Manual T*SOL basic 5.0 - Valentin Software

8 Calculations User Manual T*SOL
8.3 EnEV - German Energy Conservation Regulations
EnEV
You can calculate the annual yield of a solar system for a newly-built, purely residential building for the
verification procedure in accordance with (Erneuerbare Energien-Verordnung, German Energy
Conservation Regulations) EnEV 2009. This applies to both DHW supply systems and combination
system. You are provided with a solar yield comparison, calculated from
• a standard method of calculation as per DIN-V 18599 with standard parameters,
• a standard method of calculation as per DIN-V 18599 with planning values of the selected
system, and
• an annual simulation in T*SOL.
The resulting solar yield which is calculated can then be used in EnEV verification software.
Ł How to proceed:
1. Go to the EnEV dialog.
Then consecutively click on the symbols in the symbol bar and provide required information in
the input dialogs.
Building parameters
EnEV > Building Parameters
2. Enter the Building Type, as this is decisive for the hot water requirement (DIN V 18599-10, table
3).
3. Enter the Geometry of the building: the Heated Living Space, the Number of Storeys, and the
Storey Height. If the Storey Height is greater than 4 meters, a warning is shown because the
calculation of transfer and distribution losses in heating systems is only valid for rooms of up to
4 m height. This is due to the restriction to residential buildings.
4. Enter the Characteristic Length and the Width in accordance with DIN V 18599-5 appendix B.
The pipe lengths required for calculating the transfer and distribution losses are calculated from
this information.
The derived parameters are needed for the further standard calculations. The Net Footprint,
above all, is a key reference parameter (DIN V 18599-10, table 3, note a).
page 77 / 104 Dr. Valentin EnergieSoftware GmbH