Each month i’m amazed at the total energy spend, so I think it might make sense to start monitoring things to understand where all the power is going. I settled on a Brultech ECM-1240 system. The system is made up of many strategically placed current transformers (non-invasively track current flow) within the service panel as well as a small controller box that eventually makes the power information available over my intranet.
It took about half a day to install and setup everything. Most of the time was spend carefully attaching the CT probes in the crowded service panel.
Here is a shot of the final install, the main service panel is on the exterior of the building opposite of this wall.
Here is the ECM-1240 used to collect the current data.
Since the ECM-1240 has no ethernet capability it was necessary to use a ZigBee to ethernet gateway as a means to provide the raw data to server running the software.
Not all the power here is consumed, we have solar power generation that is tied through an inverter back onto the grid.
The Solar System can generated about 5-6 KW of power.
Below you can see the raw instantaneous data. Not the “Radio” tap is showing over 1 KW. Solar generation is 4KW and total energy being supplied is about 235W. This is because air conditioning is not running, otherwise the supply would be quick more.
Another “gauge” view of the data.
Any finally, the preferred output via web browser.This is live real time view, but you can also look at historical data.
After about a week of operation, I decided additional channels where required to get the full visibility into all the power consumption, so another ECM-1240 was added.