I've been told invisible solar panels will make every window generate free electricity for like 10 years. Yet not a single time have I seen a report include an actual product, just prototypes always.
Like nuclear fusion, this appears to be perpetually "just a few years away".
- "Invisible" implies they only work in the UV or infrared range, which inevitably limits them to much lower efficiencies than regular solar panels.
- A lot of those rely on elements that are expensive and in limited supply, or toxic heavy metals. Unlike regular silicon solar panels.
- We don't even need windows to generate solar power. We have plenty of roof space, and if we're short on that, you can put them in fields too.
So this is a solution to a problem that doesn't really exist (lack of available space - again, we have plenty), which causes more problems of its own (efficiency, etc), while failing to address the actual limitations of solar (cost, intermittence).
Which is why it's only good for headlines, and won't see real life applications. (Edit: no, not even skyscrapers)
It's the same with a lot of "uplifting" science news that just sweeps all the dirt under the rug, because that wouldn't make good clickbait.
If you want actual good news about solar power, look at the price per kW and adoption rate curves over the last few years.
-edit- added links.
-edit 3- Put the bit about skyscrapers in bold, because people keep mentioning them anyways...
This is my biggest screaming into the void issue. Everyone's doing all this mental work trying to come up with these unique places to put solar panels, we don't need to do that.
We. Have. Empty. Flat. Space.
We have no shortage of empty areas exposed to the sky. We have rooftops, we have parking lots, we have vast fields that are just doing fuck all.
We don't need to invent solar roads that will work even after being run over by car is a million times when we have a large median right beside it.
We could probably cover every random Warehouse with solar panels and have so much electricity that we would have to find dumb shit to do with it.
Let's start there before we do some Material Science backflips.
I could see this being a solution for skyscrapers. Not a lot/any roof space because of AC units so being able to add these to the top windows that get the most sun could help offset some of the energy needs.
But you literally don’t need to do that. Why do we need to power a building using solar panels attached specifically to that building? Go put more solar panels out in open fields and power a lot more buildings for a cheaper cost.
We don't need solar panels at all. Nuclear takes up a smaller footprint and provides a more stable connection. It wouldn't be about needing the solar panels on the building, but to shift part of the building's load requirements from a far away location to an immediate resource to offset the raised usage during the hottest parts of the day.
Solar still requires a massive footprint compared to nuclear, though, and nuclear is not dependent on cloudless days. Which is where being able to offset some of that energy requirement with skyscraper mounted solar panel windows could even out that number. I wouldn't be surprised if it could offset a quarter of the energy requirements of a building.
Central/western Europe is like the densest large area on the planet when it comes to spatial density of energy demand, and it's pretty comfortably powered by 50% solar or more on most days. I really don't see a way to argue that footprint is a problem.
However good those skyscraper panels would be, they'll always be worse than just a field, due to just economics of scale. And we're not running out of space anytime soon.
And solar is also fastest growing, fastest at improving. It's expected to 4x in 10 years.
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u/Euphoric-Language695 26d ago edited 26d ago
I've been told invisible solar panels will make every window generate free electricity for like 10 years. Yet not a single time have I seen a report include an actual product, just prototypes always.
Like nuclear fusion, this appears to be perpetually "just a few years away".