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  #11  
Old 12-11-2012
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Re: Running a fridge on a mooring...

Quote:
Originally Posted by sailortjk1 View Post
Only way to constantly run a fridge on a mooring is with a gen set, and I don't see that happening.
I ran my fridge all summer on a mooring using just solar panels, June through Sept up on Lake Champlain. I have a Honda EU2000i but never even brought it to the boat this summer. The batteries (house bank is 3 Group 27 for about 310 AH capacity) were back to full charge by early- to mid-afternoon. Never ran the engine for purely charging (as we used to pre-solar), nor did we use shore power all summer.

That was with three Kyocera 135W panels on the arch and a BlueSky SB3024i MPPT controller. Two panels would have handled the fridge (Danfoss compressor with L-shaped evaporator, no freezer (though milk or food in contact with the evaporator did tend to freeze) at about 5A drain on a 60-70% duty cycle.

If you have the space to mount them, solar is definitely the way to go for unattended power (and cold beer upon arrival).
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Re: Running a fridge on a mooring...

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Originally Posted by tdw View Post
Dual voltage or just plain 12v fridge. Junk the microwave. Solar panels.
A microwave should not be a problem as most people only use it to reheat things, and to pop popcorn, so it will have a max run time of 4 or so min. I think you can safely run that on an inverter, just remember to unplug it when not using it. They are pretty handy for most people. I hate them, but lots of folks love them.
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Re: Running a fridge on a mooring...

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Originally Posted by miatapaul View Post
A microwave should not be a problem as most people only use it to reheat things, and to pop popcorn, so it will have a max run time of 4 or so min. I think you can safely run that on an inverter, just remember to unplug it when not using it. They are pretty handy for most people. I hate them, but lots of folks love them.

Yep, you are quite right but for mine the disadvantages far outweigh pluses. To boot, me and the fair Wombet only ever eat popcorn at the movies. The only thing we use our microwave at home for is to heat milk for breakfast coffee, on board we just heat it on the stove beside the espresso thingy (stove top not electric).
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Re: Running a fridge on a mooring...

Doesn't ice get expensive over time, let alone inconvenient? Seems that most that don't have an electric refrigerator, don't bother with cold at all over time.

110v fridge is useless. 12v fridge, maintained with solar is civilized. JMO
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Re: Running a fridge on a mooring...

The Womboat has a 12v Danfoss job. We have two x 185 panels. We usually run engine for an hour a day for hot water. All good.

As for leaving fridge running when we are away from boat (long term) I'm not sure. I keep meaning to try it out and see how it goes. I reckon we'd need to keep the wind gen going if in winter.
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Re: Running a fridge on a mooring...

I've been running an Adler Barbour on a Mooring In SD for a few months on a solar setup with no problems. 230 Watt Panel with a Morningstar 15a MPPT controller and 4 CG2 batteries. I never see the batteries drop below 12.5 volts while on the ball with this setup.

Now I'm not sure at all if an "12v Fridge", an Engel and Adler Barbour are all "apples to apples" but its a fridge and its been running on a solar setup for at least 7 months now. The concept is totally doable.
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Re: Running a fridge on a mooring...

Quote:
Originally Posted by bassviking View Post
....Now I'm not sure at all if an "12v Fridge", an Engel and Adler Barbour are all "apples to apples" but its a fridge and its been running on a solar setup for at least 7 months now. The concept is totally doable.
They all seem to be about the same if the insulation and box size are the same. The Engle uses less elect. when running but seems to run longer. Here are a couple links that seem to bear out that the total amp/hrs to cool the portables are pretty close together...

http://www.arbusa.com/uploads/Newsle...dgeComparo.pdf

....and....

Ray's Caravans, Campervans & Motorhomes - Portable Fridges 1-

We use an EdgeStar in our Mac that....

Macgregor 26S Inside Mods page 22

.... is a 63 quart portable and 180 watts of solar kept up with it, a lot of computer time and a CPAP machine at night and some other smaller loads. We did run a gen-set for maybe 4-6 hours total in 3 months of use in Florida. The solar did all of the rest.

We made a larger box for the Endeavour that also has a small freezer section and it actually uses less electricity than the portable, but I'm sure that is because it has much more insulation....

Endeavour 37 Interion Mods Index

If you are in a pretty good sun area 150 watts of solar and a couple batteries should keep a smaller portable Engle or Danfoss type fridge running on a mooring no problem,

Sum

==============================

Our 37 Endeavour --- Our 26 MacGregor --- Trips With Both

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Re: Running a fridge on a mooring...

So it seems that it will be do-able with the right fridge/solar combo....cool

For this year I will use ice rather than invest in a totally new system but it is good to know that for a little extra $$$ I can have the convenience of a fridge. it is lugging the cooler and ice that will be a pain.
I still plan on a small solar charger and controller to keep the batteries topped off while on the can after a weekend of lights and music anyway so I will look for a system that can be added to down the road to handle a fridge.

Thanks again for all the replies, this is why I like forums...to learn from others experience rather than make the mistakes myself.
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Re: Running a fridge on a mooring...

Quote:
Originally Posted by Maine Sail View Post
This fridge however is VERY, VERY efficient...
That's the key. It's doable, but not with a typical dorm fridge and an inverter.
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Re: Running a fridge on a mooring...

Insulation is key.

A well insulated fridge will run off a 130w panel.

Regards,
Brad
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