Swelect Energy Systems Limited engages in the manufacture and trading of solar modules, mounting structures, transformers, and inverters in India, Europe, and internationally. It operates through three segments: Solar and Solar Related Activities, Foundry Business, and Others. The company offers mono and multi-crystalline solar photovoltaic modules; building integrated photovoltaic modules; solar inverters; solar water pumps; and solar panels. It also engages in iron, steel, and investment casting activities. In addition, the company provides stabilizers; energy conservation and audits, design/retrofit sustainable buildings, and LED lighting systems; site feasibility analysis; engineering, procurement, and construction contracts; and operation and maintenance services. Further, it engages in solar and wind power generation, and provision of contract manufacturing services. The company was formerly known as Numeric Power Systems Limited and changed its name to Swelect Energy Systems Limited in May 2012. Swelect Energy Systems Limited was incorporated in 1994 and is based in Chennai, India.