From: Mercom India
BW ESS, an energy storage project developer and operator, has acquired two utility-scale standalone battery energy storage projects in Spain from Spanish renewable energy and storage developer Navacant.
The projects, located in the Valencia region, have a combined capacity of 126 MW and up to 675 MWh of energy storage capacity. The individual projects have capacities of 99 MW and 27 MW.
The acquisition expands BW ESS’s presence in Spain, where the company has been active in the energy storage market since 2025. BW ESS owns and operates energy storage projects and plans to retain long-term ownership of the two Valencia projects.
According to the release, Spain’s energy system requires assets that can respond quickly to changes in electricity supply and demand, support the integration of variable power, and strengthen operational resilience. The company said the scale and grid connection capacity of the projects supported its decision to acquire them.
Under the partnership arrangement, CST Energy, one of Navacant’s partners, will continue to lead the remaining development work until the projects reach ready-to-build status, using its local market and technical expertise. BW ESS will take responsibility for construction and delivery once the projects reach ready-to-build status.
The projects have been under development for approximately 18 months and are expected to reach ready-to-build status in 2027. Commercial operations are targeted for 2028.
Isaac García Moreno, Executive Director at BW ESS, said, “We are targeting significant growth in our Spanish energy storage platform through a combination of greenfield development and acquisitions of high-quality projects at an advanced stage. This requires partnering with developers who understand local market dynamics and can execute efficiently. Navacant’s track record and the project fundamentals, including their large-scale and symmetric grid access rights, align with our strategy of building a diversified, high-performing storage portfolio.”
According to Mercom’s recently released 1H 2026 Funding and M&A for Energy Storage report, project acquisition activity accelerated sharply during the first half of 2026, with approximately 14 GW of battery storage capacity changing hands in 63 transactions, compared with 6.1 GW in 31 transactions during the same period in 2025.
In July, Sonnedix, an independent solar power producer, announced the acquisition of a 260 MW battery storage portfolio in Tuscany, Italy, from Sphera Energy. The portfolio comprises two adjacent standalone battery storage projects.
