Well, the follow up answer is pretty straightforward.
Selling power by the megajoule is silly. You want a unit that puts time in the name and the unit of power that’s on appliances. If I run a 35 watt fan for an hour I know I’ve used 35 watt hours of energy. Or I can say I’ve used 126 kilojoules.
It’s not highschool. You don’t lose points for not reducing your answer all the way. The goal is to describe reality clearly, not to use the most concise units of measurement.
If I’m running a powerplant I need to know how many joules I get from my fuel and what my customers need and what my generators can deliver. The customer needs to know the efficiency of their appliances, and how how much that costs them. These are the same thing, but life isn’t made simpler by having them be the same unit.
Lot’s of people are confused by watts and watt-hours tho. I think having the power rating of appliences as a rate (J/s) is more intuitive. If I use a 5MJ/s fan for 10s I used 50MJ of energy. The only inconvenience here comes from our weird time conversions, so I think J/h would be more convenient
Well, the follow up answer is pretty straightforward.
Selling power by the megajoule is silly. You want a unit that puts time in the name and the unit of power that’s on appliances. If I run a 35 watt fan for an hour I know I’ve used 35 watt hours of energy. Or I can say I’ve used 126 kilojoules.
It’s not highschool. You don’t lose points for not reducing your answer all the way. The goal is to describe reality clearly, not to use the most concise units of measurement.
If I’m running a powerplant I need to know how many joules I get from my fuel and what my customers need and what my generators can deliver. The customer needs to know the efficiency of their appliances, and how how much that costs them. These are the same thing, but life isn’t made simpler by having them be the same unit.
Lot’s of people are confused by watts and watt-hours tho. I think having the power rating of appliences as a rate (J/s) is more intuitive. If I use a 5MJ/s fan for 10s I used 50MJ of energy. The only inconvenience here comes from our weird time conversions, so I think J/h would be more convenient