When is electricity greenest in Ireland?
Renewable energy forecast · updated 2026-09-04 17:50 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 10% of Ireland's electricity demand around 22:00 UTC.
- Renewable output peaks around 15:00 UTC at roughly 17% of demand — the greenest time to use electricity today.
- The renewable share dips to about 6% around 23:00 UTC, when grid electricity is at its most carbon-intensive.
Hourly forecast for Ireland
| Time (UTC) | Renewable (MW) | Demand (MW) | Surplus (MW) | Share |
|---|---|---|---|---|
| Fri 21:00 | 342 | 3901 | -3559 | 9% |
| Fri 22:00 | 303 | 3707 | -3404 | 8% |
| Fri 23:00 | 214 | 3575 | -3361 | 6% |
| Sat 00:00 | 209 | 3477 | -3268 | 6% |
| Sat 01:00 | 220 | 3420 | -3200 | 6% |
| Sat 02:00 | 225 | 3381 | -3156 | 7% |
| Sat 03:00 | 223 | 3389 | -3166 | 7% |
| Sat 04:00 | 224 | 3502 | -3278 | 6% |
| Sat 05:00 | 248 | 3682 | -3434 | 7% |
| Sat 06:00 | 294 | 3792 | -3498 | 8% |
| Sat 07:00 | 331 | 4025 | -3694 | 8% |
| Sat 08:00 | 337 | 4214 | -3877 | 8% |
| Sat 09:00 | 321 | 4295 | -3974 | 7% |
| Sat 10:00 | 339 | 4317 | -3978 | 8% |
| Sat 11:00 | 386 | 4280 | -3894 | 9% |
| Sat 12:00 | 459 | 4229 | -3770 | 11% |
| Sat 13:00 | 560 | 4185 | -3625 | 13% |
| Sat 14:00 | 655 | 4203 | -3548 | 16% |
| Sat 15:00 | 711 | 4257 | -3546 | 17% |
| Sat 16:00 | 702 | 4282 | -3580 | 16% |
| Sat 17:00 | 642 | 4214 | -3572 | 15% |
| Sat 18:00 | 548 | 4112 | -3564 | 13% |
| Sat 19:00 | 456 | 4096 | -3640 | 11% |
| Sat 20:00 | 398 | 3938 | -3540 | 10% |
| Sat 21:00 | 377 | 3724 | -3347 | 10% |
| Sat 22:00 | 374 | 3567 | -3193 | 10% |