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RENEWABLE ENERGY SYSTEMS LIMITED, was incorporated in the year 1985.
Renewable Energy Systems Ltd. (RESL) has been a pioneer in the field of thermal batteries since its establishment in 1985, with its headquarters in Hyderabad, Telangana, India. The company's journey began by acquiring thermal battery technology from DRDO & USSR, paving the way for commercial production and supplies to the Defence establishment and other sectors. A significant milestone was achieved in 1995 when RESL successfully developed and produced thermal battery systems specifically designed for missile applications. Over the years, we have proudly supplied over 2.5 lakh batteries to Defence establishments and other esteemed customers.