Another trouble is the builder doesn't have to pay for the energy usage of the property, and there's no well-established way for the buyer to estimate consumption like there is with mpg.

Is there nothing similar to an EPC[1] in America?

[1] https://www.gov.uk/buy-sell-your-home/energy-performance-cer...

Not really, but a letter grade is lacking a critical feature of mpg- anybody with a third-grade education can quickly estimate the exact gasoline costs of operating a prospective vehicle purchase. How do you translate a "B-" to dollars?

Maybe not on the home as a whole but every consumer major appliance comes with a standardized energy comparison chart.

Who wants less energy for more money?

> Who wants less energy for more money?

There are a lot of nutjobs running around saying they want Coal back, the President of the United States, for example, despite Coal being more expensive than Solar now.

So, to answer your question in earnest, Fossil Fuel Energy Companies and their bought-and-paid elected officials.

Those aren't people thst want less energy for more money, those are people that want to sell less energy for more money.

The people that want less energy for more (immediate) money are the people that want external costs priced into retail energy prices, but that's just because they don't want environmental damage to be treated as a non-cost.

Perhaps people who like good air quality

Probably everyone born in the next 100 years who will be subject to the externalities we currently allow.

Earth

OK, so then tax the power sources that have bad externalities, in proportion to how much they are a tally costing the world.

That's not really how it is now as some localities are massively subsidized by others.