Technical solutions

Data centers, the new way of heating districts?

Data centers, the new way of heating districts?

Focus of the text The text describes a new way of repurposing heat thanks to "liquid cooled data centers". The method makes it ... read more

Minimizing cost and CO2 integrating two solutions (ground source heat pump and district heating and cooling)

Minimizing cost and CO2 integrating two solutions (ground source heat pump and district heating and cooling)

Focus of the text The text describes a new solution with the potential to reduce the cost and CO2 production of energy companies. This ... read more

Increased energy optimisation using low temperature convectors

Increased energy optimisation using low temperature convectors

A new method of low-temperature heating system makes it possible to reduce energy use by at least 30% and shortens the payoff time for housing cooperatives. read more

Local low temperature networks for heating and cooling

Local low temperature networks for heating and cooling

In the Netherlands the KoWaNet project has tested local low temperature networks in order to make heating and cooling of Dutch buildings carbon neutral. read more

Digitalisation and heat pumps – next step towards fossil free energy systems

Digitalisation and heat pumps – next step towards fossil free energy systems

The digitalisation process in society means new business models for heat pumps as well as the need for further development of integrated solutions. European Heat Pump Association, EHPA has provided an overview on the subject. read more

How to utilize district heating for cooling in a smart way

How to utilize district heating for cooling in a smart way

Energy providers and property owners can both benefit from an innovative cooling concept based on the utilization of the flexibility in district heating systems, and in particular by harvesting excess heat from a cooling process. A Berlin demo case is presented from the Flexi-Sync project. read more

Heat pumps in district heating systems

Heat pumps in district heating systems

The combination of district heating and heat pumps are foreseen to have a key role in the future district heating systems. This article looks at the integration of large-scale heat pumps in district heating, which can help balancing the power grid when the production of electricity from intermittent renewable energy sources fluctuates. read more

Ownership and district heating prices: The case of an unregulated natural monopoly

Ownership and district heating prices: The case of an unregulated natural monopoly

This study is investigating how Swedish energy prices are influenced by the owner of the energy network - a private or a municipal company. read more

The impact of refrigeration technology on climate, economy and health

The impact of refrigeration technology on climate, economy and health

This article describes the refrigeration industry from an environmental point of view and argues for phasing out refrigerators with gases that contribute to global warming. read more

Friendly Sam – Tools for modelling and optimising energy systems

Friendly Sam – Tools for modelling and optimising energy systems

This text describes Friendly Sam, a toolbox developed to formulate optimisation-based models of energy systems. read more

Transition strategies for delivering low carbon district heat: 6 guides to put you on the right track

Transition strategies for delivering low carbon district heat: 6 guides to put you on the right track

The HeatNet NWE project aims to introduce 4DHC (4th generation District Heating) in North West Europe. Here are six guides from the project. read more

Improving energy efficiency – A handbook on DH upgrading paves the way

Improving energy efficiency – A handbook on DH upgrading paves the way

This handbook from the Upgrade DH project describes technical and non-technical approaches for upgrading existing systems. read more

How to optimise district energy flexibility

How to optimise district energy flexibility

This article is based on a webinar within the project Flexi-Sync and describes the approach taken in the project to optimise district energy flexibility. read more

Database for interactive webtools and GIS maps

Database for interactive webtools and GIS maps

This database collects useful web applications and interactive maps from around the world to be used for the study of sustainable Energy Systems. read more

Utility-side optimisation: The art of delivering the right temperature at the right time

Utility-side optimisation: The art of delivering the right temperature at the right time

This article presents three methods for optimising the operation of a District Heating/District Cooling network, focusing on the utility side of the network. read more

Thermal Energy Storage

Thermal Energy Storage

This article presents an overview of Thermal Energy Storage (TES), which can help balance energy demand and supply over time - and reduce CO2 emissions and costs. read more

Catching the sunlight: Solar heat for cities

Catching the sunlight: Solar heat for cities

The IEA publication Solar Heat for cities: The sustainable solution provides information about solar heating for cities and showcases nine solar district heating systems built in Europen cities. read more

How to plan and optimise production of district heat

How to plan and optimise production of district heat

This article describes different ways to optimise the production and supply of district heat and cooling, from smaller to larger optimisations. read more

Don’t waste the waste water: Clean energy from sewage

Don’t waste the waste water: Clean energy from sewage

Sewage water can be used to recover waste heat for heating or cooling buildings, and the use of waste water has high energy potential. read more

Excess heat from datacentres: Let your Insta-selfies heat your home

Excess heat from datacentres: Let your Insta-selfies heat your home

This article describes strategies to improve energy efficiency in data centres - such as using waste heat for district heating systems. read more

Waste-to-Energy: Making use of useless waste

Waste-to-Energy: Making use of useless waste

In this text you can learn about waste incineration and Waste-to-energy (WtE). It also describes the method's role in recycling and its part in a circular economy. read more

Case studies of Low Temperature District Heating systems

Case studies of Low Temperature District Heating systems

This text summarizes 10 case studies on low temperature district heating (LTDH) systems and presents the resulting measured data. read more

High Temperature District Cooling technology

High Temperature District Cooling technology

High temperature district cooling (HTDC) refers to district cooling systems operating at higher temperature levels than traditional systems. Using higher temperatures has many potential benefits in terms of reduced energy use, reduced emissions and reduced costs. read more

Webinar: Low temperature district heating

Webinar: Low temperature district heating

Low temperature district heating can prove to be an important part in also keeping the globe’s temperature low. This webinar presents some of the opportunities and challenges cities may encounter in their endeavour towards a sustainable and efficient low temperature district heating systems. read more

Distribution Technologies for LTDH/HTDC

Distribution Technologies for LTDH/HTDC

This article presents different aspects of distribution-side technologies for LTDH and HTDC. read more

Utility-side storage

Utility-side storage

There are big advantages with short term thermal storage (TES) to cut daily peaks in the heat load in DH/DC systems. read more

Strategies for decreasing peak loads and energy use

Strategies for decreasing peak loads and energy use

This article describes the main techniques adopted for decreasing peak loads and manage the demand side of a DH or DC system. read more

Geothermal heat – remnants of the Big Bang

Geothermal heat – remnants of the Big Bang

Ground source heat pumps (GSHP) and deeper geothermal heat can provide temperatures high enough for conventional DH. read more

Biomass for the masses

Biomass for the masses

Biofuel CHP plants have the potential to be used as a renewable peak plant, during times of low supply or high demand. read more

Strategies and concepts for LTDH and HTDC

Strategies and concepts for LTDH and HTDC

DH systems operating at lower temperatures than conventional systems enable utilizing heat sources with low temperature like waste heat. read more

District cooling in Helsingborg, Sweden

District cooling in Helsingborg, Sweden

In Helsingborg, an absorption chiller at Västhamnsverket has been installed by Öresundskraft in order to deliver district cooling. read more

Solar

Solar

This article describes how solar energy can be harvested and used to supply district heating networks. read more

Heat recovery from the London Underground in Islington, United Kingdom

Heat recovery from the London Underground in Islington, United Kingdom

Excess heat from the London Underground provides district heating in Islington, where LO2 and LO3 are two of London's demonstrators. read more

Excess heat recovery from sewage water in Cologne, Germany

Excess heat recovery from sewage water in Cologne, Germany

The demonstrators in Cologne recover heat from sewage water and use it in decentralized local heating networks. read more

Webinar: Using buildings as thermal energy storages – Kvillebäcken demo

Webinar: Using buildings as thermal energy storages – Kvillebäcken demo

The utilisation of residential buildings as thermal energy storage has been implemented in a pilot project i Kvillebäcken in Sweden. read more

Webinar: Operations management in district heating

Webinar: Operations management in district heating

Göteborg Energi presents the different types of personnel, the graphical IT tools, and how they can be used for diagnostics of failures. read more

Webinar: Optimising DH systems at building level

Webinar: Optimising DH systems at building level

Innovative solutions for buildings through optimisation of substations, and recommendations for regulating radiator temperature. read more

Webinar: OPTi-mising district heating solutions

Webinar: OPTi-mising district heating solutions

The OPTi project aims to optimizing the architecture and control of DHC systems through advanced modelling, analysis and control. read more

Webinar: IT solutions for demand side management

Webinar: IT solutions for demand side management

Innovative IT solutions give the end-users the possibility to understand, monitor, predict and control their energy consumption. read more

Webinar: Integration of heat, power and intermittent renewables

Webinar: Integration of heat, power and intermittent renewables

With the evolution of electricity/power sources and district energy systems, it is becoming easier to increase the interaction. read more

Webinar: District heating to white goods

Webinar: District heating to white goods

Involvment of the tenants in Gårdsten in Gothenburg has made it possible to install district heating to white goods. read more

Webinar: Finding the win-win situation of recuperating excess heat

Webinar: Finding the win-win situation of recuperating excess heat

This webinar focuses on surplus heat recuperation from a public transportation system, and from a waste incineration plant. read more

Webinar: Seasonal and short-term storage

Webinar: Seasonal and short-term storage

Thermal energy storage (TES) can balance the demand and supply during peak periods, as well as maximising system efficiency. read more

Webinar: Short-term storage in buildings

Webinar: Short-term storage in buildings

This presentation describes the long-term project by Gothenburg Energy on how to go ahead with short-term storage in buildings. read more

Excess heat from cooling at Grundfos in Bjerringbro, Denmark

Excess heat from cooling at Grundfos in Bjerringbro, Denmark

The pump manufacturer Grundfos and Bjerringbro Varmeværk, invested in three heat pumps to co-produce heat and cooling. read more

Excess heat from mink coat storage in Copenhagen, Denmark

Excess heat from mink coat storage in Copenhagen, Denmark

The excess heat from Kopenhagen Furs large cold storage is sent to the local district heating company, Glostrup Varme. read more

Energy optimization in a supermarket in Høruphav, Denmark

Energy optimization in a supermarket in Høruphav, Denmark

Excess heat from the refrigeration system of the Høruphav supermarket is delivered to Sønderborg Fjernvarme. read more

Excess heat from a vegetable market, Denmark

Excess heat from a vegetable market, Denmark

Low-temperature heat from district cooling is used to produce district heating to Copenhagen Markets with a large cooling demand. read more

District heating from super supermarkets, Denmark

District heating from super supermarkets, Denmark

This project explores the possibilities of utilizing supermarket refrigeration systems as sources for district heating networks. read more

Exploiting excess heat from a converter station in Endrup, Denmark

Exploiting excess heat from a converter station in Endrup, Denmark

An international connection between Denmark and the Netherlands called COBRA cable deliver excess heat to the local district heating network. read more

Co-production with a gas engine driven heat pump in Tønder, Denmark

Co-production with a gas engine driven heat pump in Tønder, Denmark

40% of the total heat production in Tønder can be produced by the two parallel mechanical heat pumps. read more

Excess heat from sewage in Hamburg and Singen, Germany

Excess heat from sewage in Hamburg and Singen, Germany

Multiple heat recovery projects from sewage water exist in Germany. read more

Energy recovered from sewage water in Sandvika, Norway

Energy recovered from sewage water in Sandvika, Norway

The heat pump facility called Sandvika Energisentral utilizes sewage water for both heating and cooling purposes. read more

Heat pumps using waste water in Gothenburg, Sweden

Heat pumps using waste water in Gothenburg, Sweden

Four heat pumps extract excess heat from a waste water treatment plant, which is delivered to the local district heating network. read more

Industrial waste water used for district heating in Rødkærsbro, Denmark

Industrial waste water used for district heating in Rødkærsbro, Denmark

Rødkærsbro Fjernvarmeværk connected the Arla dairy with the district heating network, by the establishment of two sets of pipelines. read more

Waste water as heat source in Kalundborg, Denmark

Waste water as heat source in Kalundborg, Denmark

In Kalundborg, a 10MW electric heat pump is installed, utilizing heat from waste water to produce district heating. read more

District heating in Castelnuovo del Garda, Italy

District heating in Castelnuovo del Garda, Italy

The district heating network in Castelnuovo del Garda is powered by residual heat recovered from Air Liquide. read more

Excess heat from lignite mining in Bergheim, Germany

Excess heat from lignite mining in Bergheim, Germany

The thermal potential of sump water from open pit mining is used to supply heat to nearby communities through district heating networks. read more

Industrial residual heat and transmission in Leiden, Netherlands

Industrial residual heat and transmission in Leiden, Netherlands

The project Warmtelevering Leidse Regio (WLR) transmiss industrial residual heat from the port of Rotterdam to the greater Leiden area. read more

Open District Heating in Stockholm, Sweden

Open District Heating in Stockholm, Sweden

Open District Heating offers data centres, supermarkets and other businesses that generate excess heat to sell heat at an open marketplace. read more

Excess heat from a datacentre in Val d’Europe, France

Excess heat from a datacentre in Val d’Europe, France

A new heating system near Val’dEurope outside Paris is utilizing the excess heat from a local data centre. read more

A datacentre supplies local heating in Mäntsälä, Finland

A datacentre supplies local heating in Mäntsälä, Finland

A heat pump capable of supplying 1500 homes extracts heat from a nearby data centre in Mäntsälä. read more

Heat recovery from a local paper mill in Skjern, Denmark

Heat recovery from a local paper mill in Skjern, Denmark

Skjern Papirfabrik invested in a large heat pump to make use of low-temperature waste heat from the paper drying process. read more

Excess heat from hospital chillers in Viborg, Denmark

Excess heat from hospital chillers in Viborg, Denmark

Excess heat from chillers from the hospital is distributed to the local district heating network using a heat pump solution. read more

Heat recovery at a hospital in Budapest, Hungary

Heat recovery at a hospital in Budapest, Hungary

Waste water from the sewage system is used for both heating and cooling purposes in Budapest. read more

District heating from a crematory in Aalborg, Denmark

District heating from a crematory in Aalborg, Denmark

The local district heating company in Aalborg receives excess heat from the crematory after the installation of a new filtration system. read more

Webinar: Heat-pumping the future of district energy

Webinar: Heat-pumping the future of district energy

The main drivers and barriers for the deployment of heat pumps in district energy systems are explored in this webinar. read more

New focus on expanding a district heating network

New focus on expanding a district heating network

How should an existing grid be expanded within the local conditions in the best possible way? read more

Hot cooling and cool heating: Demand-side technologies for district heating and cooling

Hot cooling and cool heating: Demand-side technologies for district heating and cooling

Building or adapting space heating systems to suit low-temperature heat supply is a matter of design parameters. read more

Making the underground cool again

Making the underground cool again

Installation in the London Tube - a new system of heat exchangers and a heat pump allows suitable temperature all year round. read more

One grid to connect them all

One grid to connect them all

Synergies explored in an open district heating network, where supply and demand of heat and cold are optimized. read more

Less oil, less noise, less money

Less oil, less noise, less money

District heating to ships is a win-win investment, with less pollution. read more

An un-tapped resource

An un-tapped resource

Waste heat could provide for the entire building stock in Europe. read more

The river provides indoors cooling

The river provides indoors cooling

A big multi-functional building in Rotterdam is cooled by the water of the river that runs through it. read more

Free cooling from water

Free cooling from water

Bring sustainable chill in – and chill out. Cooling with running water in nature is a sustainable alternative. read more

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