When is AWS eu-central-2 greenest?
Carbon-aware scheduling · updated 2026-09-04 22:01 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 0% of Switzerland's electricity demand around 23:00 UTC.
- Renewable output peaks around 12:00 UTC at roughly 46% 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 grid forecast for AWS eu-central-2
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Fri 21:00 | 17 | 6521 | -6504 | 0% |
| Fri 22:00 | 14 | 6093 | -6079 | 0% |
| Fri 23:00 | 13 | 5908 | -5895 | 0% |
| Sat 00:00 | 12 | 5213 | -5201 | 0% |
| Sat 01:00 | 11 | 5550 | -5539 | 0% |
| Sat 02:00 | 10 | 5713 | -5703 | 0% |
| Sat 03:00 | 9 | 5857 | -5848 | 0% |
| Sat 04:00 | 9 | 5785 | -5776 | 0% |
| Sat 05:00 | 156 | 6214 | -6058 | 3% |
| Sat 06:00 | 658 | 6697 | -6039 | 10% |
| Sat 07:00 | 1278 | 5661 | -4382 | 23% |
| Sat 08:00 | 1942 | 7170 | -5228 | 27% |
| Sat 09:00 | 2594 | 6495 | -3901 | 40% |
| Sat 10:00 | 2994 | 7660 | -4666 | 39% |
| Sat 11:00 | 3131 | 7762 | -4632 | 40% |
| Sat 12:00 | 3040 | 6614 | -3574 | 46% |
| Sat 13:00 | 2672 | 7680 | -5008 | 35% |
| Sat 14:00 | 2071 | 8022 | -5950 | 26% |
| Sat 15:00 | 1369 | 8044 | -6675 | 17% |
| Sat 16:00 | 704 | 6822 | -6118 | 10% |
| Sat 17:00 | 181 | 5985 | -5803 | 3% |
| Sat 18:00 | 11 | 5867 | -5856 | 0% |
| Sat 19:00 | 11 | 6985 | -6973 | 0% |
| Sat 20:00 | 11 | 5888 | -5877 | 0% |
| Sat 21:00 | 10 | 5958 | -5948 | 0% |