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Solar powered PSU? 650+ wattage

post #1 of 7
Thread Starter 
Would this be possible?
I'm really looking into doing something unique(?).
post #2 of 7
Possible, sure, given enough resources. Practical? No.

This unit will net you 80 watts (at only 4.67 amps). I am not an electrical engineer so I can't tell you exactly what you would need to make such a setup, but I can tell you it would cost you somewhere in the range of three or four thousand dollars (or more).
Edited by tubnotub1 - 12/5/12 at 9:59pm
post #3 of 7
That sounds like a really cool and unique project. The only problem I see is that even very large solar panels are often only rated in a few hundred watts. We just don't know how to harness enough of the energy properly to power something with such a high power draw. You could look into adding solar panels to the roof of your house and hooking it into your energy bill. My provinical government in Ontario, Canada actually gives us loans to set up solar panels on our roofs and we just pay the energy company back in energy savings.
post #4 of 7
Thread Starter 
Well, I live on 50 acres of land, space isn't a problem, price is a factor, but I got a job. smile.gif
post #5 of 7
Quote:
Originally Posted by Failed Username View Post

Well, I live on 50 acres of land, space isn't a problem, price is a factor, but I got a job. smile.gif

Going by what tubnotub1 linked, you'd need at least 8 panels at a cost of $3700 for barely 37 amps and barely 650w. Financially sound? Probably not...
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post #6 of 7
if you have good battery reserves, it could pay for itself in as little as 5 years if your price per kw is high. The panels will last 30+ years so of you always build for 650w or you can shunt it to appliances it would be worth it in the long run.
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post #7 of 7
you dont actually need 650w. solar is a very stable power source. meaning it will charge your battery whether you use the power or not. you will NOT be using 650w 24hrs a day 7 days a week. so what you actually need is maybe 300 to 400w(depending on how often/long you use your machine) of solar power and a battery array large enough to support you through night time/cloudy days. in fact, you wouldn't even need that much if you supplement it with a small charger using the electric grid.

the real cost of solar is more on the battery array, those need to be replaced every 4 to 5 years and that isn't cheap. solar is something you decide to commit to for the long run. it's not just for a single computer.
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