Weather Forecasting

Solar Forecast Accuracy in Europe: EPT-2 Leads All Horizons

1 / 5

EPT-2 sets a new state of the art for surface solar radiation (SSRD) accuracy across all forecast horizons from 0 to 240 hours in Europe.

2 / 5

Normalized mean absolute error (nMAE) improvements of four percentage points translate into approximately €3 million in annual savings for a 1 GW solar portfolio.

3 / 5

EPT-2 outperforms ECMWF HRES, ECMWF AIFS, and Solcast on SSRD, and no competing model closes the accuracy gap in the 2025–2026 validation cycle.

4 / 5

Jua for Energy delivers up to 24 daily refreshes, 15-minute actual-generation updates, and an AI agent (Athena) for live cross-model benchmarking.

5 / 5

Benchmark EPT-2 on your portfolio to see how it compares against your current solar forecast provider on your region.

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Jua's EPT-2 sets a new accuracy benchmark for solar forecasting in Europe, beating ECMWF & Solcast. Save ~€3M/GW/year. Benchmark your portfolio today.

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