ＯＴＥＣ
Vol. 27（2022），59 ～ 68

59

Wind Energy Potential In Indonesia (Case Study in Thousand
Islands)
Rizky IRVANA*1,2, Fahreza FALDI2, Muhammad Ravi BASYAH2 and Azhar BRAMANTIO2*1 Center for Maritime Studies Darma Persada, Darma Persada University
South Malacca Park Street, East Jakarta, DKI Jakarta, 13450, Indonesia
2
Faculry of Ocean Technology, Department of Marine Engineering, Darma Persada University
South Malacca Park Street, East Jakarta, DKI Jakarta, 13450, Indonesia

Abstract
We know that this country of Indonesia consists of thousands of islands and has a very wide sea, whichmeans it has several sources of energy that we can use, such as waves of sea water and wind that can help us getenergy sources. So it is regrettable if this energy source is not used correctly. One of the most potent energies iswind energy. Moreover, the wind is in mountainous areas, valleys, and areas around the coast of Indonesia. This
energy source is free from the pollution often associated with fossil fuel and nuclear power plants. This energy
can be utilized by converting mechanical energy produced by windmills into electrical energy. The wind is used
as an energy source using windmills. To obtain stable energy, the placement of the wind turbine is carried out inan area with a relatively constant wind speed, with a wind direction that does not change. The offshore area is
one of the suitable places for the placement of the wind turbine because the offshore wind speed is better thanon land, and offshore wind power's contribution to providing electricity is much higher. From the problems
above, what is desired from the use of wind energy found in the offshore area can help the community getelectricity and avoid electricity consumption with expensive subsidies. Calculation of potential energy using asimple energy formula. The turbines are installed at a height of 5, 10, 15 and 20 meters to determine the potential
speed of each altitude. The energy generated per day from each height is above 500 Joules for each 1 poleinstalled and the energy that can be converted into electricity is around 150 Watts with each height having a
diameter of 4 m.
Key words : Pollution Reduction, Wind Energy, Renewable Energy, Wind Energy

1. Introduction
Today's energy needs are increasing in both developed and developing countries such as Indonesia. The need foralternative energy sources is already a global issue as an effort to anticipate the increase in energy use and the depletionof conventional energy sources or fossil energy sources throughout the world (Sheptiawan et al., 2001). At present it isvery prone to a global electrical energy crisis due to an increase in population that cannot be avoided anymore. The needto produce electricity has led to a search for alternative renewable energy sources. It is known that more than 82% ofcommercial energy consumption comes from petroleum, so one day Indonesia will experience an energy crisis. The world
really needs energy every second, especially in Indonesia today, which continues to increase day by day. This is due topopulation growth, economic growth and the pattern of energy consumption itself is increasing. And the availability ofenergy found on earth will decrease (Novrita et al., 2021).
Energy resources that have been widely used so far are non-renewable types of energy, these energy sources will runout and humans must switch to other energy sources that can still be used. This condition encourages the worldcommunity and Indonesia to use energy from renewable energy sources (Rachman, 2012). Several new renewable energy* Date of Manuscript Acceptance 2023.1.11

E-mail of corresponding author: rizky4568@gmail.com

60

Rizky IRVANA, Fahreza FALDI, Muhammad Ravi BASYAH and Azhar BRAMANTIO

sources have been developed in various parts of the world. Starting from this, it is necessary to look for other alternatives
so that we do not only depend on oil energy but utilize other sources such as wood, coal, various waste residues such as
straw, bagasse, sawdust, petroleum, natural gas, solar energy, wave energy, water energy, geothermal energy, wind energy,
and so on. Wind energy includes renewable energy which is defined as energy that can be quickly reproduced throughnatural processes. Some of the advantages of renewable energy include: the source is relatively easy to obtain, can beobtained free of charge, minimal waste, does not affect the global temperature of the earth, and is not affected by risingfuel prices. Indonesia is a country that has abundant energy resources, one of which is wind energy. Indonesia which isan archipelagic country and one of the countries located on the equator is a factor, that Indonesia has abundant windenergy potential. The potential for wind energy in Indonesia is quite adequate, because the average wind speed is around3.5 - 7 m/s (Sheptiawan et al., 2001).
The territory of Indonesia which is located around the equator is a meeting area for the Hadley, Walker and local
circulations. This condition is suspected to have a large wind potential (Utami et al., 2018). These conditions cause
Indonesia to have high wind potential and can be used to develop renewable energy as an alternative to electricity
generation (Novrita et al., 2021). The current use of electrical energy continues to increase resulting in an increasing
electricity crisis in Indonesia. Currently, most of the energy used by the Indonesian people comes from fossil fuels(Simamora et al., 2020). According to research results from the National Institute of Aeronautics and Space (LAPAN),
out of 166 locations where research has been carried out, there are 35 locations that have wind potential with wind speeds
above 5 meters per second at an altitude of 50 meters. These locations include West Nusa Tenggara (NTB), East Nusa
Tenggara (NTT), the south coast of Java and the south coast of Sulawesi. In line with the high potential of wind energy,
the President of the Republic of Indonesia through Presidential Decree No. 22 of 2017 issued a regulation regarding the
National Energy General Plan (RUEN) which contains references for carrying out wind energy development plans per
Province or Regional Energy General Plans (RUED (Rahman, 2015). In addition, in the process of achieving the targetsof the National Energy General Plan (RUEN) and Regional Energy General Plan (RUED), there are several regulations
that require the Regional Government to build and manage PLTB (Wind Power Plants) through BUMD (Regional Owned
Enterprises), improve quality and quantity of surveys and mapping of wind/wind power potential, conducting prefeasibility studies for areas that already have wind potential measurements and continuing with feasibility studies for
PLTB construction and building PLTB generating units in remote areas and outer islands. Information about wind energy
is fundamental and very important in efforts to maximize its utilization (Utami et al., 2018).
Indonesia is a country whose area of 62% is sea and waters and Indonesia has thousands of islands, around 17,500
islands and has a coastline length of 81,000 km. This data was confirmed by the KKP, the land area is 1.91 million km2
while the water area reaches 6.32 km2. From this we can take advantage of resources from sea breezes that are locatedoffshore because in that area the wind tends to be bigger and it is very helpful for charging energy using wind power
which can produce mechanical or electrical power by installing wind turbines around offshore Indonesia.

Fig. 1Indonesian coastline.

Wind energy is an alternative energy that has good prospects, because it has a clean and renewable source and has afairly good energy density and ease of energy change/transfer, but not all regions in Indonesia have an even wind speed.
According to the report of the Minister of Energy and Mineral Resources (ESDM) (2005) the potential for wind energy

Wind Energy Potential In Indonesia (Case Study in Thousand Islands)

61

in Indonesia is still very likely to be studied, because there are certain areas that have speeds above the average (5 – 6m/s) (Utami et al., 2018). Wind energy can be used to drive sailing ships, generate electricity, use it in irrigation, dry
clothes and hair, cool machines and others (Ihwan and Sota, 2010). Some of the advantages of renewable energy include:
the source is relatively easy to obtain, can be obtained free of charge, minimal waste, does not affect global temperatures,and is not affected by rising fuel prices (Daryanto, 2007). Knowledge of the exact location of wind energy sources to be
utilized is very crucial (Rizkiani, 2012). Determining the location for a wind power plant is not easy. Determining thislocation is very complex and requires research on choosing the right location. This is due to the lack of availability ofdata on the potential of local wind energy resources (Utami et al., 2018). Indonesia's wind energy potential is identified
as around 978 MW. In several locations in Indonesia, research and measurement of wind energy potential has been carriedout several times by government agencies such as (LAPAN, BMKG). The potential for wind power on land is limited,with average wind speeds between 3 m/s and 7 m/s. Large-scale wind turbine technology can work well at speeds between
5 – 20 m/s. Less than 5 m/s is more suitable for conversion into mechanical energy or small-scale wind power generation,
so for areas that have wind speeds below 5 m/s it is more suitable to use a vertical shaft wind turbine to produce goodelectricity (Notosudjono, 2017).

Fig. 2

Research location.

Indonesia has a wind energy potential of 978 MW. The largest wind energy potential is in the Sidrap and Jeneponto
regions in South Sulawesi, which has the potential to generate more than 200 MW of electricity from the wind. In Sidrap
it has a capacity of 75 MW and in Jeneponto it has a capacity of 72 MW. Apart from Sidrap and Jeneponto, other regions
also have quite large potential sources of wind energi (Prasetyo et al., 2018). The potential for wind energy is very
possible to be developed in Indonesia, namely the potential of 73 GW, the optimum installed capacity is 25 MW, while
the current capacity is only 0.6 MW, so that the potential for wind energy economically has investment opportunities thathave prospects in the future (Ihwan & Sota, 2010).

Fig. 3Thousand Islands

62

Rizky IRVANA, Fahreza FALDI, Muhammad Ravi BASYAH and Azhar BRAMANTIO

Energy needs in Indonesia continue to increase, especially in coastal areas due to uneven sources of electricity,
therefore to solve this problem a source of electricity is needed that can be utilized and wind can be a source of electric
power that can be utilized besides being able to produce wind energy sources as well as energy source that is safe fromthe environment because it does not harm the surrounding environment. With data on local wind energy potential, it ispossible to plan the creation of wind energy generators that can be utilized to meet long-term energy needs on an ongoingbasis without the need for interconnection of energy from other regions or even being able to supply energy to otherregions (Utami et al., 2018). Therefore, it is very appropriate to study the potential use of wind energy to identify areasthat have the potential to produce wind energy as a source of unlimited electrical energy in the Thousand Islands.

2. Methodology
Wind is air moving from higher air pressure to lower air pressure. The difference in air pressure is caused bydifferences in air temperature due to the uneven heating of the atmosphere by sunlight. Because of that movement, thewind has kinetic energi. Wind energy can be converted or transferred into other forms of energy such as electricity ormechanics by using a windmill or wind turbine. Therefore, windmills or turbines are often referred to as Wind Energy
Conversion Systems (walks) (Ihwan & Sota, 2010). Utilizing wind energy to drive windmills which are then converted
to other forms of energy, wind speed and wind direction data are needed over a long period of time. Wind energy is akinetic energy or energy due to wind speed and then this kinetic energy can be used to rotate the windmill blades. This
energy can be calculated by the formula:
𝐸𝐸 = 1/2 𝑚𝑚𝑚𝑚^2 ... Joule(1)
Power is energy per unit time. Wind power is directly proportional to the air density, and the cubic wind speed. The
𝜋𝜋power caused by the kinetic energy of the wind flow with speed v, density ρ, through a cross section A =𝑑𝑑 2 .
4

If an air block has a cross section A with a velocity V (m/s), then the total mass of air flowing each seconds is:
𝑚𝑚 = 𝐴𝐴𝐴𝐴𝐴𝐴 ... Kg/s
Furthermore, the energy produced per unit time is obtained:
1
𝑃𝑃 = 𝐴𝐴𝑉𝑉 3 𝜌𝜌 ... Watt
2

(2)

(3)

However, not all of the wind power can be utilized by the turbine because in fact there is a loss of friction on theturbine blades. According to Brown, C.K. and Warne (1975) the effective power of the wind that may be generated by awindmill can be calculated by the formula:1
𝑃𝑃 = 𝐶𝐶𝐶𝐶𝑉𝑉 3 𝜌𝜌𝐷𝐷2 ...Watt(4)2

Where Cp and D are a coefficient of the power and diameter of the wind turbine. The value on Cp is 0.4.
Furthermore, the wind energy conversion system for generating electricity is calculated by the formula:
𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃
1() 𝑊𝑊𝑊𝑊 = 𝑉𝑉 3 𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌𝜌 ...Watt/m2
𝐴𝐴

2

(5)

By successively known are the efficiency of the transmission, generator and battery. The values of the efficiency are
respectively 0.95, 0.85 and 0.75.

3. Data
The Thousand Islands Administrative District Government is one of the administrative areas under the Provincial
Government of DKI Jakarta. Geographically the location of the Thousand Islands Administrative District is between
106º19'30" - 106º44'50" East Longitude and 5º10'00" - 5º57'00" South Latitude. The total area of the Thousand Islands
Administrative District is 4,745.62 km2 consisting of 8.76 km2 of land, 4,690.85 km2 and 46 km2, consisting of morethan 110 islands. The administration of the Thousand Islands Administrative District is divided into 2 Districts, namely
the North Thousand Islands District and the South Thousand Islands District. The number of sub-districts in the Thousand
Islands Administrative District is 6 Sub-districts, namely Kelapa Island Sub-district, Harapan Island Sub-district,
Panggang Island Sub-district, Tidung Island Sub-district, Pari Island Sub-district and Untung Jawa Island Sub-district.
The Thousand Islands Administrative District has a northern border with the Java Sea / Sunda Strait, east with the Java
Sea, south with North Jakarta Administrative City and west with the Java Sea / Sunda Strait.

63Wind Energy Potential In Indonesia (Case Study in Thousand Islands)

As a study material for the potential of wind energy. The author takes wind energy speed data obtained based on
valid data. To facilitate data collection using secondary data assistance from the web
http://indonesia.windprospecting.com/ and https://globalwindatlas.info/en/area/Indonesia.
This mesoscale wind resource map is available for public use. The map was developed in 2014-2017 by EMD
International A/S, Denmark, financed by the Environmental Support Programme 3 (ESP3) / Danida. The project was
implemented for The Ministry of Energy and Mineral Resources, Indonesia, and ESP3. The applied mesoscale model is
WRF (Weather and Research Forecast Model) with a spatial resolution of 0.029° (ca. 3 km) and driven by Era-Interim
global data from the period 2004-2015. The Global Wind Atlas is a free, web-based application developed to help
policymakers, planners, and investors identify high-wind areas for wind power generation virtually anywhere in theworld, and then perform preliminary calculations. The Global Wind Atlas facilitates online queries and provides freely
downloadable datasets based on the latest input data and modeling methodologies. Users can additionally download highresolution maps of the wind resource potential, for use in GIS tools, at the global, country, and first-administrative unit
(State/Province/Etc.) level in the Download section. Information on the datasets and methodology used to create the
Global Wind Atlas can be found in the Methodology and Datasets sections.
From the author's observations, the potential for wind conditions in the Thousand Islands region is strong enough toturn the wheel. This research begins with the selection of coastal areas that are limited by the outermost areas of residential
areas. As for wind speed data taken at a height of 5, 10, 15, and 20 meters for 1 month, namely October.
Table 1Wind Speed

High 5 (m)Speed (m/s)

High 10 (m)Speed (m/s)

High 15 (m)Speed (m/s)

High 20 (m)Speed (m/s)

1

4.4

4.41

4.42

4.43

2

4.42

4.43

4.43

4.44

3

4.42

4.43

4.44

4.45

4

4.45

4.46

4.47

4.48

5

4.48

4.49

4.5

4.51

6

4.52

4.53

4.54

4.55

7

4.54

4.55

4.55

4.56

8

4.43

4.44

4.44

4.45

9

4.37

4.38

4.39

4.4

10

4.05

4.09

4.13

4.17

11

4.32

4.33

4.33

4.34

12

4.26

4.27

4.27

4.28

13

4.26

4.27

4.27

4.28

14

4.37

4.38

4.39

4.4

15

4.48

4.49

4.5

4.51

16

4.6

4.62

4.63

4.64

17

4.7

4.71

4.72

4.73

18

4.6

4.63

4.63

4.65

19

4.58

4.59

4.6

4.61

20

4.46

4.47

4.47

4.48

21

4.42

4.43

4.43

4.44

22

4.4

4.41

4.42

4.43

23

4.39

4.4

4.41

4.42

24

4.39

4.4

4.41

4.42

25

4.26

4.27

4.27

4.28

26

4.4

4.4

4.42

4.44

Date

64

Rizky IRVANA, Fahreza FALDI, Muhammad Ravi BASYAH and Azhar BRAMANTIO

27

4.21

4.32

4.23

4.24

28

4.16

4.18

4.21

4.22

29

4.44

4.44

4.44

4.44

30

4.35

4.37

4.38

4.4

31

4.35

4.37

4.38

4.4

4. Results and Discussion
This experiment was carried out in the Seribu Islands area. In this experiment wind speed measurements were
measured using the help of the web which is explained in the Data Chapter. By using web, you can measure speed in realtime. From the observation of secondary data wind speed measured for 1 month shows that there is a fluctuating windspeed pattern. The results of the calculation of the relative frequency distribution of wind speed during one month thatblows in the Thousand Islands range from 4.04 - 4.7 m/s. The most dominant wind speed distribution is at 4.4 – 4.6 m/s.
Based on the measurement results in Table 1, it shows that the highest wind speed occurred on October 17, reaching 4.7
m/s, the lowest wind speed occurred on October 10, which was 4.05 m/s for a height of 5 meters. Wind speed The highest
wind speed occurred on October 17, reaching 4.71 m/s, the lowest wind speed occurred on October 10, namely 4.09 m/s
for a height of 10 meters. Wind speed The highest wind speed occurred on October 17, reaching 4.72 m/s, the lowest
wind speed occurred on October 10, namely 4.13 m/s for a height of 15 meters. Wind speed The highest wind speed
occurred on October 17, reaching 4.73 m/s, the lowest wind speed occurred on October 10, namely 4.17 m/s for a heightof 20 meters. It is said to be a location with an average wind speed of 2.5 – 4 m/s, the power generated is 200 – 1000
kWh/year. This condition is quite good as a driving force for small-scale electrical energy conversion systems and forpumping purposes [4]. The amount of wind energy which is kinetic energy is calculated based on the average wind speed
parameter.
Table 2

Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

Wind energy potential at a height of 5 meters

High 5 (m)Mass
66,317
66,61866,61867,07067,523
68,12568,427
66,76965,86561,042
65,11164,20764,20765,86567,523
69,331
70,83869,331
69,03067,221
66,618

Kinetic Energy
641,947
650,740
650,740
664,081
677,602695,915705,194
655,167
628,905
500,617607,564582,599582,599
628,905
677,602733,524
782,410733,524
723,998
668,568
650,740Power
641,947
650,740
650,740
664,081
677,602695,915705,194
655,167
628,905
500,617607,564582,599582,599
628,905
677,602733,524
782,410733,524
723,998
668,568
650,740

Effective Power327,107
331,587
331,587
338,385
345,275
354,606
359,334
333,843
320,461
255,092
309,587
296,866
296,866
320,461
345,275
373,770
398,680
373,770368,916
340,671
331,587

Energi Conversion
155,512
157,642
157,642
160,874
164,149
168,585
170,833
158,714152,352
121,275
147,182
141,135
141,135
152,352
164,149
177,696
189,539
177,696
175,388
161,961
157,64265

Wind Energy Potential In Indonesia (Case Study in Thousand Islands)

22
23
24
25
26
27
28
29
30
31

66,317
66,166
66,16664,20766,31763,45362,70066,92065,56365,563641,947
637,580
637,580
582,599
641,947
562,325
542,526
659,614620,310620,310

641,947
637,580
637,580
582,599
641,947
562,325
542,526
659,614620,310620,310327,107324,881324,881
296,866
327,107286,535
276,447
336,109
316,081
316,081

155,512
154,454
154,454
141,135
155,512136,223
131,427
159,791
150,270
150,270

To determine the wind energy in the Thousand Island area, it is necessary to know the wind mass in the area. Wind
mass can be calculated if data regarding the cross-sectional area of the air sweep, air density and air speed are known in
the area. The density of air is in accordance with existing standards, namely 1.2 kg/m2, the cross-sectional area adjuststo the wind turbine blade that will be used later, which is 4 meters in diameter and the wind speed is used based on dataobtained from table 1. Calculations use eq (1) to calculate wind mass and equation (2) to calculate wind energy. The
amount of wind energy which is kinetic energy is calculated based on the wind speed parameter and shows that thegreatest wind energy for a height of 5 meters is 782 joules and the lowest is 500 joules. In 1 day, on average, you will get
about 644 joules of energy. If converted into potential power potential that can be generated into electrical energy in 1
day is around 156 Watt/day for a height of 5 meters per 1 windmill.
Table 3

Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

Wind energy potential at a height of 10 meters

High 10 (m)Mass66,46866,76966,76967,221
67,673
68,276
68,57866,92066,01561,64465,26264,35764,35766,01567,673
69,63370,98969,783
69,18067,372
66,76966,46866,317

Kinetic Energy
646,333
655,167
655,167
668,568
682,150
700,544
709,864
659,614633,233
515,598
611,793586,711586,711633,233
682,150
743,133
787,415
747,969
728,751
673,075
655,167
646,333
641,947Power
646,333
655,167
655,167
668,568
682,150
700,544
709,864
659,614633,233
515,598
611,793586,711586,711633,233
682,150
743,133
787,415
747,969
728,751
673,075
655,167
646,333
641,947

Effective Power329,342
333,843
333,843
340,671
347,592
356,965
361,714336,109322,666
262,725
311,742
298,961
298,961
322,666
347,592
378,667
401,231
381,131371,338
342,968
333,843
329,342
327,107

Energi Conversion
156,574
158,714
158,714
161,961
165,251
169,707
171,965
159,791
153,401
124,903148,207
142,131
142,131
153,401
165,251
180,024
190,751
181,196
176,540
163,052
158,714
156,574
155,512

66

Rizky IRVANA, Fahreza FALDI, Muhammad Ravi BASYAH and Azhar BRAMANTIO

24
25
26
27
28
29
30
31

66,31764,35766,317
65,111
63,001
66,92065,86565,865641,947
586,711
641,947
607,564
550,389
659,614628,905
628,905

641,947
586,711
641,947
607,564
550,389
659,614628,905
628,905

327,107298,961
327,107309,587
280,453
336,109
320,461
320,461

155,512142,131
155,512147,182
133,332
159,791
152,352
152,352

The amount of wind energy which is kinetic energy is calculated based on based on data obtained from table 1.
Calculations use eq (1) to calculate wind mass and equation (2) to calculate wind energy. The wind speed parameter andshows that the greatest wind energy for a height of 10 meters is 787 joules and the lowest is 518 joules. In 1 day, on
average, you will get about 651 joules of energy. If converted into potential power potential that can be generated into
electrical energy in 1 day is around 157 Watt/day for a height of 10 meters per 1 windmill.
Table 4

Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

Wind energy potential at a height of 15 meters

High 15 (m)Mass66,61866,76966,92067,372
67,82468,427
68,57866,92066,166
62,24765,26264,35764,357
66,16667,82469,783
71,14069,783
69,331
67,372
66,76966,61866,46866,46864,357
66,61863,75563,453
66,92066,01566,015

Kinetic Energy
650,740
655,167
659,614673,075
686,718
705,194
709,864
659,614
637,580
530,873
611,793586,711586,711
637,580
686,718
747,969
792,441
747,969
733,524
673,075
655,167
650,740
646,333
646,333
586,711650,740
570,377
562,325
659,614633,233
633,233

Power
650,740
655,167
659,614673,075
686,718
705,194
709,864
659,614
637,580
530,873
611,793586,711586,711
637,580
686,718
747,969
792,441
747,969
733,524
673,075
655,167
650,740
646,333
646,333
586,711650,740
570,377
562,325
659,614633,233
633,233

Effective Power
331,587
333,843
336,109342,968
349,920359,334
361,714336,109324,881
270,509311,742
298,961
298,961
324,881349,920
381,131403,792
381,131373,770
342,968
333,843
331,587
329,342
329,342
298,961
331,587
290,638
286,535
336,109322,666
322,666

Energi Conversion
157,642
158,714
159,791
163,052
166,357
170,833
171,965
159,791
154,454
128,604
148,207
142,131
142,131
154,454
166,357
181,196
191,969
181,196
177,696
163,052
158,714
157,642
156,574
156,574
142,131
157,642
138,174
136,223
159,791
153,401
153,401

67

Wind Energy Potential In Indonesia (Case Study in Thousand Islands)

From the results of the calculations shown in table 3, like the 2 previous tables the calculation of mass and energy
using eq (10 and (2). Obtained that the greatest wind energy for a height of 10 meters is 792 joules and the lowest is 530
joules. In 1 day, on average, you will get about 653 joules of energy. If converted into potential power potential that canbe generated into electrical energy in 1 day is around 158 Watt/day for a height of 15 meters per 1 windmill.
Table 5

Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

Wind energy potential at a height of 20 meters

High 20 (m)Mass66,76966,92067,07067,523
67,97568,57868,72867,07066,31762,85065,41264,50864,50866,317
67,97569,93471,291
70,08569,482
67,523
66,92066,76966,61866,61864,50866,92063,90563,604
66,92066,31766,317

Kinetic Energy
655,167
659,614664,081
677,602691,306
709,864
714,555
664,081641,947
546,448
616,042590,843
590,843
641,947
691,306
752,826
797,488757,704
738,318
677,602659,614655,167
650,740
650,740
590,843
659,614574,432
566,341
659,614641,947
641,947

Power
655,167
659,614664,081
677,602691,306
709,864
714,555
664,081641,947
546,448
616,042590,843
590,843
641,947
691,306
752,826
797,488757,704
738,318
677,602659,614655,167
650,740
650,740
590,843
659,614574,432
566,341
659,614641,947
641,947

Effective Power333,843
336,109338,385
345,275
352,258
361,714364,104
338,385
327,107278,445
313,907
301,067
301,067
327,107352,258
383,606
406,363
386,091376,213345,275
336,109333,843
331,587
331,587
301,067
336,109292,704
288,582
336,109327,107327,107

Energi Conversion
158,714
159,791
160,874
164,149
167,469
171,965
173,101
160,874
155,512132,377
149,236
143,132
143,132
155,512167,469
182,372
193,192
183,554
178,858
164,149
159,791
158,714
157,642
157,642
143,132
159,791
139,156
137,196
159,791
155,512
155,512

Table five presents that the greatest wind energy for a height of 10 meters is 797 joules and the lowest is 546 joules.
In 1 day, on average, you will get about 659 joules of energy. If converted into potential power potential that can begenerated into electrical energy in 1 day is around 159 Watt/day for a height of 20 meters per 1 windmill. The minimum
height of the wind turbine is taken 5 meters and the highest is taken 20 meters with an interval of 5 meters. The differencein height is intended to determine the potential of wind energy at each turbine height. Based on the data in table 1. The
higher the wind turbine installation height, the greater the wind speed potential and otherwise. This is directly

68

Rizky IRVANA, Fahreza FALDI, Muhammad Ravi BASYAH and Azhar BRAMANTIO

proportional to the energy that can be obtained. The greater the speed, the greater the energy potential and otherwise. The
power potential that can be generated also calculates how fast the wind blows. The bigger it will produce a large energy
potential that will produce high power.
The height of the turbine can reach more than 20 meters depending on the energy and power requirements to begenerated. The higher the placement of the turbine, the larger the turbine diameter will be. This will result in the noise
generated by the turbine disturbing the surrounding residents because the location of the turbine is quite close to thesettlement. Therefore the height taken is only up to 20 meters. If you want more than 20 meters, the location of the turbine
must be far from residential areas to avoid noise. The diameter of the propeller used in this study is uniform in size,
namely 4 meters for each height. The diameter of the propeller also affects the potential energy that can be generated andthe potential power that can be generated. the larger the diameter, the greater the energy and power potential. The diameterof the propeller depends on the turbine catalog that we will choose and use.

5. Conclusion
The potential of wind energy that can be obtained depends on the diameter of the turbine, wind speed, and the heightof the turbine. The larger the diameter, the greater the wind speed, and the higher the turbine height, the greater the
potential value of wind energy and the power that can be generated. Electrical data is needed in the area that will beselected for the construction of a wind power plant in order to estimate the number of turbines, the height of the turbines,
and the diameter of the turbines used to meet the electricity needs in that area. With the wind power electricity generator,
it can increase the electricity capacity in the Thousand Islands area. It is necessary to vary the size of the diameter of theblade to optimize its output.

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