Rooftop solar incentives remain effective for low- and moderate-income adoption

Date Published
04/2022
Publication Type
Journal Article
Author
DOI
https://doi.org/10.1016/j.enpol.2022.112881
Abstract

Financial incentives for rooftop solar photovoltaic (PV) adoption have declined in the United States over time by policy design. Incentive phase-down can efficiently promote early adoption and avoid ineffective payments to late adopters. However, incentive phase-down may exclude low- and moderate-income (LMI) households from realizing the same financial benefits from PV adoption as high-income early adopters. Here, data from two state-level LMI PV incentive programs are analyzed to test whether incentives still drive PV adoption among LMI households. As a first order approximation, the analysis suggests that incentives drove adoption that would not otherwise have happened in about 80% of cases. To the extent that policymakers prioritize PV adoption equity as part of the emerging energy justice policy agenda, the results suggest that ongoing incentive support for LMI adoption may be merited.

Notes

This is a pre-print version of an article published in Energy Policy

Journal
Energy Policy
Volume
163
Year of Publication
2022
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