A house that produces more energy than the household consumes: the Plus Energy House. Superior insulation and airtight qualities and the generation of energy from sunlight, means that there is no monthly heating or electricity bills, making it a very economical home. It's also comfortable, with no variation of temperature regardless of the location--it's a dream home, one that's healthy for those living in it and gentle to the global environment.
In January of 2014, the first Plus Energy House was built in Niigata Prefecture, an area of cold winters and short daylight hours. The client who decided to build the Plus Energy House, the builder who did the construction and Gadelius Industry, which is promoting the Plus Energy House, all provide different views on the construction of the house.
Plus Energy House official website： http://plus-energy-house.jp/