I'm in the process of researching to replace my swimming pool pump. My current one nominally runs at 2850rpm and has a nominal power consumption of 1650W, but I

I'm in the process of researching to replace my swimming pool pump. My current one nominally runs at 2850rpm and has a nominal power consumption of 1650W, but I think I measured it at around 1100W. I imagine the maximum load is when starting and also if it has to "suck" with a large head. My pump is about 0.5m above the pool level. It is a 14 year old pump that is obviously just a single phase (240V 50Hz) AC induction motor. The replacements are permanent magnet DC motor driven, with a variable speed (presumably frequency and voltage) drive can control speed from 600 to 2850rpm. After priming at full speed for a few minutes (to purge air) it looks like you can then run it at say 1300 to 1800 rpm and save a coal truck worth of power. (I do have solar PV panels on my roof, but I am hoping maybe 1000kWh or more a year saving ).