District heating substations - Worshop 73 on Eco-efficient Substations 

Heating is the largest single energy end-use in Europe. It is responsible for approximately 50% of total final energy consumption. District heating (DH) systems provide heating for a wide range of customers, from residential building to agricultural sectors, including commercial, public and industrial customers.

There are more than 7000 DH systems in Europe, currently supplying more than 10% of total European heat demands with an annual turnover of €25-30 billion and 2 EJ (556 TWh) heat sales. Market penetration of district heating is unevenly distributed, being close to zero in some countries while reaching as high as 70% of the heat market in others.

The benefits of district heating and district cooling are most apparent in areas with high density energy demands. In the European Union some 73% of the population live in cities, expected to rise to an estimated 80% by 2030. At present 69% of total primary energy demands are concentrated in urban areas.

Nowadays, the substations for residential buildings and offices are in most cases handicraft works.
Through agreeing on harmonising a number of features in district heating substations, the district heating industry will be able to produce in series district heating substations with a significantly reduced handicraft parts. By achieving a harmonisation of district heating substations, the industry will be able to manufacture safer, more environmentally friendly cost-competitive equipment.

CEN Workshop status

The workshop is now closed - 2016-01-14

CEN Workshop Agreement

This Workshop was proposed by the members of the working group 'Eco-efficient substations' within the DHC+ Technology Platform.
The objective of this Workshop was to agree on a set of recommendations focusing on technical specifications, environmental aspects and testing procedures of district heating substations within district heating systems.
The deliverable is a CEN Workshop Agreement on internationally accepted rules on manufacturing district heating substations, in accordance with the state of the art and based on the actual operation and future prospects. These rules shall be applicable to all substation technologies and be brand neutral.
The deliverable CWA gives priority to the three so called work items: technical functional objectives, environmental aspects and testing procedures. The testing procedures cover technical functions and environmental values.
The CWA gives the most effective overall solutions for various parts of the customer installation. Euroheat & Power already developed 'Guidelines for district heating substations' (freely available through the EHP website). These guidelines served as starting point for the CWA document.

Workshop's officer

Workshop Chairperson
Mr Gunnar Nilsson
Göteborg Energi AB

Workshop Vice-Chairperson
Mr Nicolas Février
Secretary to the DHC+ Technology Platform
Workshop Secretariat
DS – Danish Standards
Mr Henryk Stawicki
CEN-CENELEC Management Centre
Andrea Nam
Programme Manager