Japan Electricity Generation by Source
Monthly electricity generated by power stations of electricity business operators in Japan by source: hydro, thermal (with biomass and waste shown separately as well), nuclear, wind, solar, geothermal and other, in MWh (thousand kWh).
| Indicator | 05-2026 | 04-2026 | 03-2026 | 02-2026 | 01-2026 | 12-2025 | 11-2025 | 10-2025 | 09-2025 | 08-2025 | 07-2025 | 06-2025 | 05-2025 | 04-2025 | 03-2025 | 02-2025 | 01-2025 | 12-2024 | 11-2024 | 10-2024 | 09-2024 | 08-2024 | 07-2024 | 06-2024 | 05-2024 | 04-2024 | 03-2024 | 02-2024 | 01-2024 | 12-2023 | 11-2023 | 10-2023 | 09-2023 | 08-2023 | 07-2023 | 06-2023 | 05-2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total electricity generation5 | 57,301,714.22 | 57,033,961.29 | 67,411,490.22 | 69,787,481.69 | 81,636,846.58 | 74,367,475.32 | 62,707,094.53 | 63,651,304.21 | 72,237,237.21 | 79,051,340.26 | 79,792,883.85 | 64,931,068.96 | 57,413,650.75 | 58,089,947.29 | 69,986,447.9 | 74,349,491.56 | 79,720,900.72 | 75,144,693.05 | 62,706,404.48 | 64,032,935.28 | 73,434,979.88 | 80,051,362.27 | 79,749,894.19 | 61,005,781.66 | 57,366,679.71 | 57,786,008.57 | 72,119,047.15 | 72,080,393.57 | 77,687,824.77 | 74,700,155.26 | 63,337,083.28 | 60,000,210.51 | 72,634,863.67 | 79,721,480.7 | 76,549,017.4 | 62,920,113.91 | 57,588,707.81 | |
| Hydropower | 8,778,519 | 8,620,524.25 | 5,646,764.8 | 4,528,987.3 | 5,157,027.07 | 5,125,574.59 | 4,593,390.11 | 5,273,128.8 | 6,744,418.03 | 7,408,825.27 | 7,742,613.87 | 9,300,371 | 9,920,299.3 | 8,253,394.2 | 6,227,443.3 | 4,189,276.9 | 4,979,920 | 5,200,778.8 | 5,467,348.8 | 5,763,232.7 | 6,762,241.3 | 6,940,360.4 | 9,732,361.28 | 8,000,781.5 | 8,784,878.3 | 9,689,197.5 | 7,224,124.17 | 6,009,095.54 | 5,558,381.19 | 5,513,320.46 | 4,386,778.71 | 4,602,452.38 | 5,519,057.94 | 7,389,155.68 | 8,885,622.41 | 8,998,987.51 | 9,698,618.37 | |
| Thermal power2 | 36,896,881.53 | 37,506,138.76 | 50,775,511.2 | 55,261,196.44 | 63,971,103.3 | 57,543,165.93 | 47,523,637.28 | 48,316,015.23 | 55,054,762.01 | 60,620,867.7 | 60,090,043.91 | 44,318,626.65 | 36,118,428.45 | 38,705,791.2 | 51,750,654.67 | 59,058,332.28 | 63,506,171.07 | 58,760,113.32 | 47,696,828.05 | 48,468,859.2 | 56,433,961.24 | 63,273,899.86 | 59,644,477.27 | 42,531,215.84 | 37,311,283.76 | 38,225,293.75 | 54,644,790.87 | 56,714,899.28 | 62,850,599.9 | 60,404,231.63 | 49,818,080.11 | 45,596,058.49 | 57,879,510.64 | 61,317,986.5 | 57,611,065.81 | 44,642,885.81 | 38,336,334.7 | |
| of which biomass (also counted in thermal) | 2,481,626.45 | 2,679,470.45 | 3,197,649.25 | 2,906,207.87 | 3,215,450.77 | 3,235,876.99 | 2,782,591.85 | 2,972,567.62 | 3,068,088.42 | 3,049,081.7 | 2,987,334.6 | 2,595,227.4 | 2,613,726.05 | 2,619,552.93 | 2,815,211.05 | 2,600,102.86 | 2,908,444.99 | 2,813,772.2 | 2,456,741.16 | 2,437,506.82 | 2,595,976.4 | 2,565,908.22 | 2,596,983.5 | 2,203,257.91 | 2,150,258.39 | 2,175,175.2 | 2,452,613.19 | 2,297,917.96 | 2,808,668.18 | 2,569,613.09 | 2,080,527.05 | 2,481,239.92 | 2,483,817.57 | 2,577,224.92 | 2,540,541.29 | 2,162,292.33 | 2,110,620.52 | |
| of which waste (also counted in thermal) | 362,378 | 320,145 | 367,785.62 | 293,031.37 | 349,499.16 | 391,722.62 | 341,021.73 | 320,248.4 | 364,198.08 | 353,280.24 | 343,352.91 | 318,949.59 | 342,639.81 | 327,542.84 | 373,474.8 | 282,370 | 373,240.62 | 396,219.46 | 307,974.09 | 286,968.64 | 324,783.56 | 347,970.26 | 327,185.72 | 265,198.8 | 286,561.46 | 324,121.26 | 336,569.59 | 285,081.83 | 343,559.06 | 356,264.16 | 258,370.82 | 299,587.27 | 317,724.5 | 370,936.52 | 341,358.51 | 317,399.17 | 344,086.21 | |
| Nuclear power | 7,241,271 | 7,350,549 | 7,246,482 | 6,881,684 | 9,136,985 | 8,669,135 | 7,589,238 | 7,323,591 | 7,339,279 | 7,416,687 | 8,025,716 | 7,778,090 | 7,777,367 | 7,435,798 | 8,488,468 | 7,865,936 | 8,355,419 | 8,109,335 | 6,863,065 | 7,158,351 | 7,213,394 | 6,579,622 | 6,964,686 | 7,257,787 | 7,770,762 | 6,718,099 | 6,960,940.59 | 6,739,086.56 | 6,570,474.49 | 6,270,260.32 | 6,515,566.64 | 6,990,644.27 | 6,692,990.07 | 7,810,139.88 | 6,855,882.81 | 6,464,107.3 | 6,413,925 | |
| New energy (wind, solar, geothermal, batteries)4 | 4,369,074.69 | 3,539,035.28 | 3,725,913.22 | 3,102,656.95 | 3,359,736.21 | 3,013,665.8 | 2,986,626.14 | 2,724,933.18 | 3,082,533.17 | 3,588,137.29 | 3,921,786.07 | 3,527,106.31 | 3,547,580 | 3,646,254.89 | 3,485,376.93 | 3,220,353.38 | 2,838,134.65 | 3,042,316.93 | 2,658,823.63 | 2,624,757.39 | 3,009,340.34 | 3,242,372 | 3,394,583.64 | 3,204,705.32 | 3,488,279.65 | 3,137,011.32 | 3,271,445.52 | 2,602,807.18 | 2,697,467.2 | 2,495,596.85 | 2,599,268.83 | 2,792,125.37 | 2,524,686.01 | 3,188,507.64 | 3,182,936.36 | 2,801,693.29 | 3,123,471.74 | |
| Wind | 1,253,561 | 973,156 | 955,877.81 | 1,067,893.27 | 1,439,946.86 | 1,296,170.98 | 1,068,961.28 | 692,494.46 | 563,254.59 | 462,671.31 | 524,316.93 | 640,815.21 | 807,684.69 | 920,383.46 | 1,088,724.97 | 1,226,926.98 | 997,682.49 | 1,318,335.44 | 911,642.9 | 711,287.36 | 502,700.24 | 411,013.39 | 637,229.33 | 521,000.61 | 784,022.07 | 667,604.69 | 911,329.45 | 847,172.1 | 1,035,171.79 | 950,051.28 | 885,189.44 | 609,116 | 355,613.53 | 509,814.76 | 476,342.24 | 467,594 | 550,909.8 | |
| Solar | 2,785,222.36 | 2,354,558.28 | 2,553,102.33 | 1,836,492.73 | 1,696,285.25 | 1,496,884.66 | 1,739,950.17 | 1,871,212.84 | 2,364,628.89 | 2,945,357.44 | 3,225,102.39 | 2,715,964.19 | 2,542,129.94 | 2,519,489.19 | 2,183,668.31 | 1,801,553.5 | 1,630,274.31 | 1,506,059.94 | 1,570,354.73 | 1,741,801.03 | 2,340,922.11 | 2,669,805.61 | 2,577,027.31 | 2,511,647.71 | 2,526,580.58 | 2,276,373.63 | 2,154,539.07 | 1,567,033.83 | 1,462,440.35 | 1,344,905.01 | 1,547,246.05 | 2,007,212.94 | 2,012,989.47 | 2,506,703.88 | 2,536,194.13 | 2,168,564.3 | 2,389,339.93 | |
| Geothermal | 182,702.33 | 189,322 | 200,416 | 180,411 | 200,254 | 194,431 | 160,149 | 142,123 | 135,904 | 160,920 | 153,533 | 153,894 | 182,069 | 190,829 | 196,235 | 184,374 | 200,908 | 202,240 | 167,886 | 162,060 | 157,767 | 153,192 | 172,098 | 162,616 | 167,755 | 183,651 | 197,715 | 185,016 | 195,561 | 194,550 | 161,405 | 168,961 | 148,892 | 164,572 | 163,373 | 157,014 | 174,436 | |
| Battery storage discharge | 147,589 | 21,999 | 16,517.07 | 17,859.96 | 23,250.09 | 26,179.16 | 17,565.69 | 19,102.88 | 18,745.69 | 19,188.54 | 18,833.74 | 16,432.92 | 15,696.37 | 15,553.25 | 16,748.65 | 7,498.9 | 9,269.85 | 15,681.55 | 8,940 | 9,609 | 7,951 | 8,361 | 8,229 | 9,441 | 9,922 | 9,382 | 7,862 | 3,585.26 | 4,294.05 | 6,090.56 | 5,428.33 | 6,835.43 | 7,191 | 7,417 | 7,027 | 8,521 | 8,786 | |
| Other generation | 15,968 | 17,714 | 16,819 | 12,957 | 11,995 | 15,934 | 14,203 | 13,636 | 16,245 | 16,823 | 12,724 | 6,875 | 49,976 | 48,709 | 34,505 | 15,593 | 41,256 | 32,149 | 20,339 | 17,735 | 16,043 | 15,108 | 13,786 | 11,292 | 11,476 | 16,407 | 17,746 | 14,505 | 10,902 | 16,746 | 17,389 | 18,930 | 18,619 | 15,691 | 13,510 | 12,440 | 16,358 |
Latest reading
Total electricity generation stood at 57,301,714.22 MWh in May 2026. That is +0.5% from Apr 2026 and −0.2% from a year earlier. The series on this page is monthly and runs from Apr 2016 to May 2026.
- Latest
- 57,301,714.22 MWh
- May 2026
- vs previous period
- +0.5%
- Apr 2026
- vs a year earlier
- −0.2%
About this data
Monthly electricity generated by power stations of electricity business operators in Japan by source: hydro, thermal (with biomass and waste shown separately as well), nuclear, wind, solar, geothermal and other, in MWh (thousand kWh). Monthly data since April 2016, when the survey was reorganised after full liberalisation of electricity retail. Source: Agency for Natural Resources and Energy (ANRE), Electric Power Survey Statistics.
