7 Best Off The Grid Solar System Packages for Preppers
An off-grid solar system package is a set of parts which when connected create a complete electricity-generating process by harnessing solar energy and converting it to usable power.
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If you are planning to go off-grid, chances are you are also thinking about a solar-charged power source. While you might consider buying a solar generator, purchasing and off the grid solar system package could be an even more tempting option.
An off-grid solar system package is a set of parts which when connected create a complete electricity-generating process by harnessing solar energy and converting it to usable power.
The main feature of off-grid solar systems is that they are not connected to a public utility grid as is the case with grid-tied solar systems.
Of course, any prepper will go for an off-grid solar power kit that makes the necessary electricity for their power needs. That means someone may want a package that simply lights their tiny off-grid home during the dark hours of the night, while another may want one that runs a big house full of power-hungry appliances.
This article will take care of both the prepper with small power needs and the one with high electricity requirements. We will review low and high-wattage solar system packages starting from the lowest to the highest.
As a preliminary, it’s important to know that when buying an off-grid solar system, most packages in the market may not be a complete set and are without the battery bank and the power inverter which you have to buy separately. A few, however, are complete solar kits, but of course a lot more costly.
On that note, before we review the best off the grid solar system packages, we’ll make a quick intro on the parts of a solar system.
Later, we’ll also tell you what to look for when buying an off-grid solar system package and the benefits and drawbacks of solar system kits. Don’t miss any of the details!
In a hurry? If you just want to get to our conclusions, here are our top picks and recommendations!
Solar panel is the common term used to describe the assembly of photovoltaic (PV) cells mounted in a panel for easier installation. PV cells absorb energy from the Sun’s rays and work with the other parts of a solar power system to convert the energy into electricity.
There are mostly 3 types of solar panels:
Monocrystalline Solar Panels: Built with silicon wafers that are cut from a single pure-silicon crystal.
Polycrystalline Solar Panels: Built with silicon wafers that are cut from fragments of silicon crystals melted together in a mold prior to cutting them into wafers.
Thin-film Solar Panels: Built from a variety of materials, mainly Cadmium Telluride (CdTe) that is lined between transparent conducting layers to capture sunlight.
Read the details about the efficiency rate, strengths, and shortcomings of each of the 3 types of solar panels in the buying guide section below.
Solar inverter / chargers (AC coupled) or Solar charge controllers (DC coupled)
Solar inverters/chargers have 2 main functions: convert DC power from the batteries into usable AC and convert AC power into DC energy to charge deep cycle batteries.
Instead, charge controllers send power in one direction by directly charging deep cycle batteries from solar cells and preventing power from going back to the cells when there is no sunlight. Charge controllers come as Pulse Width Modulation (PWM) or Maximum Power Point Tracker (MPPT).
MPPT charge controllers capture solar energy more efficiently and are faster in charging your battery. But they are also more costly, which is why you might find the PWM option more common in popular solar power systems.
Whether a solar system is AC or DC coupled is generally dependent on the size of the system. Most of the small scale off-grid solar systems (≤5000W) which is the size we’ll be reviewing in this article, are DC coupled and use solar charge controllers.
Battery bank
Battery banks store the energy from the PV cells that is not used immediately so it doesn’t go to waste. This is why you have power supply at night or on cloudy days when there is no solar.
Even though including a battery bank in your solar power system is optional, it is always better because you increase the amount of energy that you can utilize from solar panels.
In figures, you utilize 80% of solar energy with a battery bank in your system and only 40% without one.
Battery Inverter/charger or power inverter
Battery inverter reconverts the stored DC power to AC so you can use it directly to charge your appliances/devices.
Other solar system parts
Of course, putting together an off-grid solar kit may require more than these 4 parts. For example, you’ll need a combiner box to pool the solar power output from several solar panels and the connecting wires and electrical cables to draw power.
You’ll also need a monitoring device, current breakers, a PV module mounting kit, and an optional emergency power generator, which is recommended for off-grid solar systems.
See this video for a clearer idea of the parts of an off-grid solar system which you can also refer back to when you get to the DIY Solar Power System section later.
And now that you know the main parts of an off-grid solar system package, it’s time to see what solar panel kit options you can choose from, starting from the smallest in wattage to the largest.
7 Best Off-Grid Solar System Packages
The best off-grid solar system package meets your off-grid power needs and comes with all the features and components necessary for completing the installation.
But, as said earlier, most off-grid solar kits leave out the priciest component, the battery as well as the inverter, which means you usually have to purchase them separately.
As you’ll see from our 7 best off-grid solar system picks, when it comes to off-grid solar panel packages, you have them available in all sizes in the market. That means you can choose a solar system with as low as 50W or one with more than 3000W.
Best Minimum-watt Off-grid Solar System Package
50 Watts Mono Crystalline 12V Off Grid Solar Panel Kit
If you are seeking to be an off-grid “cheapskate” and only need to charge your cellphone and a light bulb for your tiny off-grid cabin, a solar system package with a 50W output will be enough for you.
This is also perfect for anyone who wants to charge their communication devices while on tour in their RV. The lowest lighting bulb wattage is 40 watts and your cellphone just needs10 watts.
The 50 Watts Off Grid Solar Panel package comes with 1 x 50W Monocrystalline solar panel, an IP65 waterproof intelligent charge controller, 3 x SAE cable kits-battery clamps, battery rings, a bare wire cable, and the installation manual.
The 50 Watts Off Grid Solar Panel Kit Specs:
Solar cell type: Monocrystalline
Watts/Voltage: 50 Watts at 12V
Charge controller type: PWM
Solar charger Amp rating: 10A
Mounting hardware included: No
What it can power: DC bulb lights directly from the charge controller. You have to purchase a battery and inverter to charge sensitive low power devices like cellphones.
Last update on 2024-03-28 / Affiliate Links / Images from Amazon Product Advertising API
50 Watts Off Grid Solar Panel Kit best features:
Lightweight; can be used in your small off-grid cabin, in an RV, boat, or trailer.
Easy to set up and install.
50 Watts Off Grid Solar Panel Kit downsides:
The PWM technology used in the charge controller has lower efficiency.
You have to purchase a battery bank and power inverter separately to be able to output AC power.
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Best 100 Watts Off Grid Solar System package
SereneLife SLSPSKT100 100W Kit
The SereneLife SLSPSKT100 100W Kit is another low-watt solar kit that is perfect for preppers and off-grid livers with low power needs. You can use it on your car roof to charge your car battery and other devices, in an RV, boat, or your tiny off-grid cabin.
The SereneLife solar system package comes with a 30A PWM charge controller, a 100W Monocrystalline solar panel, an anodized Aluminum frame to protect the solar cells, a foam box for safe transportation and storage, and a complete set of mounting brackets.
Last update on 2024-03-28 / Affiliate Links / Images from Amazon Product Advertising API
SereneLife 100W Kit best features:
Easy to set up and install.
Installation set included.
SereneLife 100W Kit downsides:
You have to purchase a battery bank and power inverter separately.
The PWM technology used in the charge controller has lower efficiency.
Best 200 Watts Off Grid Solar System Package
ECO-WORTHY 200W Solar Panel Kit
The ECO-WORTHY 200W Solar Panel Kit is a great starter kit for anyone looking for power to run low-power appliances in their off-grid cabin, charge an RV battery or fridge, or for other off-grid uses.
The solar system package comes with 2 x 100W mono solar panels, a 20A charge controller, 1 pair of 2-in-1 connectors, 1 pair of 16.4ft solar cables, and 2 sets of mounting z-brackets.
You can opt to complete your solar system package by purchasing a 12V Lead-acid battery and a 600W inverter from the same manufacturer.
The ECO-WORTHY 200W Solar Panel Kit Specs:
Solar cell type: Monocrystalline
Watts/Voltage: 200 Watts at 12V
Charge controller type: PWM
Solar charger Amp rating: 20A
Rated charge current: 80Ah (800Wh per day)
Mounting hardware included: Yes
1-year warranty
No products found.
ECO-WORTHY 200W Solar Panel Kit best features:
2 x USB ports on the charge controller (charge from battery).
Easy to set up and install.
ECO-WORTHY 200W Solar Panel Kit downsides:
The PWM technology used in the charge controller is slower and less efficient.
You have to purchase a battery bank and a power inverter separately for AC loads.
Best 400 Watts Off Grid Solar System Package
ACOPOWER 400 Watts Polycrystalline Panel Solar Kit
Whether you want to live off the grid in a tiny cabin or are looking for an RV solar kit, the ACOPOWER 400 Watts Solar Kit is a great choice.
With the purchase, you’ll receive a complete package of 4 x 100W Polycrystalline solar panels, an MPPT charge Controller, 1 pair 30ft 12AWG charge controller cable, 1 pair 8FT 8AWG controller-to-battery tray cable, four-set mounting z-brackets, a waterproof cable house-entry cable, and 3 pairs of PV T/Y connectors.
The ACOPOWER 400 Watts Solar Kit Specs:
Solar cell type: Polycrystalline
Watts/Voltage: 400 Watts at 12V/24V
Charge controller type: MPPT
Solar charger Amp rating: 40A
Rated charge current: 40Ah (520Wh/12V/1040Wh/24V per day)
Last update on 2024-03-28 / Affiliate Links / Images from Amazon Product Advertising API
ACOPOWER 400 Watts Solar Kit best features:
Uses the more efficient MPPT charge controller technology.
Has complete wiring and mounting sets.
ACOPOWER 400 Watts Solar Kit downsides:
The battery and inverter are not included.
The Polycrystalline solar panels may cost less but are less efficient.
Best 800 Watts Off Grid Solar System Package
Renogy RNG-KIT-PREMIUM800D-RVR40 Solar Premium Kit
The Renogy 800W Solar Premium Kit is for anyone looking for efficiency and reliability in a solar kit for their off-grid appliances or RV power needs.
The kit comes with 8 x Renogy 100 Watt Monocrystalline solar panels, 1 x Rover 40A Li-ion MPPT solar charge controller, 1 x BT-1 Bluetooth module, 8 sets of mounting z-brackets, 1 pair of 20ft 10AWG solar adaptor kit, 1 pair of 8ft 4AWG tray cable, 1 pair of 2ft 8AWG fuse cable, 1 x 40A ANL fuse set, 1 x 20A in-line fuse, and 1 pair of branch connectors.
Last update on 2024-03-28 / Affiliate Links / Images from Amazon Product Advertising API
Renogy 800W Solar Premium Kit best features:
Greater efficiency with the Rover Li 40A MPPT charge controller.
Complete mounting and wiring sets included.
Bluetooth module included.
Renogy 800W Solar Premium Kit downsides:
Battery and inverter are not included (you can buy the Renogy 12V batteries and inverter separately).
Best 1000 Watts Off Grid Solar System Package
ECO-WORTHY 1000 Watt Solar Kit
Any off-grid prepper looking for a solar system that can charge power-hungry appliances has one in the ECO-WORTHY 1000 Watt Solar Kit.
The package comes with 6 x 195W Monocrystalline solar panels, 1 x 4-string combiner box, 1 x 60A PWM solar controller, 6 sets of mounting z-brackets, 2 x 16ft red and black 12AWG cables, and 3 x solar cables with female & male connectors.
ECO-WORTHY 1000 Watt Solar Kit Specs:
Solar cell type: Monocrystalline
Charge controller type: PWM
Rated Voltage: 12V/24V
Solar charger Amp rating: 60A
Rated charge current: 60Ah (4000Wh per day)
Mounting hardware included: Yes
What it can charge: Fans, computers, lamps, air conditioners, and refrigerators among others.
1-year warranty
No products found.
ECO-WORTHY 1000 Watt Solar Kit best features:
High power output.
Comes with a combiner box equipped with efficiency and protection features.
Has complete wiring and mounting sets.
ECO-WORTHY 1000 Watt Solar Kit downsides:
Battery and inverter are not included.
The PWM technology used in the charge controller is less efficient.
Best >3000 Watts Off Grid Solar System Package
ECO-WORTHY 3900W Off Grid Complete Solar Panel Kit
If you are looking for a high-power complete kit, the ECO-WORTHY 3900W is the best off grid complete solar system package.
The off-grid complete solar panel kit comes with 20 x 195W solar panels, 1x 6-string combiner box, 1 x 60A PWM charge controller, 4 x 100AH batteries, 1 x 3500W 48V power inverter, 1 x solar cable with a connector, 5 x solar cable with female & male connectors, 20-piece set of z-mounting brackets,
ECO-WORTHY 3900W Off Grid Solar Kit Specs:
Solar cell type: Monocrystalline
Rated Power: 3500W running power and 6000W surge power
Charge controller type: PWM
Rated Voltage: 12V/24V
Solar charger Amp rating: 60A
Rated charge current: 100Ah (16000Wh per day)
Mounting hardware included: Yes
What it can charge: low and power-hungry appliances and devices including fans, phones, computers, lamps, air conditioners, refrigerators, and hand tools among others.
1-year warranty
No products found.
ECO-WORTHY 3900W Off Grid Solar Kit best features:
Batteries and inverter included.
High power output.
Comes with a combiner box equipped with efficiency and protection features.
Has a complete wiring and mounting set.
ECO-WORTHY 3900W Off Grid Solar Kit downsides:
PWM charge controller technology reduces the solar system’s efficiency.
You have to cough up a lot of money for such a large solar system.
Now that you know what you can go for, you might want to answer the question of whether you should go ahead and purchase one of these picks and what the benefits and downsides of doing so would be.
Should you Buy an Off-grid Solar System Package? (Benefits and Drawbacks)
Even though now you know the parts of a solar power system and the options in the market, you might still be having this question in mind: “Is buying an off-grid solar system package worth it?”
Yes. Buying an off-grid solar system package is worth it. Of course, that is for you to decide in the long run. But we’ll help you make the decision by considering the benefits and drawbacks of off-grid solar systems.
Benefits of Off-grid solar systems
People usually opt to go off the grid to live green and clean, reduce living costs, or obtain independence from public utility systems.
Whichever your reason for going off the grid, you will enjoy certain benefits if you choose solar systems for off-grid living or off-grid adventures.
Here are 7 benefits of off the grid solar systems.
Lower electricity bills
Using solar power systems reduces, to a greater percentage, the amount of money you pay monthly in utility bills. Even though you’ll need to cough up a good amount of money to purchase your solar system package, you’ll only have occasional maintenance bills.
Also, though it may not apply for off-grid living, those with off grid solar power systems for homes that are connected to a grid can send the extra power from their solar power system to the grid. They can then accumulate credit to use grid electricity when their solar system is down.
An eco-friendly option
You’ll be saving the environment a considerable amount of carbon emissions by opting for an off-grid solar system. Solar power systems are also a healthier option for you when compared to power options that burn fossil fuels to generate electricity.
Easy to adapt to your individual power needs
As you have seen from our off-grid solar system package picks, you can go for an off grid solar system design that suits your power needs, depending on whether you want a tiny or a large solar system.
Limiting your power supply to your needs will not only save power, but it will also save your bank account from extra expenses.
You can build your DIY off grid solar power system gradually
Because PV systems are modular, you can build your DIY off-grid solar power system gradually, starting with a few PV cells and increasing the number until you can produce all the power you need for your off-grid life.
Besides, their modular nature also allows you to transport your system should you decide to change your off-grid home location.
Great for emergencies
Unlike SHTF power generators that may fail you if you don’t find the powering fuel, solar power systems are great emergency backup power systems. With all other factors constant (that is your solar system does not break down) solar systems will sustain your power needs if you need to bug in for quite some time.
Minimal maintenance
Compared to off-grid power generators, off grid solar power systems are more reliable and do not require consistent maintenance. All you need is occasional cleaning for the solar system parts and a replacement of the battery bank depending on the life cycle of your model.
Increase your off-grid home resale value
The extra investment you put into installing a solar power system will pay off should you decide to sell your off-grid home. The solar system is factored in among the assets in your home when it is appraised.
Off-grid solar systems drawbacks
Despite the above solar power systems benefits, there are also a couple of drawbacks you’ll have to juggle with when it comes to off grid solar systems.
High initial cost
Solar power systems cost a good bit of money. Of course, you can go for a model that favors your budget, but these systems are not cheap. You’ll also need to consider the cost of setting up your system, especially if you involve a professional.
Solar power systems are bulky
The weight of your off-grid solar power system will vary with size, but these systems can be bulky especially when it comes to the solar panels and the battery bank. So, you need to factor in portability and transportation when you purchase your solar system.
Once you decide that an off-grid solar system package is worth it, then knowing what to look for is what you should know next.
What to Look for When Buying an Off-grid Solar System Package
Choosing an off-grid solar system package can be tricky, more so if you have meager knowledge about them. Besides, these systems are more complicated than off grid solar systems for homes that are also connected to the main grid.
Not to worry though, we’ve got you covered and we’ll tell you everything you need to look for when purchasing your off-grid prepper solar power system.
Because a solar power system is made of different parts, what you need to know when buying one is also tied to these parts.
Here are 5 core tips on what to look for in your off-grid solar power system package.
1. Choose a solar power system package with monocrystalline solar panels
Unless you have a limited budget, you should always opt for Monocrystalline solar panels. These are the most efficient among the 3 common types discussed earlier. Besides, they have a high lifetime value. So, if your pocket allows it, you should choose them over the other types.
See in the table a comparison of the efficiency rate, strengths, and shortcomings of monocrystalline, polycrystalline, and thin-film solar panels.
Solar Panel Type
Efficiency Rate
Strengths
Shortcomings
Monocrystalline
20%
High efficiency Best for high-power needs.
More costly
Polycrystalline
15-17%
Low cost
Lower efficiency Sensitive to high temperatures
Thin-film
7-10%
Easy to manufacture Portable and flexible Lightweight
Least efficiency Shorter lifespan
2. Ensure you have the right charge controller size and features
Because they take in a lot of heat and have to send it to the battery bank without causing damage, solar charge controllers must be picked rightly. That implies bearing in mind the right size for your solar system and the key safety features.
Charge controller size
To know the right size for your solar controller, divide the power produced by the solar panels by the voltage of the batteries to obtain the size of the solar controller in amps.
For example, if your solar panels are producing 500W and charging a 10V battery, your controller size should be 500/10 = 50 amps. But it’s advisable to include a safety factor by multiplying this value with a 1.2 allowance to account for power variations. In which case, 50 x 1.2 means your solar controller should be 60 amps.
Charge controller features
A good solar controller should also be able to withstand the heat of the solar energy and the hard work of continuous charging so it supplies power correctly to the batteries.
While solar controllers for large solar systems have fans, smaller ones have the advantage of having a simple passive auto cooling system in place of a fan. The advantage of that is that they do not consume the power generated from the panels to cool a fan.
Also, you won’t need to consistently repair the ever-moving fan or keep cleaning debris sent to your system by the fan. All these advantages mean that a fan-less (auto cooling) solar controller is more efficient.
Another key feature to look out for is whether the charge controller is made with MPPT or PWM technology. MPPT technology has greater efficiency and allows for faster charging. But PWM technology is cheaper and may is more commonly used.
3. Ensure the battery inverter/charger is the appropriate size and design for powering your appliances/devices.
If you are going to be running multiple appliances and devices at the same time, it is important that your solar power system’s inverter/charger can meet the power needs for those devices/appliances.
For example, the charge inverter for our highest-wattage pick, ECO-WORTHY 3900W Off Grid Complete Solar Panel Kit, has a 3500W inverter and can charge high-power appliances such as Refrigerators, large TVs, fans, and air conditioners without any problems.
To know how much wattage you’ll need your power inverter to output, list all the appliances and devices you plan to power and the number of hours you’ll need to power each of them. Then add up their daily power consumption need in Watt hours (Wh= appliance wattage use x number of hours). Increase the total wattage by at least 10% as a cushion for power inefficiencies.
Calculating your daily kWh consumption for all the appliances is also important in the purchase of the panel(s) and the battery bank.
Your charge inverter should also be designed to withstand other conditions such as high or low temperatures. Poor quality inverters often trip in these conditions.
4. Buy a battery bank that can last you 72 hours in an emergency
Battery banks are expensive, usually the part of a solar system pack that accounts for the greater part of the cost. But their ability to give you the most out of solar power systems outweighs the cost.
For example, you can choose to have a battery that stores 3 times the amount of wattage you need in a single day, which means you have power for the 72 emergency hours should SHTF or days become dull all of a sudden.
5. Go for the most efficient solar battery
Batteries normally come in two main types: Lead-acid or Lithium-ion.
Lead-acid batteries have been in the market for the longest. Their key advantage is that they can be recycled. But they are also lower in efficiency when compared to their Li-ion counterparts.
Lithium-ion batteries are high-efficiency, but they are sensitive to extreme temperatures and might not be recycled once their life cycle is done.
Most Li-ion batteries also contain a BMS that creates communication with the inverter in order to operate. If this communication is not established because the inverter is not compatible with the battery, your system will not work.
To avoid this, you can ensure solar battery efficiency through one of these decisions:
Ensure that the battery is compatible with the inverter before you purchase one.
Go for a self-managed Lithium-ion battery. Self-managed lithium batteries do not necessarily require a fixed communication with the inverter and are, thus, the most reliable battery option for off-grid solar systems. They can also be used to replace old lead-acid batteries and are compatible with most MPPT solar charge controllers and power inverters/chargers.
Note that, despite the higher efficiency of Li-ion batteries, most solar power packages come with a Lead-acid battery.
When you opt for a solar system package, most of the parts you need to install your solar power system are in one package. But you can also opt to put together the pieces and create a DIY solar power system. Find out how you can do that in the next section.
You have all the knowledge you need to purchase the best off the grid solar system package and start harnessing solar energy to charge your appliances and devices. But a few commonly asked questions are opportune here.
How Many Batteries do I need to go Off Grid?
Your battery capacity should be enough to meet your daily power needs in Watt hours (Wh). But because battery capacity is rated in Amp hours (Ah), you’ll need to convert the number of watts you need in a day to Ah to figure out how many batteries you need.
Since Volts x Amps = Watts, dividing your total power needs in watts with the volt capacity of your battery (say 12V) will give you the number of Amps in the battery.
For example, if your daily power need is 6000W, dividing that by 12 will give you 500 Amp hours. So, if your battery is rated at 125 amp, you’ll need at least 4 batteries to meet your power needs.
How Many Solar Panels do I need to go Off the Grid?
Solar panel output is indicated in watt hours. So, if you buy a 100W solar panel, which means it can produce 100W in an hour. To know how much it will give in a day, multiply that by the number of sunlight hours (daily solar panel output = panel watts x number of sunlight hours).
So, if your daily power needs add up to 6000W and a 100W panel is giving you 600W in 6 hours of the sun, then you’ll need at least 10 x 100W panels to meet your daily power needs.
Of course, your battery bank should have an equivalent (or higher) storage capacity as explained in the previous question. Your power inverter should also be equal in wattage.
Can I Install my Off-grid Power System by Myself?
If you feel up to the task, it is possible to set up and install your off-grid solar power system. Solar system packages come with an installation manual.
But, considering that a tiny mistake with an electrical setup can cause immense damage or injury, experts recommend that you employ the services of a qualified solar system installer.
You don’t want to damage any part of your costly solar system before you get to enjoy its clean solar energy.
Best Off the Grid Solar System Package Summary
Off grid solar systems are a complete set of components consisting of solar panels, a solar charge controller, a battery bank, and a power inverter. Connection wires, power cables, and mounting sets are also essential components of the system as well as a combiner box for larger systems.
When you want all your solar system components obtained in a single purchase, off-grid solar system packages are an optimal power option. Often though, the solar system packages in the market leave out the costly battery bank and the inverter, which you have to purchase separately.
You can choose a solar system package with low wattage if you just need to light your tiny off-grid cabin. But you can also go for high-wattage packages if you need to run power-hungry appliances.
The most important thing when choosing an off the grid solar system package is that it will meet your power needs and that the components that make the system are the most reliable ones in the market.
If you are up to the task, you can opt for a DIY off-grid solar system by purchasing each component separately. This may turn out to be a cheaper option. But, ensure that all the components are compatible with each other.
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