I did call the company and asked if they would even sell me anything that would monitor my usage and she said go to home depot
Probes and panels sound scary to me..i dont do electric well so stay away from what i dont know. It's safer. Plus i have 2 - 100 panels, not one big panel. Everyone says it's a weird setup. I know in my boiler thread on this site where i posted pics you can see it if you are interested.
Ill just have to use my killawatt data and maybe back into the spa usage. I expect it to cost more but until just recently when i charted my data, i had no idea i almost doubled my bill! And during shoulder months i still find it hard to believe i'm still paying double what i used to. ie my May readings.
but if the spa is using 1/2 my juice, then moving that filtering and heating to the discount period of 7 cents vs the 10 i'm paying now, as much as i can, will save me huge $$$
of course contrarily if it runs more during the peak hours, i could be sunk paying 13 cents. This is why i want to really try to see how much the spa uses. Can i stand outside at my meter and figure that out while someone turns it on and off lol?