Rydyn ni’n deall bod rhaid i ni weithredu nawr, felly rydyn ni wedi ymuno â NexGen a chymdeithasau tai eraill i chwilio am ffyrdd newydd gwyrddach a rhatach o wresogi’n cartrefi.
We know we have to act now, so we have teamed up with Nexgen and our housing association peers in a bid to find alternatives to heating our homes that will be greener and cheaper for people to use.