RenewSys Signs 1.2 GW Supply Agreement with Kosol Energie for POE Encapsulants and Backsheets

RenewSys India Pvt. Ltd., one of India’s largest manufacturers of PV encapsulants and backsheets, has signed a 1.2 GW supply agreement with Gujarat-based solar module manufacturer Kosol Energie Pvt. Ltd. Under the agreement, RenewSys will supply its CONSERV POE encapsulants and PRESERV backsheets to Kosol Energie over twelve months, from October 2026 to September 2027.

The agreement follows the successful execution of a 1.1 GW POE encapsulant supply agreement between the two companies, which ran from December 2025 to September 2026. With the new contract, the partnership grows in both volume and scope, as Kosol Energie now sources two critical module components from RenewSys.

The materials will support Kosol Energie’s production of high-efficiency n-type TOPCon modules, including its glass-to-backsheet range, at its fully automated facility in Gujarat. RenewSys’ CONSERV POE encapsulants are UL certified and engineered for TOPCon cells, offering high volume resistivity, very low water absorption and strong resistance to potential induced degradation. Its PRESERV backsheets provide long-term moisture protection and electrical insulation, extending module life in demanding Indian field conditions.

Avinash Hiranandani, Vice Chairman and Managing Director, RenewSys India Pvt. Ltd., said, “Kosol Energie returning to us with a larger order, and adding backsheets to it, is the strongest endorsement a supplier can receive. It reflects the consistency of our quality and our ability to deliver at scale, month after month. As Indian module makers move rapidly to TOPCon and higher capacities, they need component partners who can keep pace technically and commercially. We are proud to be that partner for Kosol, and to strengthen a fully Made in India supply chain for the country’s solar mission.”

Kalpesh Kalthia, Chairman and Managing Director, Kosol Energie Pvt. Ltd., said, “Over the past year, RenewSys’ CONSERV POE encapsulants have delivered consistent quality and dependable supply across our production lines, which made extending this partnership an easy decision. Adding PRESERV backsheets gives us a single, trusted domestic partner for two critical materials as we scale our TOPCon module capacity. Partnerships like this are what will make India’s solar manufacturing ecosystem truly self-reliant.”

The agreement comes at a time when India’s domestic module manufacturing base is expanding quickly, driven by the Approved List of Models and Manufacturers (ALMM), the PLI scheme and rising demand from utility-scale, C&l and rooftop segments. Reliable domestic sourcing of encapsulants and backsheets helps module manufacturers reduce import dependence, shorten lead times and maintain consistent quality across production.