District heating and cooling

District heating and cooling (DHC) is an integrative technology that can make significant contributions to reducing carbon dioxide emissions and air pollution while increasing energy security. A district heating network is a system that supplies the heat generated in a centralized plant to meet residential and commercial space and water heating requirements. A district heating scheme comprises a network of insulated pipes used to deliver heat, in the form of hot water or steam, from the point of generation to the end user.

District heating networks transport heat efficiently. Currently, they can be built in a distance of up to around 30 km from a generating plant and the distribution networks themselves can be hundreds of kilometres long. This is sufficient to distribute heat across cities, smaller communities and industrial areas. A network can easily be extended by simply adding more heat sources along the way. With respect to cooling, the DHC concept is implemented either through the distribution of chilled water or by using the district heating network to deliver heat for individual heat-driven chillers. DHC networks can distribute energy from various sources and integrate large scale storage while enabling the connection of several users, especially new buildings and refurbished buildings, with a decrease in the energy consumption of the district. 

List of projects where this technology is being implemented.

CITyFiED

The CITyFiED project aims to develop a replicable, systemic and integrated strategy to adapt European cities and urban ecosystems into the smart city of the future, focusing on reducing the energy demand and GHG emissions and increasing the use of renewable energy sources by developing and...

CITY-ZEN

CITY-ZEN aims to develop and demonstrate zero energy cities with a central role for citizens. The team of the project works together to achieve a future-proof grid, innovative heat and cold solutions and energy efficient buildings.

CELSIUS

To increase energy efficiency in EU, CELSIUS helps cities across Europe to develop secure, affordable and low carbon district heating and cooling solutions that form part of the city's wider energy system. The focus is on maximising the use of waste heat or secondary heat within a city by capturing...

BEEM-UP

BEEM-UP aimed to demonstrate the economic, social and technical feasibility of retrofitting initiatives, drastically reducing energy consumption in existing buildings, and paving the way towards massive market uptake. BEEM-UP involved building owners at three sites in France, Sweden and the...

SOLUTION

The SOLUTION project mobilised public/private resources to build showcases of energy self-sufficient communities in Austria, Croatia, Finland and Switzerland (together with an associated Slovenian community) with a strong potential for replication throughout Europe. SOLUTION was designed to respond...
List of demo sites where this technology is being implemented.

EU-GUGLE Site Tampere

Tampere is located on the banks of Tammerkoski rapids, between two lakes, Näsijärvi and Pyhäjärvi. It is the third biggest city and second biggest growth center in Finland, and the biggest inland city in the Nordic countries with 215,168 inhabitants. The EU-GUGLE demonstration takes place in...

CITyFiED Site Laguna de Duero

Laguna de Duero is one of the municipalities surrounding the metropolitan area of the city of Valladolid, the administrative capital city of the Castile and León region. This metropolitan area was established based on common urban and mobility problems defined by the spatial planning directive for...

CITyFiED Site Soma

Soma has a population of about 90,000 people and can be found in the Manisa province, Western Turkey. The town has grown around the lignite mining industry and the lignite-fired thermal power plant in the city. The pilot demonstrator district consists of a total gross area of 64,971 m2 (41,158 m2...

READY Site Aarhus

*Disclaimer: There is not sufficient information available for this demo site. Check this page regularly for updates.

SINFONIA Site Innsbruck

Innsbruck (Austria, 120,000 inhabitants) defined its 2025 Energy Plan back in 2009. In this context, and as part of SINFONIA, the city has selected its eastern district to demonstrate the large scale implementation of energy efficient measures, with the objective of achieving on average 40 – 50%...