Incorporated in1998, SPI is an ISO9001-2000 company involved in the manufacture and supply of digital power and energy meters, and energy management systems. It provides single phase/three phase single energy meters, dual energy meters and paid energy meters with prepaid and postpaid options.
SPI makes energy meters that conform to BIS standards and are ISI marked. These also meet anti-tempering features as desired by state electricity boards. It has two manufacturing plants in India and R&D centres.