PV powered cascade heat pump installed in the Østerby district

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In Høje-Taastrup municipality a new heat pump system at the shopping mall CITY2 has been installed. The system supplies the new low-temperature district heating network in Østerby district demo case, including business and nearby hotels, recovering the waste heat from the cooling system.
Video: COOL DH in Høje-Taastrup

A smart energy system coming to place in Høje-Taastrup

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In this video you will see how low-temperature district heating and large heat pumps are an essential element in Høje Taastrup District Heating and Høje-Taastrup Municipality's collaborative journey towards an efficient, flexible and smart energy system.

New innovative main line with heat recovery

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On the demonstration site in Høje-Taastrup municipality a new type of multimedia pipe system with heat recovery has been installed in the distribution network. The product developed shows that it is possible to integrate collector pipes in standard district heating pipes to recover heat and minimise heat loss.
The image shows how the installation of the LTDH-service pipes in Osterby are close to the users' buildings in order to reduce the length of the network and consequently the heat losses.

From traditional DH to LTDH in Østerby

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A new low-temperature network has been designed to upgrade the old and obsolete traditional district heating-network in Høje-Taastrup. This report provides information about the final design and the implementation of the low-temperature district heating network and can be used as a guideline of the installation process for future similar projects.
New type of substation

New type of substation to meet the requirements of LTDH

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The transition to low-temperature supply in district heating networks requires new technical solutions to meet the heat requirements of the consumers and guarantee their safety. The new distribution system at the COOL DH demo site in Høje-Taastrup does just that!

LTDH-district heating going live with valuable lessons learned – COOL DH newsletter #3

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We have entered a new decade and 2020 is an important year to make sure that we start phasing out fossil fuels more quickly than ever before. One of many ways to face this challenge is to reduce the consumption of fossil fuels in heating buildings.…
Picture of participants at panel debate on energy restructuring in Brussels.

COOL DH mentioned at EU panel debate on energy restructuring

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As part of the European Week of Regions and Cities, the Greater Copenhagen EU Office organised a panel debate on energy restructuring in collaboration with five other regional offices from Poland, Spain, Sweden, Belgium, Ireland and Germany. Marie-Louise…
View from the roof of the spectacular Amager power plant in Copenhagen.

Joint workshop for COOL DH and Upgrade DH

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An innovation workshop was held in Copenhagen on 9th and 10th of October with participants from the two EU projects COOL DH and Upgrade DH. One main purpose of EU projects is to exchange knowledge across the borders. During a workshop combined…
COWI A/S

Technical specifications for substation solutions for single family units

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This report aims to give an overview of the technical solutions that fulfil the energy and the safety requirements for domestic hot water systems in low-temperature district heating networks.
Emanuele Zilio

New design concepts for optimisation of LTDH distribution systems

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In this report you will learn about the design process of a low-temperature district heating network, highlighting the design factors that lead to reduction of heat losses in the distribution pipes. To demonstrate the technology, two real-scale demonstration projects are described in Høje-Taastrup, Denmark and in Lund, Sweden. Emanuele Zilio, engineer at COWI A/S, gave a short interview to summarize the report