collaboration with building managers, will decipher the CUSUM graph and identify the causes leading to variations in the consumption. This can be a change in behaviour, a modification to the process, different exterior conditions, etc. These changes must be monitored and the causes identified in order to promote and enhance good behaviour, and discourage bad ones. Set targets Once the base line has been established, and causes for variations in energy consumption have been identified, it is time to set targets for the future. Now with all this information in hand, the targets are more realistic, as they are based on the building's actual consumption. Targeting consists in two main parts: the measure to which the consumption can be reduced, and the timeframe during which the compression will be achieved. A good initial target is the best fit line identified during step 2. This line represents the average historical performance. Therefore, keeping all consumption below or equal to the historical average is an achievable target, yet remains a challenge as it involves eliminating high consumption peaks. Some companies, as they improve their energy consumption, might even decide to bring their average performance down to their historical best. This is considered a much more challenging target. Monitor results This brings us back to step 1: measure consumption. One of the specificities of M&T is that it is an ongoing process, requiring constant feedback in order to consistently improve performance. Once the targets are set and the desired measures are implemented, repeating the procedure from the start ensures that the managers are aware of the success or failure of the measures, and can then decide on further action. Examples An example with some features of an M&T application is the ASU Campus Metabolism, which provides real-time and historic energy use and generation data for facilities of Arizona State University on a public web site. Many utilities also offer customers electric interval data monitoring services. Xcel Energy is an example of an investor owned utility that offers its customer electric and natural gas monitoring services under the product name InfoWise from Xcel Energy which is administered by Power TakeOff, a third party partner. See also Building automation Demand response Energy conservation Energy management software Home energy monitor Nonintrusive load monitoring References Building automation Energy conservation Management theory Low-energy building Sustainable building Electricity meters