Probably not 100% accurate, but the APC UPS on my nas build of similar design (xeon e3, 8x3tb red main array + 3tb scratch/hot spare + 2tb scratch + 500gb ssd

Probably not 100% accurate, but the APC UPS on my nas build of similar design (xeon e3, 8x3tb red main array + 3tb scratch/hot spare + 2tb scratch + 500gb ssd for jails) reports 30w when idle, 42w when reading from the array, 75w when transcoding in plex My energy bills aren't crazy, and I leave it on 24/7