Cool breakthrough: Shoolini varsity’s system boosts solar panel efficiency

Shoolini University’s Centre of Excellence in Energy Science and Technology has announced a major innovation in solar energy—a novel thermoelectric cooling (TEC) system for photovoltaic (PV) modules. This advancement, revealed ahead of World Earth Day, addresses the critical issue of solar panel overheating, boosting energy efficiency and extending panel lifespan.

Led by Dr Rahul Chandel and Dr Shyam Singh Chandel, the Photovoltaics Research Group at Shoolini University demonstrated that the TEC system effectively regulates solar panel temperatures by converting excess heat into electricity. Unlike traditional cooling methods that use air or water and often have operational limitations, TEC technology provides precise, passive cooling without moving parts or fluid circulation.

In an experimental study conducted in Shimla, TEC-equipped panels maintained a consistent temperature of around 25°C, in stark contrast to conventional panels, which reached 63°C. This significant 38°C reduction resulted in efficiency gains ranging from 6% to 27%, depending on the PV technology and installation conditions.

One of the most notable benefits of this technology is its environmental impact. Unlike conventional cooling systems that depend on chlorofluorocarbons (CFCs), which are harmful to the ozone layer, TEC systems operate without refrigerants, producing zero greenhouse gas emissions. This makes them a sustainable alternative, especially crucial as the global electricity demand for space cooling is projected to triple by 2050, primarily in developing countries.

Vice Chancellor Prof. Atul Khosla praised the innovation, stating, “The breakthrough by Dr Rahul Chandel and Dr. Shyam Singh Chandel marks a significant leap in sustainable solar technology and has already earned recognition from leading platforms like PV Magazine.”

The research team is now seeking industry partnerships and funding to commercialize the technology. Dr Rahul Chandel emphasized the need for further innovation, particularly in developing high-efficiency thermoelectric materials through advanced nanofabrication techniques, to bring TEC systems into widespread commercial use.