• Post Reply Bookmark Topic Watch Topic
  • New Topic

Solar Energy for pond pump  RSS feed

 
Anthony Shank
Posts: 7
Location: Brevard Co, Palm Bay, Florida
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I have recently installed a small pond in my back yard. It is approx 6ft x 6 ft x 4 ft. I would really like to use solar power for a pump so I can stock it with fish, but the pump I bought is very weak and only works if the sunlight is directly on it at all times. Can anyone recommend a good solar pump for this purpose? Thanks
 
Cj Sloane
pollinator
Posts: 3737
Location: Vermont, off grid for 24 years!
87
bee books chicken dog duck fungi solar trees
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Have you watched geoff lawton's "Creating a Perfect Permaculture Fish Pond with Cows" (link available in this thread)?

I thinks that's the one where he shows pump that operated on a battery charged by a solar panel. If that's not the correct video, post it here & I'll find the correct one.
 
David Swift
Posts: 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi, I just saw it on the other board of this forum mentioned a solar pump, which recommend by Andre souza
"Eco-worthy has promo now for 100w poly panel. Free shipping +5% discount, around USD$140
http://www.eco-worthy.com/catalog/100w-poly-solar-panel-from-stock-free-shipping-p-300.html ?"
and when I look at the website, I also found some pumps, just for your reference.
http://www.eco-worthy.com/catalog/solar-power-pond-water-pump-with-watt-solar-panel-p-331.html


 
Connor Macreno
Posts: 31
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
"the pump I bought is very weak and only works if the sunlight is directly on it at all times"

If you already have a solar powered pump that works when there is adequate light, have you considered using a concentrator to increase the light it receives?
 
Karen Walk
Posts: 122
Location: VT, USA Zone 4/5
3
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Connor Macreno wrote:"the pump I bought is very weak and only works if the sunlight is directly on it at all times"

If you already have a solar powered pump that works when there is adequate light, have you considered using a concentrator to increase the light it receives?


Be careful about overheating and cooking your panel.

In order to run the pump more often, you do need more energy. To use solar you can:

1. get more energy in through the panel you have - put it in a sunnier spot or CAREFULLY concentrate energy
2. get more energy by adding solar panel area
3. store energy for use when the sun isn't shining

I haven't purchased one yet, but I've done some research and it looks like silicon solar : http://www.siliconsolar.com/solar-fountain-pumps.html has some pumps that are better than your run of the mill hardware store solar pumps. They are more expensive, but include a battery and a solar panel large enough to charge the battery for night time use.

--
Karen
 
Connor Macreno
Posts: 31
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Heat may be a valid concern, but I bet it's manageable in this case.
If the panel is near the pump them it's near water. Even without an active cooling solution there will be some evaporative cooling in the area (not sure about the humidity, so this may not hep much). If it's a cheap simple setup it's not tracking the sun.

If it was me I'd just put some reflective panels to either side of it. I wouldn't try to increase the light it gets at noon, just angle them so it gets as much light a couple hours earlier and later as it does when it's faced straight at the sun. But I'm cheap and I don't like buying extra hardware if I don't have to. That may still not get you the results you want, but it should cost almost nothing to try.
 
wayne fajkus
Posts: 764
14
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Im not surewhat kind of pump you have now and what you want to spend.
There are several ways to work around it. A bilge pump for a boat is prob $12. A marine battery to power it prob $70. A timer (turns it on for 30 seconds then off for up to 5 minutes) runs $45. Its another boat item. That would last a while, then recharge it. Prob another $50 for a pv panel to maintain it. This would get you working even at night.

There are also pumps designed for a 15 watt pv panel. No batteries but it only works when the sun is shining. Being separate pieces, you have some flexibilty on where the panel points.
 
allen lumley
pollinator
Posts: 4154
Location: Northern New York Zone4-5 the OUTER 'RONDACs percip 36''
58
books fungi hugelkultur solar wofati woodworking
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Anthony Shank : Also 2 possibilities, especially if the water falls 10' or more on your property before it reaches your pond (but not exclusively limiting ) -

There are several ways to ' naturally ' increase the aeration of your water, most of the purpose of water features in ' Far Eastern ' water gardens aids
aeration !

You can do a search for the 'Trompe' Systems dating back to the 1600s and compressing and storing air trapped within falling columns of water !

There are no moving parts, or any thing to wear out !

there is a surprising amount of information here.

Goto our search engine page, Enter Trompe , scroll down -enter 'all forums' , and go back a couple of months !

On a totally flat pice of ground you can dig a hole, 10+ feet deep, to allow your water to fall down a well casing, with a chamber to hold the accumulated
compressed air ! The entire system with actually help keep your pond/pool from overheating during long periods of hot weather !

Good luck, For the Good of the Crafts ! Big AL!


 
Space pants. Tiny ad:
Video of all the PDC and ATC (~177 hours) - HD instant view
https://permies.com/wiki/65386/paul-wheaton/digital-market/Video-PDC-ATC-hours-HD
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!