Almost 27,200 properties underwent energy upgrades last year.
The Environment Minister says "we have everything to gain by ramping up" retrofitting every year.
27,199 property upgrades were completed in 2022, up almost 80% on the previous year.
Of these upgrades, 4.438 were fully funded upgrades for low-income households.
Roof and cavity wall insulation measures, the simplest thing you can do to maintain heat in your home, grew by 107 percent between 2021 and 2022.
The Government aims to retrofit half a million homes to a BER rate of B2 and install 400,000 heat pumps in existing homes by 2030.
Environment Minister Eamon Ryan has said "momentum in retrofit is building."
He added: "these energy upgrades are a crucial support for low-income households during this period of high energy bills."
The Sustainable Energy Authority of Ireland processed more than 50,000 grant applications across all schemes last year -
