Maes Carafanau Trallwyn, Trallwyn Caravan Park Lôn Caernarfon, Llwyndyrys, Pwllheli, Gwynedd, LL53 6RL
Uwchraddio'r llinell Uwchben 11kv presennol i Dri Cham. Upgrade existing 11kv Overhead line to Three Phase