CA I S AM B E I R I ANWY R
ACHUB Y BYD MEWN C Y F NOD O ARGY FWNG
AC T I V E OF F I C E
AC T I V E C L A S S ROOM
Adeiladau gweithredol
a all gynhyrchu, storio a rhyddhau eu hynni solar eu hunain
P E I R I ANNE G YM MHR I F YSGO L A B E R TAWE
17
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