I have been a Sense user for 3 months now. Overall, I am extremely satisfied! Technical support is superb and the user interface / app is beautiful. In the interest of sharing my Sense story with others, the only thing that really needs discussion is detection efficiency. As we all know, this technology works best when it can identify individual devices.
Sense has natively detected devices 18 times. Of those, 9 are working well. What about the others? Two were never heard from again so must represent a confused algorithm. One started getting conflated with something else, so technical support suggested that I deleted it and wait for re-detection (which did occur, and the new detection is better than the original). One detected device was only picking up 30% of usage so I put that device on an HS110 to get a better view. I also retired several of of the physical devices that had been detected, which makes the statistics look worse but has nothing to do with Sense technology.
Those 9 native devices pick up about 40% of my total usage. Sense is intentional about detecting those devices that have the most impact, and they have achieved their goal in my case. Since I wanted a more complete picture, I also invested in several TP-Link smart plugs with energy monitoring capability. Those devices are also located to provide as much impact as possible. The graph below shows how much of each day’s total usage is accounted for by each detection method over these first three months. The blue color represents native devices whose history is applied retroactively in certain cases. Uncolored (white) areas represent native detection.
I categorize my devices by their function in my house. Air conditioning is the largest usage by far, as my stove and hot water both run off natural gas. The graph below shows weekly averages over this same period.
I feel fortunate to know where 90% of my electricity is being used. Especially compared to other users for whom Sense has not been so informative. My intention in sharing is not to boast, but rather to congratulate Sense on a job well done. This post may also help new users to wait patiently for results, which do not happen instantly. Finally, this post shows how important integrations are for my Sense experience. Although one could say it is a weakness of Sense that their technology needed that much help from integrations to reach 90% accounting, I consider it a strength that they have made a flexible product that can work with other technology to fill in for their weakness. Teams are stronger than sum of their individual players.