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#144292 - 08/15/08 07:26 PM Determining your roof's solar power capability
Blast Offline
INTERCEPTOR
Carpal Tunnel

Registered: 07/15/02
Posts: 3558
Loc: Spring, Texas
This site allows you to look at your house in google maps, overlay assorted solar panels on it's roof, then it calculates the amount of electricity you could generate based on your location, orientation, etc...

www.roofray.com

-Blast
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#144295 - 08/15/08 07:50 PM Re: Determining your roof's solar power capability [Re: Blast]
Todd W Offline
Product Tester
Pooh-Bah

Registered: 11/14/04
Posts: 1928
Loc: Mountains of CA
Wow, that is an awesome tool!

Thanks.
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#144305 - 08/15/08 09:19 PM Re: Determining your roof's solar power capability [Re: Todd W]
dweste Offline
Pooh-Bah

Registered: 02/16/08
Posts: 2463
Loc: Central California
Minus whatever your Home Owner Association has to say about it.

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#144345 - 08/16/08 01:32 AM Re: Determining your roof's solar power capability [Re: Blast]
Eugene Offline
Carpal Tunnel

Registered: 12/26/02
Posts: 2810
Too bad it doesn't work. I'm in a newer subdivision but the map doesn't have any images at the resolution they need so I have to zoom out to where my house is just a few pixels and then its impossible to select the first point again to finish, no matter how close I am to the first point it always draws a third far away. I was trying at work so it could be the worthless internet explorer web browser, were forbidden to load any decent one on.

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#144346 - 08/16/08 01:34 AM Re: Determining your roof's solar power capability [Re: dweste]
Eugene Offline
Carpal Tunnel

Registered: 12/26/02
Posts: 2810
I'm hitting that issue now, HOA rules say no solar but I wasn't going to stay in the ghetto just to have solar. I'm hoping they will get with the times, solar and other "green" things are the in thing now.

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#144347 - 08/16/08 02:22 AM Re: Determining your roof's solar power capability [Re: Eugene]
kd7fqd Offline
Enthusiast

Registered: 08/07/05
Posts: 359
Loc: Saratoga Springs,Utah,USA
If my calculations are correct it will take me 23 yrs to break even
It says my cost is $57,000
FWIW

Mike


Edited by kd7fqd (08/16/08 02:31 AM)
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#144349 - 08/16/08 03:17 AM Re: Determining your roof's solar power capability [Re: kd7fqd]
clarktx Offline
Enthusiast

Registered: 07/01/08
Posts: 250
Loc: Houston, Texas
$64,000 for me, and 21 year break even. More importantly, I can't go off the grid. I can only reduce my bills.

On the other hand, if I switched to solar I would certainly try to match my usage with my production. Its too bad the calculator can't take that into consideration, by assuming that you would decrease your household usage by 10%.
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#144350 - 08/16/08 03:20 AM Re: Determining your roof's solar power capability [Re: clarktx]
clarktx Offline
Enthusiast

Registered: 07/01/08
Posts: 250
Loc: Houston, Texas
I really wonder if the suncube actually works. I've been following them for over year now. They use a fresnel lens to concentrate the light on the chip, and active sun tracking to maximize the input. Seems plausible enough.
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#144361 - 08/16/08 04:30 AM Re: Determining your roof's solar power capability [Re: clarktx]
Todd W Offline
Product Tester
Pooh-Bah

Registered: 11/14/04
Posts: 1928
Loc: Mountains of CA
This is for a big system on my folks house: $90,316.45 after state rebate. 25yrs to repay, probably a bit less due to tons of free energy and me going easy on the avg bill. Their parents have one, it cost ~40k, and they sell back to the grid. Still we calc'd 20yrs to pay-off.

Like I said before there is Solar Power w/regular appliances and same-old living style or solar power off-grid with high efficiency electrics, 12v lights, and propane. This is the mix I`ll be going for.


Edited by ToddW (08/16/08 04:31 AM)
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Self Sufficient Home - Our journey to self sufficiency.

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#144567 - 08/18/08 09:50 AM Re: Determining your roof's solar power capability [Re: Todd W]
dweste Offline
Pooh-Bah

Registered: 02/16/08
Posts: 2463
Loc: Central California
More efficient photovoltaics are coming.

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