Pa amcangyfrifon y mae Llywodraeth Cymru wedi'u gwneud o gyfanswm cost cwmni ynni cenedlaethol a amlinellir yn y Cytundeb Cydweithio?
Wedi'i ateb gan Y Gweinidog Newid Hinsawdd | Wedi'i ateb ar 21/03/2022
In line with commitment in the Co-operation Agreement, the Welsh Government and Plaid Cymru’s Designated Members, are working together to refine the scope and purpose of the proposed company, before making an assessment of cost.