Climate change is the modern society’s common issue. The developed countries are
consuming more than what is sustainable, and the climate change due to the use of
fossil fuels can be seen clearly. EU has specified goals, in order to stop further
damage, which demand that every member state have to reduce its energy
consumption by 20 % before 2020 and 50 % before 2050, relative to 1995.
The Swedish government uses a number of instruments to encourage reduction in the
usage 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 looking
for ways to save energy and not be affected as much by the increasing price.
Investments for insulation, replacement of windows and replacing old heating system
for a new efficient heat pump is getting more and more common.
This thesis is about investigating the possibilities in becoming independent from buying
energy for households. The thesis describes ways to use and store the abundant solar
energy in the summer and transfer it to the winter.
By building a neighborhood with five so called passive houses and having common
installations, some costs of the expensive investment can be divided on more than
one user. Then if the price of energy keeps on rising, it is possible to get a lower living
cost compared to conventional housing developed according to the Swedish BBR
demands. This system will become even more profitable when the skills and
technology is perfected.
2013. , 56 p.