We systematically review studies evaluating the energy savings and cost-effectiveness of residential energy efficiency retrofit programs. We review 39 evaluations of 23 residential retrofit programs that were evaluated between 1984 and 2021. Our sample is restricted to program evaluations that...

Over 50 countries representing three quarters of global CO2 emissions have pledged to achieve a net-zero carbon economy by 2050, and energy efficiency improvements are a primary contributor in policy scenarios that attain this goal. However, uncertainties remain about the realized effectiveness...