GridAhead
Day-ahead forecast · free

Poland, Sunday, 25 October 2026

08:00 run, issued Sat 24 Oct 08:00 · 15-minute resolution
Price77 EUR/MWhmin 7 · max 154Load16.0 GWmin 13.6 · max 19.0Wind5.9 GWmin 4.1 · max 6.9Solar1.5 GWmin 0.0 · max 6.3

Solar forecast (GW)

NEWESTCSVExcel
The free plan opens with the newest forecast and lets you browse and download the last 30 delivery days.
Daily average
1.5 GW
all quarter-hours
Minimum
0.0 GW
00:00
Maximum
6.3 GW
10:15
Peak 08–20
3.0 GW
local time
8
6
4
2
0
0003060912151821
How sure is the forecast? Uncertainty bands, longer history and the API come with paid plans.Compare plans →

Price accuracy of live forecasts · 08:00 run

Every forecast is stored before the auction and scored against the published result. No backtests, nothing revised after the fact.
MAE, last 30 days
32.8 EUR/MWh
5 scored days
RMSE, last 30 days
48.6 EUR/MWh
5 scored days
Daily MAEDaily RMSEEUR/MWh, latest 5 days
19 Oct24 Oct
Load, wind and solar accuracy and up to a year of history come with Medium and Premium.

Need the uncertainty, or the data in your systems?

Free
Point forecasts for price, load, wind and solar; last 30 days to browse and download.
Medium
Price P10 / P50 / P90, load / wind / solar point forecasts, one year of history, accuracy for all four, REST API.
Premium
Most accurate price ensemble with P5–P95, load / wind / solar with P10–P90 bands, full history, REST API.
See plans and pricing