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Solar • Solar Panel Deal!

February 16, 2017 Murby 0

My wife and I will be installing a solar system this year.. We’re going to ordering a bunch of solarworld 270watt panels.. Made in the USA! Some of the highest quality panels made anywhere.. (google reviews on solar world if you doubt me)

The thing with big solar panels that are 3 x 5 feet is that purchasing just two or three of them is not worth the $300+ shipping cost to get them.. But we’re going to be installing 8000 watts worth of solar system so the cost is minor in comparison.

So with that in mind, if anyone in the Michigan area is interested in purchasing a few solar panels for emergencies, if you want to piggyback on my shippment, you can get them for about $1 per watt.. thats ONE DOLLAR per watt.. So a 300 watt panel would run you about $300.. instead of $300 + $300 in shipping costs.

When I have pallets of panels shipped to me, it won’t make any difference if I order 30 of them or 40 of them.

So if anyone is interested, let me know…. huge savings here..

Statistics: Posted by Murby — Thu Feb 16, 2017 2:43 pm


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Solar • Re: Fresnel lens

January 19, 2017 arkieready 0

I wondered if there were YouTube videos of a lens direct heating a Dutch oven. Yes! Combining lens and a homemade sun oven. Yup. Lens and reflectors. Indeed.

Statistics: Posted by arkieready — Wed Jan 18, 2017 8:05 pm


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Solar • Re: Fresnel lens

January 17, 2017 Argus 0

I have salvaged a couple of them from old projection TVs seen by the curb on trash day. TV repair places might have non-working ones, or you can find them on Craigslist. On a sunny day you can melt a penny with them, or boil water in a can as stated above, or start a fire in seconds. They can break easily. With a frame built of 1x2s slotted lengthwise by running them through a table saw or with a circular saw you can make a holder for it, but you’ll need to move it as the sun moves to keep it focused. Also, don’t look at the concentrated light with no protection, it will give you a heck of a headache and probably damage your eyes. I used doubled welding hood lenses and it seemed to work well. These lenses are capable of instantly charring skin or setting fires if left unattended, so use caution, the larger they are the more powerful.

Statistics: Posted by Argus — Tue Jan 17, 2017 12:55 pm


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Solar • Re: Fresnel lens

January 17, 2017 arkieready 0

Thank you, swamp, for posting the correct link. I mangled it.

That guy, Dan Rojas, has a nice site. Parabolics, too. And projects for water lens. Food for thought.

I have boiled water in a beer bottle with my cheap little lens. And burned stuff, of course.
But my idea was to combine a sun oven with a fresnel lens to cook quicker and hotter. Not done that yet.
I know distillation for clean water is doable. What about solar water heater plus fresnel lens boost? I’m thinking using a lens to boost any passive solar project would work. Including those passive solar “window heater box” thingies. Even off focus cheapies produce a lot of heat. My 5×7 $5 one was dangerous enough.
I still think there HAD to be threads or subjects here. Maybe they got lost in the move.

Statistics: Posted by arkieready — Tue Jan 17, 2017 8:03 am


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Solar • Re: Fresnel lens

January 17, 2017 daaswampman 0

Try this site. They are greenies, but have info, good prices, and good service. I prefer parabolic mirrors to fresnel lenses, but have both. On a sunny day I can boil a cup of water or solder with a mirror the size of my hand that weighs an ounce. Be careful as the big ones can cook a toe in a blink of an eye! I was lucky and only lit a shoe on fire! Swamp

http://greenpowerscience.com/index.html

Statistics: Posted by daaswampman — Mon Jan 16, 2017 11:47 pm


Solar • Fresnel lens

January 17, 2017 arkieready 0

Ok, I searched this place for threads on fresnel lens. I found exactly “0” results!!
Did they disappear or has no ever brought them up?

I have a few small ones. Green science power.com has videos and supplies for projects.
What have you done with them?

Statistics: Posted by arkieready — Mon Jan 16, 2017 8:10 pm