Construction Manager magazine March 2021

Page 36

CPD

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CPD In Glen Dimplex’s Zeroth communal heating system a heating loop feeds individual heat pumps for each apartment

RESIDENTIAL HEAT PUMPS AND ENERGY EFFICIENCY THIS CPD, IN ASSOCIATION WITH GLEN DIMPLEX, CONSIDERS THE APPLICATION OF PACKAGED RESIDENTIAL WATER SOURCE HEAT PUMPS IN CONJUNCTION WITH COMMUNAL AMBIENT HEAT NETWORKS, FOR ENERGY-EFFICIENT FUTURE HOMES

In November 2020, prime minister Boris Johnson outlined a 10-point plan for a “Green Industrial Revolution”, which included an increasingly decarbonised electrical supply grid and the “ambition” for an additional 600,000 heat-pump installations by 2028. The target came alongside a desire to implement the Future Homes Standard in “the shortest possible time”. Heating and hot-water production in UK homes are responsible for around 13% of the nation’s carbon emissions. As part of the effort to reduce greenhouse gas emissions to net zero by 2050, the draft Future Homes Standard anticipates that an average home will have 75-80% fewer carbon emissions than a home constructed to current standards. The plan is to realise this by introducing high fabric-efficiency standards, combined with low-carbon heating systems. As reported in 2015 by the Department of Energy and Climate Change (DECC), UK heat-network schemes – including district heating and communal heating – are thought to serve 200,000 dwellings and 2,000 commercial and public buildings. District heating serves more than one building (and more than one customer), while communal heating refers to a single building served that has more than one customer. Although the largest heat-network schemes are predominantly found in cities and on university campuses,

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