When is AWS eu-south-2 greenest?
Carbon-aware scheduling · updated 2026-06-06 14:01 UTC
The AWS eu-south-2 region runs in
Zaragoza, Spain, on the Spain 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 104% of Spain's electricity demand around 14:15 UTC.
- Renewable output peaks around 14:00 UTC at roughly 104% of demand — the greenest time to use electricity today.
- The renewable share dips to about 31% around 19:45 UTC, when grid electricity is at its most carbon-intensive.
- There is forecast surplus renewable generation around 14:00 UTC — an ideal low-carbon window for flexible loads such as EV charging, laundry or heating.
Hourly grid forecast for AWS eu-south-2
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Sat 14:00 | 24311 | 23377 | +934 | 104% |
| Sat 14:15 | 24266 | 23374 | +892 | 104% |
| Sat 14:30 | 24215 | 23461 | +754 | 103% |
| Sat 14:45 | 24266 | 23621 | +645 | 103% |
| Sat 15:00 | 24594 | 23797 | +797 | 103% |
| Sat 15:15 | 24441 | 24029 | +412 | 102% |
| Sat 15:30 | 24226 | 24264 | -38 | 100% |
| Sat 15:45 | 23947 | 24504 | -557 | 98% |
| Sat 16:00 | 24159 | 24727 | -568 | 98% |
| Sat 16:15 | 23770 | 24999 | -1229 | 95% |
| Sat 16:30 | 23320 | 25292 | -1972 | 92% |
| Sat 16:45 | 22729 | 25596 | -2867 | 89% |
| Sat 17:00 | 22943 | 25946 | -3003 | 88% |
| Sat 17:15 | 21721 | 26227 | -4506 | 83% |
| Sat 17:30 | 20077 | 26477 | -6400 | 76% |
| Sat 17:45 | 18156 | 26702 | -8546 | 68% |
| Sat 18:00 | 16681 | 26935 | -10254 | 62% |
| Sat 18:15 | 14582 | 27133 | -12551 | 54% |
| Sat 18:30 | 12696 | 27324 | -14628 | 46% |
| Sat 18:45 | 11097 | 27493 | -16396 | 40% |
| Sat 19:00 | 9803 | 27766 | -17963 | 35% |
| Sat 19:15 | 8982 | 27823 | -18841 | 32% |
| Sat 19:30 | 8575 | 27794 | -19219 | 31% |
| Sat 19:45 | 8506 | 27673 | -19167 | 31% |
| Sat 20:00 | 8700 | 27646 | -18946 | 31% |
| Sat 20:15 | 8787 | 27330 | -18543 | 32% |
| Sat 20:30 | 8820 | 26919 | -18099 | 33% |
| Sat 20:45 | 8803 | 26444 | -17641 | 33% |
| Sat 21:00 | 8823 | 25916 | -17093 | 34% |
| Sat 21:15 | 8720 | 25431 | -16711 | 34% |
| Sat 21:30 | 8582 | 24990 | -16408 | 34% |
| Sat 21:45 | 8421 | 24588 | -16167 | 34% |