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Electricity prices Great Britain, 18 August 2026

18 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
29.3p/kWh
−15% vs. yesterday · −1% vs. 7-day average
Lowest
22.3p/kWh
Highest
47.9p/kWh
Hours with negative prices
0

Cheapest hours

Best time to run

Washing machine (2 h)
13:00–15:00, average 22.5p/kWh
Dishwasher (3 h)
11:00–14:00, average 22.6p/kWh
Electric car (4 h)
11:00–15:00, average 22.7p/kWh

Hourly prices

036912151821
Cheapest hours highlighted. Times in local time.
Show the data as a table
HourPrice
027.4p/kWh
125.2p/kWh
225.4p/kWh
324.4p/kWh
424.8p/kWh
527.0p/kWh
629.7p/kWh
729.6p/kWh
828.3p/kWh
925.7p/kWh
1023.5p/kWh
1122.7p/kWh
1223.0p/kWh
1322.3p/kWh
1422.8p/kWh
1523.8p/kWh
1639.3p/kWh
1744.6p/kWh
1847.9p/kWh
1935.2p/kWh
2035.1p/kWh
2134.8p/kWh
2230.8p/kWh
2331.1p/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
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
6 Aug22.2p/kWh11.6p/kWh38.5p/kWh
5 Aug16.5p/kWh-4.1p/kWh35.6p/kWh
4 Aug26.4p/kWh20.8p/kWh41.1p/kWh

Source: Octopus Energy API