A Zero Emissions House

(1) Wind Catcher for summer ventilation (2) Solar Array for electricity and hot water (3) High Level of Insulation (4) Biomass Boiler

In the UK, various companies are building cutting-edge green homes as part of the Offsite 2007 Exhibition. Yesterday saw the official launch of a “zero emissions house” called the Lighthouse built by the Kingspan company. It will be the first home to meet the UK government environmental standard, level six of the Code of Sustainable Homes, which all new houses must meet by 2016.
The home has a simple, “barn-like” form with a 40 degree pitched roof that includes solar panels and rainwater harvesting. The home also boasts high levels of thermal insulation, passive cooling and ventilation, biomass boilers and downstairs bedrooms.Biomass boilers run on organic fuels such as wood pellets and count as zero-emission because the amount of carbon dioxide they give off when they are burned is offset by the amount that was absorbed when the crop was grown. The house also has a waste separation system that allows combustible waste to be burned to help provide power.

http://www.metaefficient.com/architecture-and-building/a-zero-emissions-house.html