"Nawr mae'n bryd i Lywodraeth y Deyrnas Unedig roi'r gorau i'r oedi, a symud ymlaen i gytuno ar bris er mwyn i ni wireddu'r prosiect arloesol hwn."
“Now is the time for the UK government to stop stalling and get on with agreeing a strike price so we can make this transformative project a reality.”