When is AWS eu-central-2 greenest?
Carbon-aware scheduling · updated 2026-08-15 12:46 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 26% of Switzerland's electricity demand around 13:00 UTC.
- Renewable output peaks around 12:00 UTC at roughly 32% of demand — the greenest time to use electricity today.
- The renewable share dips to about 0% around 19:00 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 |
|---|---|---|---|---|
| Sat 12:00 | 2455 | 7611 | -5156 | 32% |
| Sat 13:00 | 1961 | 7593 | -5633 | 26% |
| Sat 14:00 | 1460 | 7754 | -6294 | 19% |
| Sat 15:00 | 1033 | 7567 | -6533 | 14% |
| Sat 16:00 | 608 | 7384 | -6777 | 8% |
| Sat 17:00 | 253 | 7174 | -6921 | 4% |
| Sat 18:00 | 37 | 7218 | -7181 | 1% |
| Sat 19:00 | 10 | 7132 | -7122 | 0% |
| Sat 20:00 | 11 | 6243 | -6233 | 0% |
| Sat 21:00 | 12 | 5973 | -5961 | 0% |