WindEurope has opened applications for Hack the Climate 2026, an industry hackathon taking place in Dublin from 28 to 30 September. The event is being organised together with ESB, Hitachi Energy, Microsoft and SSE Airtricity, and invites teams to develop practical solutions to one of Europe’s growing grid challenges: renewable curtailment.
Curtailment occurs when clean electricity from wind and solar cannot be absorbed by the grid and is switched off. As Europe adds renewable capacity faster than it reinforces networks, the volume of wasted generation has become a measurable cost to the energy transition. Participants will work with real energy datasets and Microsoft AI tools to build approaches that predict, reduce or eliminate curtailment and keep more renewable electricity on the grid.
According to the organisers, winning entries should demonstrate a clear value proposition and show how a solution could be deployed by generators, grid operators or large energy users. The competition is open to data scientists, software developers, energy specialists and AI practitioners. Teams of three to five people can apply, with places limited to 20 teams on a first-come, first-served basis. Prizes reach up to 10,000 euros.
The theme is directly relevant to the Baltic Sea region, where onshore and offshore wind capacity is rising quickly and grid flexibility is emerging as a central constraint on further deployment. Tools that limit curtailment and improve dispatch have clear application in markets such as Poland, Germany and the Nordics, where variable renewable output is growing faster than transmission capacity.
