Energy-independent House

Labels: Romania

EnergysavinghouseBirta Group Company and the German Chain Kago have developed energy-independent buildings. The construction is almost spherical and uses natural materials, especially wood. In terms of thermal energy, the building is equipped with solar collectors that provide heat and hot water. Electricity is obtained through the photovoltaic panels.

Based on the calculations, a house of between 120 and 200 square metres, accommodating two adults and two children with extra guests at the weekend, requires 2.5 KW, which is supplied by the panels. The panels are able to provide heat even when there is no sun. The energy produced during the day is stored in a battery and can be used at night. The house can also be equipped with alternative energy systems such as coal, gas or pellets.

The solar collectors are made in Germany and can produce 50 to 60 liters of hot water per hour. They function throughout the year, as a so-called four seasons energy concept.

History of the companies:

Kago has 35 years’ experience heating installation in Germany and Europe; and Birta has 17 years’ experience on the Romanian market.

Possible effects:

The shape of the house can be adapted to the clients’ wishes, but a sphere is the most efficient as it makes maximum use of natural light.

The panels heat the water during winter, even at minus 30°C. Costs can fall by 50 percent in the winter and by 100 percent in summer.

Barriers to eco-innovation:

–         The cost of such a house is relatively high, at about EUR 50,000, although this depends on the degree of insulation and the installations required by the client.

–         The price of the heating technology starts from EUR 4,000, and the photovoltaic panels cost from EUR 3,500.

Drivers of eco-innovation:

–         The price of a solar collector is approximately EUR 500.

–         Diminished value for the invoice

Further Information

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Tags: Romania