Do financial incentives actually drive solar adoption in low-income households?
Yes, and the evidence is strong. A 2022 analysis of two state-level low- and moderate-income (LMI) solar incentive programs found that roughly 80% of LMI rooftop solar adoptions would not have occurred without the financial incentive [2]. This means that for every five low-income households that installed solar, four were directly enabled by the subsidy. The study used econometric methods to control for other factors, so the result is not just correlation — it isolates the causal effect of the incentive.
This finding directly addresses a common concern: that incentives merely pay people who would have adopted anyway. For LMI households, that is not the case. The implication is clear: if policymakers want solar and battery buildout to reach low-income regions, they need to maintain or increase targeted incentive programs, not phase them out as they have for higher-income adopters.
What stops low-income households from adopting solar, even with incentives?
A major barrier is that solar installers simply do not market to low-income areas as aggressively. A 2021 study using quote data found that installers submit fewer quotes to households in low-income neighborhoods, and households that receive fewer quotes are less likely to adopt [3]. The researchers calculated that this income-targeted marketing explains about one-quarter of the difference in adoption rates between LMI and higher-income households. In plain terms, even when a low-income household wants solar, they may not get a competitive bid — or any bid at all.
This supply-side problem is separate from demand-side issues like upfront cost or lack of information. It means that simply offering incentives is not enough; programs may also need to recruit installers to serve underserved areas, or create community-based installation models. The 2022 study on incentives [2] and this 2021 study on marketing [3] together show that both demand and supply must be addressed for solar and battery buildout to succeed in low-income regions.
Will solar and battery projects push out low-income residents through gentrification?
This is a legitimate concern, but the evidence here suggests that green infrastructure alone is not a major driver of gentrification. A 120-year study of low-income neighborhoods in London found that adding urban greenery had little independent effect on neighborhood socioeconomic characteristics [4]. Where gentrification did occur, it was driven by broader social, economic, and technological changes — not the green infrastructure itself. The study also noted that underlying soil quality and geology shaped which neighborhoods got greenery in the first place, meaning that green investments tend to follow existing socio-spatial patterns rather than create new ones.
This is reassuring for solar and battery projects: they are unlikely to single-handedly displace residents. However, a separate 2025 study on gentrification in U.S. low-income urban neighborhoods found that while gentrification can improve social satisfaction and political participation overall, these benefits are unevenly distributed — white residents and newcomers benefit most, while racial minorities and long-term residents see weaker gains [1]. The lesson for solar and battery programs is to design them with explicit equity safeguards, such as community ownership models or anti-displacement policies, to ensure that the benefits of cleaner energy and lower bills stay with the original residents.
About These Sources
This answer is built on 5 peer-reviewed studies — published from 2021 to 2025, 1 from 2024 or later, 5 in Q1 journals, collectively cited 66 times — selected as the most relevant from 5 studies that passed quality screening, drawn from 45 papers retrieved from a database of over 500 million.
Sources used in this answer
Whose Neighborhood Now? Gentrification and Community Life in Low-Income Urban Neighborhoods
In a national cross-sectional sample of ~17,500 low-income urban U.S. respondents, gentrification was positively associated with social satisfaction and political participation overall, but the benefits were weaker for racial minorities and long-term residents, suggesting gentrification is a racialized process that primarily serves white newcomers.
Rooftop solar incentives remain effective for low- and moderate-income adoption
Analysis of two state-level low- and moderate-income (LMI) rooftop solar incentive programs found that incentives drove adoption that would not otherwise have occurred in about 80% of cases, supporting continued incentive support for LMI adoption.
Income-targeted marketing as a supply-side barrier to low-income solar adoption
Using quote data from solar installers, the study found that installers submit fewer quotes to low-income areas, and this income-targeted marketing explains about one-quarter of the adoption gap between LMI and higher-income households.
Green infrastructure and socioeconomic dynamics in London low-income neighbourhoods: A 120-year perspective
A 120-year analysis of green infrastructure in London low-income neighborhoods found that new greenery had little independent effect on neighborhood socioeconomic characteristics; gentrification, where it occurred, was driven by broader social and economic changes, not by greening itself.
Community participation in a low‐income neighborhood: The salience of sociodemographic characteristics, perceptions and experience of violence, and neighborhood attachment
In a survey of 300 households in a low-income, high-violence Johannesburg neighborhood, community participation was high (especially through religious organizations), and being female, employed, and fearing violent crime were positively associated with participation.