Skip to main content

The planning of your energy concept for a heating network 4.0 according to German Bundesförderung für Wärmennetze (BEW) begins with the BAFA eligible feasibility study.


The foundation of your planning

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

A heating network according to BEW is an innovative heating network with a share of 75% renewable energies (for new networks) and a maximum of 10% fossil boiler heat (no coal). The heat networks distribute the heat either as useful 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.

Within the framework of the feasibility study, we are developing and comparing various innovative concepts for the grid-based provision of heat - both technically and economically. At least 75 % of the heat demand should 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, cooling, electricity) and a monitoring concept.

The federal government promotes feasibility studies for new heat grids and transformation plans for the conversion of existing grids to renewable energies and waste heat. In addition, there is the possibility of subsidising investments and in some cases even operating costs if the measures described in the feasibility studies and transformation plans are implemented.

Our feasibility studies provide you with planning expertise with utmost ecological and economic benefits and application-compliant 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: 

Here you can find the recording from 20 October 2022: