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Last edited 27 May 2021
European decarbonisation and heating technologies beyond 2021
While the heating market has been stable for most of the last decade, 2020-2021 was a decisive point for the industry, not only because of the COVID-19 pandemic but also the push for Green Economic Recovery. In Europe, a target of carbon neutrality was set for 2050, and before that, a significant increase from 40% to 55% in the reduction of carbon emissions by 2030. The drive to decarbonisation is gathering pace with several distinct pathways to achieve it.
Here, we are talking about electric-driven heat pumps; they are part of the “all electric” scenario for the future, which is supported by the extensive decarbonisation of electricity and the shift to all electric heating.
Issues include the impact on the electric grid and the price of electricity – on average three times that of gas. Heat pumps are ideal for new builds but can be difficult in older, poorly insulated buildings.
Some heating companies have already developed so-called hydrogen-ready boilers. The claim is that it will be possible to switch from natural gas to hydrogen with minimal disruption, when the time is right. Several obstacles, including safety, availability, production of green hydrogen, price of fuel and products, will have to be overcome to make it a success.
 District Heating and Cooling (DHC)
Heat networks are most suitable for cities and built-up areas like campuses and blocks of flats. The issue is that it is inherently inefficient to transfer hot water in a pipe compared to a boiler working in situ or an electric line.
The progress of fifth generation heat networks, whereby there is no central energy centre, rather using locally available waste heat and low temperature renewable energy in bodies of water or solar energy, is encouraging.
Anything that connects a traditional heating unit with a renewable energy source can be classified as a hybrid; at its simplest, it could be a small heat pump connected to a gas/biomass/green gas boiler, the latter for those cold days. This means there is no need to insulate the house or to upgrade the radiators.
 Other electric: electric boilers or electric panels, air-to-air heat pumps
New buildings generally have a very low demand for heat. For an average modern home, a heating capacity of 2kW to 3Kw is adequate – a 10-fold reduction compared to an older house. Consequently, a heat pump is a good solution. But why even use a hydronic system with radiators at all?
Air-to-air heat pumps, or integrated solutions of heating, cooling and ventilation (with air-purification, too) is another alternative. Also, electric boilers or electric panels are viable solutions; they are attractive to developers, but less so to users due to the cost of heating.
We live in changing times, and in the HVAC industry two things are coming together: the two fundamental trends towards digitalisation and energy transition and companies that make heating equipment or air-conditioning are changing faster than ever before.
 BSRIA Worldwide Market Intelligence study into European heating industry transition: 2020-2030
BSRIA will use its solid base of historical data combined with expert views on the developments in the heating, air conditioning and renewable markets to put forward some scenarios forecasting in which direction heating in our homes will go between now and 2030. The study will identify the winning technologies amongst boilers, heat pumps, heat interface units, air-to-air heat pumps and reversible air conditioning. It will also review the likely success of hybrid systems, widely seen as bridging the gap between traditional heating systems and renewables.
We will develop two scenarios, typically a hydrogen progress scenario and an electric and DHC scenario, to account for roadmaps for the banning of gas/oil, what governments will see as the more realistic propositions, what incentives or subsidies may apply, as well as building regulations, energy prices, demographic changes, cost of installation and running, product offering, etc.
- BSRIA UK (Europe): [email protected]bsria.co.uk; +44 (0) 1344 465 540.
- BSRIA USA (Americas): [email protected]bsria.com; +1 312 753 6803.
- BSRIA China (China): [email protected]; +86 10 6465 7707.
This article originally appeared on the BSIRA website under the headline, 'Decarbonisation is gathering pace as heating technologies compete in the main European markets'. It was published in May 2021.
 Related articles on Designing Buildings Wiki
- Boiler markets and the green recovery.
- BSRIA articles on Designing Buildings Wiki.
- Building heating systems.
- Carbon neutral buildings.
- Domestic heat pumps and the electricity supply system.
- European hydronic controls market 2019 - 2021.
- Global boiler market.
- Heating ventilation and air conditioning HVAC.
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