The program is open to everyone — including homeowners, renters and landlords. But how much of a discount you'll receive depends on your income, how many people you live with, and how much energy the upgrade is expected to save.

Indianapolis is among the worst in the country for energy efficiency, according to the report by the American Council for an Energy-Efficient Economy. Transportation is a main factor contributing to Indianapolis’s low score as it makes up about third of the city’s total carbon emissions.

What can property owners and legislators do to ensure energy efficiency for heating and cooling systems as the state deals with higher temperatures? One member of our audience inspired this question.