UKGRIDWATCH

Historical Great Britain electricity grid data

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Explore grid history

Choose custom calendar dates (includes the end date)

Preset buttons use rolling time windows. This form selects whole local calendar dates, so applying it can change the duration.

Compare previous periodDownload period CSV

Local records available since 18 Sep 2026 15:59 BST. Coverage may contain gaps; Elexon API coverage can differ.

Selected window: 14 Oct 2026 01:57 BST to 21 Oct 2026 01:57 BST. This is a rolling window. Custom calendar dates below use inclusive dates and can select a different duration.

Source: Local compact archive; intended hourly resolution · Data publisher details: methodology

Last 24 hours 7 days 30 days 12 months
Demand CCGT (Gas) Wind generation Carbon intensity Grid frequency Market Index Price Generation comparison

Wind generation

7D history

Latest
11.13 GW
Low
4.76 GW
Average
9.80 GW
High
14.74 GW

14 Oct 01:59 BST – 21 Oct 00:59 BST · 168 records

Wind generation (GW)Time series. Missing readings and collection gaps are not joined. Use the sample slider or data table for exact values. 15.5 12.6 9.8 6.9 4.0 14 Oct 01:59 BST · Wind generation 9.270 GW 14 Oct 02:59 BST · Wind generation 8.040 GW 14 Oct 03:59 BST · Wind generation 7.370 GW 14 Oct 04:59 BST · Wind generation 5.980 GW 14 Oct 05:59 BST · Wind generation 4.760 GW 14 Oct 06:59 BST · Wind generation 5.310 GW 14 Oct 07:59 BST · Wind generation 5.280 GW 14 Oct 08:59 BST · Wind generation 6.390 GW 14 Oct 09:59 BST · Wind generation 7.680 GW 14 Oct 10:59 BST · Wind generation 8.820 GW 14 Oct 11:59 BST · Wind generation 10.400 GW 14 Oct 12:59 BST · Wind generation 12.100 GW 14 Oct 13:59 BST · Wind generation 13.110 GW 14 Oct 14:59 BST · Wind generation 12.410 GW 14 Oct 15:59 BST · Wind generation 12.980 GW 14 Oct 16:59 BST · Wind generation 12.700 GW 14 Oct 17:59 BST · Wind generation 13.040 GW 14 Oct 18:59 BST · Wind generation 13.470 GW 14 Oct 19:59 BST · Wind generation 13.440 GW 14 Oct 20:59 BST · Wind generation 14.000 GW 14 Oct 21:59 BST · Wind generation 13.470 GW 14 Oct 22:59 BST · Wind generation 13.950 GW 14 Oct 23:59 BST · Wind generation 14.260 GW 15 Oct 00:59 BST · Wind generation 14.690 GW 15 Oct 01:59 BST · Wind generation 14.450 GW 15 Oct 02:59 BST · Wind generation 13.940 GW 15 Oct 03:59 BST · Wind generation 14.740 GW 15 Oct 04:59 BST · Wind generation 14.740 GW 15 Oct 05:59 BST · Wind generation 13.690 GW 15 Oct 06:59 BST · Wind generation 13.090 GW 15 Oct 07:59 BST · Wind generation 13.410 GW 15 Oct 08:59 BST · Wind generation 12.860 GW 15 Oct 09:59 BST · Wind generation 12.640 GW 15 Oct 10:59 BST · Wind generation 11.960 GW 15 Oct 11:59 BST · Wind generation 11.760 GW 15 Oct 12:59 BST · Wind generation 11.650 GW 15 Oct 13:59 BST · Wind generation 11.560 GW 15 Oct 14:59 BST · Wind generation 11.270 GW 15 Oct 15:59 BST · Wind generation 10.750 GW 15 Oct 16:59 BST · Wind generation 10.290 GW 15 Oct 17:59 BST · Wind generation 8.860 GW 15 Oct 18:59 BST · Wind generation 8.150 GW 15 Oct 19:59 BST · Wind generation 7.690 GW 15 Oct 20:59 BST · Wind generation 6.960 GW 15 Oct 21:59 BST · Wind generation 6.130 GW 15 Oct 22:59 BST · Wind generation 5.500 GW 15 Oct 23:59 BST · Wind generation 5.780 GW 16 Oct 00:59 BST · Wind generation 6.130 GW 16 Oct 01:59 BST · Wind generation 5.970 GW 16 Oct 02:59 BST · Wind generation 5.820 GW 16 Oct 03:59 BST · Wind generation 5.340 GW 16 Oct 04:59 BST · Wind generation 5.450 GW 16 Oct 05:59 BST · Wind generation 7.020 GW 16 Oct 06:59 BST · Wind generation 7.040 GW 16 Oct 07:59 BST · Wind generation 6.010 GW 16 Oct 08:59 BST · Wind generation 5.410 GW 16 Oct 09:59 BST · Wind generation 5.510 GW 16 Oct 10:59 BST · Wind generation 7.270 GW 16 Oct 11:59 BST · Wind generation 8.390 GW 16 Oct 12:59 BST · Wind generation 9.080 GW 16 Oct 13:59 BST · Wind generation 9.020 GW 16 Oct 14:59 BST · Wind generation 9.080 GW 16 Oct 15:59 BST · Wind generation 8.980 GW 16 Oct 16:59 BST · Wind generation 8.940 GW 16 Oct 17:59 BST · Wind generation 9.840 GW 16 Oct 18:59 BST · Wind generation 10.580 GW 16 Oct 19:59 BST · Wind generation 10.460 GW 16 Oct 20:59 BST · Wind generation 11.310 GW 16 Oct 21:59 BST · Wind generation 11.020 GW 16 Oct 22:59 BST · Wind generation 10.480 GW 16 Oct 23:59 BST · Wind generation 10.260 GW 17 Oct 00:59 BST · Wind generation 10.520 GW 17 Oct 01:59 BST · Wind generation 10.480 GW 17 Oct 02:59 BST · Wind generation 10.590 GW 17 Oct 03:59 BST · Wind generation 10.660 GW 17 Oct 04:59 BST · Wind generation 10.540 GW 17 Oct 05:59 BST · Wind generation 10.270 GW 17 Oct 06:59 BST · Wind generation 10.680 GW 17 Oct 07:59 BST · Wind generation 10.780 GW 17 Oct 08:59 BST · Wind generation 10.390 GW 17 Oct 09:59 BST · Wind generation 10.530 GW 17 Oct 10:59 BST · Wind generation 9.640 GW 17 Oct 11:59 BST · Wind generation 8.800 GW 17 Oct 12:59 BST · Wind generation 8.520 GW 17 Oct 13:59 BST · Wind generation 8.750 GW 17 Oct 14:59 BST · Wind generation 8.870 GW 17 Oct 15:59 BST · Wind generation 9.610 GW 17 Oct 16:59 BST · Wind generation 9.990 GW 17 Oct 17:59 BST · Wind generation 9.540 GW 17 Oct 18:59 BST · Wind generation 9.870 GW 17 Oct 19:59 BST · Wind generation 9.700 GW 17 Oct 20:59 BST · Wind generation 10.110 GW 17 Oct 21:59 BST · Wind generation 9.980 GW 17 Oct 22:59 BST · Wind generation 9.580 GW 17 Oct 23:59 BST · Wind generation 9.080 GW 18 Oct 00:59 BST · Wind generation 8.880 GW 18 Oct 01:59 BST · Wind generation 8.940 GW 18 Oct 02:59 BST · Wind generation 8.600 GW 18 Oct 03:59 BST · Wind generation 8.080 GW 18 Oct 04:59 BST · Wind generation 8.190 GW 18 Oct 05:59 BST · Wind generation 8.140 GW 18 Oct 06:59 BST · Wind generation 8.300 GW 18 Oct 07:59 BST · Wind generation 9.340 GW 18 Oct 08:59 BST · Wind generation 9.070 GW 18 Oct 09:59 BST · Wind generation 8.370 GW 18 Oct 10:14 BST · Wind generation 8.010 GW 18 Oct 11:59 BST · Wind generation 8.140 GW 18 Oct 12:59 BST · Wind generation 8.280 GW 18 Oct 13:59 BST · Wind generation 8.780 GW 18 Oct 14:59 BST · Wind generation 8.550 GW 18 Oct 15:59 BST · Wind generation 9.550 GW 18 Oct 16:59 BST · Wind generation 9.120 GW 18 Oct 17:59 BST · Wind generation 8.720 GW 18 Oct 18:59 BST · Wind generation 8.600 GW 18 Oct 19:59 BST · Wind generation 8.670 GW 18 Oct 20:59 BST · Wind generation 8.900 GW 18 Oct 21:59 BST · Wind generation 8.870 GW 18 Oct 22:59 BST · Wind generation 9.310 GW 18 Oct 23:59 BST · Wind generation 9.390 GW 19 Oct 00:59 BST · Wind generation 10.100 GW 19 Oct 01:59 BST · Wind generation 10.340 GW 19 Oct 02:59 BST · Wind generation 10.070 GW 19 Oct 03:59 BST · Wind generation 9.340 GW 19 Oct 04:59 BST · Wind generation 9.010 GW 19 Oct 05:59 BST · Wind generation 8.980 GW 19 Oct 06:59 BST · Wind generation 9.250 GW 19 Oct 07:59 BST · Wind generation 8.920 GW 19 Oct 08:59 BST · Wind generation 8.370 GW 19 Oct 09:59 BST · Wind generation 7.660 GW 19 Oct 10:59 BST · Wind generation 7.050 GW 19 Oct 11:59 BST · Wind generation 7.050 GW 19 Oct 12:59 BST · Wind generation 7.080 GW 19 Oct 13:59 BST · Wind generation 6.830 GW 19 Oct 14:59 BST · Wind generation 7.150 GW 19 Oct 15:59 BST · Wind generation 7.230 GW 19 Oct 16:59 BST · Wind generation 7.950 GW 19 Oct 17:59 BST · Wind generation 8.120 GW 19 Oct 18:59 BST · Wind generation 8.810 GW 19 Oct 19:59 BST · Wind generation 9.790 GW 19 Oct 20:59 BST · Wind generation 10.080 GW 19 Oct 21:59 BST · Wind generation 10.470 GW 19 Oct 22:59 BST · Wind generation 9.880 GW 19 Oct 23:59 BST · Wind generation 9.510 GW 20 Oct 00:59 BST · Wind generation 9.660 GW 20 Oct 01:59 BST · Wind generation 9.650 GW 20 Oct 02:59 BST · Wind generation 10.040 GW 20 Oct 03:59 BST · Wind generation 10.050 GW 20 Oct 04:59 BST · Wind generation 11.020 GW 20 Oct 05:59 BST · Wind generation 11.660 GW 20 Oct 06:59 BST · Wind generation 11.780 GW 20 Oct 07:59 BST · Wind generation 12.830 GW 20 Oct 08:59 BST · Wind generation 13.100 GW 20 Oct 09:59 BST · Wind generation 13.150 GW 20 Oct 10:59 BST · Wind generation 13.560 GW 20 Oct 11:59 BST · Wind generation 13.680 GW 20 Oct 12:59 BST · Wind generation 13.600 GW 20 Oct 13:59 BST · Wind generation 13.210 GW 20 Oct 14:59 BST · Wind generation 12.630 GW 20 Oct 15:59 BST · Wind generation 12.700 GW 20 Oct 16:59 BST · Wind generation 12.190 GW 20 Oct 17:59 BST · Wind generation 11.880 GW 20 Oct 18:59 BST · Wind generation 11.510 GW 20 Oct 19:59 BST · Wind generation 11.020 GW 20 Oct 20:59 BST · Wind generation 10.680 GW 20 Oct 21:59 BST · Wind generation 10.370 GW 20 Oct 22:59 BST · Wind generation 10.210 GW 20 Oct 23:59 BST · Wind generation 10.710 GW 21 Oct 00:59 BST · Wind generation 11.130 GW 14 Oct 01:59 BST21 Oct 00:59 BST
● Wind generation
View data table

Times include the UTC offset. Blank readings are shown as unavailable.

Wind generation · GW
Time (UTC)Wind generation (GW)
2026-10-14T00:59:02+00:009.27
2026-10-14T01:59:02+00:008.04
2026-10-14T02:59:02+00:007.37
2026-10-14T03:59:01+00:005.98
2026-10-14T04:59:01+00:004.76
2026-10-14T05:59:02+00:005.31
2026-10-14T06:59:02+00:005.28
2026-10-14T07:59:02+00:006.39
2026-10-14T08:59:02+00:007.68
2026-10-14T09:59:02+00:008.82
2026-10-14T10:59:02+00:0010.4
2026-10-14T11:59:02+00:0012.1
2026-10-14T12:59:03+00:0013.11
2026-10-14T13:59:02+00:0012.41
2026-10-14T14:59:02+00:0012.98
2026-10-14T15:59:03+00:0012.7
2026-10-14T16:59:02+00:0013.04
2026-10-14T17:59:02+00:0013.47
2026-10-14T18:59:02+00:0013.44
2026-10-14T19:59:02+00:0014
2026-10-14T20:59:02+00:0013.47
2026-10-14T21:59:02+00:0013.95
2026-10-14T22:59:02+00:0014.26
2026-10-14T23:59:03+00:0014.69
2026-10-15T00:59:02+00:0014.45
2026-10-15T01:59:02+00:0013.94
2026-10-15T02:59:02+00:0014.74
2026-10-15T03:59:02+00:0014.74
2026-10-15T04:59:02+00:0013.69
2026-10-15T05:59:02+00:0013.09
2026-10-15T06:59:03+00:0013.41
2026-10-15T07:59:03+00:0012.86
2026-10-15T08:59:02+00:0012.64
2026-10-15T09:59:02+00:0011.96
2026-10-15T10:59:01+00:0011.76
2026-10-15T11:59:01+00:0011.65
2026-10-15T12:59:02+00:0011.56
2026-10-15T13:59:02+00:0011.27
2026-10-15T14:59:02+00:0010.75
2026-10-15T15:59:02+00:0010.29
2026-10-15T16:59:02+00:008.86
2026-10-15T17:59:02+00:008.15
2026-10-15T18:59:02+00:007.69
2026-10-15T19:59:02+00:006.96
2026-10-15T20:59:03+00:006.13
2026-10-15T21:59:02+00:005.5
2026-10-15T22:59:02+00:005.78
2026-10-15T23:59:02+00:006.13
2026-10-16T00:59:02+00:005.97
2026-10-16T01:59:02+00:005.82

168 stored samples in this view. Hover points for values.

Record coverage

Coverage counts time slots containing a valid reading, using the cadence below. It is a sampling check, not proof that every upstream event was captured. Estimated cadence is inferred from stored timestamps.

Metric / cadenceSelected period
Wind generation
60 min (configured/intended)		 99.4% · 167 / 168 expected slots
168 unique valid readings
How to read this history

Use the range buttons to choose a period and the metric buttons to change the measure. “Last 24 hours” is a rolling window, rather than the period since midnight. The other ranges look back 7 days, 30 days or 366 days. Available records may cover only part of the selected window.

What each measure means

  • Demand (GW): the recorded rate of electricity demand. Compare similar times of day before interpreting a rise or fall; daily routines, weather and the day of the week can all affect consumption.
  • CCGT (Gas) (GW): output from combined-cycle gas turbines, which use a gas turbine and recovered heat to generate electricity. This category should not be treated as a measure of every gas-fired technology.
  • Wind generation (GW): the wind output recorded in the dataset. Output is different from installed capacity: a wind fleet’s maximum rated power does not describe what it produces at every moment.
  • Generation comparison (GW): wind, CCGT, nuclear and solar plotted together. These four series are a selection of sources, not a complete electricity balance. “Largest now” identifies the largest of those available values in the last stored row; it may differ from the current live reading.
  • Carbon intensity (gCO₂/kWh): carbon dioxide emissions per unit of electricity. A lower reading means less CO₂ per kilowatt-hour on the reported basis, rather than a direct measurement of total emissions or a complete lifecycle assessment.
  • Grid frequency (Hz): the alternating-current system’s frequency, centred on a nominal 50 Hz. Small changes reflect the system’s ongoing supply-and-demand balancing. This chart alone cannot diagnose a fault or predict an interruption.
  • Market Index Price (£/MWh): a short-term wholesale electricity price indicator. It is not a household tariff or the full cost of delivering electricity. For unit comparison only, £100/MWh equals 10p/kWh before other charges; that conversion does not predict a bill.

What the summary numbers tell you

Low and High are the smallest and largest available sample values. Average is the arithmetic mean of those samples: each stored observation has equal weight. It is not a time-weighted average, an energy total or a volume-weighted market price. Missing records and uneven sampling can change its meaning. Latest means the last available value in the series, which may be older than the time you opened the page.

Resolution, missing records and chart scales

The Last 24 hours view uses the full-resolution local history for non-price metrics. Longer views use a compact archive intended for hourly records, so short-lived peaks may be absent. Price is requested from Elexon’s Market Index endpoint with the APXMIDP provider filter for windows of up to 31 days; longer price windows use locally archived values. Differences between views can reflect both the time period and the records used.

Points use actual elapsed time. Missing readings break the line; gaps longer than five minutes in full-resolution data, two hours in the compact archive or 90 minutes in price data are not joined. Tap or drag the chart, use its keyboard-accessible slider, or open the paginated table for exact values. CSV exports include the selected records without replacing missing readings with zero.

Most single-metric charts adjust their vertical scale to the available values, while frequency uses a fixed scale and the generation comparison starts at zero. Similar-looking slopes on separate charts need not represent similar-sized changes. An empty view means there are too few usable records to draw a chart; it does not establish that demand, output or prices were zero.

Try a careful comparison

Choose 7 days and inspect wind, then CCGT and demand over that same range. If wind falls while gas output rises, that is consistent with a change in the supply mix, but it does not establish the reason on its own. Demand, imports, storage and plant availability may also matter. For longer comparisons, consider seasonal differences and archive coverage before describing a trend.

These views concern Great Britain’s electricity system. For background and publisher definitions, see NESO’s generation and carbon-intensity information and Elexon’s Market Index overview. Read more about this independent project on the About page. Figures are for general information and education, not operational or trading decisions.