Mae Llywodraeth Cymru a Chonsortiwm Sizewell C wedi llofnodi Memorandwm Cyd-ddealltwriaeth. Gallai'r Memorandwm Cyd-ddealltwriaeth arwain at fuddsoddiad o hyd at £900 miliwn yng nghadwyn gyflenwi niwclear Cymru ac at gefnogi hyd at 4,700 o swyddi ledled Cymru, os rhoddir sêl bendith i'r orsaf bŵer.
A Memorandum of Understanding (MOU) has been signed by Welsh Government and the Sizewell C Consortium.