Why would I care about “Joules per hour”? What matters is power (Watts), and total energy used (Joules). “Kilowatt hour per month” is just an awkward way of saying “Joules per month”
Because total energy used is not what matters. What matters for most people is how much they have to pay. And they have to pay according to how many hours they were powering their devices with how many kilowatts.
People are – sadly – very uninterested in thinking about energy being indeed energy.
they have to pay according to how many hours they were powering their devices with how many kilowatts
Let’s see, power multiplied by time is… energy. So they’re paying for the total energy used. If they use 2 kW for their hair dryer and it doesn’t even come close to an hour of usage, they have to pay for that too.
Why would I care about “Joules per hour”? What matters is power (Watts), and total energy used (Joules). “Kilowatt hour per month” is just an awkward way of saying “Joules per month”
Because total energy used is not what matters. What matters for most people is how much they have to pay. And they have to pay according to how many hours they were powering their devices with how many kilowatts.
People are – sadly – very uninterested in thinking about energy being indeed energy.
Let’s see, power multiplied by time is… energy. So they’re paying for the total energy used. If they use 2 kW for their hair dryer and it doesn’t even come close to an hour of usage, they have to pay for that too.
It’s somewhat a wild assumption that the only electronic appliance a household uses is a hair dryer.