Vision Nollenergihus
Energiförsörjning av passivhus med sol- och vindenergi
Climate change is the modern society?s common issue. The developed countries areconsuming more than what is sustainable, and the climate change due to the use offossil fuels can be seen clearly. EU has specified goals, in order to stop furtherdamage, which demand that every member state have to reduce its energyconsumption by 20 % before 2020 and 50 % before 2050, relative to 1995.The Swedish government uses a number of instruments to encourage reduction in theusage of energy, but every individual has to contribute to reach the goals.With increasing energy price the cost of living is going up. A lot of people are lookingfor ways to save energy and not be affected as much by the increasing price.Investments for insulation, replacement of windows and replacing old heating systemfor a new efficient heat pump is getting more and more common.This thesis is about investigating the possibilities in becoming independent from buyingenergy for households. The thesis describes ways to use and store the abundant solarenergy in the summer and transfer it to the winter.By building a neighborhood with five so called passive houses and having commoninstallations, some costs of the expensive investment can be divided on more thanone user. Then if the price of energy keeps on rising, it is possible to get a lower livingcost compared to conventional housing developed according to the Swedish BBRdemands. This system will become even more profitable when the skills andtechnology is perfected.