Www.Theenergydetective.com is another option. I think I paid $135 and found $50/month savings right away.

Curious as to what the 50 per month was from?

The biggest chunk of the $50 was a malfunctioning electric water heater. But we went on to save $160/mo. more. The biggest surprises were 3x 20 watt doorbell inverters, the DVD player that never shut off, the desktop computers, the old TV, and 5-6x 10 watt draws that were hard to track down.

Now our electric bill is 15% what it used to be with no real change in our behavior. ($40/mo.) Actually, we've increased the amount of light in several rooms.