Just signed in to the website my power company put up so we could monitor our usage through the new smart meters. Nifty site, although I hope they offer a way to download the data in CSV format or something. Right now I can only view their graphs.
But right away I see I need to do some load hunting. Last spring I did a week-long test where I carefully monitored what I had plugged in / turned on and read the meter every morning. One side-effect of that was I found i couldn't account for roughly 4-5 kWh/day.
The data the power company provides now is broken down into 15-minute increments, and - golly gee - it shows during the days when I am gone, and all my 24x7 loads are switched to solar power, I still have a 120-240W continuous load! The 240W segments I'm sure are when the fridge is running, so remove that wattage and I'm left with basically a 120-140W "base load".
Looks like I'm definitely using that power somewhere, now I just have to find it!
I do know of one CFL that has been on every day this week (laziness) but that's only 18W. Time to dig out the clamp meter I guess and start measuring circuits...! I wouldn't have thought the few things I can think of would draw that much "idle" current - alarm clock, clock in oven, doorbell transformer, silly things like that. I just don't have very many of them! Can't be the garage door opener, it too is on an outlet that switches to the solar system!
Will be interesting to see what I find...!