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Electricity prices Great Britain, 21 August 2026

21 August 2026 · Consumer price including taxes and charges.

Great Britain has no single public hourly price for households. We show Octopus Agile half-hourly prices (one supplier's dynamic tariff, inc. VAT), averaged over its 14 regions. The Ofgem price cap below applies to standard tariffs.

Average
30.3p/kWh
+5% vs. yesterday · +1% vs. 7-day average
Lowest
24.3p/kWh
Highest
45.3p/kWh
Hours with negative prices
0

Cheapest hours

Best time to run

Washing machine (2 h)
10:00–12:00, average 24.6p/kWh
Dishwasher (3 h)
10:00–13:00, average 24.6p/kWh
Electric car (4 h)
10:00–14:00, average 24.6p/kWh

Hourly prices

036912151821
Cheapest hours highlighted. Times in local time.
Show the data as a table
HourPrice
027.1p/kWh
126.5p/kWh
226.2p/kWh
326.1p/kWh
427.2p/kWh
531.3p/kWh
633.3p/kWh
733.1p/kWh
828.8p/kWh
927.3p/kWh
1024.3p/kWh
1124.9p/kWh
1224.6p/kWh
1324.7p/kWh
1424.6p/kWh
1525.3p/kWh
1640.9p/kWh
1743.1p/kWh
1845.3p/kWh
1934.8p/kWh
2035.5p/kWh
2134.4p/kWh
2230.0p/kWh
2328.0p/kWh

The average household tariff in the United Kingdom is 33.7p/kWh (all taxes and fixed charges included, Oct–Dec 2026).

Last 7 days, hour by hour

Cheapest hours highlighted. Times in local time.

Previous days

DateAverageLowestHighest
20 Aug28.9p/kWh23.4p/kWh43.7p/kWh
19 Aug30.8p/kWh23.9p/kWh48.3p/kWh
18 Aug29.3p/kWh22.3p/kWh47.9p/kWh
17 Aug34.7p/kWh28.9p/kWh52.0p/kWh
16 Aug29.5p/kWh22.0p/kWh45.8p/kWh
15 Aug26.5p/kWh14.5p/kWh43.6p/kWh
14 Aug30.1p/kWh22.2p/kWh53.3p/kWh
13 Aug32.3p/kWh22.6p/kWh72.6p/kWh
12 Aug28.6p/kWh17.8p/kWh59.8p/kWh
11 Aug26.6p/kWh17.7p/kWh45.4p/kWh
10 Aug26.1p/kWh19.5p/kWh44.3p/kWh
9 Aug18.6p/kWh1.7p/kWh39.4p/kWh
8 Aug17.3p/kWh-3.7p/kWh40.2p/kWh
7 Aug23.0p/kWh13.5p/kWh39.3p/kWh

Source: Octopus Energy API