[KPGv2]

Well, you replace bricks every couple hundred years, but solar panels every 10–20, right? Also a 2000W solar panel is like $300 or something and it's half the size of a door.

Unless a building is crowd-funded by the future tenants with the promise of no electrical costs, and also the future tenants expect to live like 100 more years, I can't see how this could happen, short of the eradication of private property and the government constructing these things.

[Chilko]

I get where you're coming from, but let me correct some of your numbers for other readers:

> you replace bricks every couple hundred years, but solar panels every 10–20, right?

Old panels perhaps, but modern solar panels come with performance warranties that guarantee they will be producing >85% of their initial output after 30 yrs.

> 2000W solar panel is like $300 or something and it's half the size of a door

2000W solar panels generally don't exist, so I assume that's a typo for 200W? Modern utility scale panels top out at ~700W with dimensions of 2.4 m x 1.3 m, however rooftop panels for commercial buildings are in the 500W range and ~ 2 x 1 m (so yeah about a door). International wholesale prices for these from Tier 1 manufacturers are now < $0.10 USD / W (although from what I understand more expensive in the USA).

[Wickedflickr]

Housing co-ops would be incentivized to implement those features. Our society should make it easier for co-op of all types to be created and thrive (such as through taxes), but especially worker owned and housing co-ops.

[Tepix]

You can get 500W solar panels for less than 40€ these days, so 150€ or so for 2000W. At German electricity prices, they pay for themselves very quickly!