Below are some links for sites that may be useful when planning an energy efficient house:

www.enviro-friendly.com   Enviro Friendly Products supply a wide range of water and energy saving products including the Endless Solar Evacuated Tube Solar Hot Water Systems which have been installed in several house built by Paton Constructions.

www.greenhouse.gov.au/yourhome   A suite of consumer and technical guide materials and tools developed by the Australian Greenhouse Office to encourage the design, construction or renovation of homes to be comfortable, healthy and more environmentally sustainable.