this post was submitted on 13 Aug 2024
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[–] [email protected] 27 points 2 months ago* (last edited 2 months ago)

This sort of solution is, in reality, just another way for us not to address the root of the problem, which is that car-centric infrastructure is orders of magnitude worse for the environment and even just global warming than whatever benefit solar roadway roofs could provide.

  • Cars today mostly burn fossil fuels. EVs are better but are having slow adoption and are still quite energy-inefficient compared to e.g electrified public transit.
  • The cars have to have a bunch more energy dumped into them for procuring and assembling the materials compared to public transit.
  • Car-centric planning means extremely space-inefficient, sprawling design, resulting in the removal of natural ecosystems that help fight global warming through carbon capture.
  • The amount of energy that goes into building such massive parking lots and extensive road networks to accommodate car-centrism has to be unfathomable.
  • Car centrism physically makes things more distant from each other, meaning not only is the transit medium itself less energy-efficient over the same distance, but travel distances are much longer.
  • There can still be rooftops over above-ground public transit infrastructure, and even a fraction of the space saved on sprawling design could be used for solar farms.

TL;DR: [email protected]

[–] [email protected] 20 points 2 months ago (2 children)

This is one of those ideas that's just constantly claimed and constantly rebuked as unrealistic and not feasible

[–] [email protected] 7 points 2 months ago

To be fair, at least in this case it’s looking into putting the panels on a structure above the road instead of the more commonly suggested drive on panel variation. Still pretty unnecessary for most of the world as spare land is something that’s more abundant, but it might be relevant for more space constrained nations and islands where open fields are more expensive than already government owned roadway.

[–] [email protected] 0 points 2 months ago (1 children)
[–] [email protected] 3 points 2 months ago (1 children)

I'm not a fan of the guy so if you want his channel you need to search youtube but thunderf00t did a pretty decent if heavily sarcastic video, maybe 2, on why current solar panel roads are ridiculously stupid.

[–] [email protected] 7 points 2 months ago (1 children)

ah i think this is solar panel covering as in suspended above the road, not embedded in the road

in india i think they started suspending panels above their canals successfully, i think there are other plans for farms too, that even helps some crops to grow

[–] [email protected] 1 points 2 months ago (1 children)

I addressed raised panels in other comments as well.

They work really well in farm fields, and I'm pretty sure India has already begun installing panels on some farms to test for runoff complications.

Canals is a really good idea as long as the panels can be serviced easily without making them to tempting to steal.

Roadside anywhere will always fall to the problem that if you make something easy to steal by putting it on the side of the road, it will get stolen.

[–] [email protected] 2 points 2 months ago

Which is again, not what they're suggesting. This article was about putting the panels above the road

[–] [email protected] 9 points 2 months ago (1 children)

No no NO no No nO NO. This has been trotted out so many times and every time it fails.

  1. Embedded panels do not work it has been tested, even light traffic damages and reduces their absorption capacity.

  2. Raised panels do not work in large areas because the oily dirt from the road reduces absorption and requires constant maintenance.

  3. Large amounts of valuable equipment easily accessible on the side of the road becomes targets for thieves.

So much human time and energy is wasted on failed ideas.

[–] [email protected] 1 points 2 months ago

If you read the post you would know it's suggesting a completely different idea than the one you just refuted.

OVER the road and IN the road are not the same thing.

[–] [email protected] 7 points 2 months ago (1 children)

explores the potential to install solar panels above highways and major roads.

Oh thank god they use that option not replace the road with those horrid solar cells that underperformed in every test.

[–] [email protected] 4 points 2 months ago

SOLAR, FREAKING, ROADWAYS!

[–] [email protected] 2 points 2 months ago

So long as they're not trying to put solar panels literally in the road but instead as coverage above the road (blocking rain, snow, sun, etc.) then that sounds great.

[–] [email protected] 1 points 2 months ago (1 children)

This just in: deserts and parking lots exist and aren't swarmed by high speed traffic.

[–] [email protected] 1 points 2 months ago

The benefits of covering highways are more immediately visible (provide shade to cool drivers and reduce blinding by the sun).

I agree those other places have benefits.

Covering deserts will help cool them and reduce evaporation of moisture on the surface, possibly restoring the livability of a more diverse ecosystem. However, panels in the desert get dusty quickly, don't get cleaned by rain often, and would require water be brought in to clean them.

Covering parking lots would help cool cars, but I fear panels would be prime targets for vandalism.

[–] [email protected] 1 points 2 months ago

The world at large? Sure.

The US? Fuck no commie eco fascist! That's public money we could be throwing at Raytheon, Lockheed Martin and Boeing!

[–] [email protected] -1 points 2 months ago (2 children)

I mean. That's dirt cheap in the grand scheme of things.

[–] [email protected] 4 points 2 months ago

In comparison to extinction? Yes. In comparison to every other green option including other implementions of solar? No.

[–] [email protected] 3 points 2 months ago

Not really, embedded panels crack constantly and need replacement.

Lifted panels get covered in dust and oil and basically need constant cleaning, plus they get stolen at an alarming rate.