A greater proportion of respondents with higher household incomes had energy efficient measures in their home than those with lower household incomes, especially smart lighting and heating measures.
Roedd gan gyfran fwy o ymatebwyr ag incymau aelwyd uwch fesurau effeithlonrwydd ynni yn eu cartref na’r rhai ag incymau aelwyd is, yn enwedig goleuadau clyfar a mesurau gwresogi.