Surely there's a better article on this topic. The opening paragraph starts out with two huge misses.

It quotes a price for "photovoltaic tiles" which is surely a price for a mix of photovoltaic and regular tiles. A mix that will vary in ratio depending on the house and location.

Then says "That’s nearly 20 percent cheaper than a normal roof — even without factoring in the energy savings." ... which is complete nonsense. They are obviously much more expensive than any non solar roof if you consider just the purchase price. Consumer Reports even concluded they were more expensive than a normal roof plus traditional solar panels, which seems expected as it's a nicer solution.

Getting a pop up on the article. Some spammy thing that prevents me from reading the article. It only allows me to open the advertisers page. I'd expect that clicking on some click bait not a HN article

"$21.85 per square foot. "

Ugh, define "normal roof"

Apparently one gilt with gold or something. Shingles are about $2.50 to $7.50 a square foot, installed.