Thailand Hydro Power: Generation, Share and Trend
Thailand generated 7.83 TWh of electricity from hydro in 2025, 3.9% of its total, according to Ember. That made it the 58th largest hydro power producer in 2025 of the 153 countries with Ember data, comparing each country's latest year. Hydro supplied 14.0% of the world's electricity in 2025. These are annual statistics for 2025, with monthly figures through May 2026; they are compiled from national sources and are not real time.
Key Facts
- Thailand generated 7.83 TWh of electricity from hydro in 2025.
- Hydro supplied 3.9% of Thailand's electricity in 2025.
- Thailand was the 58th largest hydro power producer in 2025 among the 153 countries with Ember data, comparing each country's latest year.
- Thailand's hydro generation in 2025 was 67% higher than in 2020, when it was 4.68 TWh.
- Thailand's hydro generation in 2025 was 102% higher than in 2015, when it was 3.88 TWh.
- Thailand's hydro generation peaked at 8.43 TWh in 2012.
- Thailand's hydro share in 2025 was below the world share of 14.0%.
- Thailand had 3.13 GW of hydro generating capacity in 2025.
Key Figures, 2025
| Measure | Value | As of / source |
|---|---|---|
| Hydro generation | 7.83 TWh | 2025 · Ember |
| Share of Thailand's electricity | 3.9% | 2025 · Ember |
| World share of hydro | 14.0% | 2025 · Ember |
| Rank by hydro generation (each country's latest year) | 58 of 153 | 2025 · Ember |
| Hydro capacity | 3.13 GW | 2025 · Ember |
Hydro Generation Year by Year
Ember annual statistics, 1985 to 2025Annual statistics through 2025, GWh
| Year | Hydro |
|---|---|
| 1985 | 3.69 TWh |
| 1986 | 5.53 TWh |
| 1987 | 4.06 TWh |
| 1988 | 3.72 TWh |
| 1989 | 5.51 TWh |
| 1990 | 4.90 TWh |
| 1991 | 4.50 TWh |
| 1992 | 4.16 TWh |
| 1993 | 3.61 TWh |
| 1994 | 4.40 TWh |
| 1995 | 6.59 TWh |
| 1996 | 7.22 TWh |
| 1997 | 7.08 TWh |
| 1998 | 5.09 TWh |
| 1999 | 3.41 TWh |
| 2000 | 5.89 TWh |
| 2001 | 6.17 TWh |
| 2002 | 7.37 TWh |
| 2003 | 7.21 TWh |
| 2004 | 5.90 TWh |
| 2005 | 5.67 TWh |
| 2006 | 7.95 TWh |
| 2007 | 7.96 TWh |
| 2008 | 6.95 TWh |
| 2009 | 6.97 TWh |
| 2010 | 5.35 TWh |
| 2011 | 7.94 TWh |
| 2012 | 8.43 TWh |
| 2013 | 5.41 TWh |
| 2014 | 5.16 TWh |
| 2015 | 3.88 TWh |
| 2016 | 3.65 TWh |
| 2017 | 4.83 TWh |
| 2018 | 7.78 TWh |
| 2019 | 6.45 TWh |
| 2020 | 4.68 TWh |
| 2021 | 4.68 TWh |
| 2022 | 6.79 TWh |
| 2023 | 6.76 TWh |
| 2024 | 6.61 TWh |
| 2025 | 7.83 TWh |
Annual statistics through 2025, % of generation
| Year | Thailand | World |
|---|---|---|
| 1985 | 16.0% | n/a |
| 1986 | 22.4% | n/a |
| 1987 | 14.2% | n/a |
| 1988 | 11.5% | n/a |
| 1989 | 14.8% | n/a |
| 1990 | 11.1% | n/a |
| 1991 | 9.0% | n/a |
| 1992 | 7.3% | n/a |
| 1993 | 5.7% | n/a |
| 1994 | 6.2% | n/a |
| 1995 | 8.3% | n/a |
| 1996 | 8.3% | n/a |
| 1997 | 7.6% | n/a |
| 1998 | 5.7% | n/a |
| 1999 | 3.8% | n/a |
| 2000 | 6.2% | 17.2% |
| 2001 | 6.1% | 16.5% |
| 2002 | 6.8% | 16.3% |
| 2003 | 6.2% | 15.7% |
| 2004 | 4.8% | 16.1% |
| 2005 | 4.4% | 16.1% |
| 2006 | 5.8% | 16.0% |
| 2007 | 5.6% | 15.5% |
| 2008 | 4.8% | 16.1% |
| 2009 | 4.8% | 16.3% |
| 2010 | 3.4% | 16.1% |
| 2011 | 5.2% | 15.9% |
| 2012 | 5.0% | 16.3% |
| 2013 | 3.2% | 16.4% |
| 2014 | 3.0% | 16.3% |
| 2015 | 2.1% | 16.2% |
| 2016 | 2.0% | 16.3% |
| 2017 | 2.6% | 16.0% |
| 2018 | 4.2% | 15.8% |
| 2019 | 3.3% | 15.8% |
| 2020 | 2.5% | 16.3% |
| 2021 | 2.5% | 15.2% |
| 2022 | 3.6% | 15.0% |
| 2023 | 3.3% | 14.3% |
| 2024 | 3.0% | 14.4% |
| 2025 | 3.9% | 14.0% |
| Year | Generation | Share | World share | Capacity |
|---|---|---|---|---|
| 2025 | 7.83 TWh | 3.9% | 14.0% | 3.13 GW |
| 2024 | 6.61 TWh | 3.0% | 14.4% | 3.13 GW |
| 2023 | 6.76 TWh | 3.3% | 14.3% | 3.13 GW |
| 2022 | 6.79 TWh | 3.6% | 15.0% | 3.13 GW |
| 2021 | 4.68 TWh | 2.5% | 15.2% | 3.11 GW |
| 2020 | 4.68 TWh | 2.5% | 16.3% | 3.11 GW |
| 2019 | 6.45 TWh | 3.3% | 15.8% | 3.11 GW |
| 2018 | 7.78 TWh | 4.2% | 15.8% | 3.11 GW |
| 2017 | 4.83 TWh | 2.6% | 16.0% | 3.09 GW |
| 2016 | 3.65 TWh | 2.0% | 16.3% | 3.09 GW |
Full year by year history for Thailand
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.
Hydro Generation Month by Month
Ember monthly statistics through May 2026Monthly statistics through May 2026, TWh
| Month | Hydro |
|---|---|
| 2024-06 | 490 GWh |
| 2024-07 | 410 GWh |
| 2024-08 | 390 GWh |
| 2024-09 | 410 GWh |
| 2024-10 | 300 GWh |
| 2024-11 | 420 GWh |
| 2024-12 | 750 GWh |
| 2025-01 | 790 GWh |
| 2025-02 | 730 GWh |
| 2025-03 | 700 GWh |
| 2025-04 | 660 GWh |
| 2025-05 | 630 GWh |
| 2025-06 | 500 GWh |
| 2025-07 | 450 GWh |
| 2025-08 | 700 GWh |
| 2025-09 | 490 GWh |
| 2025-10 | 570 GWh |
| 2025-11 | 650 GWh |
| 2025-12 | 760 GWh |
| 2026-01 | 920 GWh |
| 2026-02 | 900 GWh |
| 2026-03 | 1.15 TWh |
| 2026-04 | 960 GWh |
| 2026-05 | 750 GWh |
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of May 2026. Monthly figures for Thailand can differ slightly from the annual totals.