lusil
Posts: 1
Joined: Fri Feb 17, 2012 1:32 am
Contact: Website

Re: Where to buy small solar panels?

Mon Feb 20, 2012 12:55 am

The fan I am insterested in requires a 20 watt solar panel. The fan runs directly off this panel and as the sun increases the fan increases speed. It would be hooked up to a thermostat so that it wouldn't start running untill the greenhouse is a certain temperature. The fan is .7 amps when 12vdc is used.

A light would be like 130 watts 2.1 amps 12vdc
This is just a normal light, so I can work in the evening. It is not for the plants. I am sure I can find suitable lighting elsewhere because the greenhouse place only offers this light.

I would like the battery to store power for the lights and maybe something else like a small fan.

I understand that the solar panels are NOT cheap however I just think that buying them from a company that specializes in solar products, rather than greenhouse products, would be smarter. Then I can buy the fan and other special stuff from the greenhouse place. I really only want a simple setup and right now my main concern is ventilation so starting with the simple battery-less system is fine with me. I can always upgrade later. Ventilation is a necessity as other things, like lighting, are not right now.

I have always wanted a greenhouse however I don't want to use more power for it. I am trying to build a greenhouse so I can get rid of some of my light stands and save energy.
I think that also building the greenhouse with a smaller projection from the house would also save money (less air space to heat by the sun)
I haven't fully determined what to do for winter heating yet though. We use a pellot stove mainly and will be buying a second one this summer hopefully. Our current one doesn't have a battery backup. I think the heating situation really depends on how much it does actually cost to heat. The "greenhouse heating cost" calculators don't predict it will cost too much to heat but I really don't believe them that much.

Lynbarn
Posts: 464
Joined: Wed Jan 04, 2012 11:03 pm
Contact: Website

Re: Where to buy small solar panels?

Mon Feb 20, 2012 1:00 am

Hi,

I'm not sure why you're posting here, unless you want to computer-control your fan, but have you tried Googling "cheap solar panels"?

That should give you 27,900 or so possible leads…

gimliflea
Posts: 76
Joined: Fri Nov 18, 2011 4:14 pm

Re: Where to buy small solar panels?

Mon Feb 20, 2012 10:44 am

Maybe he's growing raspberries for the pie in his green house

User avatar
Vindicator
Posts: 314
Joined: Sat Sep 17, 2011 11:10 pm
Location: Susanville Ca USA
Contact: Website

Re: Where to buy small solar panels?

Mon Feb 20, 2012 5:35 pm

I am thinking this poster is on the wrong website altogether from their post. LMAO if not I wonder if they would clarify.
If you are more worried about ,spelling, punctuation or grammar you have probably already missed the point so please just move on.

timn
Posts: 17
Joined: Mon Jan 09, 2012 4:38 pm

Re: Where to buy small solar panels?

Mon Feb 20, 2012 6:28 pm

For ventilation you need a solar-powered window opener. Go to Amazon and seach for: greenhouse window opener.

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