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Electricity prices Great Britain, 20 September 2026

20 September 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
10.6p/kWh
+142% vs. yesterday · −62% vs. 7-day average
Lowest
-4.9p/kWh
Highest
52.8p/kWh
Hours with negative prices
16

Cheapest hours

Best time to run

Washing machine (2 h)
12:00–14:00, average -4.4p/kWh
Dishwasher (3 h)
11:00–14:00, average -4.2p/kWh
Electric car (4 h)
10:00–14:00, average -4.1p/kWh

Hourly prices

036912151821
Cheapest hours highlighted. Times in local time.
Show the data as a table
HourPrice
0-3.5p/kWh
1-1.8p/kWh
2-2.7p/kWh
3-4.0p/kWh
4-2.3p/kWh
5-3.2p/kWh
6-3.1p/kWh
7-1.8p/kWh
8-2.4p/kWh
9-2.4p/kWh
10-3.6p/kWh
11-3.8p/kWh
12-3.9p/kWh
13-4.9p/kWh
14-3.4p/kWh
15-3.1p/kWh
1615.1p/kWh
1748.0p/kWh
1852.8p/kWh
1941.0p/kWh
2041.1p/kWh
2139.0p/kWh
2233.9p/kWh
2333.9p/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 Sept4.4p/kWh-4.2p/kWh35.3p/kWh
18 Sept20.0p/kWh0.4p/kWh42.6p/kWh
17 Sept21.8p/kWh-1.9p/kWh48.2p/kWh
16 Sept35.6p/kWh28.3p/kWh56.6p/kWh
15 Sept34.7p/kWh23.9p/kWh56.7p/kWh
14 Sept40.0p/kWh31.5p/kWh59.9p/kWh
13 Sept38.1p/kWh31.4p/kWh57.3p/kWh
12 Sept23.7p/kWh-2.6p/kWh49.6p/kWh
11 Sept36.9p/kWh28.6p/kWh64.9p/kWh
10 Sept34.4p/kWh23.0p/kWh50.4p/kWh
9 Sept34.5p/kWh23.2p/kWh57.7p/kWh
8 Sept25.4p/kWh7.9p/kWh48.1p/kWh
7 Sept30.9p/kWh16.1p/kWh51.4p/kWh
6 Sept19.2p/kWh-4.4p/kWh49.0p/kWh

Source: Octopus Energy API