- cross-posted to:
- xkcd@lemmy.world
- cross-posted to:
- xkcd@lemmy.world
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Argh I hate how they never show installation costs upfront…
People think the cost of the panel is the most expensive, but it’s actually the 151 million km copper cable
Copper wouldn’t cut it, too much resistance. You need a superconductor… only problem is how to keep it cold enough at below 1000C.
Easy, just cool it with some sort of space refrigerator. Solar powered of course.
Net electricity arrived on earth after cooling cost: 1kwh/day
Why can’t we just wirelessly transmit the power, maybe have it hit a collection device that can harness about 4 kwh/m^2/day
Hey that’s not a bad idea. We could install these receivers on people’s roofs or in big parking lots
In units of JWSTs
Is it true that you can get 4kwh per day per square meter? My average electricity consumption is ~15kwh/day, so if I can potentially offset most of my grid usage with just 4 square meters of solar panel, that seems very attractive. I live in a tropical country btw.
No, 4kwh is about the daily amount of sun hitting 1 square meter. Solar panels can capture about 20% of that
Over the past year I’m averaging about 1.1 kwh per day per square meter on my system.
i would imagine living somewhere tropical might be even better
And if you follow, there may be a tomorrow
But if the offer’s shunned, you might as well be installing solar panels on the sun
So don’t delay, act now! Supplies are running out
Allow, if you’re still alive
Six to eight years to arrive in low solar orbit
