Bydd y moratoriwm hefyd yn golygu mai dim ond os gall ymgeiswyr ddangos bod angen cyfleusterau o'r fath yn y rhanbarthau lle maent wedi'u cynllunio y caniateir gweithfeydd ar raddfa fechan, o lai na 10MW. Hefyd byddai angen i weithfeydd bach gyflenwi gwres, ac – os yw'n bosibl – bod wedi’u galluogi i ddal a storio carbon, neu'n barod ar gyfer hynny.
The moratorium will also mean small-scale plants, of less than 10MW, will only be allowed if applicants can show there is a need for such facilities in the regions in which they are planned. Small plants would also need to supply heat, and – where possible – be carbon-capture and storage enabled, or ready.