Energy Efficiency Calculation
In the current climate of rising energy costs and the fact that energy passports for buildings are, or will become compulsory, demonstrable energy-saving measures will contribute significantly to the value of a building.
If you are thinking about thermally renovating your property, you should not only consider the one-off investment costs and the yearly cost-savings they deliver.
The energy passport introduces more transparency and comparability in the real estate market. In future, owners will be able to use the energy passport as an advert for their building's energy efficiency, as is already the case with vehicles, fridges, washing machines etc. for years. Good energy efficiency will make it easier for both the sellers and buyers of buildings.
Specific annual energy demand
Often the question arises of what makes a house or flat "good" or "bad" in terms of energy balance. As a rule, it is difficult to provide any general answers for existing buildings. Nevertheless, it is relatively easy to calculate the specific annual energy demand which provides an initial index of energy-saving potential. However, this simple method fails to reveal whether, for instance, high energy demands are due to a building's poor physical state (inadequate insulation) or the rigours of a particularly harsh winter. Certain occupant habits and behaviour, such as windows left on permanent tilt, can waste significant amounts of energy. Nevertheless, the specific annual energy demand does provide an initial indicator of your house or flat's energy performance.
Energy Saving Calculation
If you want to take a more detailed look at a building’s energy balance, then several factors need to be considered, including such things as ventilation and transmission losses, hot water heating, energy input for heating, solar gains and technical losses.
With our facade calculation programme we offer a detailed programme for calculating transmission losses through the facade (facade = outside wall, windows and window connections to the wall) of a building. The calculation compares your facade with a “reference facade” (according to EnEV 2007) built to current state-of-the-art standards, with the results showing the difference between the two facades in terms of energy loss.
