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Electricity prices Great Britain, 20 August 2026

20 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
28.9p/kWh
−6% vs. yesterday · −5% vs. 7-day average
Lowest
23.4p/kWh
Highest
43.7p/kWh
Hours with negative prices
0

Cheapest hours

Best time to run

Washing machine (2 h)
14:00–16:00, average 23.5p/kWh
Dishwasher (3 h)
13:00–16:00, average 23.7p/kWh
Electric car (4 h)
12:00–16:00, average 23.9p/kWh

Hourly prices

036912151821
Cheapest hours highlighted. Times in local time.
Show the data as a table
HourPrice
027.1p/kWh
125.8p/kWh
224.9p/kWh
325.3p/kWh
426.4p/kWh
528.9p/kWh
631.0p/kWh
728.9p/kWh
826.8p/kWh
924.8p/kWh
1024.6p/kWh
1124.3p/kWh
1224.2p/kWh
1324.1p/kWh
1423.4p/kWh
1523.7p/kWh
1636.2p/kWh
1740.5p/kWh
1843.7p/kWh
1933.3p/kWh
2033.8p/kWh
2133.8p/kWh
2230.4p/kWh
2329.0p/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
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
6 Aug22.2p/kWh11.6p/kWh38.5p/kWh

Source: Octopus Energy API