hopefully come off the ring main at the front of the house, supply an armoured cable which will need to be dug in under the driveway(if this is a problem we can have it dug out) say 10 metres take it down the fence line to the shed greenhouse combi at the bottom say 21 metres.. need lights, and a couple of power points one external, . power for greenhouse needed for black heat. include any elec. boxes, switcehes etc required