EPC DEPCOM building Puerto Rico solar-plus-storage plant with 51MW BESS

By Jonathan Touriño Jacobo
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DEPCOM Power, a provider of engineering, procurement and construction (EPC) work, is midway through construction on what it has called Puerto Rico’s “largest” solar-plus-storage project.

Located in Salinas, the Ciro One project is expected to begin operations at the end of 2024. It will have a capacity of 90MW for solar PV and a battery energy storage system (BESS) with an output of 51.5MW, which integrates a lithium-titanate oxide (LTO) battery. Once operational, the EPC firm will also operate and maintain the solar-plus-storage plant for five years.

The PV system has been designed to withstand hurricane-force winds – which Puerto Rico is prone to experience, and was severely hit by hurricanes Irma and Maria in 2017 – with a lower panel tilt angle and east/west orientation, while inverters include salt fog filters to mitigate effects of salinity on the system’s power electronics. The plant is built alongside developer Ciro Energy Group and local subcontractor Lord Construction.

Utility-scale projects in Puerto Rico are scarce due to the limited land available on the island, while its residential market is much more developed. This was fast-tracked after the territory was hit by hurricanes Irma and Maria, which put the island in a total blackout. These unfortunate events boosted interest in and consciousness of solar-plus-storage on the island’s residential market, as covered in a recent PV Tech Premium article.

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DEPCOM VP of energy storage business development Greg Weyl recently spoke to Energy-Storage.news about the company’s combined EPC and operations and maintenance (O&M) role at a 200MW/800MWh battery energy storage system (BESS) for Arizona utility Tucson Electric Power.

Energy-Storage.news’ publisher Solar Media will host the 6th Energy Storage Summit USA, 19-20 March 2024 in Austin, Texas. Featuring a packed programme of panels, presentations and fireside chats from industry leaders focusing on accelerating the market for energy storage across the country. For more information, go to the website.

27 October 2026
Santiago, Chile
Energy Storage Summit Latin America brings together developers, investors, utilities and policymakers to explore how storage is advancing system stability, regulation, deployment and new revenue models across the region. With insights from Chile, Argentina, Brazil, Mexico and beyond, the Summit focuses on financing, policy clarity, hybridisation, supply chain development and project optimisation as LATAM accelerates its storage buildout.

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