Rooftop solar with net metering: An integrated investment appraisal

Majid Hashemi, Glenn Jenkins () and Frank Milne

Renewable and Sustainable Energy Reviews, 2023, vol. 188, issue C

Abstract: This paper develops a framework for a financial, economic, and stakeholder analysis of a residential rooftop solar net-metering program. The empirical focus of the paper is the net-metering program in Ontario, Canada, but the methodology is applicable to evaluating other public programs. The results highlight that without the Federal Government's subsidy for the initial investment cost, net-metered solar systems are not financially viable for representative households. Moreover, the stakeholder analysis reveals that for each additional net-metered system installed in Ontario, non-net-metered households experience financial losses of six times the benefits to the net-metered households. The net losses to the Federal Government of Canada and the Canadian economy are five and nine times the benefit to the net-metered households, respectively. The only stakeholder who benefits marginally is the Government of Ontario. In terms of environmental benefits, our estimate of the cost of greenhouse gas abatement by residential net-metered solar is 325 CAD per ton of CO2, which is significantly higher than the current (65 CAD in 2023) and future (170 CAD by 2030) national carbon price set by the Government of Canada.

Keywords: Rooftop solar; Net metering; Greenhouse gas emissions; Renewable energy; Distributed energy resources; Canada (search for similar items in EconPapers)
JEL-codes: D61 L94 Q42 Q48 (search for similar items in EconPapers)
Date: 2023
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Working Paper: Rooftop Solar with Net Metering: An Integrated Investment Appraisal (2023)
Working Paper: Rooftop Solar with Net Metering: An Integrated Investment Appraisal (2022)
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DOI: 10.1016/j.rser.2023.113803

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