When is electricity greenest in Ireland?
Renewable energy forecast · updated 2026-07-21 16:06 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 12% of Ireland's electricity demand around 17:00 UTC.
- Renewable output peaks around 23:00 UTC at roughly 30% of demand — the greenest time to use electricity today.
- The renewable share dips to about 9% around 14:00 UTC, when grid electricity is at its most carbon-intensive.
Hourly forecast for Ireland
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Tue 16:00 | 521 | 4668 | -4147 | 11% |
| Tue 17:00 | 548 | 4537 | -3989 | 12% |
| Tue 18:00 | 586 | 4369 | -3783 | 13% |
| Tue 19:00 | 637 | 4239 | -3602 | 15% |
| Tue 20:00 | 681 | 4110 | -3429 | 17% |
| Tue 21:00 | 735 | 3936 | -3201 | 19% |
| Tue 22:00 | 774 | 3688 | -2914 | 21% |
| Tue 23:00 | 1078 | 3548 | -2470 | 30% |
| Wed 00:00 | 969 | 3462 | -2493 | 28% |
| Wed 01:00 | 866 | 3429 | -2563 | 25% |
| Wed 02:00 | 783 | 3419 | -2636 | 23% |
| Wed 03:00 | 735 | 3430 | -2695 | 21% |
| Wed 04:00 | 694 | 3579 | -2885 | 19% |
| Wed 05:00 | 646 | 3937 | -3291 | 16% |
| Wed 06:00 | 596 | 4330 | -3734 | 14% |
| Wed 07:00 | 579 | 4577 | -3998 | 13% |
| Wed 08:00 | 556 | 4633 | -4077 | 12% |
| Wed 09:00 | 520 | 4623 | -4103 | 11% |
| Wed 11:00 | 472 | 4600 | -4128 | 10% |
| Wed 12:00 | 454 | 4559 | -4105 | 10% |
| Wed 13:00 | 432 | 4566 | -4134 | 9% |
| Wed 14:00 | 425 | 4634 | -4209 | 9% |
| Wed 15:00 | 449 | 4710 | -4261 | 10% |
| Wed 16:00 | 474 | 4684 | -4210 | 10% |
| Wed 17:00 | 491 | 4555 | -4064 | 11% |