Solar thermal systems use sunlight to heat water — for domestic use, swimming pools and more. A typical direct solar thermal system consists of collector, pipes and an insulated tank.
A typical 100 LPD (litre per day) system is sufficient to provide approximately 100 litres of hot water at an average temperature of 65 C every day on all sunny days. This helps save approximately 4 units of electricity daily (equivalent energy consumed by an electrical geyser) offering cost benefits of approximately Rs 4,000 per year. TPS solar water heaters are available in scalable multiples of 100. Large scale installations, for special applications involving heat transfer can also be engineered.