O na! Mae defnydd nwy yn ystod y tymor wedi cynyddu gan 2,500% sy'n costio£28 yn ychwanegol bob wythnos. Gwiriwch a yw thermostatau gwresogi wedi'u gosod ar 18°C i arbed ynni.
You have completed 0/8 of the activities in the Byddwch yn Egniol! programme Complete the final 8 activities now to score 70 points and 30 bonus points for completing the programme
Mae Sbarcynni yn cefnogi Ringland Primary School mewn partneriaeth â Egni Coop
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