India-US solar tie-up targets 5GW of hybrid modules
Commercial production is targeted for 2028.
India’s Navitas Solar and the US’ Caelux Corporation have signed a five-year 5-gigawatt (GW) partnership to manufacture hybrid tandem solar modules combining perovskite and silicon technology in India.
The modules will pair Caelux's perovskite glass layer with Navitas' N-Type TOPCon silicon technology, targeting efficiencies of up to 28% — above the ceiling of standard silicon-only panels.
Caelux says its technology increases energy density by up to 30% and cuts levelised cost of electricity by 20% or more.
India has surpassed 150 GW of installed solar capacity, making it the third-largest solar market globally. The government's target of 500 GW of non-fossil fuel capacity by 2030 requires roughly 350 GW of additional renewable installations within four years.
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Commercial production is targeted for 2028, with modules designed to meet the Approved List of Module Manufacturers (ALMM) certification required for projects under India's central and state solar programmes.
Navitas Solar, founded in 2013 and based in Surat, Gujarat, is described as India's only vertically integrated solar manufacturer with backward and forward integration.
Caelux, headquartered in Baldwin Park, California, is a perovskite solar technology developer. This is the company's second India tie-up disclosed this month.
The companies flagged forward-looking risks including technology development delays, regulatory approval timelines, supply chain constraints, and policy shifts that could affect the stated production targets.