I may consider upgrading my panel to a 200A panel to support EV charging and might add solar panels to the roof at some point in the future. I say may because I might not actually need a 200A panel to support EV charging since I don’t have major electrical appliances outside of a electric washer & dryer & 3x mini splits (gas hot water heater, range, & fireplace).
measure electrical usage at the aggregate level
eventually measure electrical usage at the circuit level
What Iotawatt hardware should I buy?
I think the answer is:
Iotawatt V5 base unit
AccuCT 100A x 16mm split-core × 2
AccuCT 50A x 10mm split-core × 12
Eventually, it seems like I would need to buy another Iotawatt V5 base unit & 12 ore AccuCT 50A x 10mm split-core if I wanted to have every circuit measured.
Does this seem about right? Also - do you install your CTs yourself or have an electrician do it for you? I’ve installed new outlets but that’s pretty easy since you can turn off the circuit from the panel.
I’d recommend using 200A CTs on the mains. Your mains are 125A and the cables look as though they may be pushing the 16mm opening of the 100A. You woud be future proofing in a world where electricity is growing, and gas is diminishing.
You seem to have been comfortable removing the panel cover. Your panel is not crowded. You can kill the main to install the branch CTs. The mains themselves are very accessible and should be pretty easy to install without getting near the hot terminal lugs. That said, if you are nervous, get an electrician or other experienced person.
The installation of CTs can be dangerous and/or cause hazardous situations resulting serious injury or death. Worldwide, there are a variety of electrical conventions, regulations and standards. It is the user’s responsibility to insure that the installer is qualified and all local codes and regulations are followed.
Is there anything in particular I should be watching out for? (I’m in the US so standard 120/240 v service.)