A large number of house party in Berlin and Brandenburg already offer properties with State of the art solar energy technology. Lam urges energy Autarkheit. The solar expert recommends to use the power of the photovoltaic system produced. Because the sale of self-generated electricity to power companies guarantee little security because in the long run more likely taxation. In the energetically self-sufficient buildings of the future everything with solar energy can be refuelled by the E-bike to the car. For this, the Sun should shine every day, says Lam.

For the construction of houses in Berlin and Brandenburg, provider provide special reservoir that can store waste produced solar power for weeks. The EnergieAutarkeHaus”the Helma home AG avant-gardist in the construction of energy self-sufficient houses remains the Helma home construction AG. “The model the EnergieAutarkeHaus” by Helma for example Akkubauteile secure in the magnitude 2.70 x 0.80 x 0.80 M the excess solar energy. This surplus in the period from February – November wachstin the rule, only in the rest of the year, there is a risk of lack of power. The battery stores provide the necessary budget power for 21 days. The 162-square-foot House in Hanover provides the need for energy for example to 65% of solar collectors on the. A cheaper wood gasifying boilers supplies also used the budget.

The EnergieAutarkeHaus”is attached to the power supply. Currently, the House for 363.000 is offered. After a period of fifteen years the extra cost compared to the conventional model are likely to pay off and the Home Builder can rely on the free solar power. More innovative models for energy self-sufficient building offer also other home construction providers in Berlin and Brandenburg. The prefabricated house tribute to 165 “Hanlo for example added modern Bauhaus-style in a solar or photovoltaic system. The electricity produced here can fed directly into the power grid and used for the operation of a heat pump.