Energy-oriented refurbishment of existing buildings
Energetic standards for existing buildings
For existing buildings owned by the state uniform standards regarding the energy efficiency have been defined, aiming at full compliance with the applicable Energy Saving Regulations (EnEV) when these buildings are fundamentally reconstructed and refurbished. Administration buildings rented by the state government are also subject to the energy efficiency standards for new buildings.
CO2 Reduction and Energy Efficiency Program
For the energetic refurbishment of existing buildings the CO2 Reduction and Energy Efficiency Program has been introduced. The program was launched in 2012 and will be running until 2017, covering a total volume of 160 million €. On the basis of this program real estate is refurbished in terms of energy efficiency, contracting measures are implemented and energy monitoring systems are established for energy-intensive buildings. At present, more than 60 construction activities are being planned or already carried out.
The target is saving about 200,000 tons of CO2 over a period of 30 years.
As part of the COME program, also old heating systems based on fossil fuel are modernized. If technically and economically possible, the systems are converted in such a way that they work on the basis of renewable energy sources, such as wooden pellets or woodchips. In some buildings thermal power stations or solar systems will be installed for heat generation, so that the heat generating performance can be reduced by an average of 25 percent. About 39 percent of the heating energy demand will be covered by renewable energy sources. The CO2 reduction is expected to amount to about 659 tons per year.