Users Handbook on Solar Water Heaters

Solar thermal technologies hold significant promise for India, with high solar insolation of to 4 6.5 kWh/ sq.m /day for an average of 280 sunny days. The solar water heating system is a commercially viable and technologically mature product
which has existed in the country for many years. Yet, against a technical potential of 45 million sq. km. of collector area, approximately 6 million sq. km of collector area has been installed. This works out to a little more than 2 sq.m./1000 people as
against countries like Israel and Cyprus, which have over 500 sq.m./1000 people.