Grid-scale storage margins hold as merchant revenues normalise
Operators are shifting from arbitrage-led models to blended contracts as ancillary service markets mature across Europe.
By Priya Raghavan · 22 August 2026 · 4 min read
Storage developers who built business cases on volatility alone are recalibrating. The most resilient portfolios now blend capacity contracts, ancillary services and tolling agreements.
Lenders have taken notice, with several institutions signalling appetite for longer tenors where contracted revenue exceeds half of the stack.
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