AIR CONDITIONING
The decarbonisation of the National Grid has so far been successful as the UK has turned from predominately coal fired power stations to gas fired and nuclear power stations. The contribution made by renewables to UK power generation has more than doubled since 2014. Renewables (mainly wind, solar, biomass, hydro) accounted for 43% of the UK's 312 TWh of electrical power generation in 2020. In 2026 the new Sizewell C Hinkley point Nuclear power station will be commissioned which in itself will be capable of supplying 7% of the UK electricity. This continued decarbonation of the Nation Grid has been reflected in the latest version of the Standard Assessment Method SAP 10.1 used when designing buildings. The new figure of 136 grams of CO2 per kWh of electricity compared with SAP2012 introduced in 2014 with 519g grams of CO2 per kWh goes to represent just how much cleaner the electricity grid has become.
The cleaning up of the National Grids emissions is the main reason for the rapidly growing heat pump market in both the domestic and commercial sectors and will also be boosted by Governments push to phase out fossil fuel boilers in new homes 2025 and commercial buildings in 2033. According to the CCC currently 40% of UK carbon emissions come from UK households with emissions from heating and hot water being the biggest CO2 contributors. The new 10 point plan for a Green Industrial Revolution sets out a target of replacing fossil fuel boilers with heat pumps from 40,000 being installed last year to 600,000 a year by 2028. The reality is that a lot of 120,000 a year new build houses will need to have heat pumps in order to gain planning permission and the Government will hand out up to 30,000 heat pump grants for the retrofit market from April 2022 for 3 years. The £5000 up-front grant for air source heat pumps will help to bridge some of the cost gap between heat pumps and fossil fuel boilers.
In the commercial sector heat pump demand is being driven mainly by demand for low carbon heating requirements pushed by the building regulations such as the Future Buildings Standard, Part L, and the London Plan and 2020 RIBA Plan of Works… The domestic and commercial heating markets will continue to be transformed with heat pump low carbon heating technology for the foreseeable future. The fact that 1kW of electricity to get 3.5kW of heat out
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(an average H/P seasonal efficiency) makes total sense…especially when connected to an lowering carbon electricity grid. To a few this low carbon technology may still seem a little niche, however this massive market transformation is already well underway with heat pump technology creating an easy transition from fossil
fuel boilers to low carbon heating in both commercial and domestic sectors. The ramping up of heat pump installations and displacement of fossil fuel boilers in the market will have a huge beneficial impact helping the UK to achieve its net zero target by 2050. X
www.pacair.co.uk
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