I have been trying to get feedback from people's experience with these breaker box monitoring tools. Do any of them work and provide useful data. I frequently get called by people who want me to audit their homes to tell them exactly where all their power/energy is being used and why their bills are so high. In a one day audit, one can't really do that without knowing a detailed breakdown of the energy usage over time, though one can make some educated guesses based on HVAC quality, but that is not a complete picture. The typical question: "where is all my energy going?"
Have you used it? Does anyone install a circuit level monitoring devise for a month or two and then take it out once you have a month's worth of data? Seems they are pretty expensive to devote to each client and once you have the general idea of what is going on in all circuits, you don't necessarily need to keep them in place.