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jacquelyn sauriol's avatar

And then, the batteries to store all that nice 'legtricity. Another whole debacle, it seems.

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011101's avatar

15kwh per kg silicon seems low. If so, that's a good deal.

The next question is how much surface area does 1kg cover and I'm thinking its quite a lot, because it is wire sliced so thin. But even if it only made one 300w panel, it would pay off in about a week.

15000 / 250w (actual) = 60 hrs / 8hr per day = 7.5 days

For reference, my cars gas tank which I fill weekly, stores 0.5MWh of energy, or enough to make 33kg of silicon.

I have half of a used Tesla battery to power my off grid farm and will sell my panels on Craigslist one day for a third of what I paid and someone with more space will use them for many more years. They don't stop working at 20 years. I have installed used panels in the past and they work fine. My new panels are doped with boron which is supposed to decrease the degradation rate. Time will tell.

I would love to see a nuclear powered PV foundary! I'd buy that all day. Aluminum, silicon and glass are all electricity heavy. My county specifically prohibits nuclear power generation in my zoning area. Panels made by a nuke plant would be a consolation if I can't have an smr.

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