The Voltalia-Mana Storage – Battery Energy Storage System I is a 5,000kW energy storage project located in French Guiana. The rated storage capacity of the project is 4,000kWh.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2018 and will be commissioned in 2021.


The Voltalia-Mana Storage – Battery Energy Storage System I is being developed by Voltalia. The project is owned by Voltalia (100%).

The key applications of the project are renewable energy integaration and electric energy time shift.

Contractors involved

Voltalia is the owner. Voltalia is the developer.

Additional information

The project is a part of Voltalia’s “Mana storage” project which consists of two 5 MW battery storage units. The project will be used for daily arbitrage; storing abundant and cheap electricity produced in the middle of the day and releasing it during peak consumption in the evening will enable to decrease the cost of electricity for the grid operator. This storage unit will cover each day c.4% of French Guiana ’s peak power consumption on average, i.e. the peak consumption of 12,000 local inhabitants.

About Voltalia

Voltalia SA (Voltalia), a subsidiary of Voltalia Investissement SA, is a producer and service provider of renewable energy. The company generates and distributes renewable electricity using wind, biomass, hydro and solar energies. Its service offerings include project development, project financing; engineering services, procurement and construction. In addition, Voltalia also provides operation and maintenance services such as full asset management service, asset upgrading and revamping, and multi-technology and non intrusive systems. It generates and distributes renewable energy through its plants located in France, Greece and Brazil. The company has presence in Portugal, Brazil, Morocco, Greece, Italy, Spain, Belgium, Slovakia, Ukraine, UAE and the UK. Voltalia is headquartered in Paris, Ile-de-France, France.


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.