Electricity from oil, gas and coal-fired power stations is the most damaging to the climate, because only about 33 % of the oil, gas- and coal energy arrives to you as heating energy. The other 66 % normally damages the environment as unused heat. It is a similar picture with electric from nuclear power stations. Although they do not produce damaging CO2, they carry other incalculable and long lasting dangers for humanity.

Natural electricity from water, wind and solar is clean electricity without considerable climate damage. But all electricity is much too expensive and valuable to waste it. This applies also for electrically driven earth and earth and geothermal using water pumps. They produce about 30-40 % of their heat with extra expenditure for machines using electricity.

To calculate the environmental damage from the use of heating energy in houses and to be able to compare, you compute the primary energy requirement per m² and year in kWh/m²a. The primary energy requirement, has with the heating energy requirement, that the same dimensions kWh/m²a has, only a limited amount to do. Because only the primary energy requirement tells us, how environmentally damaging or friendly with regard to CO2- the climate damage is for the heating energy in the house.


Because this is so, the state guarantees cheap credit for house building via the KfW-Bank by means of the CO2- minimising programme and tax credits. These are all the more favourable, the lower the specific primary energy requirement for the heating and hot water in a house is.

The highest state subsidies for houses if they have a specific primary energy requirement under 40 kWh / m² a.

Bio- Solar- Houses have the economically lowest primary energy requirement of under 20Wh / m² a.

Because for them no artificially produced atmosphere or dust swirling ventilation systems are necessary, the occupants live in a natural healthy climate with low relative humidity, clean air to breathe and dry walls. Mould growth is physically excluded and there are also no dust mites. Also viruses, bacteria, allergens and other pollutants which the heating and ventilation systems can produce are equally excluded as are disturbing circulation noises.

A wall radiant heater warms the occupants as if by rays of the sun and fosters their health.

Also persons suffering from allergies feel well in this natural climate.

Heating costs are not only energy costs but also the costs for maintenance, repairs and depreciation of the heating equipment. All these together are running costs and they are becoming ever more expensive.

Therefore when comparing houses you not only take into account the building costs, rather much more the running costs.

Building costs are a one off - Ever increasing running costs are a burden for life!

Bio-Solar-Houses can be tested first!

In their unique Sonnenpark in St. Alban, the Bio-Solar-Haus company is the only company to offer you several examples of houses for you to try out. You can assure yourselves there of their unique advantages.
You do not need to be concerned about canvassing by sellers or about relying on more or less truthful brochures. We, the inventors of the Bio-Solar-House and our experienced specialists will personally answer all your questions. We will also tell you about the experiences of hundreds of enthusiastic clients.

We do not want to sell you anything. We only want to help you to do the right thing for you!

We basically only plan it together with you according to your individual requirements, your wishes and to the possibilities of your construction plan.

When constructing you have the choice between

A do it yourself house,
A do it yourself Plus house,
A prefabricated house,
A finished house.

Bio-Solar-Houses are especially suited to money saving assistance of the owner.