Renewable energy company Zelestra has entered into two new power purchase agreements (PPAs) with EDP to add four-hours of battery storage to existing solar plants in Spain.
The deals will bring about 462MW-hours (MWh) of battery capacity to 181MW-direct current (MWdc) of solar power across two sites, Pedroso in Seville and Valkyria in Castilla-La Mancha.
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Under the new agreements, Zelestra will install a 25MW battery energy storage system (BESS) with around 100MWh of capacity at Pedroso, which already operates a 31MWdc solar plant.
At Valkyria, a 90.45MW (approximately 362MWh) BESS will be added to the existing 150MWdc solar facility.
EDP serves as the current offtaker for both sites.
EDP global energy management CEO Pedro Neves Ferreira said: “At EDP, innovation goes beyond deploying renewable generation. We are continuously developing new solutions that combine technology, market expertise and flexibility assets to unlock greater value from clean energy.
“By integrating storage with renewable generation, we can enhance system resilience, improve efficiency and accelerate the electrification and decarbonisation of the economy.”
With these transactions, Zelestra and EDP’s joint portfolio in Spain now comprises four hybrid projects, with more than 1GW-hour of contracted storage capacity.
The companies’ cooperation began in 2025 with the country’s first combined solar and BESS PPA, involving a 170MWdc solar installation and 400MWh of storage at Trujillo, Extremadura.
Earlier, in 2024, the companies signed another agreement for a 160MWh BESS at the 50MW Pizarroso plant in Cáceres, reportedly the first PPA in Spain to hybridise an operational solar plant.
Zelestra Spain CEO Jaime Burguete said: “Zelestra and EDP have built something together that is unique in the Spanish market: a commercial partnership that is unlocking large-scale storage capacity that will benefit the wider energy system.
“These four hybrid projects show that energy storage is bankable in Spain, and we expect this segment of the market to be the main growth area in the years ahead.
“It also means that every megawatt-hour moved into the evening or early morning is clean power the system would otherwise have had to find elsewhere.”
In July 2026, Zelestra and EnBW signed a long-term tolling agreement for a 300MW share of a planned battery energy storage project in Emilia-Romagna, Italy.
