States » NorthPosted at: Sep 30 2026 3:53PM


IIT Kanpur to develop India's first Sun Simulator for Concentrated Photovoltaic systems

Kanpur, Sep30 (UNI) IIT Kanpur has signed a Memorandum of Understanding (MoU) with Bengaluru-based NexPV Energy Systems to design and develop India's first Sun Simulator for Concentrated Photovoltaic (CPV) systems.
The project is being facilitated by Invariance Automation, a member company of IIT Kanpur's Research and Technology Park Foundation (Technopark@IITK).
The new facility will enable CPV modules to be tested and characterised at the end of production lines in India, filling a critical gap in the country's solar manufacturing ecosystem.
The project is being led by Professor Ashish Garg and his team from IIT Kanpur's Department of Sustainable Energy Engineering. It aligns with the institute's focus on developing clean-energy technologies that can move from the laboratory to large-scale manufacturing, while advancing Technopark@IITK's mandate to strengthen industry-academia partnerships and support indigenous innovation.
Prof. Ashish Garg, Department of Sustainable Energy Engineering, IIT Kanpur, said, "India's net-zero commitment by 2070 will require solar deployment at a scale far beyond today's, and that growth must rest on domestic capability across the value chain. Testing infrastructure is a strategic part of that chain: a technology cannot scale if it cannot be measured reliably. CPV modules behave fundamentally differently from flat panels, and building India's first simulator designed for them is exactly the kind of translational research IIT Kanpur is committed to."
CPV systems use optical lenses to concentrate sunlight onto tiny, ultra-efficient multi-junction cells. These cells stack several semiconductor layers, each capturing a different part of the solar spectrum. The cells occupy only about 0.1% of the panel area, cutting cell requirement by more than 99% compared with conventional solar panels.
NexPV Energy Systems, led by Director Chidananda Murthy R, has developed indigenous CPV technology. Its proof-of-concept systems have been operating in the field for around three years, and the company is now preparing to move toward large-scale manufacturing.
Chidananda Murthy R said, "India has crossed 168 GW of installed solar capacity, but domestic cell manufacturing remains well behind module capacity, and with the cell mandate now in force, that gap directly affects deployment. CPV needs less than one per cent of the cell area of a conventional panel and, in our systems, about half the land. It can open a new pathway for solar in India's high-DNI regions. A domestic CPV simulator gives us the quality assurance to manufacture at scale."
Existing sun simulators are designed for flat-plate panels. CPV modules work only with direct, parallel sunlight, accept light within a very narrow angle, and are sensitive to spectral balance. The IIT Kanpur team will engineer a simulator that reproduces these conditions precisely. In future Invariance Automation will serve as the preferred manufacturing partner to take the system from prototype to production.
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