I always enjoy reading stories about energy efficient houses in the popular press.
Here’s one: 
https://eastbayri.com/stories/the-science-of-zero,124814

The author doesn’t seem aware that net zero is becoming almost routine. 

At least there’s no mention of “thermal mass” for once. 

I had to chuckle at this section: 

The house has three separate solar arrays, all placed on top of flat roofs and hidden from view unless seen from above. Those solar panels feed energy into the command center of the home, which is a small hut on the south side of the property, known as the “battery shed.”

It contains eight lithium-iron batteries and a computer brain that is constantly measuring the power being produced by the panels and the power being consumed by the house and its systems. “The entire system is a micro-grid … and this brain is constantly trying to figure out how to be as efficient as possible,” Cabral said.

The entire system is backed up by two generators that can be fueled by 1,000 gallons of propane stored in a tank on the property.

Yours for only $7,995,000.