This power saw is battery-powered, so no need to bother with cords and such. The saw has a voltage of 54 volts and has a hefty weight of 25.5 kg.
From Zoro
DeWalt DHS780T2-GB 2X 54V Flexvolt 305MM Mitre Saw 2 X Batteries
Powertool World
DeWalt DHS780T2-GB 305mm (12") 2x 54v FLEXVOLT Cordless Mitre Saw Inc 2x DCB546 Batts
Wickes
DEWALT DHS780T2-GB 54V Flexvolt Brushless Cordless 305mm Sliding Mitre Saw With 2 x 6.0Ah Batteries