Last autumn, we launched the second round of funding for the Optimised Retrofit Programme to test innovative approaches to decarbonisation of Welsh homes.
Yr hydref diwethaf, lansiwyd yr ail gylch o gyllid ar gyfer y Rhaglen Ôl-osod er mwyn Optimeiddio i brofi dulliau arloesol o ddatgarboneiddio cartrefi Cymru.