Solar fridge

03.01.2021

A zero-maintenance, brushless, thermostatically controlled DC compressor operates our 12 or 24 V DC refrigerator and freezer. A patented low-frost system reduces frost and moisture build up for low maintenance. High-quality construction provides excellent reliability and long life. Some models are available in 48VDC. Low energy consumption is the key that allows SunDanzer refrigerators and freezers to be cost effectively powered from solar, wind, fuel cells or batteries. This technology allows refrigeration in remote locations where it was previously unavailable or too costly.

These high-efficiency refrigerators and freezers have exceptionally low energy consumption, requiring smaller, less expensive power systems and low operating expense combined with thick insulation and refrigeration system optimized for solar, SunDanzer refrigerators and freezers provide outstanding economical and reliable operation. Features: Units starting from 5 watts average power! Extra thick polyurethane insulation Powder-coated galvanized steel exterior Aluminum interior Drain hole at bottom of unit for easy cleaning Low energy consumption is the key that allows SunDanzer refrigerators and freezers to be cost effectively powered from solar, wind, fuel cells or batteries.

Dealer Login.To keep food safe and consistently cool, refrigerators require access to a continuous power supply, so it may seem that solar power is not a viable option.

However, with the right solar power configuration and power requirement calculations, you should be able to run any refrigerator with solar power. A solar power setup suitable for refrigerator use requires several devices in addition to solar panels. Batteries are needed to store the power that the refrigerator will use at night or when clouds block the sun.

A device called a charge controller will smooth the flow of power from the panels to the battery. The charge controller protects the battery from drastic fluctuations in power and ensures that it always receives the proper voltage and current. Lastly, an inverter will convert the direct current DC power of your battery to the alternating current AC power used by the refrigerator. Consider the average power that your refrigerator consumes when designing your solar power configuration.

To determine the power requirements of your refrigerator, check the nameplate ratings, which are typically somewhere on the inside of the refrigerator. The nameplate ratings list the appliance's voltage and current demands.

For example, a fridge may read volts and 4. Multiply these two quantities to calculate its power demand: x 4. Look for a refrigerator with an EnergyStar logo, which denotes that the device performs with a high energy efficiency. A refrigerator uses power in different ways depending on its operating conditions.

solar fridge

If there are a number of cold items inside it or if the ambient room temperature is cool, it will stay cool longer. Hence, it will not need to turn on as often. When the air compressor on a refrigerator starts up, it needs a surge of power that can use three times the normal running current.

This surge happens only for a split-second. After startup, the fridge uses power according to the nameplate voltage and current.

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A typical solar battery provides 12 volts of electrical energy for a certain amount of amp-hours. An amp-hour is a way of describing a battery's capacity; it denotes how many amperes can be drawn from a battery and for how long. Typically, a battery is rated assuming a hour cycle. For example, a amp-hour battery would theoretically provide 8 amps per hour for 20 hours.

Most solar batteries will provide sufficient current for both a refrigerator and other appliances. Inverters, which are needed to convert DC battery power to the AC power most appliances use, are never percent efficient, and up to 50 percent of power can be lost in the conversion. Look for an inverter with a high efficiency rating and be sure to account for inverter inefficiency when calculating your refrigerator's power needs.

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Serm Murmson is a writer, thinker, musician and many other things. He has a bachelor's degree in anthropology from the University of Chicago.Or at least to save a few hundred kilowatt-hours a year. Most people think such a backward step in the evolution of modern civilization is a bit uncalled for, but it does draw attention to the drawbacks of modern refrigeration techniques. But there are other options besides resigning yourself to warm beer. Solar-powered refrigerators are pretty easy to come by these days, and they get around the energy-consumption issues associated with traditional fridges.

They also get around the fact that 2 billion people around the globe have no access to electricity in the first place [source: NASA ]. Some of us use it to power our homes; others buy carbon offsets that put money into solar and wind power to offset traditional energy use see How Carbon Offsets Work. Solar panels sit atop buildings, homes and tents and power cell-phone chargers, radios and the International Space Station ISS.

When sunlight strikes a PV cell, it heats the cell up. Heating the cell causes electrons to knock loose, and these electrons are converted into a stream of electricity, or current see How Solar Cells Work. One of the most common solar-powered refrigerators on the market, the NASA-licensed SunDanzer, uses this PV technology to power an otherwise mostly traditional refrigeration setup.

But one of the most recent developments uses "solar power" in a much more basic way. In this article, we'll take a look at both of these solar-powered refrigerators and find out what makes them tick. We'll start with the SunDanzer, which is based on technology developed to provide air conditioning and refrigeration on the ISS. How does a frost-free refrigerator work? The technology used to cool the International Space Station provided inspiration for the SunDanzer refrigerator.JavaScript seems to be disabled in your browser.

You must have JavaScript enabled in your browser to utilize the functionality of this website. Efficient refrigerators for living off the grid using solar panels for your home should be the most efficient, lowest energy consumption available.

Super-efficient electric refrigerators and freezers designed with 3 to 5 inches of insulation use only one third the energy of most standard units. This catalog shows the best of those solar designed refrigerators. They are the very best choice for smaller power systems. Standard freezers and refrigerators can use watt hours each day. You need to add about watts of solar modules in the best year round sunny weather to operate; more panels needed in less sunny areas.

Refrigerators that are specially designed for off-grid homes require fewer solar modules and less generator run time. All our refrigerators are rated in watt-hours power used per day. Watt-hours compare equally whether 12, 24, or volt units.

A refrigerator's need for power matches solar electric production — more power in summer and less in winter. Long term comparison is close either way if gas prices don't rise. An electric heater running nearly full time replaces the gas flame. They use much more power than any electric compressor, so they are not practical electric units. Sunfrost products have 4 to 6 inch insulation, and the compressor is on top where it can't put heat back into the box.

The RF model uses a total of watt hours a day, about watts of solar modules, depending on the climate. With the same Danfoss compressor as the Sunfrost, these are smaller refrigerators but use about the same power. Adding 2 extra inches foam insulation to all surfaces except the door cuts that power use in half.

Solar Refrigerators & Solar Freezers for Solar Distributors

Shop our selection of efficient refrigerators and freezers for off-grid homes below. Request a Catalog or Contact Us for more information on living off the grid. View as Grid List. This website requires cookies to provide all of its features. For more information on what data is contained in the cookies, please see our Privacy Policy page. To accept cookies from this site, please click the Allow button below. My Account Login. Shop By. Gas vs. Electric A refrigerator's need for power matches solar electric production — more power in summer and less in winter.

Sunfrost Sunfrost products have 4 to 6 inch insulation, and the compressor is on top where it can't put heat back into the box.

Solar Refrigerators & Solar Freezers for Solar Distributors

Page: 1 2 3 Next. Add to Cart Add to Project. Sundanzer 3. Sundanzer 2. Sundanzer SunDanzer 1.Good quality, highly-efficient DC fridges and freezers.

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All run from 12 volt or 24 volt batteries, charged by solar panels or from the mains. The electronics have over and under voltage protection, thermal protection and pressure protection in case the unit is disconnected and then reconnected whilst running.

solar fridge

Because of its efficiency, it takes the seasonal changes in solar-power systems to their full advantage. In the summer, when the days are longer and more solar power is available, the fridge may run longer because it is hotter.

In winter the reverse occurs, but their main attribute is that they perform just as well as volt fridges, but only consume a fraction of the power. The freezers undergo continuous laboratory testing for improvements. When I was visiting the factory, there were several models of the litre models being side-by-side tested for performance, to determine the model that had the best characteristics.

Dual temperature Freezer models — 2 compartments, 2 temperatures. These double-glass door display merchandisers are great for selling popular drinks and snack foods at fairs, markets, food vans where solar power can be used to keep the food cold. It will help increase sales of grab-and-go items liked bottled water, soft drinks, juice and energy drinks, along with sandwiches, salads, and prepackaged snack foods.

A robust, lightweight and flexible food service merchandising fridge, that runs directly from batteries, charged by solar panels, the vehicle or the mains, reliably in any location. The energy consumption of the Trailblazer units has been independently tested and verified by the Queensland University of Technology, and the World Health Organization. All Trailblazers are manufactured from 2mm thick marine grade aluminium, inside and outside, and use Danfoss compressors.

All units are tested in controlled temperature ovens at 43 deg C. See Trailblazer details here. Please Enter The Code Below:.Whether you are looking for off grid or for preparing for power outagessolar fridges can be just the ticket. I have reviewed the top solar refrigerators and freezers on the market and after reading this article you will know my recommendations.

Check the quick list below for links to customer reviews and prices for my picks, or read on for the full review:. You never want to have to worry about your refrigerator or freezer failing you if you lose power for an extended period of time, are in a grid down situation, or simply want to take cold snacks with you on the go.

Our DC-Powered Solar Refrigerators Freezers

I think that investing in the best solar refrigerator is the best way to make sure that you will be able to keep food and medications cold in an emergency. There are a few things that you are going to have to consider when you are looking to buy a solar refrigerator and freezer.

One of the first things that you need to look at is the size of the appliance you are considering. I also recommend looking for an appliance that can not only run on power, but also on electricity, as this makes it really easy to always keep your food and drinks cold. While you will likely want to use the solar panel most of the time, having the option can reduce stress and frustration, especially on overcast days.

solar fridge

There are a number of reasons why I think that everyone needs to invest in a great solar refrigerator and freezer. The first is that you will be protected in the event of a blackout or a grid down situation. Nobody wants to lose all of the food that they have stored in their refrigerator or freezer because of a power outage, but the only way to keep everything safe and cold is to have a solar appliance.

Once you have purchased your new solar refrigerator and freezer, then you never have to pay another penny to run them. Because they are powered by the sun, you never have to worry about receiving an electric bill for their use.

Additionally, if you love to camp and get out into the woods on a regular basis, then you will really enjoy having a solar refrigerator and freezer, as you can make sure that your food stays safe to eat when you are away from home.

I love taking mine camping as I can keep my food cold when away from home. Some of the features that solar refrigerators and freezers have really set them apart from others on the market. Just like with regular coolers, these appliances can get really heavy when they are full, so I recommend finding a refrigerator that has wheels. Larger wheels are, of course, better, as you will find it much easier to roll your food than to pick up the appliance and carry it with you.

In addition, a handle is really useful, as it will make it easy to pull the refrigerator and freezer along behind you instead of having to push it. Built-in expandable handles are simple to use and will telescope back into the side when not in use.

Read up on how solar systems work for more info. I think that this is something that a lot of people forget about and try to use it on cloudy days, only to be disappointed. Having reasonable expectations and looking for a sunny spot for your refrigerator and freezer is a good idea. Also, you need to make sure that you have the temperature set correctly in your refrigerator and freezer so that your food stays at a safe temperature.

I recommend always running your appliance without any food in it so that you can be sure that the temperature is set correctly and it is easy to control. If you are going to be running your refrigerator and freezer on AC or DC power, then you need to make sure that you have the correct adapter and that you are not going to blow a fuse. This can make trying to keep your food cold really frustrating. This can happen very quickly, depending on what you are cooling, which is why I recommend to check the temperature of the inside of your appliance on a regular basis.

When selecting a solar fridge it must be efficient and dependable. These models are well insulated and are built to last. The selection process for my picks focused on usability and the following models will not let you down. A word of caution. Even the best off grid solar refrigerator will only work as well as the solar panels used and the level of sun you receive. This great refrigerator and freezer combination offers 7. Thanks to the precise temperature control, you never have to worry about food getting too warm and spoiling.

It features four casters that make it easy to move the appliances to a new location in your home.When choosing an off grid refrigerator, there are many things to consider.

T he biggest decision being; should your power source be propane or solar? To ultimately decide on either propane or solar, you may want to answer these questions first:.

With these questions in the forefront of our minds, we aim to answer them in this article.

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So if you happen to live off-grid year round or even if you are only off-grid occasionally throughout the year with perhaps a summer cabin, fishing or hunting camp.

You definitely need a refrigerator for your cold food storage. Hauling ice is a hassle, not to mention it is expensive! But what direction do you go? Should you buy a propane refrigerator or a solar one? This is a common question folks have. Our opinion is this: the propane refrigerator is much more straightforward to use, and it is easy to maintain.

Additional benefits of propane refrigeration are that it is much more durable, as well as overall a propane unit is more efficient, and cost effective than solar. Hopefully, this article will prove itself useful to you as you ponder which direction to go. Propane refrigerators are simple.

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They are decidedly straightforward in their operation. A gas fridge has a cooling unit operated by a pilot light. In simple terms, this cooling unit and flame make up the whole system! The cooling unit continues to cycle the cooling vapors using the pilot light.

There are very few components to ever malfunction. Plus, propane units do not require sunlight!

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Generally, the service on a propane refrigerator involves cleaning the burner box…which is easy! In contrast, solar refrigerators use a compressor system made up of many different components and electrical pieces. Solar refrigerators require compressors, refrigerant solution, solar panels, batteries, controllers and other electrical wires and components to make the refrigerator run properly—not to mention the requirement for sunlight…and lots of it!

Next, propane fridges just last longer than solar fridges. Occasionally, a thermocouple or a thermostat needs to be replaced but even if you have no technical skills, you will be able to change them out yourself!

Plus, EZ Freeze fridges come with a maintenance video as well. Generally, all you need is a wrench or a screwdriver to change out these parts. This proves especially useful when living off-grid, where tools and maintenance services are scarce. Plus, the parts are very easy to get your hands on because they are made in the USA. Some can last more than 10 years, BUT when they do stop working or malfunction, getting them fixed is very involved.

You may not find the parts you need and it may require taking the fridge to a service repair establishment. The last thing you want to do while living off the grid is to spend your time and energy fixing and troubleshooting appliances. Your valuable time will be better spent tending to the other chores and necessities that come with living off-grid.