Mae hyn yn dilyn llythyr a anfonodd Carwyn Jones at Theresa May yn cynnig talu rhywfaint o gostau cyfalaf y morlyn llanw, gan annog Llywodraeth y DU i fwrw ymlaen â'r prosiect.
This follows on from a letter the First Minister sent to Prime Minister Theresa May offering to cover some of the tidal lagoon’s capital costs and urging the UK government to give the project the go-ahead.