UK electricity demand and generation
The British electricity system day by day: demand outturn and generation by fuel from gas, nuclear, wind and imports (Elexon); national and transmission demand, embedded wind and solar and the flow on every interconnector to France, Belgium, the Netherlands, Norway, Denmark and Ireland (NESO); the carbon intensity of each unit generated and the fuel mix behind it (NESO); and total solar PV generation (PV_Live).
| Indicator | 28-09-2026 | 27-09-2026 | 26-09-2026 | 25-09-2026 | 24-09-2026 | 23-09-2026 | 22-09-2026 | 21-09-2026 | 20-09-2026 | 19-09-2026 | 18-09-2026 | 17-09-2026 | 16-09-2026 | 15-09-2026 | 14-09-2026 | 13-09-2026 | 12-09-2026 | 11-09-2026 | 10-09-2026 | 09-09-2026 | 08-09-2026 | 07-09-2026 | 06-09-2026 | 05-09-2026 | 04-09-2026 | 03-09-2026 | 02-09-2026 | 01-09-2026 | 31-08-2026 | 30-08-2026 | 29-08-2026 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Demand and generation by fuel (Elexon)2 | ||||||||||||||||||||||||||||||||
| Initial demand outturn | 20,800.67 | 22,657.02 | 20,837.17 | 24,931.35 | 24,155.81 | 24,554.15 | 25,059.17 | 24,436.06 | 19,737.81 | 20,484.06 | 23,025.77 | 22,452.31 | 24,229.06 | 23,439.67 | 24,842.54 | 23,172.13 | 20,970.6 | 24,245.6 | 24,105.04 | 24,676.85 | 23,995.06 | 23,698.35 | 19,897.92 | 19,977.56 | 23,038.21 | 23,923.96 | 26,042.71 | 23,497.73 | 20,877.38 | 21,257.75 | 23,063.19 | |
| Generation by fuel20 | ||||||||||||||||||||||||||||||||
| Combined cycle gas turbine | 4,117.27 | 8,953.27 | 7,618.23 | 7,617.46 | 12,151.73 | 9,107.98 | 4,483.46 | 3,647.42 | 3,831.73 | 6,652.92 | 4,597.94 | 9,988.54 | 9,417.31 | 7,990.29 | 6,884.02 | 6,639.81 | 5,430.56 | 4,859.15 | 3,511.08 | 3,578.17 | 4,147.63 | 3,484.44 | 9,020.02 | 5,226.31 | 3,062.63 | 3,808 | 4,446.83 | |||||
| Nuclear | 4,011.56 | 4,009.77 | 3,995.83 | 3,834.1 | 3,692.79 | 3,488.02 | 3,334.77 | 3,335.75 | 3,314.27 | 3,314.96 | 3,323.88 | 3,445.29 | 3,732.73 | 3,657.17 | 3,017.48 | 3,518.77 | 3,248.67 | 3,530.31 | 3,919.19 | 4,361.88 | 4,545.83 | 4,937.52 | 4,961.38 | 4,956.71 | 4,949.44 | 4,946.13 | 4,913.94 | |||||
| Wind | 10,775.73 | 6,449.9 | 6,644.73 | 8,176.9 | 2,859.85 | 3,801.71 | 11,389.15 | 14,835.19 | 14,317.92 | 7,870.71 | 11,682.46 | 7,520.88 | 1,864.44 | 6,287.52 | 9,634.08 | 8,234.67 | 13,301.98 | 10,849.08 | 9,660.48 | 8,693.36 | 13,178.08 | 11,880.35 | 7,637.23 | 8,969.98 | 7,876.58 | 4,487.5 | 6,097.79 | |||||
| Biomass | 2,560.23 | 2,954.13 | 2,938.92 | 2,770.88 | 2,971.54 | 3,001.63 | 1,423.29 | 1,590.31 | 2,517.06 | 3,222.52 | 2,695.23 | 2,600.73 | 2,688.08 | 3,131.15 | 3,005.31 | 3,100.21 | 2,601.1 | 2,937.98 | 2,198.79 | 2,386.13 | 2,978.02 | 2,692.79 | 3,142.63 | 2,963.83 | 2,469 | 3,200.42 | 2,971.23 | |||||
| Coal | 0 | 0 | 0 | 2.77 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||
| Hydro (non-pumped storage) | 407.6 | 437.94 | 461.77 | 596.29 | 504.65 | 522.19 | 380.5 | 398.73 | 417.1 | 444.19 | 420.27 | 466.4 | 643.17 | 447.23 | 427.29 | 524.1 | 338.73 | 254.69 | 233.63 | 257.44 | 207.92 | 186.81 | 229.19 | 163.9 | 185.9 | 237.29 | 230.33 | |||||
| Pumped storage | 361.4 | 460.21 | 170.47 | 387.53 | 731.33 | 269.12 | 211.09 | 416.39 | 273.22 | 360 | 413.2 | 454.14 | 449.56 | 437.03 | 97.78 | 638.56 | 254.93 | 463.1 | 560.88 | 844.07 | 234.8 | 606 | 380.15 | 330.36 | 430.25 | 346.67 | 297.89 | |||||
| Open cycle gas turbine | 0.7 | 8.46 | 25.1 | 12.31 | 79.44 | 54.33 | 50.23 | 0.54 | 18.31 | 3.06 | 4.35 | 1.56 | 1.13 | 12.67 | 5.31 | 7.81 | 9.17 | 20.9 | 6.58 | 1.83 | 13.04 | 1.35 | 2.31 | 14.27 | 45 | 50 | 50 | |||||
| Oil | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||
| Other | 647.41 | 917.1 | 890.98 | 829 | 897.52 | 1,016.79 | 666.1 | 792.19 | 779.15 | 747.04 | 795.98 | 811.27 | 633.71 | 800.67 | 718.67 | 729.98 | 768.48 | 979.83 | 824.71 | 781.22 | 781.02 | 891.48 | 772.81 | 964.71 | 816.25 | 668.5 | 641.42 | |||||
| Interconnector — France (IFA) | 425.99 | 629.33 | 577.13 | 543.92 | 723.83 | 795.83 | 386.92 | 415.83 | 567 | 708.42 | 388.46 | 573.63 | 971.96 | 679.33 | 656.54 | 873.43 | 1,745.27 | 1,278.93 | 998 | 1,527.53 | 1,270.78 | 1,447.57 | 1,299.24 | 993.53 | 1,502.71 | 1,782.04 | 1,525.54 | |||||
| Interconnector — France (IFA2) | 560.88 | 689.2 | 818.79 | 744.07 | 701.78 | 782.46 | 753.48 | 646.44 | 726.67 | 799.11 | 713.83 | 762.86 | 924.21 | 822.76 | 719.35 | 881.8 | 801.64 | 663.41 | 661.21 | 769.81 | 557 | 586.53 | 579.5 | 474.79 | 723.71 | 892.79 | 896.75 | |||||
| Interconnector — Netherlands (BritNed) | 634.64 | 822.1 | 895.19 | 844.07 | 491.83 | 683.67 | 531 | 0.17 | 0.29 | 0.13 | 0.25 | 0.17 | 0.13 | 0.17 | 0.13 | 0.21 | 0 | 0 | 0 | 844.69 | 227 | 804.41 | 911.89 | 676.36 | 756.14 | 832.78 | 1,022.63 | |||||
| Interconnector — Belgium (Nemo) | 476.34 | 0 | 0 | 0 | 0 | 50.39 | 446 | 484.74 | 40 | 544.34 | 670.91 | 881.5 | 969.59 | 655.53 | 675.08 | 889.56 | 522.71 | 584.92 | 324.55 | 278.83 | 169.5 | 360.79 | 630.45 | 125.8 | 554.73 | 627.21 | 788.38 | |||||
| Interconnector — Ireland (Moyle) | 0 | 39.06 | 56.31 | 0 | 0 | 24 | 17.33 | 0 | 18 | 53.33 | 33.6 | 12.86 | 10.13 | 10.53 | 25.09 | 8.36 | 0 | 3.8 | 0 | |||||||||||||
| Interconnector — Ireland (East-West) | 0 | 0.58 | 0.36 | 0 | 0 | 0 | 1.71 | 0.8 | 0.21 | 0 | 0.28 | 6 | 8.59 | 0 | 0 | 0 | 58.45 | 31.8 | 13.36 | 0 | 2.35 | 0 | 0 | 0 | ||||||||
| Interconnector — Norway (North Sea Link) | 1,078.38 | 1,400 | 1,243.71 | 1,354.58 | 1,401.88 | 1,400.92 | 1,261.09 | 442.43 | 457.67 | 1,090.21 | 1,183.29 | 1,094.58 | 1,399.38 | 1,397.17 | 1,202.79 | 1,248.25 | 644.97 | 1,193.67 | 1,110.19 | 1,200.15 | 246.34 | 0 | 0 | 0 | 0 | 0 | 0 | |||||
| Interconnector — France (ElecLink) | 417.25 | 741.64 | 774.73 | 717.07 | 728.22 | 829.54 | 850.1 | 747.5 | 927.8 | 743 | 696.64 | 876.5 | 918.88 | 792.61 | 668.68 | 863.32 | 803.17 | 671.23 | 546.88 | 760.52 | 560.5 | 542.43 | 767.69 | 470.85 | 676.08 | 837.5 | 703.91 | |||||
| Interconnector — Denmark (Viking Link) | 1,174.44 | 1,128.67 | 1,275.5 | 1,197.86 | 681.61 | 1,266.46 | 842.63 | 1,018.71 | 916.91 | 791.77 | 942.22 | 1,170.67 | 1,339.47 | 970 | 481.47 | 656.96 | 662.33 | 480.74 | 668.53 | 1,075.91 | 1,008.94 | 1,388.39 | 1,085.54 | 869.17 | 930.13 | 1,375.56 | 1,394.54 | |||||
| Interconnector — Greenlink | 8.06 | 163.33 | 80.33 | 95.2 | 38 | 48 | 47.43 | 0 | 96.43 | 4.83 | 61.25 | 12 | 9 | |||||||||||||||||||
| Demand, embedded generation and interconnectors (NESO)3 | ||||||||||||||||||||||||||||||||
| Demand5 | ||||||||||||||||||||||||||||||||
| National demand | 23,691.71 | 19,897.38 | 19,969.94 | 23,036.9 | 23,919.25 | 26,037.1 | 23,489.27 | 20,871.31 | 21,253.79 | 23,056.17 | ||||||||||||||||||||||
| Transmission system demand | 25,498.06 | 21,898.92 | 23,566.48 | 26,261.15 | 26,714.6 | 28,678.06 | 25,340.98 | 22,608.04 | 23,171.5 | 24,856.44 | ||||||||||||||||||||||
| England and Wales demand | 22,244.81 | 18,745.42 | 18,390.63 | 21,749.15 | 22,174.33 | 23,551.94 | 21,770.25 | 18,883.71 | 18,990.58 | 20,789.15 | ||||||||||||||||||||||
| Pumped storage pumping | 268.54 | 336.67 | 190.25 | 372.77 | 276.1 | 23.38 | 241.88 | 245.38 | 7.56 | 215 | ||||||||||||||||||||||
| Scottish transfer | 3,291.92 | 4,038.98 | 2,376.13 | 3,413.77 | 2,760.19 | 925.42 | 2,945.9 | 1,334.29 | -318.35 | 93.19 | ||||||||||||||||||||||
| Embedded wind and solar4 | ||||||||||||||||||||||||||||||||
| Embedded wind generation | 2,589.63 | 2,361.19 | 1,939.69 | 3,881.25 | 3,022.19 | 1,502.85 | 1,954.46 | 1,687.02 | 847.81 | 1,078.73 | ||||||||||||||||||||||
| Embedded wind capacity | 6,417 | 6,417 | 6,417 | 6,417 | 6,417 | 6,417 | 6,417 | 6,417 | 6,417 | 6,417 | ||||||||||||||||||||||
| Embedded solar generation | 2,357.56 | 3,252.1 | 3,970.92 | 2,035.67 | 2,539.21 | 1,340.63 | 3,381.1 | 3,164.85 | 2,566.96 | 1,544.94 | ||||||||||||||||||||||
| Embedded solar capacity | 23,963 | 23,963 | 23,963 | 23,963 | 23,963 | 23,963 | 23,963 | 23,963 | 23,963 | 23,963 | ||||||||||||||||||||||
| Interconnector flows10 | ||||||||||||||||||||||||||||||||
| IFA (France) | 589.42 | 824 | 630.21 | 133.31 | 640.19 | 814.06 | 793.69 | 1,526.25 | 1,773.13 | 1,426.35 | ||||||||||||||||||||||
| IFA2 (France) | 245.52 | 306.29 | 140.54 | -262.5 | 165.98 | 341.88 | 350.75 | 754.02 | 891.9 | 853.29 | ||||||||||||||||||||||
| ElecLink (France) | 231.9 | 308.15 | 139.67 | -224.58 | 86.29 | 292.88 | 366.42 | 699.77 | 824.73 | 652.33 | ||||||||||||||||||||||
| BritNed (Netherlands) | 0 | -152.65 | 118.81 | -262.69 | 280.79 | 23.04 | 274.92 | 653.75 | 822.23 | 1,022.9 | ||||||||||||||||||||||
| Nemo Link (Belgium) | 84.92 | -156.02 | -322.08 | -490.1 | -59.17 | -6.71 | -159.25 | 489.63 | 654.96 | 793.19 | ||||||||||||||||||||||
| North Sea Link (Norway) | 1,082.56 | 370.88 | -28.27 | 147.17 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||
| Viking Link (Denmark) | 320.17 | 314.69 | 1,043.98 | 468.56 | 810.35 | 268.31 | 905.58 | -233.02 | 1,013.52 | 1,391.67 | ||||||||||||||||||||||
| Moyle (Northern Ireland to Scotland) | -348.88 | -186.92 | -379.33 | -221.02 | -371.21 | -272.27 | -292.1 | -278.5 | -394.69 | -444.75 | ||||||||||||||||||||||
| East-West (Ireland) | -104.04 | -98.1 | -434.96 | -139.42 | -346.94 | -182.35 | -346.83 | -341.96 | -435.79 | -527.79 | ||||||||||||||||||||||
| Greenlink (Ireland) | -417.31 | -205.04 | -491.13 | -274.65 | -501.67 | -412.81 | -482.4 | -346.17 | -505.75 | -513.71 | ||||||||||||||||||||||
| Carbon intensity and generation mix (NESO)2 | ||||||||||||||||||||||||||||||||
| Carbon intensity, daily average | 83.48 | 111.13 | 143.1 | 132.48 | 128.81 | 189.31 | 163.98 | 84.19 | 60.27 | 61.02 | 65.25 | 112.63 | 77.23 | 145.73 | 168.02 | 79.38 | 131.1 | 109.58 | 111.79 | 81.79 | 84.98 | 68.5 | 80.27 | 70.75 | 73.35 | 140.85 | 98.56 | 83.19 | 105.54 | 112.4 | ||
| Share of generation by fuel9 | ||||||||||||||||||||||||||||||||
| Wind | 45.33 | 29.86 | 25.61 | 26.7 | 30.07 | 12.14 | 15.85 | 46.72 | 63.27 | 58.43 | 55.59 | 33.39 | 46.55 | 29.59 | 9.64 | 45.3 | 25.41 | 37.47 | 30.52 | 54.6 | 46.9 | 43.82 | 43.44 | 51.84 | 46.78 | 35.11 | 40.04 | 36.78 | 22.27 | 26.63 | ||
| Gas | 14.95 | 21.57 | 29.26 | 25.29 | 25.14 | 40.6 | 31.94 | 15.9 | 12.85 | 11.6 | 12.01 | 22.18 | 14.38 | 31.92 | 35.3 | 14.63 | 26.74 | 22.24 | 21.8 | 14.31 | 13.24 | 13.51 | 17.44 | 13.17 | 11.14 | 23.96 | 19.56 | 26.92 | 16.91 | 16.19 | ||
| Nuclear | 14.07 | 14.69 | 13.28 | 13.51 | 12.77 | 12.39 | 12.26 | 11.46 | 10.82 | 10.56 | 10.32 | 11.32 | 10.69 | 11.24 | 14.32 | 12.66 | 12.41 | 9.93 | 11.58 | 11.38 | 12.61 | 16.56 | 18.27 | 14.03 | 15.58 | 18.05 | 16.97 | 16.02 | 20.52 | 18.4 | ||
| Solar | 4.44 | 9.39 | 6.83 | 8.49 | 6.4 | 7.21 | 8.34 | 9.19 | 5.35 | 5.96 | 6.14 | 6.2 | 7.23 | 5.91 | 5.65 | 6.24 | 7.58 | 6.64 | 7.5 | 6.79 | 7.22 | 9.74 | 10.59 | 6.05 | 6.89 | 5.6 | 9.29 | 8.36 | 8.24 | 5.6 | ||
| Biomass | 9.16 | 9.36 | 9.78 | 9.93 | 9.24 | 9.96 | 10.56 | 5.2 | 2.45 | 5.06 | 7.76 | 11 | 8.83 | 8.48 | 10.31 | 8.45 | 10.6 | 9.81 | 10.21 | 6.94 | 8.92 | 9.75 | 9.54 | 9.16 | 8.66 | 9.81 | 8.53 | 7.32 | 12.54 | 11.05 | ||
| Hydro | 1.85 | 2.11 | 2.02 | 1.81 | 2.78 | 2.51 | 2.25 | 1.48 | 1.77 | 2.14 | 1.64 | 2.29 | 1.6 | 1.92 | 3.27 | 1.6 | 2.65 | 1.45 | 2.44 | 0.53 | 0.85 | 0.93 | 0 | 0.58 | 1.51 | 0.76 | 0.09 | 0 | 0.3 | 1.29 | ||
| Coal | 0 | 0 | 0 | 0 | 0.01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Interconnector imports | 8.02 | 10.49 | 10.28 | 11.43 | 11.01 | 12.4 | 15.49 | 7.88 | 1.43 | 3.75 | 4.18 | 11.15 | 8.3 | 8.45 | 19.26 | 8.64 | 11.89 | 10.26 | 13.63 | 4.43 | 8.65 | 4.45 | 0.73 | 3.05 | 6.72 | 5.46 | 4.7 | 4.57 | 18.63 | 18.45 | ||
| Other | 2.16 | 2.51 | 2.93 | 2.83 | 2.59 | 2.81 | 3.31 | 2.16 | 2.07 | 2.5 | 2.36 | 2.47 | 2.41 | 2.5 | 2.25 | 2.5 | 2.73 | 2.2 | 2.3 | 1.02 | 1.58 | 1.25 | 0 | 2.11 | 2.73 | 1.24 | 0.8 | 0 | 0.59 | 2.37 | ||
| Solar generation (PV_Live, University of Sheffield)3 | ||||||||||||||||||||||||||||||||
| Peak output | 5,118.1 | 12,228.5 | 8,954.87 | 10,877.1 | 9,045.26 | 10,576.4 | 10,708.5 | 13,127.9 | 7,925.94 | 8,612.14 | 10,243.7 | 9,082.32 | 10,948.2 | 7,360.93 | 6,751.02 | 8,270.31 | 7,594.81 | 9,261.44 | 9,244.82 | 8,215.12 | 7,738.76 | 11,470.6 | 12,429.7 | 7,429.66 | 8,845.87 | 4,588.91 | 11,359.9 | 10,242 | 9,140.56 | 4,691.05 | ||
| Average output | 1,382.27 | 3,419.3 | 2,426.07 | 3,088.94 | 2,737.69 | 2,709.01 | 3,073.06 | 3,591.82 | 2,013.73 | 2,101.9 | 2,723.09 | 2,734.54 | 2,970.65 | 2,214.85 | 1,872.11 | 2,084.97 | 2,559.96 | 2,425.15 | 2,857.4 | 2,112.33 | 2,357.52 | 3,252.05 | 3,970.8 | 2,035.54 | 2,539.07 | 1,341.23 | 3,386.45 | 3,164.75 | 2,566.85 | 1,544.99 | ||
| Daily energy | 33.17 | 82.06 | 58.23 | 74.13 | 65.7 | 65.02 | 73.75 | 86.2 | 48.33 | 50.45 | 65.35 | 65.63 | 71.3 | 53.16 | 44.93 | 50.04 | 61.44 | 58.2 | 68.58 | 50.7 | 56.58 | 78.05 | 95.3 | 48.85 | 60.94 | 32.19 | 81.27 | 75.95 | 61.6 | 37.08 |
Latest reading
Initial demand outturn stood at 20,800.67 MW in Sep 28, 2026. That is −8.2% from Sep 27, 2026 and −10.9% from a year earlier. The series on this page is daily and runs from Aug 1, 2025 to Sep 28, 2026. Source: Elexon (BMRS); National Energy System Operator (NESO) data portal; PV_Live — Sheffield Solar, University of Sheffield.
- Latest
- 20,800.67 MW
- Sep 28, 2026
- vs previous period
- −8.2%
- Sep 27, 2026
- vs a year earlier
- −10.9%
Look up any date
Pick a date between Jan 1, 2006 and Sep 28, 2026 to see every series in this table on that day. If there is no reading that day (weekend, holiday, or a weekly release), the last reading before it is shown.
About this data
The British electricity system day by day: demand outturn and generation by fuel from gas, nuclear, wind and imports (Elexon); national and transmission demand, embedded wind and solar and the flow on every interconnector to France, Belgium, the Netherlands, Norway, Denmark and Ireland (NESO); the carbon intensity of each unit generated and the fuel mix behind it (NESO); and total solar PV generation (PV_Live).
Frequently asked questions
- What does this electricity dataset cover?
- It tracks daily electricity demand, generation by fuel type, embedded wind and solar output, interconnector flows and average carbon intensity across the Great Britain grid.
- What generation sources and interconnectors are included?
- Breakdowns include gas, nuclear, biomass, hydro, embedded wind and solar, alongside subsea interconnector flows connecting Britain with France, Belgium, Denmark and Ireland.
- How frequently is the data updated and what is the coverage?
- Data is published daily by Elexon, the National Energy System Operator and Sheffield Solar, with historic generation and demand series starting in 2006.
- What units are used across these series?
- Electricity demand and power output are reported in MW and GWh, generation shares in percentages, and grid carbon intensity in grams of carbon dioxide per kilowatt-hour.
