further unrest in Albania. The Democratic Party of Albania was in opposition and its leader, the former President of Albania (with executive powers), who was in the leadership of the party during this time, Sali Berisha, accused the government of the Socialist Party of Albania as the perpetrator of the assassination of Azem Hajdari.


title: Democratic Party of Albania

text: On 24 June 2001 the next parliamentary elections on the due date as provided by the constitution were held. These elections were also lost by the Democratic Party of Albania although not as deeply as the previous elections. The Democratic Party alleged irregularities and did not accept the result of the elections. ODHIR and OSCE which were involved in monitoring the elections and as an independent party declared on their final report that the elections were marked by irregularities and that repeated voting in some electoral zones increased the violations and irregularities of the election. To what extent these irregularities and violations helped the Socialist Party of Albania win in such a wide range was not determined or conclusive in the election report.


title: Democratic Party of Albania

text: In the 2005 parliamentary elections, the Democratic Party won 56 of the 140 seats and its allies won 18 under the call "Time to Change" ("Koha per Ndryshim"). Two other parties also joined the new coalition (PAA of the left wing & PBDNJ of the Greek minority, with 4 and 2 seats, respectively). This meant that with a combined total of 79 seats, the Democratic Party and its allies were able to form a government with Sali Berisha becoming Prime Minister. One of his priorities was Albanian integration to NATO, an objective he accomplished in 2009 when Albania and Croatia were accepted as members. The biggest tragedy after Albanian Civil War happened in Saturday 15 March 2008 which is known as 2008 Gërdec explosions . Officially, Albanian authorities confirmed 26 deaths in the explosions. Officials report the number of injured people at over 300. According to figures published by the Prime Minister's Office, 2,306 buildings were damaged or destroyed in the explosions. Of these, 318 houses were destroyed completely, 200 buildings were seriously damaged, and 188 buildings were less seriously damaged.


title: Democratic Party of Albania

text: On 28 June 2009 the next elections that were due on the date provided were held. The elections were won by the Democratic Party with its electoral alliance. Alliance of Change ("Aleance e Ndryshimit)." The alliance consisted of mostly Right Wing parties. Shortly before the election the Ethnic Greek unity party had switched to join the Center Left alliance of Edi Rama Unification for Change ("Bashkimi për Ndryshim)". Due to the PDIU, a party representing the interest of Cham Albanians whose properties in Greece were seized after the Second world war. Nevertheless the Democratic party with its alliance had won 70 out of the 140 seats. It was unclear whether the Democratic party and its alliance had won 70 or 71. On 4 July 2009, Ilir Meta leader of LSI announced he had accepted a deal to form a working majority coalition. Making PD and its alliance have 74 out of 140.


title: Democratic Party of Albania

text: After the defeat in the 2013 parliamentary election, Berisha announced his resignation as party leader. A one-member-one-vote election was held for the first time on 23 July 2013, in which Lulzim Basha defeated his opponent Sokol Olldashi and was elected Chairman of the Democratic Party.


title: Democratic Party of Albania

text: On 30 September 2014, a national congress of the Democratic Party was held to elect a new leadership and to announce a tough reform of the party.


title: Democratic Party of Albania

text: On the 26th anniversary of the Democratic Party, party leader Basha announced his program for the further modernization and democratisation of the party ahead of the 2017 parliamentary elections.


title: Democratic Party of Albania

text: After previously promising that 35% of the parliamentary candidates would consist of members from the youth movement of the Party, Basha now announced a limitations of all mandates of the party leaders to a two-year term, and the full democratisation of the internal election process.


title: Democratic Party of Albania

text: On 18 February 2017 members of the Democratic Party and other opposition parties, under the leadership of Basha pitched a giant tent outside the Prime Minister's office in Tirana after thousands of protesters rallied to demand free elections and a technocrat government. The opposition protest further escalated into a larger political conflict. The Democratic Party and its allies refused to register to take part in the 25 June general election, until the government will accept their conditions to secure a free and democratic election.