Indian PV manufacturers Rayzon Solar and Navitas Solar have separately entered into five-year partnerships with U.S.-based perovskite technology company Caelux to develop and manufacture a combined 10 GW of perovskite-silicon tandem solar modules in India.
Under the terms of the agreements, each company will integrate Caelux’s energy-producing solar glass—a perovskite-coated front glass—with its n-type TOPCon module technology to manufacture hybrid tandem panels with targeted efficiencies of up to 28%, compared with around 25% for conventional TOPCon modules.
Rayzon Solar’s partnership covers 5 GW of hybrid tandem module production. The company said it will leverage its 11.3 GW bifacial module manufacturing platform to integrate Caelux’s perovskite-coated glass into its TOPCon module production. Commercial production is targeted for 2028. The modules are expected to be eligible for India’s government-tendered utility-scale market.
Navitas Solar’s agreement also targets 5 GW of hybrid tandem module manufacturing, with commercial production expected to begin in 2028. Founded in 2013 and headquartered in Surat, Gujarat, Navitas Solar manufactures mono PERC and n-type TOPCon modules with power ratings of up to 720 W.
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