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 demo sites where this technology is being implemented.

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%...

GrowSmarter Site Cologne

Situated on the banks of the river Rhine, Cologne is the fourth largest city in Germany and home to key players in business and industry. The city is committed to the European Union’s goal of achieving a 20% reduction in greenhouse gas emissions, a 20% increase in the share of renewable energy and...

GrowSmarter Site Barcelona

Voted European Capital of Innovation 2014, Barcelona is a vast metropolitan hub with a long tradition of industry and entrepreneurship. Barcelona City Council encourages strategic initiatives aimed at generating international collaboration and promoting a global and forward-looking vision to...

BEEM-UP Site Alingsas

Brogården in Alingsås is an area of multi-dwelling buildings built in 1971-1973. The area comprises a total of 300 flats, divided into 16 houses with 2-4 floors each. All flats have a balcony or a patio. The Brogården area is currently undergoing an extensive renewal, which started in the spring of...

SCHOOL OF THE FUTURE Site Ballerup

The part F of Hedegaards School, with a building age of more than 35 years, was in need of refurbishment as the roof and the windows were leaky and the thermal insulation of the walls and the attic was insufficient. The electric lighting installations in the corridors were technically obsolete,...