The Planta Solar Cerro Dominador – Molten Salt Thermal Energy Storage System is an 110,000kW energy storage project located in Calama, Antofagasta, Chile.

The thermal energy storage project uses molten salt as its storage technology. The project will be commissioned in 2021.


The Planta Solar Cerro Dominador – Molten Salt Thermal Energy Storage System is being developed by Abengoa Solar and Acciona Industrial. The project is owned by Cerro Dominador (100%).

The key application of the project is onsite renewable generation shifting.

Contractors involved

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By GlobalData

Cerro Dominador is the owner. Abengoa Solar and Acciona Industrial are the developers. Abengoa Solar is the technology provider for the project.

Additional information

The complex will consist of a photovoltaic (PV) plant and a solar thermal plant. The PV plant will directly inject energy into the northern SING grid, while the solar thermal plant will use 10,600 mirrors (heliostats) to concentrate solar radiation into a receiver at the top of a 250m tower. The radiation will heat molten salt, generating steam to power a turbine. Thermal storage of the molten salt will allow Atacama I to generate power 24 hours a day.

About Abengoa Solar

Abengoa Solar SA (Abengoa Solar), a subsidiary of Abengoa SA is an alternative energy company that offers solar power generation solutions. The company develops, builds and operates commercial concentrating solar power and photovoltaic power plants. It offers management services in the development, design, engineering, procurement and construction of parabolic trough, tower solar thermal plants and PV plants; design, manufacture and marketing of components for solar plants developed both within abengoa solar and in collaboration with partners; and others. Abengoa Solar also provides engineering, procurement and construction (EPC) turnkey services of its solar thermal and photovoltaic plants. The company operates in the US, Mexico, Chile, Brazil, Germany, Italy, Spain, Algeria, the UAE, Saudi Arabia, China, India and Australia. Abengoa Solar is headquartered in Seville, Spain.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.