Here in Australia the coldest state (tas) uses more energy (8600) than anywhere else (e.g. qld 5500). They have basically 100% hydro power and use reverse cycle AC for heating. Not sure what else is going on there.

>If you look at a state like Colorado, the energy usage is vastly different than Florida or Texas with lots of heat and humidity.

Electricity usage yes. Energy usage no. Household energy usage is lower in the warmer states, and higher in colder states. I would expect that CO household energy consumption would be higher than FL or TX.

> Household energy usage is lower in the warmer states, and higher in the colder states.

that's quite the assertion, what makes you believe it to be true?

Yes whoops. I should have made that distinction. The parent comment was talking about electricity, and that’s what I meant.

I would argue that the USA as a whole generally has more climate variability than the UK in addition to larger housing to account for the overall energy usage as well.