PV + BESS Co-location:
From Discourse to Data

As captured prices for solar assets in France continue to compress and negative price events become structural rather than exceptional, adding battery storage to existing PV is moving from an interesting option to an active investment question. The economics behind that decision remain, for most operators and investors, poorly documented.

This session presents the results of a joint case study by Forsyt Energy and Natural Power, conducted on a real 9 MWp PV plant in France. Natural Power established the technical foundations — site analysis, grid constraints, realistic BESS configurations, CAPEX and OPEX assumptions. Forsyt Energy modelled the market layer using ValuationPro: dispatch across Day-Ahead, Intraday and Ancillary Services, physics-aware degradation, and full cash flow and IRR analysis across configurations.

The results are not always what you would expect. The session will walk through the full IRR analysis across configurations, the revenue breakdown year by year, and the trade-offs between duration, capex and revenue capture that determine which sizing decision actually makes sense. Bring your questions.