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The planning of your heating network 4.0 energy concept begins with the BAFA eligible feasibility study.


The foundation of your planning

The German Federal Office of Economics and Export Control (BAFA) funds feasibility studies with up to 60 percent of the eligible expenses (funding module I) and a maximum funding amount of 600,000 euros.

A fourth-generation heating network is an innovative heating network with a predominant share of renewable energies. The heat networks distribute heat either as usable heat of about 60 °C (with a low return temperature of about 30 °C) or as so-called anergy of about 20 °C to 0 °C as a heat source for heat pumps.

As part of the feasibility study, we are developing and comparing various innovative concepts for grid-based heat supply  technically and economically. At least 50% of the heat demand shall be provided by renewable energies, with a maximum of 25% biomass. The energy supply should be designed efficiently and contain forward-looking components, such as intelligent use of sector coupling (heat, cold, electricity) and a monitoring concept.

Our feasibility studies offer you planning expertise with utmost ecological and economical benefit and application-specific elaborations, e.g. on:

  • Possible innovations in the heat network system
  • Target temperature level of the network flow for all variants to be investigated
  • Identification of heat sinks (connections)
  • Calculation of the load curve
  • Dimensioning of heat sources
  • Use of heat storage facilities
  • Climate compatibility of the energy sources used
  • Legal permissibility
  • Sector coupling and electricity market efficiency
  • Efficient design of the house transfer stations
  • Concept of online monitoring
  • Scheduling


On this topic, also take a look at our web seminar on "Introduction to the planning of anergy networks".  Dr.-Ing. Bernd Vogl discusses cold local heating networks together with Dipl.-Ing. Hubert Graf from GRATEC GmbH and Christian Fritz from GF Piping Systems GmbH. Here you can watch the recording from 03 February 2022 - it is in German only without subtitels: