... and I'm quite surprised at the results.
Yesterday I played with different GPM settings on my pump, recording how many watts are used at each step, and calculated out the power usage. Now this will vary with different pools and plumbing, but either way I'm still quite surprised to see the results.
My goal was to determine what the most efficient setting was. Running slower is not always going to result in the lowest power consumption, but in my case it did.
But what REALLY caught me off guard is how little it costs per month to run my pump. If I turn over the full 44,000 gallons once per day, at the most efficient setting, which for me turned out to be 30 GPM, my pump only adds $3.29 per month to my power bill. Yes, this includes changing run time calculation when running higher GPMs.
Before yesterday, I had the misconception that it was much higher, based on the information provided to me by a third party, which we did our best to validate through energy usage from two identical houses 6 doors apart, one (that third party's) with a pool and one without.
Now, I don't know how much of the difference has to do with the fact that they were using a very inefficient single speed pump (they buy the cheapest thing they can find), but still, I think the numbers I was given were way overstated. They sincerely believe their pump added $100 per month to their bill.