The Ouarzazate Project Phase 2 (NOOR II) – Molten Salt Thermal Energy Storage System is a 200,000kW energy storage project located in Ouarzazate, Draa-Tafilalet, Morocco.

The thermal energy storage project uses molten salt as its storage technology. The project was announced in 2014 and was commissioned in 2018.


The Ouarzazate Project Phase 2 (NOOR II) – Molten Salt Thermal Energy Storage System was developed by ACWA Power International and SENER Grupo de Ingenieria. The project is owned by ACWA Power International (50%) and Moroccan Agency for Sustainable Energy (50%).

The key applications of the project are renewables capacity firming and renewables energy time shift.

Contractors involved

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By GlobalData

ACWA Power International, Moroccan Agency for Sustainable Energy and SENER Grupo de Ingenieria have delivered the project.

Additional information

Type of storage: 2-tank indirect.

About ACWA Power International

ACWA Power International (ACWA Power) is a power generation company. It is engaged in providing power and desalinated water at low cost efficiently. It also supplies electricity and potable water to its customers. It generates power through coal, oil, gas, thermal, solar and wind technologies. ACWA Power also offers operation and maintenance services to power and water desalination industry through its subsidiary, the First National Operations & Maintenance Company. The company has operations across the Middle East, Africa and Asia. ACWA Power is headquartered in Riyadh, Saudi Arabia.

About SENER Grupo de Ingenieria

SENER Grupo de Ingenieria SA (SENER) is a construction company that offers engineering services. The company’s services include marine infrastructures, environmental projects, hydraulic engineering, architecture and urban planning. It offers turnkey solutions and operates projects on space, aeronauticas and vehicles, defense and security, healthcare and solar energy. SENER provides engineering and systems integration of aerospace, infrastructure and transport, power and process; and marine. The company serves aerospace, infrastructure and transport, power, oil and gas, and marine sectors. It operates through its offices in Colombia, the UAE, the UK, the US, India, Japan, Argentina, Mexico, Poland, Brazil, China, Algiers, Portugal, Santiago de Chile, Spain and South Korea. SENER is headquartered in Getxo, 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.