Introduce incentives or schemes for people who do not have means or space to invest in PV panels. Such incentives can include a revised & more attractive rebate depending on electricity & water consumption & some type of subsidy if one invests in other energy saving systems other than PV panels.
More environmental conscience
Despite incentives it's still expensive to buy such PV panels. Also one needs to explore the options of people who live in apartments and do not own their airspace.
This content is created by the open source Your Priorities citizen engagement platform designed by the non profit Citizens Foundation