Demand-Based Certificate
Theoretical calculation of energy demand
- Timeframe
- 1–2 weeks
- Price
- Cost depends on the project, from €340
Rating independent of individual heating habits
The demand-based certificate is a type of energy performance certificate that calculates a building’s theoretical energy demand. It is based on the dimensions of the building, the thermal building envelope and a technical analysis of the building fabric, the insulation and the heating and ventilation systems – regardless of the occupants’ actual consumption.
Until the end of 2026, a demand-based certificate is mandatory for residential buildings with up to four residential units whose building permit application was submitted before 1 November 1977 – unless the building already met the standard of the 1977 Thermal Insulation Ordinance (Wärmeschutzverordnung) on completion or was later modernised to at least that standard. From 1 January 2027, the demand-based certificate will be mandatory for all non-residential buildings; for residential buildings, owners can then choose between a demand-based and a consumption-based certificate.
This document gives buyers and tenants guidance on a building’s energy efficiency and highlights potential energy-saving measures.
Your benefits
Interested in this service? Contact me to arrange a consultation.
Independent of occupant behaviour
Detailed analysis of the building fabric
Precise assessment of energy efficiency
Sound basis for renovation measures
Step by
step
Engagement
Clarifying your requirements
On-Site Visit
Recording the building’s current energy status
Issuance
Preparing the demand-based energy performance certificate
Handover
Printing and handover to the homeowners. The energy performance certificate is valid for 10 years
Recommendation
When renovation work is planned, it is advisable to apply for the individual renovation roadmap (iSFP) together with the demand-based energy performance certificate in order to benefit from the funding programmes: with the iSFP, the eligible costs double for many individual measures, and an iSFP bonus of 5 percentage points is also possible. For new builds, I prepare the energy compliance verification in accordance with the GModG (formerly GEG) during the planning phase; in North Rhine-Westphalia (NRW), it must be available at the latest when the start of construction is notified. Once the building has been completed, the final demand-based certificate is issued
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Get in
touch
Do you have questions or would you like to make an appointment? Get in touch with me! Please note that consultations are held in German or Turkish.
Energie NT
Siekkamp 65, 33659 Bielefeld
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