Masdar and Endesa have started construction of three BESS projects in Spain representing a combined investment of more than €25 million ($28 million).

Clean energy firm Masdar, officially the Abu Dhabi Future Energy Company and Spanish multinational utility Endesa said the projects will add over 60MW of battery storage capacity and more than 120MWh of storage to solar plants in the country.

The projects are the first storage developments under the Masdar-Endesa partnership, established in 2024 when Masdar acquired a stake in a portfolio of Endesa’s solar assets in Spain.

All three systems will use LFP batteries with grid-forming inverters. Masdar said the technology provides synthetic inertia, mimicking the behaviour of a conventional thermal or hydro generating unit, and responds almost instantly to sudden changes in grid conditions, supporting the stability of the electricity system.

Ibraheem Almansouri, Masdar’s acting COO, said: “Spain is one of Europe’s fastest-growing major economies and this growth requires secure, resilient power.

“These projects demonstrate how strategic partnerships can accelerate the deployment of advanced energy technologies, strengthen grid resilience and support sustainable economic growth, and they build on the strength of our partnership with Endesa while expanding our Iberian portfolio.”