Getting into hot water: Solar water heating pays for itself five times over
Monday, March 9, 2009 - 09:56
in Astronomy & Space
An analysis of the engineering and economics for a solar water-heating system shows it to have a payback period of just two years, according to researchers in India. They report, in the International Journal of Global Energy Issues, on the success of the 1000-liter system operating at a university hostel.