Where I live we pay electricity rates based on when we use it. Peak rate is between 9 am and 5 pm. The cheapest rate is from 7 pm to 7 am. I have a programmable, variable speed pump and have it set as follows:
Period 1 5:30pm to 9:30pm 2900 rpm
Period 2 9:30pm to 4:30am 1400 rpm
Period 3 4:30am to 8:30am 2900 rpm
i add my chemicals in the early evening.
With the schedule above I don't pump during the hottest, sunniest part of the day and of course wonder if that is a good idea. Trying to save money...and the planet Lol. Any concerns, or advice on pump times, and rpm.