When is electricity greenest in Ireland?
Renewable energy forecast · updated 2026-10-22 20:48 UTC
educk tracks how much of Ireland'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 20% of Ireland's electricity demand around 21:00 UTC.
- Renewable output peaks around 03:00 UTC at roughly 80% of demand — the greenest time to use electricity today.
- The renewable share dips to about 15% around 20:00 UTC, when grid electricity is at its most carbon-intensive.
Hourly forecast for Ireland
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Thu 20:00 | 655 | 4482 | -3827 | 15% |
| Thu 21:00 | 818 | 4138 | -3320 | 20% |
| Thu 22:00 | 1111 | 3925 | -2814 | 28% |
| Thu 23:00 | 1987 | 3810 | -1823 | 52% |
| Fri 00:00 | 2331 | 3721 | -1390 | 63% |
| Fri 01:00 | 2590 | 3664 | -1074 | 71% |
| Fri 02:00 | 2799 | 3633 | -834 | 77% |
| Fri 03:00 | 2933 | 3665 | -732 | 80% |
| Fri 04:00 | 2955 | 3883 | -928 | 76% |
| Fri 05:00 | 2915 | 4338 | -1423 | 67% |
| Fri 06:00 | 2855 | 4758 | -1903 | 60% |
| Fri 07:00 | 2825 | 4915 | -2090 | 57% |
| Fri 08:00 | 2866 | 4903 | -2037 | 58% |
| Fri 09:00 | 2990 | 4840 | -1850 | 62% |
| Fri 10:00 | 3187 | 4808 | -1621 | 66% |
| Fri 11:00 | 3393 | 4752 | -1359 | 71% |
| Fri 12:00 | 3550 | 4695 | -1145 | 76% |
| Fri 13:00 | 3676 | 4696 | -1020 | 78% |
| Fri 14:00 | 3673 | 4761 | -1088 | 77% |
| Fri 15:00 | 3562 | 4856 | -1294 | 73% |
| Fri 16:00 | 3351 | 4974 | -1623 | 67% |
| Fri 17:00 | 3098 | 5054 | -1956 | 61% |
| Fri 18:00 | 2827 | 4962 | -2135 | 57% |
| Fri 19:00 | 2571 | 4721 | -2150 | 54% |
| Fri 20:00 | 2401 | 4385 | -1984 | 55% |
| Fri 21:00 | 2310 | 4094 | -1784 | 56% |