Penwythnos diwethaf defnyddiodd eich ysgol 4,500 kWh o nwy, a fydd wedi costio tua £270. Gofynnwch i reolwr y safle ddiffodd y gwres ar y penwythnos i arbed ynni!
Dros y y llynedd defnydd nwy eich ysgol oedd 510,000 kWh a chynhyrchodd 110,000 kg CO2. Mae hyn yn rhy uchel. Defnyddiodd ysgolion eraill o faint tebyg 470,000 kWh. Gwnewch yr un peth a'r ysgolion hyn ac arbed £4,700!
You have completed 1/8 of the activities in the Byddwch yn Egniol! programme Complete the final 7 activities now to score 65 points and 30 bonus points for completing the programme
Well done, you have scored 5 points so far and you're in 2ail position on the scoreboard. Complete your next activity to climb higher up the scoreboard!
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