Mae Gorchymyn Gorsaf Gynhyrchu Storfa Bwmpio Glyn Rhonwy 2017 (“Gorchymyn 2017”) wedi ei ddiwygio fel a ganlyn.

Yn lle paragraff 2 o Ran 2 o Atodlen 1 i Orchymyn 2017 rhodder “The authorised development must be commenced no later than 29 March 2024.”