Re:notch converts surplus solar PV into long-term winter heat savings - and into a scalable flexibility fleet.

Solar peaks at midday. Heat demand peaks in winter. We store high-intensity PV peaks seasonally in bedrock beneath each property - engineered for ~10× higher peak charging power than conventional seasonal ground storage.

Midday production that would otherwise go to waste becomes winter heat and megawatt-scale grid flexibility.

One system. Two outcomes.

For property owners:
- 50% lower heating and cooling costs
- 5-year payback
- 25+ year system life
- Unlocks up to 4x larger PV installations

For investors:
- 1.5 MW dispatchable capacity per site
- 100 sites ≈150 MW aggregated controllable power
- Flexibility at ~1/10 the cost per MW of battery systems

Owner savings fund deployment. Portfolio scale unlocks recurring flexibility revenue.

Based at Ideon in Lund. Scaling across Europe.

Re:notch

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