The new energy saving regulations

For an environmentally friendly energy balance sheet.

On February 1st 2002 the first version of the energy-saving regulations (EnEV) came into force and thus brought together the thermal insulation and the heating system regulations. The two main aims of the EnEV: to lower energy consumption and reduce greenhouse gases, because in the past 25 years alone the worldwide energy consumption has risen by 60 %. The radical containment of CO2 output is particularly important for the Earth's atmosphere: carbon dioxide is generated among other things by the combustion of fossil fuels such as fuel oil and gas and makes up more than half the greenhouse gas effects caused by human beings.

New freedom in planning.
With the help of the energy-saving regulations the energy requirement of buildings is intended to fall - for new buildings by around 30 %. In the overall consideration of buildings the EnEV includes both the systems technology for heating, ventilation and hot water, and also losses, which arise due to the extraction, conversion and transport of a fuel. Individual factors can be offset against each other and open up new freedom in planning for architects and building contractors. This also applies to the use of ventilation systems for which the building contractors receive a bonus in the evaluation.