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Electricity prices Agile K: South Wales, 20 September 2026

20 September 2026 · Consumer price including taxes and charges.

Average
10.9p/kWh
+141% vs. yesterday · −62% vs. 7-day average
Lowest
-4.9p/kWh
Highest
53.7p/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
1-1.7p/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
1614.9p/kWh
1748.8p/kWh
1853.7p/kWh
1942.3p/kWh
2042.4p/kWh
2140.3p/kWh
2235.1p/kWh
2335.1p/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
19 Sept4.5p/kWh-4.2p/kWh35.7p/kWh
18 Sept20.6p/kWh0.5p/kWh43.2p/kWh
17 Sept22.5p/kWh-1.8p/kWh49.0p/kWh
16 Sept36.7p/kWh29.2p/kWh57.6p/kWh
15 Sept35.8p/kWh24.8p/kWh57.7p/kWh
14 Sept41.3p/kWh32.6p/kWh61.1p/kWh
13 Sept39.2p/kWh32.5p/kWh58.4p/kWh
12 Sept24.4p/kWh-2.6p/kWh50.4p/kWh
11 Sept38.0p/kWh29.6p/kWh66.2p/kWh
10 Sept35.4p/kWh23.8p/kWh51.3p/kWh
9 Sept35.6p/kWh24.1p/kWh58.8p/kWh
8 Sept26.2p/kWh8.2p/kWh48.9p/kWh
7 Sept31.8p/kWh16.7p/kWh52.3p/kWh
6 Sept19.8p/kWh-4.5p/kWh49.8p/kWh

Source: Bundesnetzagentur | SMARD.de (CC BY 4.0)