IEA Release Monthly Electricity Statistics for 47 countries

15 Dec IEA Release Monthly Electricity Statistics for 47 countries

(Oilandgaspress) In September 2025, total net electricity generation in the OECD reached 906.0 TWh. Of this total, 438.5 TWh (48.4%) was produced from fossil fuels, 319.1 TWh (35.2%) from renewable sources and 144.4 TWh (15.9%) from nuclear power. On a year-to-date basis, total net electricity production increased by 2.0% during the first nine months of 2025.

Electricity generation from fossil fuels in the OECD remained unchanged year-on-year in September 2025. Natural gas accounted for 30.5% of total electricity generation, coal for 16.1% and oil for 1.2%. Power generation from natural gas decreased by 1.5% y-o-y (-4.3 TWh), while generation from coal increased by 2.8% y-o-y (4.0 TWh). The decline in power generation from gas was mainly in OECD Asia Oceania (-10.8% y-o-y, -4.7 TWh), and OECD Americas (-0.4% y-o-y, -0.7 TWh), while it increased in OECD Europe (2.8% y-o-y, 1.1 TWh). Coal-fired electricity generation grew in OECD Asia Oceania (6.6% y-o-y, 3.2 TWh) and OECD Americas (6.1% y-o-y, 3.8 TWh), but dropped in OECD Europe (-10.2% y-o-y, -3.1 TWh). On a year-to-date basis, electricity generation from natural gas has fallen 1.0% (-24.7 TWh) whereas coal increased by 4.3% (+54.6 TWh) across the OECD.

Electricity generation from renewable sources in the OECD increased by 5.9% year-on-year (+17.9 TWh) in September 2025. The output from solar generation continues to increase (+23.5% y-o-y, +18.8 TWh). This trend was mainly driven by OECD Americas (34.4% y-o-y, 10.6 TWh), followed by OECD Europe (21.1% y-o-y, 6.8 TWh) and OECD Asia Oceania (8.2% y-o-y, 1.4 TWh). Wind generation increased year-on-year (+3.2% y-o-y, +2.6 TWh) while hydro declined by 4.0% (-4.4 TWH) in the OECD.

Nuclear power generation in the OECD remained broadly stable in September 2025 with a slight decline of 0.2% year-on-year (-0.2 TWh). Nuclear power production fell in OECD Asia Oceania (-2.7% y-o-y, -0.6 TWh) and in OECD Europe (-3.1% y-o-y, -1.6 TWh) and increased in the OECD Americas (2.8% y-o-y, 1.9 TWh). The highest increase on a year-to-date basis across all OECD regions was in Japan ( +13.5%, +8.5 TWh), while the largest decrease occurred in Belgium (-22.6%, 5.1 TWh).

In September, Chile recorded a 19.4% drop (-388 GWh) in electricity generation from hydro. The country has seen lower hydro generation since the start of the year, with a 20.3% decline (-3,651 GWh) on a year-to-date basis. Over the same nine-month period, coal-fired power generation increased by 10.4% (+1,075 GWh), while power generation from natural gas remained relatively stable, showing a slight decrease of 0.7% (-79 GWh) year-to-date.

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