Mae’r cap ar brisiau ynni, a godwyd ym mis Hydref, wedi helpu i warchod cartrefi rhag rhywfaint o effeithiau gwaethaf y cynnydd mewn costau yn y farchnad nwy a thrydan domestig dros fisoedd y gaeaf, cynnydd sydd wedi achosi i nifer mawr o gyflenwyr fynd i ddwylo’r gweinyddwyr.
The energy price cap, which was raised in October, has helped to shield households from some of the worst of the cost increases in the domestic electricity and gas market over the winter months, which has seen a large number of suppliers fall into administration.