In the reporting year, more than 15,600 homes received free and impartial energy saving advice through the Nest scheme and more than 3,800 households received a home energy improvement package.
Yn y flwyddyn adrodd, cafodd mwy na 15,600 o gartrefi gyngor diduedd am ddim ar arbed ynni drwy gynllun Nyth, a chafodd mwy na 3,800 o aelwydydd becyn o fesurau gwella ynni yn y cartref.