Ebook

The Iberia curtailment and hybrid design playbook

SEPTEMBER; 17, 2026

For solar developers in Spain and Portugal, generating energy is no longer the biggest challenge. Getting that energy exported, sold, and monetized is. As solar penetration grows across Iberia, developers face increasing curtailment, negative electricity prices, and grid constraints that can significantly impact project returns. Traditional solar-only design approaches often assume all generated energy can be exported, but today's market reality is far more complex.

The most successful developers are adapting by designing around grid constraints and incorporating battery energy storage systems (BESS) from the outset. By combining PV and storage, project teams can recover curtailed energy, shift generation into higher-value periods, and unlock additional revenue opportunities.

What this eBook includes

  • Why curtailment and negative pricing are reshaping project economics
  • How to assess saleable versus generated energy
  • The role of BESS in recovering lost value
  • Key hybrid design principles for export-constrained projects
  • A practical workflow for evaluating PV and storage scenarios
  • Best practices for building more resilient, bankable solar portfolios

Download the playbook to discover how leading Iberian developers are reducing curtailment risk, optimizing PV + storage designs, and maximizing project value in an increasingly constrained grid environment.

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