Putting energy data to work will show up on your company's bottom line. Commercial and industrial energy users can examine electricity usage patterns and make changes that save money on their utility bills, improve local electricity reliability, and reduce emissions to the environment. Usage data is available from utility bills, interval billing meters, energy information systems, and even building automation systems—you can get a mountain of data. You'll need a systematic approach within a total energy management program to sift, identify, analyze, and apply the valuable nuggets that can be found within that data mountain, but it's worth it, because "there's gold in them thar hills."