Alter Enersun secures over €60 million financing from CaixaBank, BBVA and Banco Santander for 90 MW solar portfolio with battery storage in Extremadura, Spain

Type: Financing · Technology: Solar · Country: Spain · Capacity: 90 MW · Value: EUR 60M · Announced: 2026-09-14

Alter Enersun closed a financing package exceeding €60 million with CaixaBank, BBVA and Banco Santander to fund its five photovoltaic installations in Extremadura. The plants—Alconchel, Cáceres, San Serván, Jerez and Barcarrota—total 90 MW of solar capacity and will be equipped with 135 MWh of battery storage. The funding will cover the construction of the BESS units and reinforce the financial structure of the assets. This capital injection enables the developer to accelerate the rollout of renewable generation and storage, supporting Spain’s renewable integration goals. The agreement was announced in September 2026 and reflects growing lender interest in hybrid solar‑storage projects.

Analysis

Alter Enersun secured financing exceeding €60 million from CaixaBank, BBVA and Banco Santander on 14 September 2026 to fund five 90 MW photovoltaic installations with 135 MWh battery storage in Extremadura, Spain. BBVA, a global financial services group that supports sustainable business and cleantech initiatives, participated as a lender in the September 2026 transaction. CaixaBank and Banco Santander, both major Spanish banks, also acted as lenders in the €60 million package announced on 14 September 2026. The financing will cover construction of the battery energy storage systems and reinforce the financial structure of the assets, with the agreement announced in September 2026.

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