Techno-economic assessment of solar assisted heat pump system retrofit in the Canadian housing stock

Abstract

The techno-economic feasibility of retrofitting existing Canadian houses with solar assisted heat pump (SAHP) is investigated. The SAHP architecture is adopted from previous studies conducted for the Canadian climate. The system utilizes two thermal storage tanks to store excess solar energy 10 for use later in the day. The control strategy is defined in order to prioritise the use of solar energy 11 for space and domestic hot water heating purposes. Due to economic and technical constraints a 12 series of eligibility criteria are introduced for a house to qualify for the retrofit. A model was built 13 in ESP-r and the retrofit was introduced into all eligible houses in the Canadian Hybrid Residential 14 End-Use Energy and GHG Emissions model. Simulations were conducted for an entire year to 15 estimate the annual energy savings, and GHG emission reductions. Results show that the SAHP system performance is strongly affected by climatic conditions, auxiliary energy sources and fuel mixture for electricity generation. Energy consumption and GHG emission of the Canadian housing stock can be reduced by about 20% if all eligible houses receive the SAHP system retrofit. Economic analysis indicates that the incentive measures will likely be necessary to promote the SAHP system in the Canadian residential market.

Performance of a demonstration solar PVT assisted heat pump system with cold buffer storage and domestic hot water storage tanks

“…A large number of publications was made within the IEA task 44 on solar and heat pump systems in 2010 to 2013 [17]. Asaee et al [18] studied by simulation the performance of a SAHP system and made an economic feasibility analyses of retrofitting houses in Canada with the system. They found that the system could reduce the energy consumption of the houses.…”

Towards the EU Emission Targets of 2050: Cost-Effective Emission Reduction in Finnish Detached Houses

“…Heat pumps have generally been found to reduce energy consumption and emissions. In Canadian studies, air-to-water heat pumps reduced the greenhouse gas emissions of the housing stock by 23% [22], while solar-assisted Energies 2019, 12, 4395 3 of 29 heat pumps reduced emissions by 19% [23]. Here, the key question is how the electricity to run the heat pumps is produced, as larger reductions are achievable with low emission electricity.Bjørneboe et al [24] confirmed through a year-long monitoring campaign that simulated energy savings of a renovated single-family house matched those of a real building.…”

Identification and Analysis of Impact Factors on the Economic Feasibility of Photovoltaic Energy Investments

“…Summary of identified impact factors. ,17,20,24,27,32,36,40,41,43,46,49,51,57,[59][60][61][62]69,75,76,78,80,83,85,86,88,89,92,93,95,97,98,108,111,115,117,121,124,130,137,148,150,153,155,161,167,184,186,193,200,204,207,…”