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Solar for pond pump, fridge and emergency backup.

Featured Replies

I'm considering building a koi pond and also a carport/barn/guesthouse on my property and I've been wondering if a solar energy system with panels fixed to the south face of the roof would be a good idea for continuous power for the koi pond pump and an extra fridge. It could also be a nice backup for the power outages that seem to happen every other month. I'd at least have a fan or possibly a small AC unit in the second floor of the barn to duck into when the outages come. Any ideas? Thanks

Where do you live? 

  • Author

Pathum Thani

 

OK the first thing you need to define is just what you need to run when the mains is out, and for how long.

 

Important note: - A couple of lights and a fan soon develops into, the A/C would be nice and the kids can't manage without their internet / TV etc. etc.

 

You will need:-

  • A suitable hybrid inverter (you might as well use the solar to offset your energy bill when it's not actually performing backup).
  • Suitably sized battery pack.
  • Adequately sized solar array.

All of the above depend upon the answer to line 1.

 

I will say that our largest overall consumer of energy is Madam's ruddy koi pond with it's circulation / filter, air pump, UV thingy killer, all on 24/7/365.25!

And if it goes off the fish stop swimming and start floating 😞 

 

 

"I don't want to know why you can't. I want to know how you can!"

  • 4 weeks later...
  • Author

Thanks Crossy,

Yes, the pond is the main concern. If we are to have one, I would need a reliable power source. However, backup power would also nice.

I aim to build a simple 4mx5m barn/shop with a partial second floor (side walls only one meter high and a vaulted ceiling for storage and possible guest room. I'm considering a solar array on the southside roof and a carport roof on the north side of the structure.

By the way, did you have to do pinning for your pond? I live in Pathum Thani, and pinning for the house went down 20 meters. It would be a small pond, only 2m by 2m and 1. 5 meters dee, or about 5,500 - 6,000 liters of water. However, I'm afraid of it sinking.

With each cleaning of the pool we would use the drainage for fertilizing our gardens. Have you done the same?

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