Re:notch Energy

Re:notch is building the missing battery between summer and winter. One of clean energy’s hardest unsolved problems is moving abundant summer energy into winter. Batteries shift power for hours, while conventional geothermal charges too slowly to catch sharp solar peaks. We solved the charging bottleneck with a system designed for 10x higher charging power, storing summer solar in bedrock for months and bringing it back as winter heat, while also providing grid flexibility.

Re:notch targets a €5B serviceable market of commercial properties wasting cheap summer solar and buying costly winter heat. Our seasonal battery closes that gap. We have 3 LOIs covering ~600,000 m² and ~20 potential sites. We sell long-term heating and flexibility services while customer and infrastructure capital fund the assets, creating scalable, asset-light recurring revenue. Our founders span HVAC, industrial tech and data. We are raising €1.2M to industrialise and deploy 2-3 commercial systems.