Method and apparatus for monitoring the consumption of utilities in business premises
 The invention is an apparatus and method for monitoring the consumption of utilities in business premises. The premises are divided into notional zones, each including a utility load and a meter to record consumption within the zone. The zones are combined into notional groups. A central analysis computer is provided for receiving consumption data from the zones of a group to calculate total utility consumption within the group, and to conduct further analysis on the consumption data. The computer also supplies control data to the zones for controlling utility consumption. A single loss monitoring device records the total losses which occur between a point and the utility loads in the zones. The loss monitoring device transfers this information to the computer. Alternatively, a separate loss monitoring apparatus is supplied for each column of zones for determining the losses which occur in any single column of zones. 
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Derek R.
Marsden