When is electricity greenest in Spain?
Renewable energy forecast · updated 2026-10-23 19:52 UTC
educk tracks how much of Spain's electricity demand is met by wind and solar generation, using day-ahead forecasts from the ENTSO-E transparency platform. Use it to plan flexible energy use — charging an EV, running appliances or batteries — for when the grid is cleanest.
- Wind and solar are forecast to cover about 24% of Spain's electricity demand around 20:00 UTC.
- Renewable output peaks around 21:00 UTC at roughly 24% of demand — the greenest time to use electricity today.
- The renewable share dips to about 23% around 21:30 UTC, when grid electricity is at its most carbon-intensive.
Hourly forecast for Spain
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Fri 19:45 | 6863 | 29144 | -22281 | 24% |
| Fri 20:00 | 6701 | 28408 | -21707 | 24% |
| Fri 20:15 | 6542 | 27679 | -21137 | 24% |
| Fri 20:30 | 6397 | 26992 | -20595 | 24% |
| Fri 20:45 | 6258 | 26360 | -20102 | 24% |
| Fri 21:00 | 6141 | 25688 | -19547 | 24% |
| Fri 21:15 | 5999 | 25180 | -19181 | 24% |
| Fri 21:30 | 5709 | 24737 | -19028 | 23% |
| Fri 21:45 | 5698 | 24343 | -18645 | 23% |