[DOC] [TLE] Hydroelectric power in the United States - Wikipedia [PAR] Hydroelectric power stations in the United States are currently the largest 
renewable source of .... Water is pumped from a lower elevation source into a 
higher one and only released through generators when electric demand is high. 
... Other stations of this type include Raccoon Mountain Pumped-Storage Plant, 
Bear Swamp... [DOC] [TLE] Pumped-storage hydroelectricity - Wikipedia [PAR] Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage 
(PHES), is a type of hydroelectric ... Pumped-storage hydroelectricity allows 
energy from time-inflexible sources (such as nuclear, solar, and ... Pumped 
storage is the largest-capacity form of grid energy storage available, and, as of 
March 2012,... [DOC] [TLE] The world's most used renewable power sources - Power Technology [PAR] Jan 15, 2014 ... Hydropower is the most widely-used renewable power source, with the global ... 
Pumped-storage type plants represent another method of hydroelectricity 
generation. ... and hosts the world's largest hydro power plant, the Three Gorges (
22.5GW). The nation accounted for over 50% of the total hydroelectric... [DOC] [TLE] Hydropower Technology and Types of Hydroelectric Power Plants ... [PAR] Hydropower: Hydroelectric power generates about 10% of the nation's energy. ... 
Another type of hydroelectric power plant - called a pumped storage plant - can ... 
Justice Delayed  New Sources of Carbon Pollution and the Clean Power Plan 
... in the strategic agendas of some of the world's largest power and industri. [DOC] [TLE] How Hydroelectric Energy Works | Union of Concerned Scientists [PAR] Learn how moving water is converted into electricity in this comprehensive ... as 
hydroelectric power, is the largest source of emissions-free, renewable ... The 
Grand Coulee dam on the Columbia River in Washington is one of the largest 
dams in the world, ... Another type of hydropower technology is called pumped 
storage. [DOC] [TLE] Pumped Storage | National Hydropower Association [PAR] Pumped storage provides vital support to our nation's electricity grid, helping to ... 
with renewable energy mandates in place in 30 states, variable generation is ... 
When the pumped storage plant is generating power, the water falls from the ... 
The closed loop project is the fifth largest pumped storage facility in the country. [DOC] [TLE] Pumped Storage - Hydropower Reform Coalition [PAR] variable renewable power sources' penetration into the United States energy 
supply ... States (Figure 1) provide more than 20 GW, or nearly 2%, of the 
capacity for our nation's ... Pumped storage is a type of hydroelectric power 
generation that stores ... pumped storage plants are transmission facilities and 
they can be very... [DOC] [TLE] The Role of Energy Storage with Renewable Electricity Generation [PAR] 5 Storage and Flexibility Options for Renewables-Driven Grid Applications . .... 1. 
1 Introduction. Renewable energy sources, such as wind and solar, have vast ... 
variety of power plant types. .... This period also saw the largest .... plants. During 
the mid- to late 1970s, much of the nation's 20 GW of pumped hydro storage was. [DOC] [TLE] Hydropower Technology Development | Department of Energy [PAR] Hydroelectric power is the largest source of renewable electricity in the ... 
producing about 6.3% of the nation's total electricity throughout the last decade. 
... water conveyance systems, pumped storage hydropower, and new site ... our 
clean energy futureacting as a renewable form of grid stabilization and .... April 
1, 2000. [DOC] [TLE] Hydroelectric Power - usbr.gov [PAR] It=s a form of energy  a renewable resource. ... hydroelectric plants supplied as 
much as 40 percent of the electric energy ... forms of energy generation, and 
hydroelectric generators respond quickly to ... While hydroelectric powerplants 
are one source of electricity, other sources include .... water pumped to a storage 
pool. [DOC] [TLE] Renewable Energy and Electricity | Sustainable Energy ... [PAR] There is unprecedented interest in renewable energy, as sources of sustainable 
... Only one, the power of falling water in rivers, has been significantly tapped for 
... Apart from pumped-storage hydro systems (see later section), no

Question: Pumped-storage is one type of plant for this, the nation's largest renewable electricity source
Answer: hydroelectric