GREW Solar, Caelux Signs 4 GW Hybrid-Tandem Solar Module

GREW Solar and Caelux Corporation has announced a 4 Gigawatt (GW), five-year commercialisation partnership to produce high-power Hybrid-Tandem solar modules with Caelux’s Energy Producing Glass. This partnership expands Caelux’s contracted volume to 19 GW with solar module manufacturers globally for its perovskite-based technology.

GREW Solar will use Caelux’s glass with its N-Type TOPCon technology to create next-generation Hybrid-Tandem solar modules, including GREW’s large-format G12R series. Caelux technology is enabling GREW to build modules with two energy producing layers  to achieve industry-leading efficiencies of 29 percent plus.

Vinay Thadani, CEO and Director, GREW Solar, said, “We built GREW on the same philosophy that has guided the Chiripal Group for more than five decades - be at the forefront when it comes to technology innovation. Partnering with Caelux enables us to provide next-generation, high-power modules to the market using our existing gigawatt-scale manufacturing platform, which is already operating at scale.”

With one of the fastest and highest performing capacity buildouts in India’s solar industry, GREW Solar has scaled from a single 1.2 GW line in 2023 to a multi-gigawatt, multi-state production footprint that encompasses 11 GW of module and 8 GW of cell manufacturing capacity with 8 GW wafer and ingot lines under construction today. Under the agreement with Caelux, GREW Solar will be able to seamlessly upgrade to producing high-efficiency, Hybrid-Tandem modules with Caelux’s plug-and-play approach.

Scott Graybeal, CEO of Caelux, said, "The investment that GREW Solar has made into building its state-of-the art solar, fully-integrated manufacturing ecosystem is evident, and we are proud to partner with a company committed to innovation. The Caelux approach of partnering with module manufacturers means that companies, like GREW Solar, can significantly extend the useful life of their CAPEX-heavy manufacturing assets while offering the market next-generation modules.”

Supporting the country’s ‘Make in India’ vision and meeting its Production Linked Incentive (PLI), the companies are targeting 2028 for commercial production of the advanced perovskite-plus-silicon modules that meet Approved List of Module Manufacturers (ALMM) eligibility requirements.  

Hardip Singh, Chief Operating Officer, at GREW Solar, further stated, "We built our platform stage by stage, from cells and modules, and followed by wafers and ingots, so that we would be ideally positioned for the next leap in solar technology. Caelux's Energy Producing Glass is that significant leap and we are eager to be able to easily integrate it into our existing manufacturing infrastructure.

GREW Solar's currently expanding manufacturing footprint across Rajasthan and Madhya Pradesh, has created thousands of jobs, with more projected as a result of the two companies' partnership.