Energy generation and ideas for planned small motion pool

One should compare apples with apples. How big is the neighbor's pool, is it used as often, filtration system, circulation, etc...? That's why I said it's about heating. The costs for chemicals are comparable if volume and usage are comparable. Your swim spa could also be converted to saltwater, bromine, oxygen... Whether a cubic meter of water is in a pool with or without jets doesn't matter. I have named the variables.