The increase in nonrenewable energy (non-RE) has been a growing concern for low-income individuals’ quality of life, health, economy, and environment. At the same time, the use of non-RE is also a great concern for the whole population as we are breathing the same environment. The photovoltaics (PV) solar panel is one solution to decrease low-income individuals’ energy bills and increase the quality of life of all individuals. Knowing the behavioral theory of why low-income individuals do not adopt PV would allow further insights and possible interventions to help low-income individuals install PV. Research has found that low-income individuals are more likely to have financial and knowledge barriers that hinder them from installing PV. Providing a way for low-income individuals to combat these barriers would help them to use PV. This review showed that low-income individuals are likely to benefit from policy programs that incentivize them to use PV. More knowledge about PV can also be aided by policy programs that inform low-income individuals how to save financially and at the same time work their way to install PV. Social groups could also be formed in the same policy programs to help low-income individuals share strategies on saving financially and knowledge about the benefit of installing PV. These social groups can act as a social reinforcement to low-income individuals to install PV. Helping low-income individuals to install PV would help low-income individuals financially and improve the population’s quality of life.