I’ve read many conflicting reports on pay back periods, but they aren’t exactly spurring massive investment. So justifying it may require a shift in mindset. As long as there is some financial justification, the remaining decision can be based on conscience, beliefs, or pioneering spirit. I’d be more concerned about any ground breaking technology around the corner, and long term energy costs. Just my tuppence.
I’m not clear what is driving your pool electricity costs? The pump?
