When is AWS eu-central-2 greenest?
Carbon-aware scheduling · updated 2026-10-03 08:37 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 27% of Switzerland's electricity demand around 09:00 UTC.
- Renewable output peaks around 10:00 UTC at roughly 37% of demand — the greenest time to use electricity today.
- The renewable share dips to about 0% around 21:00 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 07:00 | 844 | 6101 | -5257 | 14% |
| Sat 08:00 | 1370 | 7289 | -5919 | 19% |
| Sat 09:00 | 1915 | 7019 | -5103 | 27% |
| Sat 10:00 | 2201 | 6029 | -3828 | 37% |
| Sat 11:00 | 2241 | 6875 | -4634 | 33% |
| Sat 12:00 | 2017 | 6936 | -4919 | 29% |
| Sat 13:00 | 1629 | 6733 | -5104 | 24% |
| Sat 14:00 | 1101 | 7150 | -6049 | 15% |
| Sat 15:00 | 555 | 5832 | -5277 | 10% |
| Sat 16:00 | 160 | 5589 | -5429 | 3% |
| Sat 17:00 | 10 | 6671 | -6661 | 0% |
| Sat 18:00 | 9 | 6601 | -6592 | 0% |
| Sat 19:00 | 8 | 6637 | -6629 | 0% |
| Sat 20:00 | 7 | 7372 | -7365 | 0% |
| Sat 21:00 | 6 | 7412 | -7405 | 0% |