Electricity prices Agile K: South Wales, 15 September 2026
15 September 2026 · Consumer price including taxes and charges.
Average
35.8p/kWh
−13% vs. yesterday · +4% vs. 7-day average
Lowest
24.8p/kWh
Highest
57.7p/kWh
Hours with negative prices
0
Cheapest hours
- 11:00 · 24.8p/kWh
- 12:00 · 26.2p/kWh
- 13:00 · 25.0p/kWh
Best time to run
Washing machine (2 h)
11:00–13:00, average 25.5p/kWh
Dishwasher (3 h)
11:00–14:00, average 25.3p/kWh
Electric car (4 h)
11:00–15:00, average 25.6p/kWh
Hourly prices
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
9 Sept10 Sept11 Sept12 Sept13 Sept14 Sept15 Sept00:0003:0006:0009:0012:0015:0018:0021:00
Previous days
| Date | Average | Lowest | Highest |
|---|---|---|---|
| 14 Sept | 41.3p/kWh | 32.6p/kWh | 61.1p/kWh |
| 13 Sept | 39.2p/kWh | 32.5p/kWh | 58.4p/kWh |
| 12 Sept | 24.4p/kWh | -2.6p/kWh | 50.4p/kWh |
| 11 Sept | 38.0p/kWh | 29.6p/kWh | 66.2p/kWh |
| 10 Sept | 35.4p/kWh | 23.8p/kWh | 51.3p/kWh |
| 9 Sept | 35.6p/kWh | 24.1p/kWh | 58.8p/kWh |
| 8 Sept | 26.2p/kWh | 8.2p/kWh | 48.9p/kWh |
| 7 Sept | 31.8p/kWh | 16.7p/kWh | 52.3p/kWh |
| 6 Sept | 19.8p/kWh | -4.5p/kWh | 49.8p/kWh |
| 5 Sept | 14.1p/kWh | -2.8p/kWh | 46.5p/kWh |
| 4 Sept | 17.8p/kWh | -2.3p/kWh | 37.3p/kWh |
| 3 Sept | 27.4p/kWh | 8.9p/kWh | 50.2p/kWh |
| 2 Sept | 33.2p/kWh | 27.1p/kWh | 52.4p/kWh |
| 1 Sept | 28.6p/kWh | 11.2p/kWh | 51.0p/kWh |
Source: Bundesnetzagentur | SMARD.de (CC BY 4.0)