France already made this the law. Any car park with 80 or more spaces has to cover half of it in solar panels, or pay a fine of 50 euros per space every month. The government said it could add as much power as ten nuclear reactors.
The hard part is building it. Carrefour, a French supermarket chain, is putting solar roofs over 180,000 of its parking spaces, enough to power the stores below. Disneyland Paris covered its main lot, which fits 11,200 cars. One car factory parks its staff under 64,000 panels that run about a third of the plant.
The reason people want this is land. If the US copied France, its parking lots could hold up to 800 gigawatts of solar. The whole US grid runs on about 1,144. A Yale study found that car parks in Connecticut could power more than a third of the state on their own.
Then comes the cost. Putting panels in a field is cheap, because they sit on simple metal racks near the ground. Putting them over a car park means a custom steel roof, strong enough to stand over moving cars and hold up in high wind, built without closing the lot. At that scale, a car park roof costs about $3.20 a watt. The same panels in a field cost closer to $1.90.
That price gap is why the rules keep getting weaker. France softened its own law in 2025, letting owners plant shade trees instead, though the biggest lots are still due by 2026 and the rest by 2028. The UK studied the idea for a year, then dropped it in May 2026, once it found that fitting an 80-space car park would cost around £140,000 and save about £28,000 a year.
The picture is right about one thing. Car parks really are the smarter place for solar: no farmland used up, shade for your car, and power made right where it is needed. The catch is that the smarter spot to build is also the more expensive one, which is why fields keep getting chosen.
Election Day should be a national holiday. No one should be working. We should be at the polls and then maybe a bbq as we wait for results to come in. There should be floats and parades. We shouldn't have to beg people to go out and vote. It should be celebrated.