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About Heating & Cooling

State of green

Heating & Cooling

Energy-efficient heating and cooling solutions are an ingrained part of the Danish DNA. While many countries have opted for individual, on-site heating and cooling solutions, Denmark decided to focus on collective heating systems after the oil crisis of the 1970s. Today, 64% of all Danish households are supplied by district heating, contributing to making Denmark one of the most energy-efficient countries in the world.

District Heating and Cooling
District energy is all about how value is created by supplying heating and cooling collectively instead of individually. In its simplicity, district energy systems move water, with a valuable temperature, from the place of production to the place of consumption. The efficiency of the system is created in all three parts; creating heated or chilled water, avoiding heat loss in the distribution as well as effective connection and use on the consumer side.

Denmark passed its first heat supply law in 1979. Based on this law, Danish stakeholders have developed a political framework to implement district heating successfully across Denmark and thereby gained valuable experience over the past four decades. This has also spurred the growth of numerous companies, who deliver state-of-the-art technologies and know-how within all parts of the value chain of district energy systems.

Flexible co-generation of electrical and thermal energy
Co-generation of electrical and thermal energy at Combined Heat and Power (CHP) plants enables to reach efficiency levels above 90%, making it a particularly efficient and cost-effective way of supplying heat in densely populated areas. An example is the Danish capital Copenhagen where 98% of the households are supplied by district heating. Also, district heating and cooling is able to utilise all energy sources, including renewables, which allows a flexible and eco-friendly production. In fact, 55% of the Danish district heating is based on renewable energy.

Similar to district heating, district cooling possesses immense potential for reducing costs and CO2 emissions. District cooling systems in Copenhagen can, for instance, use seawater from the harbour.

Integrating upgraded biogas and heat pumps
In addition to district energy, Denmark also utilises a natural gas grid as well as individual solutions. Upgraded biogas is fed into the natural gas grid and heat pumps are increasingly used for individual heating solutions. Large heat pumps are also used at various plants to help integrate surplus renewable power into the thermal energy system.

Heating and cooling for all
With more than 100 years of experience in district heating, Denmark hosts some of the world’s leading suppliers in the fields of district heating and cooling, as well as in waste-to-energy. Their technologies, solutions and know-how can serve as inspiration for other countries looking for energy-efficient heating and cooling systems:

- Explore more than 340 ‘Solutions’ within Heating & Cooling 
- Connect with more than 210 ‘Profiles’ within Heating & Cooling

Interested in learning more?
For further information on Heating & Cooling, please contact Thomas Dahl Thellesen, Project Manager, tdt@stateofgreen.com / +45 2057 0070. 

We hope you will be inspired!

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