When is AWS eu-west-1 greenest?
Carbon-aware scheduling · updated 2026-10-03 08:38 UTC
The AWS eu-west-1 region runs in Dublin, Ireland, on the Ireland 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 10% of Ireland's electricity demand around 09:00 UTC.
- Renewable output peaks around 22:00 UTC at roughly 44% of demand — the greenest time to use electricity today.
- The renewable share dips to about 9% around 08:00 UTC, when grid electricity is at its most carbon-intensive.
Hourly grid forecast for AWS eu-west-1
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Sat 08:00 | 378 | 4324 | -3946 | 9% |
| Sat 09:00 | 450 | 4356 | -3906 | 10% |
| Sat 11:00 | 572 | 4309 | -3737 | 13% |
| Sat 12:00 | 655 | 4255 | -3600 | 15% |
| Sat 13:00 | 752 | 4228 | -3476 | 18% |
| Sat 14:00 | 851 | 4268 | -3417 | 20% |
| Sat 15:00 | 934 | 4349 | -3415 | 21% |
| Sat 16:00 | 1006 | 4422 | -3416 | 23% |
| Sat 17:00 | 1093 | 4497 | -3404 | 24% |
| Sat 18:00 | 1191 | 4549 | -3358 | 26% |
| Sat 19:00 | 1288 | 4317 | -3029 | 30% |
| Sat 20:00 | 1394 | 4025 | -2631 | 35% |
| Sat 21:00 | 1507 | 3770 | -2263 | 40% |
| Sat 22:00 | 1601 | 3627 | -2026 | 44% |
| Sat 23:00 | 1124 | 3578 | -2454 | 31% |
| Sun 00:00 | 1179 | 3502 | -2323 | 34% |
| Sun 01:00 | 1220 | 3449 | -2229 | 35% |
| Sun 02:00 | 1256 | 3403 | -2147 | 37% |
| Sun 04:00 | 1295 | 3531 | -2236 | 37% |
| Sun 05:00 | 1328 | 3725 | -2397 | 36% |
| Sun 06:00 | 1370 | 3795 | -2425 | 36% |
| Sun 07:00 | 1396 | 3894 | -2498 | 36% |
| Sun 08:00 | 1414 | 4014 | -2600 | 35% |