Welcome to the Celsius Initiative!
We are a demand driven collaboration hub for efficient, integrated heating and cooling solutions supporting cities in their energy transition to carbon-neutral systems. Focusing on cities’ needs, through the forerunner groups, it connects its members to exchange on climate and environmental policies, foster innovation, leading to solutions that accelerate sustainable development in Europe and across the world.
The initiative also provides continuous knowledge sharing through a monthly newsletter, webinars, participatory workshops and the Celsius Toolbox. The later gathers and shares technical, economic, social and policy expertise.
Latest News
Geothermal solves the energy dilemma of European cities
Cities dominate energy demand and it is essential to wean our cities off fossil fuels and replacing these with geothermal and other renewables.
Phasing out fossil energy in Croatia
An interview with Tomislav Novosel, project leader at REGEA and one of the main organisers of the Celsius Summit 2021.
District Cooling in Rajkot, India
The city of Rajkot, in the state of Gujarat, India, is the first pre-existing city in India to tender a district cooling system.
Latest from the Toolbox
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.
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.
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.
Stay posted on our newsletter and invitations
Webinars

Celsius Summit 2020 – biggest Celsius event to date
Mission Possible! The 2020 Celsius Summit, co-organised by the Celsius Initiative and the North-West Croatia Regional Energy ... learn more

Webinar: Cities & the Renovation Wave – Impactful District-Level Approaches
This webinar focuses on how the “Renovation Wave” will provide support to cities and regions when they decarbonise their building stock. learn more

Webinar: Local leaders on the front lines
Five star cities presenting their best practices in efficient heating and cooling solutions for a sustainable future. learn more

Webinar: Financial instruments and success cases
This webinar provided a European perspective on financial investment, from EU’s Urban Agenda Energy Transition Partnership to success cases and transparent green bonds to minimize the risks. learn more
Read the latest Celsius Newsletter
The CELSIUS Newsletter is published monthly to promote and improve the visibility of what is happening in our network.
The latest issue focuses on solar district heating. You find this newsletter here.


Give cities a voice in Brussels
No energy transition without sustainable cities; no sustainable cities without sustainable heating and cooling. As the 2016 European Commission’s Heating & Cooling Strategy made clear, district energy systems will have to play a significant role to make Europe’s broader climate and energy ambitions a reality. And cities will be in the driver’s seat to make a successful energy transition happen.
This is the Celsius Initiative website
Are you looking for information on the completed CELSIUS project? Click here to find the project’s website.