Energy Sources
Because of rising oil and gas prices and increasing environmental stress more and more homeowners are looking for alternatives in renewable energies. These higher get through the installation costs. Through the use and the saving in energy costs this into perspective, however, usually after 10 - 15 years, depending on the energy source. Moreover, one has to in times of an unstable world economy through political crises, an alternative energy source available. The reduced dependence on oil and gas exporting countries is not to be underestimated. In the implementation you can use in some cases, federal and state funding.
Solar Thermal
To solar energy in addition to solar thermal installations is also photovoltaics. Solar thermal uses of solar heat from the sun's rays to heat water or liquids hereby, which can then be used for the production of hot water or to support the heating system. In order to use solar thermal energy may need to be built on the roof of the house owner's solar panels that use the sun's rays through an absorber. Solar systems can cover up to 70% of the hot water needs, representing about 8% of the total heating energy. ;
Photovoltaics
Photovoltaic plants use solar energy, however, in order to convert it directly into electricity. This can also be used for my own house, or fed into the general circuit. For this the home owner then a decrease in price.The photo voltaic systems are still not as effective, their efficiency is currently between 6% and 18%. In spite of this, the PV a huge growth market, because in the future, the solar energy receive a greater share of the total current. This is also supported by the federal government in the form of the Renewable Energy Law.
Geothermal heating
With geothermal heating, the heat of the earth (geothermal) to exploit for the heating of the house. There are two different types of geothermal heating systems. These consist of a geothermal energy collectors that are laid out in loops about 1.5 meters below ground. It is important that these loops are installed below the frost line for the region. In these loops, there is a mixture of water and glycol, which is heated by the heat of the earth and the sun radiation. This heat is then carried to the heat pump and can be used.
Another variant of geothermal heating geothermal probes, so-called deep holes. Depending on the terrain, ground probes are introduced to 50 meters deep in the earth. By means of a carrier liquid is the geothermal heat up here in turn fed to the heat pump.
The advantage of geothermal heating is the year-round availability. Above all, underfloor heating can be used here with well, since they require a low flow temperature. The disadvantage is the often high cost of drilling and the large area required for the collectors.
Heating with Biomass
As biomass, renewable resources like wood, but also dead organisms, plants or living things (plant waste, manure) refers. It is a renewable energy source that biochemically solar energy stores that can be used for energy supply.
The private use common form of biomass, wood pellets used in stoves or other stoves can be burned. Elongated wood pellets in pellet form to provide CO ² - Free Heating and good heating values. Similarly, plants with wood chips (shredded wood waste). The chips are worthwhile investments but really only for forest owners or tenants who have a lot of wood waste. Thus resulting in space are very well heated, the climate is excellent.
To use this can, however, a fireplace , be present, as a deduction to the outside. Therefore, retrofitting is an all-expense associated with. The ovens are there but in almost any hardware store for less money. In addition to normal wood pellets here can also be burnt, which may be collected in the forest around.