When is Google Cloud europe-southwest1 greenest?
Carbon-aware scheduling · updated 2026-08-15 12:21 UTC
The Google Cloud europe-southwest1 region runs in Madrid, 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 90% of Spain's electricity demand around 12:30 UTC.
- Renewable output peaks around 13:15 UTC at roughly 91% of demand — the greenest time to use electricity today.
- The renewable share dips to about 17% around 19:30 UTC, when grid electricity is at its most carbon-intensive.
Hourly grid forecast for Google Cloud europe-southwest1
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Sat 12:15 | 25497 | 28450 | -2953 | 90% |
| Sat 12:30 | 25562 | 28431 | -2869 | 90% |
| Sat 12:45 | 25552 | 28352 | -2800 | 90% |
| Sat 13:00 | 25695 | 28241 | -2546 | 91% |
| Sat 13:15 | 25613 | 28118 | -2505 | 91% |
| Sat 13:30 | 25403 | 28009 | -2606 | 91% |
| Sat 13:45 | 25063 | 27926 | -2863 | 90% |
| Sat 14:00 | 24389 | 27785 | -3396 | 88% |
| Sat 14:15 | 24093 | 27787 | -3694 | 87% |
| Sat 14:30 | 23702 | 27842 | -4140 | 85% |
| Sat 14:45 | 23311 | 27938 | -4627 | 83% |
| Sat 15:00 | 23065 | 28049 | -4984 | 82% |
| Sat 15:15 | 22569 | 28180 | -5611 | 80% |
| Sat 15:30 | 22074 | 28306 | -6232 | 78% |
| Sat 15:45 | 21465 | 28429 | -6964 | 76% |
| Sat 16:00 | 20955 | 28547 | -7592 | 73% |
| Sat 16:15 | 20131 | 28677 | -8546 | 70% |
| Sat 16:30 | 19181 | 28812 | -9631 | 67% |
| Sat 16:45 | 17953 | 28945 | -10992 | 62% |
| Sat 17:00 | 16894 | 29112 | -12218 | 58% |
| Sat 17:15 | 15244 | 29204 | -13960 | 52% |
| Sat 17:30 | 13397 | 29264 | -15867 | 46% |
| Sat 17:45 | 11558 | 29318 | -17760 | 39% |
| Sat 18:00 | 10474 | 29291 | -18817 | 36% |
| Sat 18:15 | 8782 | 29426 | -20644 | 30% |
| Sat 18:30 | 7454 | 29633 | -22179 | 25% |
| Sat 18:45 | 6480 | 29864 | -23384 | 22% |
| Sat 19:00 | 5606 | 30292 | -24686 | 19% |
| Sat 19:15 | 5349 | 30374 | -25025 | 18% |
| Sat 19:30 | 5290 | 30300 | -25010 | 17% |
| Sat 19:45 | 5331 | 30091 | -24760 | 18% |
| Sat 20:00 | 5391 | 29879 | -24488 | 18% |
| Sat 20:15 | 5446 | 29516 | -24070 | 18% |
| Sat 20:30 | 5501 | 29132 | -23631 | 19% |
| Sat 20:45 | 5551 | 28748 | -23197 | 19% |
| Sat 21:00 | 5651 | 28320 | -22669 | 20% |
| Sat 21:15 | 5666 | 27985 | -22319 | 20% |
| Sat 21:30 | 5652 | 27692 | -22040 | 20% |
| Sat 21:45 | 5620 | 27421 | -21801 | 20% |