When is AWS eu-central-2 greenest?
Carbon-aware scheduling · updated 2026-08-04 08:36 UTC
The AWS eu-central-2 region runs in Zurich, Switzerland, on the Switzerland electricity grid. educk forecasts when that grid is greenest — using day-ahead wind & solar and demand data from ENTSO-E — so you can schedule carbon-aware workloads (batch jobs, CI, model training, backups, data pipelines) for the cleanest hours.
- Wind and solar are forecast to cover about 47% of Switzerland's electricity demand around 09:00 UTC.
- Renewable output peaks around 11:00 UTC at roughly 51% of demand — the greenest time to use electricity today.
- The renewable share dips to about 0% around 20:00 UTC, when grid electricity is at its most carbon-intensive.
Hourly grid forecast for AWS eu-central-2
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Tue 08:00 | 2737 | 6406 | -3669 | 43% |
| Tue 09:00 | 3206 | 6795 | -3589 | 47% |
| Tue 10:00 | 3513 | 7860 | -4348 | 45% |
| Tue 11:00 | 3580 | 7000 | -3420 | 51% |
| Tue 12:00 | 3382 | 7317 | -3935 | 46% |
| Tue 13:00 | 2938 | 7430 | -4492 | 40% |
| Tue 14:00 | 2337 | 7432 | -5095 | 31% |
| Tue 15:00 | 1601 | 6825 | -5224 | 23% |
| Tue 16:00 | 949 | 8037 | -7089 | 12% |
| Tue 17:00 | 429 | 6878 | -6449 | 6% |
| Tue 18:00 | 68 | 6556 | -6489 | 1% |
| Tue 19:00 | 11 | 6860 | -6849 | 0% |
| Tue 20:00 | 11 | 7045 | -7034 | 0% |
| Tue 21:00 | 10 | 6137 | -6127 | 0% |