X-Nico

2 unusual facts about solar water heating


Solar water heating

Following the energy crisis in the 1970s, in 1980 the Israeli Knesset passed a law requiring the installation of solar water heaters in all new homes (except high towers with insufficient roof area).

Solar water heating systems have become popular in China, where basic models start at around 1,500 yuan (US$235), much cheaper than in Western countries (around 80% cheaper for a given size of collector).


National Energy Foundation

Built in 2002-3, its office is heated by a Ground Source Heat Pump, with hot water being partly provided by an evacuated tube solar water heating system.


see also