Premier Energies and RCT Plan a 12 GWh Battery-Storage Manufacturing Venture

Backlog edition: 2026-09-16. Reviewed on 20 September 2026.

Premier Energies and RCT India have entered a binding term sheet to form a joint venture for battery-energy-storage manufacturing in Telangana, according to reporting published on 11 September. The proposed facility targets 12 GWh of annual manufacturing capacity in two phases, beginning with 6 GWh.

This is a manufacturing plan. It is not a report that a 12 GWh plant has opened, nor does the number describe storage already connected to the electricity grid.

The proposed division of work

Mercom reports that Premier Battery Technologies, a Premier Energies subsidiary, will develop the facility. Premier is to contribute manufacturing capabilities, while RCT brings engineering expertise and supply-chain experience. The partners describe an export-oriented platform serving domestic and international customers.

The proposal expands Premier's interests beyond solar cells and modules into storage systems. Existing solar-manufacturing operations do not, however, establish that the new battery line has been built or qualified.

Three milestones to keep separate

A term sheet records a commercial step toward a venture. Establishing the venture, building the facility and commissioning repeatable production are subsequent milestones that require their own evidence.

It is also necessary to distinguish battery-system manufacturing from battery-cell manufacturing. The reviewed accounts describe storage-system capacity; the headline should not silently convert that into a claim about cell production or domestic cell chemistry.

For potential customers, the next useful details are the product scope, commissioning schedule, component sourcing and qualification results. These would show how the planned capacity relates to systems that can actually be delivered and supported.

The agreement identifies an intended route into a growing market. Its industrial contribution will depend on completing the project and demonstrating production, rather than on the nameplate capacity in the initial plan.

Sources

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