How is the energy used in the homes reduced so significantly?
The houses use about one tenth of the energy of a comparable conventional house i.e. approx. 8-10kWh/day. This is achieved primarily by removing the need for space heating, saving over 50% of a conventional house’s energy requirements. Hot water is efficiently produced via a heat pump and or super-insulated thermal stores saving over 50% of energy used by normal conventional hot water systems. Low energy appliances and light bulbs reduce the demand further. For more detail see HHP Technical Factsheets TF3: Thermal Design & Energy Conservation, TF5: Hot Water generation, and TF6: Ventilation & Air-Tightness. Copies can be purchased via the Shop.
