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Solar Panels


               
2022 Mar 27, 7:08pm   36,541 views  235 comments

by Eman   follow (7)  

Who here installed solar panels on their home? How has it been working out for you?

I did the math of Tesla solar panels. Cost is $17.4K after tax incentives. It would cover my monthly electricity bill of $230/mo on average. Add in a powerwall will increase the cost by $8k. Without the powerwall, it’s about 15% ROI. What am I missing?

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226   AD   2025 Nov 22, 1:24pm  

Silver accounts for roughly 5–10% of the total cost of a solar panel system, depending on silver prices and panel design.

📊 Silver’s Role in Solar Costs
• Material Use: Each solar panel contains about 20 grams (0.64 ounces) of silver, embedded in the conductive paste that carries electricity through the silicon cells.
• Industry Demand: In 2023, solar PV consumed 193.5 million ounces of silver, projected to rise to 232 million ounces in 2024.
• Cost Share:
• At ~$25/oz silver, the silver in one panel costs about $16.
• With installed panel costs averaging $150–$300 per panel, silver represents 5–10% of the hardware cost.
• For a full residential system (~20 panels, $15,000–$20,000 installed), silver contributes $300–$600 of the total.

🧠 Why Silver Matters
• Efficiency: Silver is the best conductor, boosting panel efficiency compared to alternatives like copper.
• Price Sensitivity: Rising silver prices (up ~100% since 2019) put pressure on manufacturers to reduce silver content or switch to copper metallization.
• Scaling Impact: As global solar capacity expands, silver demand is becoming a bottleneck—solar now accounts for ~15% of annual silver consumption.

⚠️ Implications
• Cost Volatility: If silver prices spike, solar system costs rise disproportionately, since silver is irreplaceable in high‑efficiency designs.
• Innovation Pressure: Manufacturers are researching copper and aluminum alternatives to reduce reliance on silver.
• Macro Link: Silver’s dual role as an industrial and precious metal means solar demand directly influences global silver markets.

✅ In summary: Silver makes up about 5–10% of the cost of a solar system, with each panel using ~20 grams of silver. Rising silver prices are a growing challenge for solar economics.
Sources: International Precious Metals Institute, Resource World, MiningVisuals
227   AD   2025 Nov 22, 1:24pm  

$$$ seems like silver will be one of the most major cost components of solar panels $$$


228   MolotovCocktail   2025 Nov 22, 5:20pm  

Forgot one more implication:

If silver prices skyrocket, panels on top of homes will suddenly go missing like catalytic converters on cars parked outside currently do.

AD says


Innovation Pressure: Manufacturers are researching copper and aluminum alternatives to reduce reliance on silver


But...but..I was told by 'experts' that commercial graphene/buckeypaper to deal with this was just around the corner!
230   Patrick   2025 Nov 30, 5:14pm  

I don't remember solar roadways.

Seems like it could be a good idea if technically possible.
231   REpro   2025 Nov 30, 11:53pm  

Patrick says

I don't remember solar roadways.

Seems like it could be a good idea if technically possible.


Progress is when technically possible meets profitability.
In new green deal progress is if: Pay for your guilt right now, you M*** F***.
232   WookieMan   2025 Dec 1, 12:30pm  

REpro says

Patrick says


I don't remember solar roadways.

Seems like it could be a good idea if technically possible.


Progress is when technically possible meets profitability.
In new green deal progress is if: Pay for your guilt right now, you M*** F***.

Skid resistance with tires and the road. It's a non-starter from a governmental level and also the solar aspect. I'm in the know. Engineers have alway laughed at this idea.

Traction aside, put a plow or salt on it? A semi at 80k lbs or an even heavier load and it's destroyed. It could only be done on pedestrian walkways and that would maybe get you 1k homes powered in the southwest. It was a 15 year high schooler idea that was just that, was never realistic.
234   WookieMan   2025 Dec 1, 4:19pm  

MolotovCocktail says




https://solarroadways.com/

https://youtu.be/qlTA3rnpgzU?si=G1HGlyUIkqYtkJlR

Yes there are retarded nut bags that think it is a good idea. Plenty of people have presented x,y and z inventions but it doesn't happen. It's a marketing scheme to make money and provide nothing. They made a 10'x10' pad for $10k and got a couple million out of it.

Solar has to be angled to provide the most bang for the buck. Throw in the elements and weight of vehicles it's a non-starter. And then government restrictions on skid resistance. Like I said, a high schooler science project idea. Not happening in 99.9% of the cases with ideas like this.
235   Patrick   2025 Dec 1, 9:00pm  

An area about the size of Georgia has been paved in the US. Seems like an awful lot of wasted energy to just heat the blacktop.

Maybe it could all be covered with roofs which tilt to face the sun and drop snow. Or maybe it's just pointless in cold climates.

Grok tells me that setting up only 1/5 of that area in the Mojave would suffice for all US electricity needs, if you could deliver it.

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