Bydd bron i 120,000 o bobl sydd ar fesuryddion talu ymlaen llaw yn gymwys i gael tua 49,000 o dalebau i'w cefnogi yn ystod yr argyfwng costau byw.
Nearly 120,000 people on prepayment meters will be eligible for approximately 49,000 vouchers to support them during the cost-of-living crisis.