Spain Approves Royal Decree Enacting Strategic Capacity Market for Grid Storage and Synchronous Condensers
The Spanish government has published a landmark Royal Decree establishing a formalized capacity market mechanism to remunerate standalone battery storage and...
Spain Approves Royal Decree Enacting Strategic Capacity Market for Grid Storage and Synchronous Condensers
The Spanish government has published a landmark Royal Decree establishing a formalized capacity market mechanism to remunerate standalone battery storage and synchronous condensers, unlocking 12 GW of flexibility assets needed to manage extreme solar penetration on the Iberian peninsula.
- Publish date: 2026-09-15
- Category: Standards & Policy
- Original source: Spanish Ministry for the Ecological Transition (MITECO) & Red Eléctrica de España (REE)
- Reading time: 5 min
Long-Term Availability Payments for Firm Flexibility
Approved following European Commission State Aid clearance, the regulation introduces multi-year capacity contracts for assets providing firm power during hours of low solar and wind dispatch.
Qualifying technologies include utility-scale BESS with at least 4 hours of storage duration and repurposed decommissioned coal turbine generators converted into high-inertia synchronous condensers.
Addressing Iberian Grid Curtailment and Zero-Price Volatility
Transmission system operator Red Eléctrica de España (REE) has experienced recurring zero and negative wholesale pricing alongside thermal line overloads due to explosive PV growth.
The capacity framework guarantees revenue certainty for EPC developers and equipment suppliers, spurring orders for 400 kV step-up transformers, large inverter stations, and dynamic reactive compensators across Spain.
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