EPT-1.5 Technical Report

TL;DR

EPT-1.5 is a new Earth Physics Transformer model optimized for the European energy sector, significantly improving wind and solar predictions and outperforming existing AI and numerical weather models.

Contribution

The paper introduces EPT-1.5, a novel foundation AI earth system model tailored for energy applications, with enhanced accuracy over previous models and state-of-the-art wind prediction performance.

Findings

EPT-1.5 outperforms existing AI weather models in wind prediction.

EPT-1.5 surpasses the ECMWF IFS HRES in wind forecasting accuracy.

EPT-1.5 demonstrates substantial improvements over its predecessor, EPT-1.5.

Abstract

We announce the release of EPT-1.5, the latest iteration in our Earth Physics Transformer (EPT) family of foundation AI earth system models. EPT-1.5 demonstrates substantial improvements over its predecessor, EPT-1. Built specifically for the European energy industry, EPT-1.5 shows remarkable performance in predicting energy-relevant variables, particularly 10m & 100m wind speed and solar radiation. Especially in wind prediction, it outperforms existing AI weather models like GraphCast, FuXi, and Pangu-Weather, as well as the leading numerical weather model, IFS HRES by the European Centre for Medium-Range Weather Forecasts (ECMWF), setting a new state of the art.