Continuous Monitoring

Hi. My hubby has been ranting about the high cost of energy in his office. He asked for my help to look for ways on how they could save. I guess I've already told him everything, like turning off lights that are not used, unplug all unused appliances etc. What else should they do? How could they monitor their usage? Suggestions?

In terms of cutting energy costs, most companies ask the help of a consultant to optimize use and identify inefficiencies.

Thanks for the reply. I have red about a method done through a service provider that will enable continuous monitoring of energy consumption. With this, the consumption will be monitored and proper measures will be suggested in order to conserve energy. What I am not sure of is whether this is applicable for small companies. My hubby's office is a small merchandising company with less than 20 personnel.