This report presents findings of the energy efficiency of dwellings in Wales (including heating and energy saving measures) across both the social and private housing sectors.
Mae’r adroddiad hwn yn cyflwyno canfyddiadau effeithlonrwydd ynni'r tai yng Nghymru (gan gynnwys mesurau arbed gwres ac ynni) ar draws y sectorau tai preifat a chymdeithasol.