I finally managed to get hold of an energy monitor for the house. I’ve been looking for one of these for a good while and finally got a great deal on an unwanted eaga monitor via eBay. My monitor is brand new and in original retail packaging and cost me £11 including delivery.
The monitor itself consists of a live cable clamp, a battery powered transmitter and a mains powered monitor. The live clamp clips around the live feed cable on the house side of the electric meter. Small magnets detect the current running through the cable and the transmitter broadcasts this to the desktop monitor. We have put our monitor in the kitchen so we can keep an eye on our consumption.