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submitted 9 months ago* (last edited 9 months ago) by [email protected] to c/[email protected]

The first commercial PV solar product was nah just in 1909.

See story above, and original article in Modern Electrics magazine in 1909:

https://babel.hathitrust.org/cgi/pt?id=mdp.39015051407073

EDIT

Since people didn't read past the headline, the article is about a startup company in 1905 that developed a commercial electrical solar panel by 1909 and was worth 160 million in today's money.

In 1909, the inventor of the solar panel was kidnapped and ordered by his kidnappers to destroy all information about this solar panel. He was eventually released, although he did not destroy the solar panel or his documentation, he did shut down his company.

So this is a pretty fascinating development considering that at this time period we actually did have early production electric cars that were manufactured in larger quantities than gas vehicles, and now we learn that solar panels were commercially available, at least for a short time.


And the solar panels could generate a fair amount of electricity:

500 volts per 10 square ft, and a smaller demonstration panel that was 3 ft x 4 ft could generate 60 watts of power (10 volts @6 amps).

Additionally, the panels were designed to charge a battery backup system.

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[-] [email protected] 100 points 9 months ago

I think it would have played out roughly the same. Energy density of fossil fuels is ahead of everything, along with it's portability. Not to mention no one knew or cared about environmental issues then.

Might have made the transition easier though.

[-] [email protected] 35 points 9 months ago

Some cared or questionned it. A local newspaper which is more than a century old, republished some old articles. One of those was about the coal consumption, how luch they comsumed back then, and how it would be consumed in the incoming decades, and asked what was going to be the outcome.

In the 30s, some english scientist pointed the raise of temperature too. It was minimal, but visible.

[-] [email protected] 7 points 9 months ago

Exxon had detailed climate change predictions in the 1970s:

https://www.science.org/doi/10.1126/science.abk0063

[-] SimplePhysics 53 points 9 months ago* (last edited 9 months ago)

I did not read any of your linked articles, but the answer is yes, fossil fuels most certainly would have dominated the 20th century because they are:

  • Cheap
  • Stable, you don’t have to depend on the sun shining
  • Nobody really cared about climate change back then, they were estimating a few centuries and humans… aren’t that forward thinking

Edit: I was beaten by another commentator lol

[-] [email protected] 6 points 9 months ago

LOL sorry bro

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[-] [email protected] 20 points 9 months ago

These solar panels must have been using some older technology fundamentally different from the one used in current solar panels because the PN junction, basis of the photocell, was not invented until 1939

[-] [email protected] 32 points 9 months ago

Likey also didn't contain rare earth minerals - no where near as effective but could have been less damaging and easier to make.

Then again, could have been a combination of arsenic, asbestos and cocaine so who knows.

[-] [email protected] 14 points 9 months ago

I was too curious:

Cove's device was a sort of thermocouple, and thus not based on newly-discovered natural processes or scientific principles. In the patent application the device was described as follows: A thermo-electric battery and appurtenances comprising a block of incombustible, non-conductive material, a series of pairs of elements comprising a plurality of elements formed of an alloy of antinomy and zinc, and a plurality of elements connecting said antinomy and zinc elements, said elements connecting said first-mentioned elements being alternatively of copper and of an alloy of nickel, copper and zinc.

https://journals.lib.unb.ca/index.php/MCR/article/view/17744/22231

[-] [email protected] 10 points 9 months ago

No such thing as too curious... unless you are a cat. Little dangerous there.

If im reading this correctly, and translated to english:

  • non conductive block

  • two different alloys - zinc and opposite to zinc (antinomy) v copper and nickle/copper/zinc.

  • assuming light hits, produces difference between metal and opposite metal, results in current flow through wire to equalize. Not sure how rare earth Nickle and zinc are, but suppose its not cobalt.

[-] [email protected] 5 points 9 months ago

So it’s a Seebeck Effect generator and really isn’t what we’d call a solar device today.

[-] [email protected] 1 points 9 months ago

Sorry - above my pay grade knowing what that is. Got a bit of education to get through.

[-] [email protected] 6 points 9 months ago

Basically when there’s a temperature difference been two different metals that are touching a small current is produced. You can also go backwards and use electricity to create a temperature difference (Peltier Effect).

They have niche applications because the effect is pretty small. Hardly a realistic substitute for solar panels that use the photovoltaic effect.

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[-] [email protected] 1 points 9 months ago

Seebeck Effect

This is how fridges work in reverse right? Apply current and make one side really cold?

[-] [email protected] 7 points 9 months ago

Fridges work on gas pressure - compress a gas it heats up, decompress a gas it cools..

[-] [email protected] 1 points 9 months ago

Wait.. then what am I thinking of? I'm sure this effect is used somewhere

[-] [email protected] 2 points 9 months ago

Looks like you are also a kiwi (that or an AI bot cus i see you everywhere) so probably in an electric chilibin- the reverse effect can be used to cool one plate of metal and heat up the other side.

[-] [email protected] 1 points 9 months ago

The whole internet is AI bots bro. You're the only real human here.

If I was a human though, I would be Kiwi. Kia ora!

Yeah, I think that's what I was thinking of.

[-] [email protected] 1 points 9 months ago

You are thinking of a thermo-electric cooler (TEC) or peltier cooler. They actually are used on smaller wine fridges but not full sized fridges. They are light-weight, electrically efficient, and reliable. They were also used in the early days of CPU overclocking.

[-] [email protected] 7 points 9 months ago

The device you're thinking of might be a peltier or thermoelectric cooler (TEC). But yes. They're way less efficient than a vapor compression refrigerator, though.

[-] [email protected] 2 points 9 months ago

Ohhhh.... Thanks!

[-] [email protected] 3 points 9 months ago

Like the very small fridges that work for a single soda can? Refrigerators use the liquid/gas transition to move heat around. It’s much more efficient.

The only real advantage of Peltiers are simplicity and size.

[-] [email protected] 2 points 9 months ago

Nickel and zinc are very common to my knowledge. And much easier to mine than lithium

[-] [email protected] 9 points 9 months ago

Oh, it's just a thermopile put out in the sun.

I can see why it never caught on then. You'd be relying on the difference in temperature between the hot side of a thing painted black put in the sun and the cool side in the shade. The amount of energy you'd get from such a setup would be infinitecimal. I'd expect you'd need to do an absurd amount of work and use an absurd amount of material just to power a single house.

The amount of energy it would take to build a "solar cell" thermopile that'd generate 1.5v with a quite high internal resistance would probably be in the megawatt-hours, likely from coal and oil.

[-] [email protected] 3 points 9 months ago

There were some numbers in one of the links I posted, hopefully that is able to give some solidity to the theory.

[-] [email protected] 2 points 9 months ago

It was early when I read the article, I got the impression that the 9W was for the furnace version of the thermopile electric generator.

[-] [email protected] 1 points 9 months ago

The larger versions generated 45, 60 and 240 watts. Another source said 500 watts.

[-] [email protected] 2 points 9 months ago

What is the typical conversion efficiency of a solar powered thermocouple?

"Cove presented his second solar electric generator there in 1909. This 1.5m2 panel could produce 45 watts of power and was 2.75% efficient in converting solar energy into electricity."

https://www.resilience.org/stories/2021-10-21/how-to-build-a-low-tech-solar-panel/

[-] [email protected] 2 points 9 months ago

I want to read more about this, as there is some speculation that the guy may have invented an actual PV panel. Difficult to say without more research... He was also a prolific inventor.

[-] [email protected] 14 points 9 months ago* (last edited 9 months ago)

Photoelectric efficiency was pretty bad back then. It had only been discovered in 1887. Einstein had just studied the photoelectric effect in 1905 and won a Nobel prize for analyzing it in 1921.
https://www.aps.org/publications/apsnews/200501/history.cfm

It wasn't like getting rid of the guy would've destroyed knowledge about it or the potential for the business. The devices were listed in the patent office and the technology was public knowledge. It just couldn't compete with cheaper and more energy dense sources like oil. Electric cars were a thing even in the late 1800s but the technology was so poor they lost to internal combustion.

[-] [email protected] 2 points 9 months ago

Interestingly, my parents remember electric milk delivery trucks in the 1950s & 60s.

The technology could have been improved if there was investment. Just look how much has been invested in ice vehicle drivetrains... It's a wonder they work at all!

[-] [email protected] 11 points 9 months ago
[-] [email protected] 7 points 9 months ago* (last edited 9 months ago)

Doubtful that it would have been very different. We would probably have more solar for home electrification. But with storage options being even less viable back then, we still would have needed a grid.

but the biggest benefit for fossil fuels were cars. And there I don't see how EVs would have been viable (yes, I know there were prototypes back then)

[-] [email protected] 3 points 9 months ago

Fun fact - for a short time, there were more electric cars than gas:

"In 1897, the bestselling car in the US was an electric vehicle: the Pope Manufacturing Company’s Columbia Motor Carriage. Electric models were outselling steam- and petrol-powered ones. By 1900, sales of steam vehicles had taken a narrow lead: that year, 1,681 steam vehicles, 1,575 electric vehicles and 936 petrol-powered vehicles were sold. Only with the launch of the Olds Motor Works’ Curved Dash Oldsmobile in 1903 did petrol-powered vehicles take the lead for the first time."

https://www.theguardian.com/technology/2021/aug/03/lost-history-electric-car-future-transport

[-] [email protected] 4 points 9 months ago
[-] [email protected] 3 points 9 months ago* (last edited 9 months ago)

Whoa, thanks for the link! Fascinating! So this WAS potentially an early non-silicone PV panel.

"If Philip Pesavento’s historical account and hypotheses are correct, George Cove set out to build a thermoelectric generator but accidentally made a photovoltaic generator – a PV solar cell."

"By mid-1909, Cove had moved to New York City, where he presented his third prototype, a solar array consisting of four solar panels of 60 watt-peak each, which charged a total of five lead-acid batteries. The total surface area was 4.5 m2, the maximum power output was 240 watts, and efficiency rose to 5% – similar to the first solar panel presented by Bell Labs. [18]"

Sadly, reference #18 does not actually list a reference but a statement by t Mr. Cove which is impossible as he is currently deceased.

[-] [email protected] 1 points 9 months ago

ITT: people who didn't read past the headline

[-] [email protected] 9 points 9 months ago

Maybe, but the result is the same. The arguments in the article sound good but aren't really that compelling. The points people make here are good.

This is one of the rare cases where the answer to a headline question is "yes"

[-] [email protected] 3 points 9 months ago

Put up a shitty leading headline and this is what you'll get.

[-] [email protected] 1 points 9 months ago

You weren't allowed to put your own headline up for these types of posts.

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this post was submitted on 17 Oct 2023
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