Energy Consulting from A to Z
Here you will find clear explanations of the most important terms from the world of energy consulting. Click on a letter to jump to the terms.
A
System Technology: Refers to technical systems such as heating, ventilation, or hot water that contribute to a building's energy supply.
Replacement Obligation: According to the GEG, certain heating boilers must be replaced after 30 years.
B
BAFA Funding: Financial support from the Federal Office for Economic Affairs and Export Control for energy renovation measures.
Blower Door Test: Airtightness measurement to determine heat losses through leaks.
Condensing Technology: Modern heating technology that uses condensation heat in addition to heating heat.
D
Dena: The German Energy Agency is the central contact for energy transition topics in Germany.
Feasibility Study: Investigation of the economic and technical feasibility of renovations.
E
Energy Performance Certificate: Documents the energy consumption or demand of a building.
Energy Consulting: Professional advice on reducing energy consumption and optimizing building technology.
EnEV: Former Energy Saving Ordinance, replaced by the Building Energy Act (GEG).
G
GEG: The Building Energy Act unifies EnEV, EEWärmeG, and EnEG.
K
KfW Funding: Grants or loans from the Kreditanstalt für Wiederaufbau for energy-efficient buildings.
Cold Bridge: Outdated term for thermal bridge through which energy can escape.
S
Renovation Roadmap (iSFP): Long-term, individual plan for the energetic improvement of a building.
Smart Home: Networked, automated systems to increase efficiency and comfort in the household.
T
Thermography: Thermal imaging to display energetic weak points on the building envelope.
U
U-Value: Indicates how much heat is lost per square meter and Kelvin through a component. The lower, the better.
W
Thermal Bridge: Spots on a building where more heat is lost than in adjacent areas.
Heat Pump: Heating system that uses environmental heat (e.g., from air or ground) to heat the building.