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Built 2026-09-19 (19 September 2026)

Slovenia Solar Power: Generation, Share and Trend

Slovenia generated 1.50 TWh of electricity from solar in 2025, 10.2% of its total, according to Ember. That made it the 62nd largest solar power producer in 2025 of the 180 countries with Ember data, comparing each country's latest year. Solar supplied 8.8% of the world's electricity in 2025. These are annual statistics for 2025, with monthly figures through August 2026; they are compiled from national sources and are not real time.

Key Facts

  • Slovenia generated 1.50 TWh of electricity from solar in 2025.
  • Solar supplied 10.2% of Slovenia's electricity in 2025.
  • Slovenia was the 62nd largest solar power producer in 2025 among the 180 countries with Ember data, comparing each country's latest year.
  • Slovenia's solar generation in 2025 was 305% higher than in 2020, when it was 370 GWh.
  • Slovenia's solar generation in 2025 was 456% higher than in 2015, when it was 270 GWh.
  • 2025 was Slovenia's highest year for solar generation in Ember's records, which start in 1990.
  • Slovenia's solar share in 2025 was above the world share of 8.8%.
  • Slovenia had 1.57 GW of solar generating capacity in 2025.

Key Figures, 2025

MeasureValueAs of / source
Solar generation1.50 TWh2025 · Ember
Share of Slovenia's electricity10.2%2025 · Ember
World share of solar8.8%2025 · Ember
Rank by solar generation (each country's latest year)62 of 1802025 · Ember
Solar capacity1.57 GW2025 · Ember

Solar Generation Year by Year

Ember annual statistics, 1990 to 2025
Slovenia solar electricity generation, 1990 to 2025 Slovenia's electricity generation from solar each year from 1990 to 2025, in GWh. It was 1.50 TWh in 2025. 0 375 750 1,125 1,500 19901995200020052010201520202025
Slovenia's electricity generation from solar each year from 1990 to 2025, in GWh. It was 1.50 TWh in 2025.
Annual statistics through 2025, GWh
Slovenia solar electricity generation, 1990 to 2025
YearSolar
19900 TWh
19910 TWh
19920 TWh
19930 TWh
19940 TWh
19950 TWh
19960 TWh
19970 TWh
19980 TWh
19990 TWh
20000 TWh
20010 TWh
20020 TWh
20030 TWh
20040 TWh
20050 TWh
20060 TWh
20070 TWh
20080 TWh
20090 TWh
201010.0 GWh
201170.0 GWh
2012160 GWh
2013220 GWh
2014260 GWh
2015270 GWh
2016270 GWh
2017280 GWh
2018250 GWh
2019300 GWh
2020370 GWh
2021450 GWh
2022650 GWh
2023980 GWh
20241.27 TWh
20251.50 TWh
Share of Slovenia's electricity from solar and the world share, 1990 to 2025 The share of Slovenia's electricity generated from solar, 1990 to 2025, compared with the world share. In 2025 it was 10.2%, against 8.8% worldwide. 0 3 6 9 12 19901995200020052010201520202025
The share of Slovenia's electricity generated from solar, 1990 to 2025, compared with the world share. In 2025 it was 10.2%, against 8.8% worldwide.
Annual statistics through 2025, % of generation
Share of Slovenia's electricity from solar and the world share, 1990 to 2025
YearSloveniaWorld
19900.0%n/a
19910.0%n/a
19920.0%n/a
19930.0%n/a
19940.0%n/a
19950.0%n/a
19960.0%n/a
19970.0%n/a
19980.0%n/a
19990.0%n/a
20000.0%0.0%
20010.0%0.0%
20020.0%0.0%
20030.0%0.0%
20040.0%0.0%
20050.0%0.0%
20060.0%0.0%
20070.0%0.0%
20080.0%0.1%
20090.0%0.1%
20100.1%0.2%
20110.4%0.3%
20121.0%0.4%
20131.4%0.6%
20141.5%0.8%
20151.8%1.1%
20161.7%1.3%
20171.7%1.8%
20181.6%2.2%
20191.9%2.6%
20202.2%3.2%
20212.9%3.7%
20224.9%4.6%
20236.3%5.6%
20247.6%7.0%
202510.2%8.8%
YearGenerationShareWorld shareCapacity
2025 1.50 TWh 10.2% 8.8% 1.57 GW
2024 1.27 TWh 7.6% 7.0% 1.42 GW
2023 980 GWh 6.3% 5.6% 1.03 GW
2022 650 GWh 4.9% 4.6% 630 MW
2021 450 GWh 2.9% 3.7% 460 MW
2020 370 GWh 2.2% 3.2% 370 MW
2019 300 GWh 1.9% 2.6% 280 MW
2018 250 GWh 1.6% 2.2% 250 MW
2017 280 GWh 1.7% 1.8% 250 MW
2016 270 GWh 1.7% 1.3% 230 MW

Full year by year history for Slovenia

Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2025. World shares are Ember's World totals; ranks compare each country's latest year, which can differ between countries.

Solar Generation Month by Month

Ember monthly statistics through August 2026
Slovenia monthly solar electricity generation, September 2024 to August 2026 Slovenia generated 230 GWh of electricity from solar in August 2026, against 120 GWh in August 2025. 0.00 0.06 0.13 0.19 0.25 2024-092025-032025-092026-03
Slovenia generated 230 GWh of electricity from solar in August 2026, against 120 GWh in August 2025.
Monthly statistics through August 2026, TWh
Slovenia monthly solar electricity generation, September 2024 to August 2026
MonthSolar
2024-09100 GWh
2024-1060.0 GWh
2024-1140.0 GWh
2024-1230.0 GWh
2025-0130.0 GWh
2025-0240.0 GWh
2025-03100 GWh
2025-04140 GWh
2025-05170 GWh
2025-06220 GWh
2025-07180 GWh
2025-08120 GWh
2025-09140 GWh
2025-10110 GWh
2025-1160.0 GWh
2025-1240.0 GWh
2026-0130.0 GWh
2026-0260.0 GWh
2026-03140 GWh
2026-04170 GWh
2026-05210 GWh
2026-06230 GWh
2026-07240 GWh
2026-08230 GWh

Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of August 2026. Monthly figures for Slovenia can differ slightly from the annual totals.