France transforms former quarry into solar power plant with batteries.

An old quarry in central France will be converted into a solar power plant integrated with a battery energy storage system.

The project is being developed by Engie and will have an installed capacity of 29,8 MWp in photovoltaic panels, in addition to batteries with a capacity to store up to 20 MWh.

Construction began in September 2026, and the project is expected to be connected to the electrical grid by mid-2027, with completion expected by December of the same year.

In total, the plant will occupy an area of ​​23 hectares and will have 46 solar panels and four battery units. According to the company's estimates, the electricity production could meet the equivalent consumption of approximately 15,5 people.

To transport the generated energy, the facility will be connected to a substation via a line approximately 11 kilometers long. Utilizing a former mining area allows the land to be given a new purpose, incorporating it into the renewable energy generation infrastructure.

Batteries help to harness solar power.

The storage system will allow some of the electricity produced during periods of peak solar generation to be saved for later use, according to the needs of the electrical grid.

Since photovoltaic production varies throughout the day and depends on weather conditions, batteries can help shift some of the generated energy to other times.

In this way, the project gains flexibility to manage the delivery of electricity to the grid. The integration between generation and storage also allows for the sharing of electrical connection infrastructure, although the actual benefits depend on the operational conditions and the project's design.

Engie expands investments in renewables and energy storage.

This initiative is part of Engie's strategy to expand its operations in renewable energy generation and storage systems. According to data released by the company, the group has 10,7 GW of storage capacity in already operational facilities.

The company has set a goal of reaching 95 GW in renewable energy and storage assets by 2030. The French project combines two aspects of this strategy: expanding solar generation and using batteries to make electricity supply more flexible.

At the same time, the conversion of the old quarry demonstrates a possibility for repurposing industrial areas for new energy projects.

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