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Are You Ready Series: Off-Grid Refrigeration

Whether a person is planning for a hurricane, EMP or TEOTWAWKI, electricity or lack there of, will pose a problem to those that are not prepared. Off grid refrigeration could be the solution!

It is a fact that our entire way of  life is dependent upon gadgets of convenience and being tied to the grid. The grid supplies us with electricity, provides air conditioning to cool our home, the home’s main water supply is pumped by a fuel source, and our food is kept cool and fresh by the refrigerator in your kitchen. Did you know that your refrigerator consumes on average 8% of your monthly electric bill?  If  a sudden emergency were to occur, all the food in your refrigerator is spoiled.  Some individuals do not see this as a real threat to their well being.  However, the threat is real and entirely possible.

In an article at SHTF Plan, a physicist states that a solar flare is a real possibility and could pose a serious threat to our way of life.  This type of threat is such a concern that in the physicist’s own words believes, “We’d be thrown back 100 years.”

If we do find ourselves in a sudden long term emergency where the use of electricity is non-existent, what are our options as far as keeping food rerefrigerated?  Are you equipped and prepared to live in an environment where there is no electricity?  Many off-grid homesteaders have found a few solutions that could help us out of with this predicament and save us on our monthly electric bill.

Off-Grid Solutions for Refrigerating Food

Battery Powered Refrigerators – Many of the refrigerators that operate on 12v or 24v DC battery such as this refrigerator, were designed for those that live in smaller living quarters.  The DC motor compressor operates on 12 or 24 VDC. In comparison, the average off-the-shelf refrigerator operates at 250v-300v.  However, a drawback to this type of refrigerator is the insulation walls can be quite thin making it inefficient in terms of preserving the fuel source. Another drawback is it could be maintenance intensive.

Gas/Propane Refrigerators – A gas or propane refrigerator has no moving parts and use gas or propane as their main energy source.  Many boats, RV and off-grid homes use this type of refrigeration method. The average cost for a propane fridge is $1,000. Many would argue that these types of refrigerators eat through fuel, so plan accordingly. Of course, if you can afford a little extra, there are models that are “multi-fuel” — propane/AC, propane/DC, and propane/AC/DC (which might be the best way to go for “insurance” against a possible shortage of one fuel/power supply). Ideally, it would be advisable for the off-grid homestead using this type of refrigerator to have a natural gas well in order to have a continual free source of fuel.

Solar Powered Refrigerator – These innovative types of refrigerators use evaporation to cool the box off. Another type of solar-powered refrigerator works with the help of a solar panel.  By creating electricity with the help of the solar panels, it then uses the electricity like a normal plugin refrigerator.  Battery-free refrigerators such as the SunDanzer DDR165 Battery-Free DC can be hooked right into the solar panel.  Did you know that old refrigerator can be converted into solar-powered refrigerators? An article on Mother Earth News explains it all.  Here are some layout plans for a solar ice maker– just in case you were interested.


 Prototypes – The prototype zero-emission fridge doesn’t need gas, propane or kerosene and is powered by regular fire.  According to an article on ecogeek, “At that point, it begins to grow cold, and it is inserted into an insulated container of some sort of a jug or even a hole in the ground. It gets colder and colder, bringing the temperature of the container to just above freezing, and keeping it that way for about 24 hours.”  It is also fairly affordable too.  At $40 per unit, you can’t get any better than that!

Ice Houses – This is another alternative refrigeration source. For more information on this refrigeration source, click here.

If the SHTF, What Do I Do With My Refrigerator?

If a long term emergency occurs and you have consumed your perishable foods and no longer have the use for your electrically operated refrigerator, try one of these upcycled solutions:

  1. Convert it into a solar dehydrator or a solar cooker.
  2. Use your old refrigerator as a bulk storage container for preparations. This would be a great way to keep bulk preparedness items such as large 10-gallon containers of wheat berries, sugar, and beans out of contact with your food’s worst enemies.
  3. Additionally, some feel that due to the zero oxygen inside the refrigerators can be used as an anaerobic digester to create biodiesel.

Whether a person is planning for a hurricane, EMP or a full out TEOTWAWKI, electricity and specifically, lack thereof, will pose a problem to those that are not prepared. Finding which alternative refrigerator source works best for your family requires some researching on your part. Here are some additional articles that may be helpful:



http://eveningrainfarm.com/2005/08/refrigeration-off-the-grid/

http://www.backwoodshome.com/articles2/yago102.html

http://www.backwoodssolar.com/catalog/refrigerators.htm#SUNFROST

This article was originally published at Ready Nutrition™ on October 26th, 2013

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