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Modelling the Contribution of Domestic Heat Pumps to Delivering UK Energy Policy Objectives
CREST (Centre for Renewable Energy Systems Technology), School of Electronic, Electrical & Systems Engineering, Loughborough University, Leics. LE11 3TU UK
* Author to whom correspondence should be addressed.
Received: 25 December 2012; in revised form: 8 February 2013 / Accepted: 17 February 2013 / Published: 28 March 2013
Abstract: The UK Government has ambitious targets for CO2 emissions reductions, particularly for the domestic housing stock. One technology that is expected to contribute significantly is heat pumps, both air and ground source. However, recent field trial results suggest that heat pumps in the UK are not delivering to performance expectations. This paper looks at the implications of these results for the UK housing stock’s future CO2 emissions. The English Housing Condition Survey dataset is used as the basis for a Monte Carlo simulation in order to model CO2 emissions and energy consumption for the whole of English housing stock out to 2050. The results suggest that, given the current UK electricity grid CO2 emission factor, in the short term poor heat pump performance could lead to a rise in emissions where natural gas boilers are displaced. In the longer term, heat pumps can realise emissions reductions when installed at high penetration levels when combined with a grid decarbonisation strategy. Until grid decarbonisation occurs, an alternative phased strategy is proposed that includes phased replacement of resistive electric heating, first in households in fuel poverty and then the remainder of properties with this heating type. Following this phased strategy, real emissions savings are possible along with a potential reduction in fuel poverty.
Keywords: heat pumps; Air Source Heat Pumps (ASHP); Ground Source Heat Pumps (GSHP); Standard Assessment Procedure (SAP); Monte Carlo; English Housing Condition Survey (EHCS)
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MDPI and ACS Style
Braun, D.; Rowley, P. Modelling the Contribution of Domestic Heat Pumps to Delivering UK Energy Policy Objectives. Appl. Sci. 2013, 3, 338-354.
Braun D, Rowley P. Modelling the Contribution of Domestic Heat Pumps to Delivering UK Energy Policy Objectives. Applied Sciences. 2013; 3(2):338-354.
Braun, David; Rowley, Paul. 2013. "Modelling the Contribution of Domestic Heat Pumps to Delivering UK Energy Policy Objectives." Appl. Sci. 3, no. 2: 338-354.