IEA DHC Annex XIII Project 02: MEMPHIS 2.0 - Advanced algorithm for spatial identification, evaluation of temporal availability and economic assessment of waste heat sources and their local representation

The identification and integration of waste heat sources is a key measure towards the decarbonisation district heating networks (DHN). Aim of MEMPHIS 2 is to develop an improved algorithm for identification of different current and future waste heat sources; including time relations of the heat emitted and techno-economic details as well as the further development of the online waste heat explorer.

Short Description

The integration of waste heat into district heating networks (DHN) is a key measure towards decarbonisation; DHN can act as a buffer between supply and demand as well as a thermal bus.

However, one challenge is the extensive identification and evaluation of available waste heat sources on local scale, including waste heat from industry, service sectors and sewage systems.

In ANNEX XII the project "MEMPHIS" was completed successfully. Within "MEMPHIS" a methodology was developed to access information about waste heat from industrial and service sectors as well as sewage networks by using publicly available open data. The methodology localizes the potentials with spatial resolution. Within the project an online evaluation tool called Waste Heat Explorer was developed which visualises existing results and offers the possibility to enter further waste heat potentials of companies online.

"MEMPHIS" was complemented by an evaluation of relevant policy and regulatory issues of relevance to low-grade waste heat recovery. A market maturity assessment is also presented which considers key policy / legislation, technical and commercial maturity. The previous project was focusing on the three example countries Austria, Germany and the United Kingdom.

The "MEMPHIS 2.0" project builds upon previous research from the project partners and other researchers in the DH sector as well as upon "MEMPHIS" project and focusses on the potential and feasibility of supplying urban areas with lowgrade waste heat.


Austria, Germany (Operating Agent), Italy

Contact Address

Project partner

Ralf-Roman Schmidt
AIT Austrian Institute of Technology GmbH
Mobile: +43 (0) 664 235 19 01