Now that President Joe Biden has returned the United States to the Paris Agreement on climate change, and with the surging costs of fossil fuels, there is renewed interest in renewable energy sources in America. That is reflected by the increase in solar power in the U.S. and other nations.
To identify the countries with the fastest-growing solar sectors, 24/7 Wall St. looked at the solar-generation growth rate from 2009 to 2019 from the British Petroleum “Statistical Review of World Energy” report. Generation of electricity is measured in terawatt (1 trillion watts) hours. All solar data came from the BP report. Population data for the 79 countries considered came from the World Bank.
In the report’s introduction, BP CEO Bernard Looney said, “Remarkably, wind and solar capacity increased by a colossal 238 GW [in 2020] – 50% larger than any previous expansion. Likewise, the share of wind and solar generation in the global power mix recorded its largest ever increase.” He added that carbon emissions from energy use fell by more than 6% in 2020, the largest decline since 1945.
Worldwide solar electricity generation rose by a record 20%, and solar capacity expanded by 127 gigawatts, according to the BP report. While solar power generation is generally increasing and carbon dioxide emissions are generally declining, this is not true in all countries. These are the 25 countries increasing emissions the fastest.
In the U.S., solar power capacity has climbed to 97.2 gigawatts in 2021 from just 0.34 GW in 2008, according to the U.S. Office of Energy Efficiency and Renewable Energy. Currently, 3% of U.S. electricity is derived from solar energy in the form of solar photovoltaics and concentrating solar-thermal power. Since 2014, the average cost of solar PV panels has slid about 70%. (Another renewable energy source is wind. These are U.S. wind farms generating the most electricity.)
The U.S., which is 34th on the list in terms of annual solar power growth from 2009 to 2019, was second in the world in solar generation in 2019 and 2020. China, 12th on the list, was first in solar generation in the same two years.
Eight countries on our list have solar-power growth rate per year from 2009 to 2019 of more than 100%. South America landed just two countries on the list. However, those two are among the top three in solar power growth rate. Nearly half of the 50 nations on our list are from Europe, and 16 are from Asia.
Click here to see the countries leading the way in solar power
Click here to see our detailed methodology
Source: querbeet / iStock via Getty Images
50. Luxembourg
> Solar power growth rate per year 2009-19: 20.4%
> Solar power growth rate, 2019-20: 57.9% – #15 highest out of 79 countries
> Solar generation, 2009: 0.02 terawatt hours – #24 largest
> Solar generation, 2019: 0.13 terawatt hours – #61 largest
> Solar generation, 2020: 0.21 terawatt hours – #58 largest
> Population: 630,419 – #78 largest
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Source: bluejayphoto / iStock via Getty Images
49. Germany
> Solar power growth rate per year 2009-19: 21.6%
> Solar power growth rate, 2019-20: 8.8% – #46 highest out of 79 countries
> Solar generation, 2009: 6.58 terawatt hours – #1 largest
> Solar generation, 2019: 46.39 terawatt hours – #4 largest
> Solar generation, 2020: 50.60 terawatt hours – #5 largest
> Population: 83,160,871 – #16 largest
24/7 Wall St.
Source: SeanPavonePhoto / iStock via Getty Images
48. Portugal
> Solar power growth rate per year 2009-19: 23.7%
> Solar power growth rate, 2019-20: 25.9% – #28 highest out of 79 countries
> Solar generation, 2009: 0.16 terawatt hours – #11 largest
> Solar generation, 2019: 1.34 terawatt hours – #36 largest
> Solar generation, 2020: 1.70 terawatt hours – #35 largest
> Population: 10,297,081 – #49 largest
Source: Ekely / iStock via Getty Images
47. Norway
> Solar power growth rate per year 2009-19: 30.1%
> Solar power growth rate, 2019-20: 26.1% – #27 highest out of 79 countries
> Solar generation, 2009: 7,700 megawatt hours – #27 largest
> Solar generation, 2019: 0.11 terawatt hours – #64 largest
> Solar generation, 2020: 0.14 terawatt hours – #65 largest
> Population: 5,379,475 – #64 largest
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Source: nicolasdecorte / iStock via Getty Images
46. Bangladesh
> Solar power growth rate per year 2009-19: 30.1%
> Solar power growth rate, 2019-20: 17.9% – #36 highest out of 79 countries
> Solar generation, 2009: 0.03 terawatt hours – #21 largest
> Solar generation, 2019: 0.35 terawatt hours – #51 largest
> Solar generation, 2020: 0.41 terawatt hours – #50 largest
> Population: 164,689,383 – #7 largest
Source: SeanPavonePhoto / iStock via Getty Images
45. South Korea
> Solar power growth rate per year 2009-19: 36.8%
> Solar power growth rate, 2019-20: 27.1% – #25 highest out of 79 countries
> Solar generation, 2009: 0.57 terawatt hours – #6 largest
> Solar generation, 2019: 13 terawatt hours – #9 largest
> Solar generation, 2020: 16.57 terawatt hours – #9 largest
> Population: 51,836,239 – #22 largest
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Source: tawatchaiprakobkit / iStock via Getty Images
44. Japan
> Solar power growth rate per year 2009-19: 37.3%
> Solar power growth rate, 2019-20: 14.4% – #39 highest out of 79 countries
> Solar generation, 2009: 3.05 terawatt hours – #3 largest
> Solar generation, 2019: 72.26 terawatt hours – #3 largest
> Solar generation, 2020: 82.92 terawatt hours – #3 largest
> Population: 125,836,021 – #10 largest
24/7 Wall St.
Source: narvikk / E+ via Getty Images
43. Belgium
> Solar power growth rate per year 2009-19: 38.3%
> Solar power growth rate, 2019-20: 20.6% – #32 highest out of 79 countries
> Solar generation, 2009: 0.17 terawatt hours – #10 largest
> Solar generation, 2019: 4.25 terawatt hours – #20 largest
> Solar generation, 2020: 5.14 terawatt hours – #23 largest
> Population: 11,544,241 – #45 largest
Source: DaLiu / iStock via Getty Images
42. Czech Republic
> Solar power growth rate per year 2009-19: 38.4%
> Solar power growth rate, 2019-20: -2.6% – #75 highest out of 79 countries
> Solar generation, 2009: 0.09 terawatt hours – #13 largest
> Solar generation, 2019: 2.29 terawatt hours – #27 largest
> Solar generation, 2020: 2.23 terawatt hours – #31 largest
> Population: 10,697,858 – #47 largest
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Source: scanrail / iStock via Getty Images
41. Finland
> Solar power growth rate per year 2009-19: 42.5%
> Solar power growth rate, 2019-20: 73.7% – #9 highest out of 79 countries
> Solar generation, 2009: 4,300 megawatt hours – #32 largest
> Solar generation, 2019: 0.15 terawatt hours – #59 largest
> Solar generation, 2020: 0.26 terawatt hours – #57 largest
> Population: 5,529,543 – #62 largest
Source: Patryk_Kosmider / iStock via Getty Images
40. Austria
> Solar power growth rate per year 2009-19: 42.6%
> Solar power growth rate, 2019-20: -6.8% – #79 highest out of 79 countries
> Solar generation, 2009: 0.05 terawatt hours – #17 largest
> Solar generation, 2019: 1.70 terawatt hours – #31 largest
> Solar generation, 2020: 1.59 terawatt hours – #37 largest
> Population: 8,916,864 – #55 largest
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Source: RudyBalasko / iStock via Getty Images
39. Italy
> Solar power growth rate per year 2009-19: 42.7%
> Solar power growth rate, 2019-20: 9.3% – #45 highest out of 79 countries
> Solar generation, 2009: 0.68 terawatt hours – #5 largest
> Solar generation, 2019: 23.69 terawatt hours – #6 largest
> Solar generation, 2020: 25.95 terawatt hours – #6 largest
> Population: 59,449,527 – #20 largest
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Source: primeimages / E+ via Getty Images
38. New Zealand
> Solar power growth rate per year 2009-19: 43.0%
> Solar power growth rate, 2019-20: 24.2% – #29 highest out of 79 countries
> Solar generation, 2009: 3,589.86 megawatt hours – #36 largest
> Solar generation, 2019: 0.13 terawatt hours – #62 largest
> Solar generation, 2020: 0.16 terawatt hours – #63 largest
> Population: 5,084,300 – #66 largest
Source: AlbertoLoyo / iStock via Getty Images
37. Canada
> Solar power growth rate per year 2009-19: 44.1%
> Solar power growth rate, 2019-20: 4.6% – #52 highest out of 79 countries
> Solar generation, 2009: 0.11 terawatt hours – #12 largest
> Solar generation, 2019: 4.22 terawatt hours – #21 largest
> Solar generation, 2020: 4.42 terawatt hours – #26 largest
> Population: 38,037,204 – #29 largest
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Source: Sanga Park / iStock via Getty Images
36. Switzerland
> Solar power growth rate per year 2009-19: 44.7%
> Solar power growth rate, 2019-20: 20.1% – #34 highest out of 79 countries
> Solar generation, 2009: 0.05 terawatt hours – #15 largest
> Solar generation, 2019: 2.18 terawatt hours – #28 largest
> Solar generation, 2020: 2.62 terawatt hours – #28 largest
> Population: 8,636,561 – #56 largest
Source: mammuth / iStock via Getty Images
35. Ireland
> Solar power growth rate per year 2009-19: 48.0%
> Solar power growth rate, 2019-20: -0.3% – #61 highest out of 79 countries
> Solar generation, 2009: 424.24 megawatt hours – #45 largest
> Solar generation, 2019: 0.02 terawatt hours – #70 largest
> Solar generation, 2020: 0.02 terawatt hours – #71 largest
> Population: 4,985,674 – #67 largest
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Source: DenisTangneyJr / iStock via Getty Images
34. United States
> Solar power growth rate per year 2009-19: 48.5%
> Solar power growth rate, 2019-20: 23.7% – #30 highest out of 79 countries
> Solar generation, 2009: 2.08 terawatt hours – #4 largest
> Solar generation, 2019: 107.97 terawatt hours – #2 largest
> Solar generation, 2020: 133.97 terawatt hours – #2 largest
> Population: 331,501,080 – #3 largest
24/7 Wall St.
Source: trabantos / iStock via Getty Images
33. Cyprus
> Solar power growth rate per year 2009-19: 49.2%
> Solar power growth rate, 2019-20: 48.4% – #20 highest out of 79 countries
> Solar generation, 2009: 4,000 megawatt hours – #33 largest
> Solar generation, 2019: 0.22 terawatt hours – #54 largest
> Solar generation, 2020: 0.32 terawatt hours – #53 largest
> Population: 1,207,361 – #77 largest
Source: Shakeel Sha / iStock via Getty Images
32. Sri Lanka
> Solar power growth rate per year 2009-19: 49.3%
> Solar power growth rate, 2019-20: 6.9% – #48 highest out of 79 countries
> Solar generation, 2009: 6,787.80 megawatt hours – #29 largest
> Solar generation, 2019: 0.37 terawatt hours – #50 largest
> Solar generation, 2020: 0.40 terawatt hours – #51 largest
> Population: 21,919,000 – #39 largest
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Source: africanpix / iStock via Getty Images
31. Australia
> Solar power growth rate per year 2009-19: 51.3%
> Solar power growth rate, 2019-20: 30.0% – #24 highest out of 79 countries
> Solar generation, 2009: 0.29 terawatt hours – #7 largest
> Solar generation, 2019: 18.30 terawatt hours – #7 largest
> Solar generation, 2020: 23.84 terawatt hours – #7 largest
> Population: 25,693,267 – #37 largest
Source: saiko3p / iStock via Getty Images
30. France
> Solar power growth rate per year 2009-19: 52.4%
> Solar power growth rate, 2019-20: 11.0% – #42 highest out of 79 countries
> Solar generation, 2009: 0.17 terawatt hours – #9 largest
> Solar generation, 2019: 11.75 terawatt hours – #11 largest
> Solar generation, 2020: 13.07 terawatt hours – #10 largest
> Population: 67,379,908 – #18 largest
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Source: kasto80 / iStock via Getty Images
29. Slovenia
> Solar power growth rate per year 2009-19: 54.2%
> Solar power growth rate, 2019-20: -5.3% – #78 highest out of 79 countries
> Solar generation, 2009: 4,000 megawatt hours – #33 largest
> Solar generation, 2019: 0.30 terawatt hours – #52 largest
> Solar generation, 2020: 0.29 terawatt hours – #56 largest
> Population: 2,102,419 – #72 largest
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Source: Grafissimo / E+ via Getty Images
28. Greece
> Solar power growth rate per year 2009-19: 56.6%
> Solar power growth rate, 2019-20: 9.7% – #44 highest out of 79 countries
> Solar generation, 2009: 0.05 terawatt hours – #16 largest
> Solar generation, 2019: 4.43 terawatt hours – #19 largest
> Solar generation, 2020: 4.87 terawatt hours – #24 largest
> Population: 10,700,556 – #46 largest
Source: scanrail / iStock via Getty Images
27. Sweden
> Solar power growth rate per year 2009-19: 57.6%
> Solar power growth rate, 2019-20: 58.9% – #13 highest out of 79 countries
> Solar generation, 2009: 7,000 megawatt hours – #28 largest
> Solar generation, 2019: 0.66 terawatt hours – #45 largest
> Solar generation, 2020: 1.06 terawatt hours – #44 largest
> Population: 10,353,442 – #48 largest
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Source: tawanlubfah / iStock via Getty Images
26. Thailand
> Solar power growth rate per year 2009-19: 58.9%
> Solar power growth rate, 2019-20: -0.3% – #61 highest out of 79 countries
> Solar generation, 2009: 0.04 terawatt hours – #19 largest
> Solar generation, 2019: 4.57 terawatt hours – #18 largest
> Solar generation, 2020: 4.57 terawatt hours – #25 largest
> Population: 69,799,978 – #17 largest
Source: mihaiulia / iStock via Getty Images
25. Netherlands
> Solar power growth rate per year 2009-19: 61.4%
> Solar power growth rate, 2019-20: 50.6% – #19 highest out of 79 countries
> Solar generation, 2009: 0.04 terawatt hours – #18 largest
> Solar generation, 2019: 5.34 terawatt hours – #16 largest
> Solar generation, 2020: 8.06 terawatt hours – #15 largest
> Population: 17,441,500 – #44 largest
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Source: TommL / E+ via Getty Images
24. Singapore
> Solar power growth rate per year 2009-19: 61.7%
> Solar power growth rate, 2019-20: 51.2% – #17 highest out of 79 countries
> Solar generation, 2009: 1,596 megawatt hours – #40 largest
> Solar generation, 2019: 0.19 terawatt hours – #55 largest
> Solar generation, 2020: 0.30 terawatt hours – #55 largest
> Population: 5,685,807 – #61 largest
Source: RudyBalasko / iStock via Getty Images
23. Israel
> Solar power growth rate per year 2009-19: 62.7%
> Solar power growth rate, 2019-20: 75.8% – #8 highest out of 79 countries
> Solar generation, 2009: 0.02 terawatt hours – #22 largest
> Solar generation, 2019: 3.11 terawatt hours – #25 largest
> Solar generation, 2020: 5.49 terawatt hours – #21 largest
> Population: 9,215,100 – #54 largest
Source: spooh / E+ via Getty Images
22. South Africa
> Solar power growth rate per year 2009-19: 70.7%
> Solar power growth rate, 2019-20: 5.3% – #51 highest out of 79 countries
> Solar generation, 2009: 0.02 terawatt hours – #23 largest
> Solar generation, 2019: 4.90 terawatt hours – #17 largest
> Solar generation, 2020: 5.18 terawatt hours – #22 largest
> Population: 59,308,690 – #21 largest
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Source: mammuth / E+ via Getty Images
21. Denmark
> Solar power growth rate per year 2009-19: 74.2%
> Solar power growth rate, 2019-20: 22.3% – #31 highest out of 79 countries
> Solar generation, 2009: 3,750 megawatt hours – #35 largest
> Solar generation, 2019: 0.96 terawatt hours – #40 largest
> Solar generation, 2020: 1.18 terawatt hours – #43 largest
> Population: 5,831,404 – #60 largest
Source: SL_Photography / iStock via Getty Images
20. Mexico
> Solar power growth rate per year 2009-19: 75.2%
> Solar power growth rate, 2019-20: 60.7% – #12 highest out of 79 countries
> Solar generation, 2009: 0.03 terawatt hours – #20 largest
> Solar generation, 2019: 7.37 terawatt hours – #13 largest
> Solar generation, 2020: 11.87 terawatt hours – #12 largest
> Population: 128,932,753 – #9 largest
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Source: HomoCosmicos / iStock via Getty Images
19. Pakistan
> Solar power growth rate per year 2009-19: 77.2%
> Solar power growth rate, 2019-20: 3.1% – #54 highest out of 79 countries
> Solar generation, 2009: 5,328 megawatt hours – #31 largest
> Solar generation, 2019: 1.62 terawatt hours – #32 largest
> Solar generation, 2020: 1.68 terawatt hours – #36 largest
> Population: 220,892,331 – #5 largest
Source: StockByM / iStock via Getty Images
18. Taiwan
> Solar power growth rate per year 2009-19: 83.8%
> Solar power growth rate, 2019-20: 51.2% – #18 highest out of 79 countries
> Solar generation, 2009: 9,112.54 megawatt hours – #26 largest
> Solar generation, 2019: 4.01 terawatt hours – #24 largest
> Solar generation, 2020: 6.09 terawatt hours – #19 largest
> Population: 23,816,775 – #38 largest
Source: Nikolay Pandev / E+ via Getty Images
17. Bulgaria
> Solar power growth rate per year 2009-19: 85.4%
> Solar power growth rate, 2019-20: 3.5% – #53 highest out of 79 countries
> Solar generation, 2009: 3,000 megawatt hours – #38 largest
> Solar generation, 2019: 1.44 terawatt hours – #35 largest
> Solar generation, 2020: 1.50 terawatt hours – #39 largest
> Population: 6,934,015 – #58 largest
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Source: nala_rinaldo / RooM via Getty Images
16. Indonesia
> Solar power growth rate per year 2009-19: 87.6%
> Solar power growth rate, 2019-20: 773.0% – #2 highest out of 79 countries
> Solar generation, 2009: 100 megawatt hours – #48 largest
> Solar generation, 2019: 0.05 terawatt hours – #67 largest
> Solar generation, 2020: 0.47 terawatt hours – #49 largest
> Population: 273,523,621 – #4 largest
Source: hadynyah / E+ via Getty Images
15. India
> Solar power growth rate per year 2009-19: 90.1%
> Solar power growth rate, 2019-20: 26.5% – #26 highest out of 79 countries
> Solar generation, 2009: 0.08 terawatt hours – #14 largest
> Solar generation, 2019: 46.27 terawatt hours – #5 largest
> Solar generation, 2020: 58.68 terawatt hours – #4 largest
> Population: 1,380,004,385 – #2 largest
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Source: Vladislav Zolotov / iStock via Getty Images
14. United Kingdom
> Solar power growth rate per year 2009-19: 91.0%
> Solar power growth rate, 2019-20: -1.2% – #73 highest out of 79 countries
> Solar generation, 2009: 0.02 terawatt hours – #25 largest
> Solar generation, 2019: 12.92 terawatt hours – #10 largest
> Solar generation, 2020: 12.80 terawatt hours – #11 largest
> Population: 67,215,293 – #19 largest
Source: DieterMeyrl / E+ via Getty Images
13. United Arab Emirates
> Solar power growth rate per year 2009-19: 91.3%
> Solar power growth rate, 2019-20: 32.8% – #23 highest out of 79 countries
> Solar generation, 2009: 6,354 megawatt hours – #30 largest
> Solar generation, 2019: 4.17 terawatt hours – #22 largest
> Solar generation, 2020: 5.55 terawatt hours – #20 largest
> Population: 9,890,400 – #51 largest
Source: XIUYUAN YAO / iStock via Getty Images
12. China
> Solar power growth rate per year 2009-19: 95.2%
> Solar power growth rate, 2019-20: 16.2% – #38 highest out of 79 countries
> Solar generation, 2009: 0.28 terawatt hours – #8 largest
> Solar generation, 2019: 224 terawatt hours – #1 largest
> Solar generation, 2020: 261.10 terawatt hours – #1 largest
> Population: 1,410,929,362 – #1 largest
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Source: Givaga / iStock via Getty Images
11. Egypt
> Solar power growth rate per year 2009-19: 96.8%
> Solar power growth rate, 2019-20: 51.3% – #16 highest out of 79 countries
> Solar generation, 2009: 2,200 megawatt hours – #39 largest
> Solar generation, 2019: 1.92 terawatt hours – #29 largest
> Solar generation, 2020: 2.91 terawatt hours – #27 largest
> Population: 102,334,403 – #12 largest
Source: Lukas Bischoff / iStock via Getty Images
10. Iran
> Solar power growth rate per year 2009-19: 98.5%
> Solar power growth rate, 2019-20: 12.5% – #40 highest out of 79 countries
> Solar generation, 2009: 300 megawatt hours – #46 largest
> Solar generation, 2019: 0.28 terawatt hours – #53 largest
> Solar generation, 2020: 0.32 terawatt hours – #54 largest
> Population: 83,992,953 – #15 largest
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Source: Ooriya Ron / iStock via Getty Images
9. Philippines
> Solar power growth rate per year 2009-19: 99.4%
> Solar power growth rate, 2019-20: 9.9% – #43 highest out of 79 countries
> Solar generation, 2009: 1,252 megawatt hours – #41 largest
> Solar generation, 2019: 1.25 terawatt hours – #37 largest
> Solar generation, 2020: 1.37 terawatt hours – #40 largest
> Population: 109,581,085 – #11 largest
Source: Xantana / iStock via Getty Images
8. Estonia
> Solar power growth rate per year 2009-19: 102.6%
> Solar power growth rate, 2019-20: 7.7% – #47 highest out of 79 countries
> Solar generation, 2009: 100 megawatt hours – #48 largest
> Solar generation, 2019: 0.12 terawatt hours – #63 largest
> Solar generation, 2020: 0.13 terawatt hours – #66 largest
> Population: 1,329,479 – #76 largest
Source: PEDRE / E+ via Getty Images
7. Hungary
> Solar power growth rate per year 2009-19: 107.7%
> Solar power growth rate, 2019-20: 58.0% – #14 highest out of 79 countries
> Solar generation, 2009: 1,000 megawatt hours – #43 largest
> Solar generation, 2019: 1.50 terawatt hours – #34 largest
> Solar generation, 2020: 2.37 terawatt hours – #30 largest
> Population: 9,750,149 – #52 largest
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Source: MOHAMED HUSSAIN YOUNIS / iStock via Getty Images
6. Saudi Arabia
> Solar power growth rate per year 2009-19: 110.5%
> Solar power growth rate, 2019-20: -0.3% – #61 highest out of 79 countries
> Solar generation, 2009: 609 megawatt hours – #44 largest
> Solar generation, 2019: 1.04 terawatt hours – #38 largest
> Solar generation, 2020: 1.04 terawatt hours – #45 largest
> Population: 34,813,867 – #32 largest
Source: RossHelen / iStock via Getty Images
5. Romania
> Solar power growth rate per year 2009-19: 111.1%
> Solar power growth rate, 2019-20: -4.5% – #77 highest out of 79 countries
> Solar generation, 2009: 1,010 megawatt hours – #42 largest
> Solar generation, 2019: 1.78 terawatt hours – #30 largest
> Solar generation, 2020: 1.70 terawatt hours – #34 largest
> Population: 19,257,520 – #40 largest
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Source: sorincolac / iStock via Getty Images
4. Croatia
> Solar power growth rate per year 2009-19: 134.6%
> Solar power growth rate, 2019-20: 0.9% – #58 highest out of 79 countries
> Solar generation, 2009: 16.46 megawatt hours – #51 largest
> Solar generation, 2019: 0.08 terawatt hours – #66 largest
> Solar generation, 2020: 0.08 terawatt hours – #68 largest
> Population: 4,047,680 – #69 largest
Source: ivotheeditors / iStock via Getty Images
3. Argentina
> Solar power growth rate per year 2009-19: 152.4%
> Solar power growth rate, 2019-20: 67.6% – #11 highest out of 79 countries
> Solar generation, 2009: 76.08 megawatt hours – #50 largest
> Solar generation, 2019: 0.80 terawatt hours – #41 largest
> Solar generation, 2020: 1.34 terawatt hours – #41 largest
> Population: 45,376,763 – #25 largest
Source: xavierarnau / E+ via Getty Images
2. Morocco
> Solar power growth rate per year 2009-19: 162.7%
> Solar power growth rate, 2019-20: -0.3% – #61 highest out of 79 countries
> Solar generation, 2009: 101.01 megawatt hours – #47 largest
> Solar generation, 2019: 1.58 terawatt hours – #33 largest
> Solar generation, 2020: 1.58 terawatt hours – #38 largest
> Population: 36,910,558 – #31 largest
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Source: AlanFalcony / iStock via Getty Images
1. Ecuador
> Solar power growth rate per year 2009-19: 170.7%
> Solar power growth rate, 2019-20: -0.3% – #72 highest out of 79 countries
> Solar generation, 2009: 7.88 megawatt hours – #52 largest
> Solar generation, 2019: 0.17 terawatt hours – #57 largest
> Solar generation, 2020: 0.17 terawatt hours – #62 largest
> Population: 17,643,060 – #43 largest
Methodology
To identify the countries with the fastest growing solar sectors, 24/7 Wall St. looked at the solar generation growth rate from 2009 – 2019 from the British Petroleum “Statistical Review of World Energy” report. Generation of electricity is measured in terawatt (1 trillion watts) hours.
Solar generation for each country on the list for 2009, 2019, and 2020 also came from the BP report. Solar generation values that are smaller than 0.01 terawatts were converted to megawatt (1 million watts) hours. The population for each country comes from The World Bank World Development Indicators for 2020.
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