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@rupert @stuartl @glyph I've looked it up now. You're right.

More useful definition is that 1J is the amount of work done to a body by applying 1N of force in order to displace it 1m. That can be done with regard to gravity or not.

@rupert @stuartl @glyph Well yes, but also I did mention that we were in standard gravity. So either you could call it an object of 1kg of mass, or an object that weighs 1kg of force in standard gravity.

Either way, I hadn't actually thought about that when I was writing it -- good catch.

@stuartl @glyph Ah yeah, in most utilities it's Wh. I'm coming from a Physics background, so metric is more common (if I recall, 1J is the energy required to lift a 1kg object 1m upwards in standard gravity).

@RichiH @bornach @GroupNebula563 @glyph so basically they're transferring as much GPU heat into the (evaporated) water as possible, and don't wanna do the hard work of cooling it down again, since it's easier to just pump in new water from the existing tap water infrastructure?

@stuartl @glyph Power is measured as watts, or joules ÷ time.

Energy is measured as Joules, or slightly obscurely, as Power × time, as in Watt-hours.

So a megawatt-hour is a measurement of energy. It's the amount of every required to run a Megawatt of power for 1 hour (or 1 watt for 1 million hours, etc)