Self-learning, real-time, data-driven power metering system

A method of disaggregating power of a site, said method comprising:

• out of a plurality of loads operating at said site during a plurality of time intervals, identifying a model in a database that predicts power used by a first of said loads during one of said time intervals;
• subtracting said predicted power from a running total of unmeasured power used by said site during said time interval and indicating that said first load is not operating during said time interval;
• determining power used by a second of said loads during one of said time intervals when no other loads are operating or are indicated as operating;
• fitting a new model using said determined power and storing said new model in said database;
• outputting said predicted power and said determined power;
• identifying a third of said plurality of loads at said site for which, during a time longer than for other loads of said plurality of loads, no model can be fit while said third load is operating, said third load not including a power meter;
• and
• adding a power meter to said third load to measure a load power used by said third load.

A method of disaggregating power at a plurality of sites, said method comprising:

• identifying a first time interval when only a single first load is operating at a first site;
• determining a first load power used during said first time interval by said first load;
• fitting a model using selected sensor data of said first site during said first time interval and said determined first load power;
• identifying a second load operating at a second site different from said first site and being of the same type as said first load operating at said first site;
• determining a second load power used during a second time interval by said second load using said model;
• outputting said determined second load power;
• identifying one of a plurality of loads at said first site for which, during a time longer than for other loads of said plurality of loads, no model can be fit while said one load is operating, said one load not including a power meter;
• and
• adding a power meter to said one load to measure a load power used by said one load.