As far as the Quick Mill Orion 3000 is concerned, my machine has a consumption of 1080 watts. That is around 1 KW per hour. If I never switched the machine off, it would have an annual consumption of 9,460.8 KW. The 287.4 would therefore be about 3.3% of the annual continuous consumption. This would correspond to a daily operating time of 47-48 minutes. HG