When is electricity greenest in Portugal?
Renewable energy forecast · updated 2026-09-04 19:57 UTC
educk tracks how much of Portugal's electricity demand is met by wind and solar generation, using day-ahead forecasts from the ENTSO-E transparency platform. Use it to plan flexible energy use — charging an EV, running appliances or batteries — for when the grid is cleanest.
- Wind and solar are forecast to cover about 12% of Portugal's electricity demand around 20:00 UTC.
- Renewable output peaks around 14:00 UTC at roughly 54% of demand — the greenest time to use electricity today.
- The renewable share dips to about 11% around 19:00 UTC, when grid electricity is at its most carbon-intensive.
Hourly forecast for Portugal
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Fri 19:00 | 833 | 7612 | -6779 | 11% |
| Fri 20:00 | 850 | 7200 | -6350 | 12% |
| Fri 21:00 | 834 | 6759 | -5925 | 12% |
| Fri 22:00 | 796 | 6253 | -5457 | 13% |
| Fri 23:00 | 775 | 5745 | -4970 | 13% |
| Sat 00:00 | 751 | 5433 | -4682 | 14% |
| Sat 01:00 | 754 | 5188 | -4434 | 15% |
| Sat 02:00 | 779 | 5039 | -4260 | 15% |
| Sat 03:00 | 782 | 4977 | -4195 | 16% |
| Sat 04:00 | 732 | 4963 | -4230 | 15% |
| Sat 05:00 | 663 | 5046 | -4383 | 13% |
| Sat 06:00 | 740 | 5157 | -4417 | 14% |
| Sat 07:00 | 1248 | 5432 | -4184 | 23% |
| Sat 08:00 | 1981 | 5701 | -3720 | 35% |
| Sat 09:00 | 2539 | 5788 | -3249 | 44% |
| Sat 10:00 | 2782 | 5910 | -3128 | 47% |
| Sat 11:00 | 2975 | 5981 | -3006 | 50% |
| Sat 12:00 | 3074 | 5817 | -2744 | 53% |
| Sat 13:00 | 3060 | 5729 | -2669 | 53% |
| Sat 14:00 | 3089 | 5718 | -2629 | 54% |
| Sat 15:00 | 2816 | 5807 | -2991 | 48% |
| Sat 16:00 | 2150 | 6043 | -3893 | 36% |
| Sat 17:00 | 1473 | 6351 | -4878 | 23% |
| Sat 18:00 | 895 | 6724 | -5829 | 13% |
| Sat 19:00 | 744 | 6949 | -6204 | 11% |
| Sat 20:00 | 760 | 6615 | -5855 | 11% |