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Welcome to the Celsius Wiki
- a District Energy knowledge resource
You are welcome to contribute to the 323 articles presently here!

Go to Introduction of District Energy Go to Technical Toolbox Go to Socio-Economic Toolbox Go to Case Studies Go to CELSIUS Network

Celsius Cities

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Read more about the Celsius Cities and the Celsius Network

The Celsius Vision

Imagine an intelligent, competitive and liveable city. Imagine a resource-efficient city with smart heating and cooling. This is your city – a Celsius city!

Celsius City has established an intelligent heating system covering virtually all the households and commercial buildings in the appropriate high density areas of the city and an energy efficient district cooling system for its commercial customers. These systems make use of a range of excess heat sources all created within the city during the course of an average operational day, for example from various industrial and datacentre activities, heat extracted from sewage and bio-based heating. Celsius City not only consumes much less fossil fuel generated energy than a traditional European city; but it also plays a fundamental role in supporting the resilience and security of the electricity network by effectively utilising existing network capacity for connecting new distributed generation and for providing grid balancing. This becomes more relevant via thermal storage, when excess renewable electricity, generated for example by wind turbines, is being supplied into the grid.

The community, including citizens, politicians, industry and utility as well as other stakeholders, see the Celsius City vision take form and recognise and promote the advantages of working together towards a common goal: Improved air quality, reduction of energy use, maximising the use of various kinds of waste, excess, energies and resources. Not to forget all the green business opportunities and the promotion and increased attractiveness of the city as well as security of energy supply.

The Celsius Wiki

The Celsius Wiki aims to be a source of knowledge and inspiration for cities interested in developing district energy (district heating and cooling) solutions. It addresses cities which are just beginning to implement small-scale district heating and cooling networks as well as cities with large established systems endeavoring for even smarter and more efficient solutions.

The wiki is created within the EU project Celsius, sharing experiences and research from the project partners and it is continuously being developed in cooperation with the growing CELSIUS Network.

The Celsius Wiki consists of five main elements: CELSIUS icon toolbox roadmap.png Introduction to District Energy provides an overview and basic strategies for planning and developing a system. The Technical and Socio-Eonomic toolboxes contain more in-depth knowledge and tools; the CELSIUS icon toolbox technical.png Technical Toolbox about technologies and recent research from efficient supply to smart use and optimised system integration; the CELSIUS icon toolbox social.png Socio-Economic Toolbox about end-user engagement, business models and policy. Ikon demonstrators.png Case Studies share experiences and give inspirations from demonstrators included in the Celsius project and case studies throughout the Ikon stader.png CELSIUS Network.

If you are looking for a specific topic you can also use the search field in the upper right corner or use the Categories. All articles are tagged to at least one category and by following these at the bottom of each article related information can be found.

New articles

A new Celsius talk presenting the THERMOS, HOTMAPS and PLANHEAT projects.
An assessment approach to analysing the case studies in the ReUseHeat project.
A new Celsius talk on the H2020-funded ReUseHeat project.
A Celsius talk on Gothenburg's Fossil-free Energy Districts project, FED.
A discussion paper and a preparatory theme paper for the ReUseHeat project, which has a strong emphasis on the bankability of projects.
A ReUseHeat case study.
A ReUseHeat case study.

The Celsius Initiative manages the Celsius Wiki with support from EIT's Climate KIC and the Swedish Energy Agency.

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System for distribution of cooling in a district or city

System for distribution of heating and cooling in a district or city

System for distribution of heating in a district or city