Supply chain

Solaria buys 1.1 GWh of battery storage for projects in Spain

The Spanish developer is investing more than EUR 80 million ($93.4 million) in the rollout.

By

Marija Maisch

Sep 05, 2025

Madrid-based renewables developer Solaria has announced the purchase of 1,102 MWh of battery energy storage systems, which will be installed across six of its projects in Spain.

The company said that it had allocated more than EUR 80 million ($93.4 million) for the purchase. It did not reveal the equipment supplier, nor the location and size of individual projects.

However, Solaria confirmed that the systems will be progressively brought online starting in December 2025. It also added that the battery storage projects will be managed by AI-powered energy optimisation software, which will maximise their efficiency and operational flexibility within the national electricity system.

The announcement follows Solaria’s April 2025 acqusition of 260 MWh of battery storage in its home country for around €20 million ($23.3 million). At the time, the Spanish developer also signed a framework agreement with an unnamed Tier 1 supplier to procure up to 1.4 GW/5.6 GWh of battery storage, to be deployed alongside its operational solar parks.

In its Q1 2025 earnings report, released in June, Solaria outlined its goal to deploy 500 MWh of battery capacity over the next 12 months, with the first system expected to be online before the year’s end.

The company currently claims a 2.8 GW battery storage development pipeline in Spain and Italy.

Written by

Marija Maisch
Marija has years of experience in a news agency environment and writing for print and online publications. She took over as the editor of pv magazine Australia in 2018 and helped establish its online presence over a two-year period.
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