Cafwyd problemau hefyd gyda’r datblygiad arfaethedig yn Wylfa B, pan wnaeth y cwmnïau arweiniol dynnu’n ôl. Yn ddiamau, roedd hynny’n ergyd fawr i’r ynys, o ystyried potensial Wylfa B ar gyfer datblygiad economaidd.  Ond roedd ymateb y Cyngor yn un rhesymol a difrifol, a rhannwyd yr un nod o geisio sicrhau bod cwmni arall yn cydio yn y prosiect. Ni chafwyd dim o’r beio a’r cyhuddo y byddem wedi’u gweld yn y gorffennol.
There have also been problems with the proposed development of Wylfa B, when the leading companies withdrew.  The potential that Wylfa B has for the economic regeneration of the island means that is undoubtedly a major setback for the island.  But the response from the Council has been sensible and serious, with a strong mutual interest in securing fresh involvement from another company.  There have been none of the recriminations and accusations that we would have seen in the past.