Monthly report · day-ahead marketElectricity prices in Spain, September 2026
In September 2026, electricity on the day-ahead market in Spain cost an average of €0.143/kWh (€143.25/MWh); with taxes, network charges and a sample supplier margin, the estimated final price was around €0.243/kWh.
That is 21% more than in August 2026 and 135% more than in September 2025.
The cheapest day was Wednesday, 16 September 2026, averaging €0.105/kWh; the most expensive was Monday, 28 September 2026 at €0.198/kWh.
The lowest price came on 20 September 2026 at 13:30 (-€0.001/kWh), the highest on 3 September 2026 at 21:00 (€0.300/kWh). In total, prices were below zero for 22 hours.
On an average day, the cheapest three hours were 14:00–17:00. Weekends were on average 18% cheaper than weekdays.
Compared with
- Previous month (August 2026)
- €0.118 ▲
- Same month last year
- €0.061 ▲
- Weekdays
- €0.151
- Weekends
- €0.123
Wholesale price · /kWh
Price by day
Daily wholesale average; the line marks the monthly average.
/kWh
The average day
Average wholesale price for each hour of the day this month.
/kWh · 14:00–17:00
All days
| Day | Average | Lowest | Highest | Hours < 0 | Final (est.) |
|---|---|---|---|---|---|
| 1 Sept Tuesday | €0.142 | €0.025 14:45 | €0.239 20:30 | – | €0.254 |
| 2 Sept Wednesday | €0.160 | €0.058 15:15 | €0.247 20:45 | – | €0.278 |
| 3 Sept Thursday | €0.156 | €0.027 13:45 | €0.300 21:00 | – | €0.273 |
| 4 Sept Friday | €0.169 | €0.083 12:30 | €0.260 21:15 | – | €0.290 |
| 5 Sept Saturday | €0.138 | €0.003 15:00 | €0.225 21:15 | – | €0.199 |
| 6 Sept Sunday | €0.140 | €0.000 12:00 | €0.249 21:15 | – | €0.201 |
| 7 Sept Monday | €0.172 | €0.057 13:45 | €0.265 21:15 | – | €0.293 |
| 8 Sept Tuesday | €0.152 | €0.034 16:00 | €0.230 08:00 | – | €0.267 |
| 9 Sept Wednesday | €0.108 | €0.000 11:45 | €0.212 20:45 | – | €0.211 |
| 10 Sept Thursday | €0.145 | €0.003 11:45 | €0.278 20:30 | – | €0.259 |
| 11 Sept Friday | €0.145 | €0.010 14:30 | €0.250 20:45 | – | €0.258 |
| 12 Sept Saturday | €0.118 | €0.000 11:30 | €0.214 19:45 | – | €0.174 |
| 13 Sept Sunday | €0.121 | -€0.001 12:15 | €0.238 20:30 | 5.25 | €0.178 |
| 14 Sept Monday | €0.177 | €0.041 12:30 | €0.300 19:45 | – | €0.300 |
| 15 Sept Tuesday | €0.167 | €0.036 13:45 | €0.268 08:00 | – | €0.287 |
| 16 Sept Wednesday | €0.105 | €0.000 13:45 | €0.196 20:45 | – | €0.207 |
| 17 Sept Thursday | €0.127 | €0.001 12:15 | €0.244 19:45 | – | €0.236 |
| 18 Sept Friday | €0.125 | €0.000 13:45 | €0.229 08:00 | – | €0.233 |
| 19 Sept Saturday | €0.110 | -€0.001 13:30 | €0.201 20:30 | 6.25 | €0.164 |
| 20 Sept Sunday | €0.113 | -€0.001 13:30 | €0.226 19:45 | 7 | €0.166 |
| 21 Sept Monday | €0.139 | €0.001 12:30 | €0.277 19:45 | – | €0.251 |
| 22 Sept Tuesday | €0.156 | €0.002 13:30 | €0.300 19:45 | – | €0.273 |
| 23 Sept Wednesday | €0.159 | €0.010 13:45 | €0.274 19:45 | – | €0.276 |
| 24 Sept Thursday | €0.157 | €0.018 13:30 | €0.288 19:45 | – | €0.274 |
| 25 Sept Friday | €0.159 | €0.019 13:45 | €0.287 19:45 | – | €0.276 |
| 26 Sept Saturday | €0.131 | €0.000 15:00 | €0.251 19:45 | – | €0.189 |
| 27 Sept Sunday | €0.114 | €0.000 13:00 | €0.210 19:45 | 3.50 | €0.168 |
| 28 Sept Monday | €0.198 | €0.147 13:15 | €0.281 20:15 | – | €0.326 |
| 29 Sept Tuesday | €0.130 | €0.001 14:00 | €0.239 08:00 | – | €0.240 |
| 30 Sept Wednesday | €0.165 | €0.086 13:45 | €0.261 19:45 | – | €0.284 |
/kWh · Today · Methodology