Welcome to the Celsius Toolbox

a District Energy Knowledge Resource

The Celsius Toolbox 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 Toolbox started as a wiki 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 Toolbox consists of four main elements, read more below.


Business & Finance

  Financial instruments and business models and policy are the key to success.

Policy & Planning

Municipal city planners, developers, politicians, decision makers – this is for you.

Stakeholder Engagement

Citizen and industrial engagement: How to reach out to important stakeholders and the community?

Technical Solutions

The place for technologies and research, from supply to smart use and system integration.

Latest from the Toolbox

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.

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Cities Manifesto for Fossil-Free Heating and Cooling

Cities Manifesto for Fossil-Free Heating and Cooling

To ensure that cities’ needs and leadership role are taken on board in this pivotal moment for the future of heating and cooling, Celsius Cities, #DHCities, Energy Cities and FEDARENE have come together to endorse the Cities Manifesto for Fossil-Free Heating and Cooling.

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