When is electricity greenest in Switzerland?
Renewable energy forecast · updated 2026-07-21 16:04 UTC
educk tracks how much of Switzerland'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 12% of Switzerland's electricity demand around 17:00 UTC.
- Renewable output peaks around 11:00 UTC at roughly 61% of demand — the greenest time to use electricity today.
- The renewable share dips to about 0% around 03:00 UTC, when grid electricity is at its most carbon-intensive.
Hourly forecast for Switzerland
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Tue 16:00 | 1533 | 7097 | -5564 | 22% |
| Tue 17:00 | 828 | 7163 | -6335 | 12% |
| Tue 18:00 | 225 | 7093 | -6867 | 3% |
| Tue 19:00 | 28 | 6409 | -6382 | 0% |
| Tue 20:00 | 21 | 5640 | -5619 | 0% |
| Tue 21:00 | 17 | 6057 | -6040 | 0% |
| Tue 22:00 | 17 | 5706 | -5689 | 0% |
| Tue 23:00 | 13 | 5592 | -5579 | 0% |
| Wed 00:00 | 11 | 6109 | -6098 | 0% |
| Wed 01:00 | 10 | 5407 | -5397 | 0% |
| Wed 02:00 | 9 | 5559 | -5550 | 0% |
| Wed 03:00 | 8 | 5684 | -5676 | 0% |
| Wed 04:00 | 181 | 5811 | -5630 | 3% |
| Wed 05:00 | 723 | 6769 | -6046 | 11% |
| Wed 06:00 | 1597 | 6542 | -4945 | 24% |
| Wed 07:00 | 2452 | 6163 | -3711 | 40% |
| Wed 08:00 | 3250 | 7248 | -3998 | 45% |
| Wed 09:00 | 3706 | 7556 | -3850 | 49% |
| Wed 10:00 | 4088 | 7115 | -3026 | 57% |
| Wed 11:00 | 4253 | 6917 | -2665 | 61% |
| Wed 12:00 | 4084 | 6918 | -2835 | 59% |
| Wed 13:00 | 3712 | 6715 | -3003 | 55% |
| Wed 14:00 | 3171 | 7451 | -4280 | 43% |
| Wed 15:00 | 2434 | 6656 | -4222 | 37% |
| Wed 16:00 | 1612 | 6850 | -5238 | 24% |
| Wed 17:00 | 858 | 6344 | -5486 | 14% |