When is Google Cloud europe-southwest1 greenest?
Carbon-aware scheduling · updated 2026-10-22 20:49 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 47% of Spain's electricity demand around 21:00 UTC.
- Renewable output peaks around 13:15 UTC at roughly 103% of demand — the greenest time to use electricity today.
- The renewable share dips to about 24% around 19:45 UTC, when grid electricity is at its most carbon-intensive.
- There is forecast surplus renewable generation around 13:15 UTC — an ideal low-carbon window for flexible loads such as EV charging, laundry or heating.
Hourly grid forecast for Google Cloud europe-southwest1
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Thu 20:15 | 12282 | 28388 | -16106 | 43% |
| Thu 20:30 | 12306 | 27651 | -15345 | 45% |
| Thu 20:45 | 12321 | 26977 | -14656 | 46% |
| Thu 21:00 | 12336 | 26268 | -13932 | 47% |
| Thu 21:15 | 12352 | 25724 | -13372 | 48% |
| Thu 21:30 | 12374 | 25241 | -12867 | 49% |
| Thu 21:45 | 12400 | 24810 | -12410 | 50% |
| Thu 22:00 | 12305 | 24579 | -12274 | 50% |
| Thu 22:15 | 12319 | 24194 | -11875 | 51% |
| Thu 22:30 | 12331 | 23836 | -11505 | 52% |
| Thu 22:45 | 12336 | 23505 | -11169 | 52% |
| Thu 23:00 | 12355 | 23153 | -10798 | 53% |
| Thu 23:15 | 12347 | 22877 | -10530 | 54% |
| Thu 23:30 | 12332 | 22631 | -10299 | 54% |
| Thu 23:45 | 12306 | 22413 | -10107 | 55% |
| Fri 00:00 | 12283 | 22169 | -9886 | 55% |
| Fri 00:15 | 12249 | 22013 | -9764 | 56% |
| Fri 00:30 | 12215 | 21887 | -9672 | 56% |
| Fri 00:45 | 12180 | 21788 | -9608 | 56% |
| Fri 01:00 | 12144 | 21681 | -9537 | 56% |
| Fri 01:15 | 12117 | 21618 | -9501 | 56% |
| Fri 01:30 | 12098 | 21566 | -9468 | 56% |
| Fri 01:45 | 12076 | 21526 | -9450 | 56% |
| Fri 02:00 | 12072 | 21457 | -9385 | 56% |
| Fri 02:15 | 12024 | 21443 | -9419 | 56% |
| Fri 02:30 | 11954 | 21449 | -9495 | 56% |
| Fri 02:45 | 11870 | 21508 | -9638 | 55% |
| Fri 03:00 | 11770 | 21392 | -9622 | 55% |
| Fri 03:15 | 11694 | 21664 | -9970 | 54% |
| Fri 03:30 | 11636 | 22090 | -10454 | 53% |
| Fri 03:45 | 11592 | 22664 | -11072 | 51% |
| Fri 04:00 | 11563 | 23206 | -11643 | 50% |
| Fri 04:15 | 11526 | 24031 | -12505 | 48% |
| Fri 04:30 | 11481 | 24953 | -13472 | 46% |
| Fri 04:45 | 11427 | 25917 | -14490 | 44% |
| Fri 05:00 | 11388 | 27139 | -15751 | 42% |
| Fri 05:15 | 11310 | 27996 | -16686 | 40% |
| Fri 05:30 | 11177 | 28707 | -17530 | 39% |
| Fri 05:45 | 11100 | 29262 | -18162 | 38% |
| Fri 06:00 | 11015 | 29971 | -18956 | 37% |
| Fri 06:15 | 10969 | 30218 | -19249 | 36% |
| Fri 06:30 | 11007 | 30318 | -19311 | 36% |
| Fri 06:45 | 11158 | 30308 | -19150 | 37% |
| Fri 07:00 | 12721 | 30252 | -17531 | 42% |
| Fri 07:15 | 13816 | 30163 | -16347 | 46% |
| Fri 07:30 | 15183 | 30093 | -14910 | 50% |
| Fri 07:45 | 16712 | 30028 | -13316 | 56% |
| Fri 08:00 | 19624 | 30033 | -10409 | 65% |
| Fri 08:15 | 21290 | 29906 | -8616 | 71% |
| Fri 08:30 | 22395 | 29720 | -7325 | 75% |
| Fri 08:45 | 23513 | 29495 | -5982 | 80% |
| Fri 09:00 | 24618 | 29218 | -4600 | 84% |
| Fri 09:15 | 25410 | 28994 | -3584 | 88% |
| Fri 09:30 | 25992 | 28806 | -2814 | 90% |
| Fri 09:45 | 26085 | 28654 | -2569 | 91% |
| Fri 10:00 | 26098 | 28489 | -2391 | 92% |
| Fri 10:15 | 26340 | 28393 | -2053 | 93% |
| Fri 10:30 | 26636 | 28315 | -1679 | 94% |
| Fri 10:45 | 26854 | 28248 | -1394 | 95% |
| Fri 11:00 | 27245 | 28207 | -962 | 97% |
| Fri 11:15 | 27403 | 28133 | -730 | 97% |
| Fri 11:30 | 27498 | 28043 | -545 | 98% |
| Fri 11:45 | 27394 | 27928 | -534 | 98% |
| Fri 12:00 | 27744 | 27857 | -113 | 100% |
| Fri 12:15 | 27709 | 27667 | +42 | 100% |
| Fri 12:30 | 27690 | 27435 | +255 | 101% |
| Fri 12:45 | 27662 | 27187 | +475 | 102% |
| Fri 13:00 | 27710 | 26837 | +873 | 103% |
| Fri 13:15 | 27559 | 26665 | +894 | 103% |
| Fri 13:30 | 27412 | 26575 | +837 | 103% |
| Fri 13:45 | 27069 | 26565 | +504 | 102% |
| Fri 14:00 | 27124 | 26517 | +607 | 102% |
| Fri 14:15 | 26857 | 26639 | +218 | 101% |
| Fri 14:30 | 26587 | 26809 | -222 | 99% |
| Fri 14:45 | 26007 | 27010 | -1003 | 96% |
| Fri 15:00 | 26286 | 27250 | -964 | 96% |
| Fri 15:15 | 25006 | 27445 | -2439 | 91% |
| Fri 15:30 | 23242 | 27613 | -4371 | 84% |
| Fri 15:45 | 21116 | 27775 | -6659 | 76% |
| Fri 16:00 | 19236 | 27850 | -8614 | 69% |
| Fri 16:15 | 16839 | 28087 | -11248 | 60% |
| Fri 16:30 | 14525 | 28398 | -13873 | 51% |
| Fri 16:45 | 12691 | 28767 | -16076 | 44% |
| Fri 17:00 | 10817 | 29184 | -18367 | 37% |
| Fri 17:15 | 9394 | 29601 | -20207 | 32% |
| Fri 17:30 | 8501 | 30005 | -21504 | 28% |
| Fri 17:45 | 8036 | 30360 | -22324 | 26% |
| Fri 18:00 | 7863 | 30904 | -23041 | 25% |
| Fri 18:15 | 7720 | 31050 | -23330 | 25% |
| Fri 18:30 | 7585 | 31041 | -23456 | 24% |
| Fri 18:45 | 7445 | 30875 | -23430 | 24% |
| Fri 19:00 | 7333 | 30835 | -23502 | 24% |
| Fri 19:15 | 7184 | 30372 | -23188 | 24% |
| Fri 19:30 | 7029 | 29779 | -22750 | 24% |
| Fri 19:45 | 6863 | 29094 | -22231 | 24% |
| Fri 20:00 | 6701 | 28364 | -21663 | 24% |
| Fri 20:15 | 6542 | 27638 | -21096 | 24% |
| Fri 20:30 | 6397 | 26954 | -20557 | 24% |
| Fri 20:45 | 6258 | 26324 | -20066 | 24% |
| Fri 21:00 | 6141 | 25654 | -19513 | 24% |
| Fri 21:15 | 5999 | 25145 | -19146 | 24% |