Results 1 to 4 of 4

Thread: Where to buy small solar panels?

  1. #1 Where to buy small solar panels? 
    Join Date
    Feb 2012
    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.

    Reply With Quote  


  3. #2  
    Join Date
    Apr 2007
    Moved from religion forum.

    Have you tried doing an internet search? The small solar panels are sold in lots of places.

    Reply With Quote  

  4. #3  
    Universal Mind John Galt's Avatar
    Join Date
    Jul 2005
    Where to find small solar panels? I would suggest around a K or M type star.
    Reply With Quote  

  5. #4  
    Moderator Moderator
    Join Date
    Nov 2011
    city of wine and roses
    Try a boating or caravanning supplies place. They've been using them for years.
    "Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen." Winston Churchill
    "nature is like a game of Jenga; you never know which brick you pull out will cause the whole stack to collapse" Lucy Cooke
    Reply With Quote  

Similar Threads

  1. Solar panels surface area and efficiency
    By 28rain in forum Physics
    Replies: 6
    Last Post: August 6th, 2010, 10:50 AM
  2. Living solar panels ...
    By Jarek Duda in forum Biology
    Replies: 23
    Last Post: September 3rd, 2008, 09:29 AM
  3. How are solar panels/power relates to physics?
    By mimichan in forum Physics
    Replies: 4
    Last Post: October 10th, 2007, 05:10 PM
  4. Solar panels made from ice.
    By Rebiu in forum Physics
    Replies: 3
    Last Post: May 28th, 2006, 08:26 AM
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts