Monthly report · day-ahead marketElectricity prices in Great Britain, May 2026
May 2026
Monthly average10.47£104.72/MWh
Cheapest day10 May8.95p/kWh
Most expensive day18 May12.25p/kWh
Hours below zero0h
In May 2026, electricity on the day-ahead market in Great Britain cost an average of 10.47p/kWh (£104.72/MWh).
That is 26% more than in April 2026 and 47% more than in May 2025.
The cheapest day was Sunday, 10 May 2026, averaging 8.95p/kWh; the most expensive was Monday, 18 May 2026 at 12.25p/kWh.
The lowest price came on 23 May 2026 at 13:00 (6.42p/kWh), the highest on 18 May 2026 at 09:00 (14.35p/kWh).
On an average day, the cheapest three hours were 13:00–16:00. Weekends were on average 2% cheaper than weekdays.
Compared with
- Previous month (April 2026)
- 8.30 ▲
- Same month last year
- 7.14 ▲
- Weekdays
- 10.54
- Weekends
- 10.33
Wholesale price · p/kWh
Price by day
Daily wholesale average; the line marks the monthly average.
p/kWh
The average day
Average wholesale price for each hour of the day this month.
p/kWh · 13:00–16:00
All days
| Day | Average | Lowest | Highest | Hours < 0 |
|---|---|---|---|---|
| 1 May Friday | 10.29 | 8.52 23:00 | 13.37 19:00 | – |
| 2 May Saturday | 10.42 | 8.95 12:00 | 13.35 19:00 | – |
| 3 May Sunday | 10.06 | 7.78 07:00 | 12.40 19:00 | – |
| 4 May Monday | 10.45 | 8.64 12:00 | 13.79 19:00 | – |
| 5 May Tuesday | 10.71 | 9.05 12:00 | 13.33 19:00 | – |
| 6 May Wednesday | 11.01 | 9.50 02:00 | 13.72 19:00 | – |
| 7 May Thursday | 10.91 | 8.94 12:00 | 13.66 19:00 | – |
| 8 May Friday | 10.49 | 8.96 11:00 | 13.08 19:00 | – |
| 9 May Saturday | 9.99 | 8.10 13:00 | 11.99 19:00 | – |
| 10 May Sunday | 8.95 | 6.68 14:00 | 11.53 20:00 | – |
| 11 May Monday | 10.33 | 9.06 15:00 | 12.48 20:00 | – |
| 12 May Tuesday | 9.54 | 7.06 13:00 | 12.49 19:00 | – |
| 13 May Wednesday | 10.32 | 8.81 02:00 | 13.60 19:00 | – |
| 14 May Thursday | 10.67 | 8.71 14:00 | 13.04 20:00 | – |
| 15 May Friday | 9.81 | 7.66 11:00 | 12.95 20:00 | – |
| 16 May Saturday | 11.22 | 9.71 06:00 | 13.19 19:00 | – |
| 17 May Sunday | 10.55 | 8.74 06:00 | 13.99 20:00 | – |
| 18 May Monday | 12.25 | 10.36 15:00 | 14.35 09:00 | – |
| 19 May Tuesday | 9.69 | 6.98 05:00 | 13.31 19:00 | – |
| 20 May Wednesday | 10.09 | 7.53 14:00 | 13.93 20:00 | – |
| 21 May Thursday | 11.44 | 9.63 15:00 | 14.20 20:00 | – |
| 22 May Friday | 10.52 | 7.52 15:00 | 13.09 19:00 | – |
| 23 May Saturday | 10.15 | 6.42 13:00 | 13.77 20:00 | – |
| 24 May Sunday | 10.72 | 8.43 13:00 | 14.02 20:00 | – |
| 25 May Monday | 10.63 | 9.09 13:00 | 13.57 20:00 | – |
| 26 May Tuesday | 11.03 | 9.42 15:00 | 14.08 19:00 | – |
| 27 May Wednesday | 10.59 | 8.72 14:00 | 12.81 20:00 | – |
| 28 May Thursday | 10.11 | 7.23 13:00 | 12.77 20:00 | – |
| 29 May Friday | 10.46 | 7.38 15:00 | 13.57 21:00 | – |
| 30 May Saturday | 10.81 | 8.81 14:00 | 13.05 19:00 | – |
| 31 May Sunday | 10.41 | 8.82 14:00 | 12.92 20:00 | – |
p/kWh · Today · Methodology