Best Standby Solar Generators For Home Use

Best Home Backup Standby Solar Generators 2019

Whether you are looking for a viable "off the grid" living option or want a backup power supply in the event of total power loss, solar generators offer a green solution that can be just as effective as gas and propane generators.

Backup power for the home is important and is a must-have as more and more of us rely on connected devices, phones and laptops.

Solar backup generators are not just for powering home appliances like refrigerators and air conditioning - more and more, they are being purchased to provide reliable backup power for critical medical devices.

For example, CPAPs are a popular way to treat sleep apnea and other dangerous sleep disorders. Without an adequate supply of power, things can get dangerous - fast.

The Problem With Gas Generators

Gas, diesel and propane generators have been relied upon for years for home power backup and emergency standby power for everything from hospitals to homes.  They are cheap, easy to maintain and widely available.

That said, gas generators suffer from a number of important drawbacks that solar generators completely avoid - as follows:

Fuel Supply

A gas generator doesn't store electrical energy. Instead, it converts fuel into electrical energy when you start it up.

To keep the lights on, then, you must constantly resupply a gas, diesel or propane generator with fossil fuel.  Doing so costs money to buy the fuel, unlike solar power which is free.

And what happens when your fuel supply runs out?  For some people, running out of fuel is more than just a lights-off annoyance - it can mean the difference between life and death.

In contrast, solar generators run on the power of the sun, which is 100% renewable, free and reliable. 


Loud noise is another issue with gas & propane generators. Most are really loud when they run.

In contrast, solar generators are completely silent.

Exhaust & Emissions

Burning fossil fuels emits toxic gases such as CO2 and carbon monoxide. This is why you have to run a gas generator outside

Don't even think about using a fossil-fueled generator in an enclosed space – if the noise doesn’t drive you crazy, the CO2 and carbon monoxide emissions could kill you.  

Exhaust and emissions are no problem with a solar generator, however -  you can even run one on your kitchen counter.

Solar generators offer a greener, renewable and more reliable solution to all of these problems.

Solar generators are quiet, lack any harmful fumes and exhaust, and are completely renewable. With a handful of well-placed solar panels, you can provide a FREE supply of backup power for your home.

Today, solar home backup power is within easy reach of anyone.

Over the past few decades, the steady march of technology has extended battery life and  made solar panels less expensive and more efficient.

As a result, solar generators have gone from a wildly expensive, fringe DIY project, to a user-friendly and affordable solution that anyone can purchase online.

The cost of a solar generator remains higher than a comparable wattage power gas generator, but considering all of the benefits, a lot of people today are choosing to go solar.

Today, you can select from dozens of solar generators designed for home power and standby backup.

Which ones stand above the rest?

Read on to learn about 6 of the most popular retail solar generators sold today.

NOTE: In addition to the retail generators listed on this page, you can find more expensive, permanently installed generator solutions from any licensed solar energy installer in your town.

Best Backup Home Standby Solar Generators: Comparison Chart

Goal Zero Yeti 1250
  • Goal Zero Yeti 1250

  • 1200Wh capacity
  • Sealed lead acid battery
    (100Ah, 12V)
  • 1200W continous 1500W surge pure sine wave inverter
  • Goal Zero Boulder 100 Watt Monocrystalline Solar Panel (Sold Separately)
  • Output:
    3 AC, one 12V, 3 USB

  • Weight:

  • Price: $$$

Be Prepared 2500
  • Be Prepared Solar 2500

  • 2500Wh capacity
  • Two sealed lead acid solar AGM Batteries
    (200Ah, 24V)
  • 2500W continous 5000W surge 24V pure sine wave inverter
  • Two 150W Solar Panels
  • Output:
    4 AC, 1 USB

  • Weight:

  • Price: $$$$

  • KISAE HS-1800

  • 720Wh capacity
  • Sealed lead acid battery
    (60Ah, 12V)
  • 1800W continous 3600W surge modified sinewave inverter
  • 80W monocrystalline solar panel
  • Output:
    4 AC

  • Weight:

  • Price: $$$$

Humless L-1500
  • Humless L-1500

  • 600Wh capacity
  • Lithium-ion battery
    (50Ah, 12V)
  • 1500W continous 2000W surge pure sinewave inverter
  • Foldable 100W polycrystalline solar panel
  • Output:
    2 AC, 4 USB, one 12V

  • Weight:

  • Price: $$$$

OG Solar 110
  • OG Solar 110

  • 1320Wh capacity
  • Sealed lead acid battery
    (110Ah, 12V)
  • 2000W continous 4000W surge modified sinewave inverter
  • Two 50W (100W total) solar panels
  • Output:
    3 AC

  • Weight:

  • Price: $$$$

Enerplex 1230
  • Enerplex 1230 Watt Generator

  • 1231Wh capacity
  • Lithium-ion battery
    (100Ah, 12V)
  • 1000W continous 2000W peak sinewave inverter
  • Goal Zero’s Nomad 100 watt solar panels
  • Output:
    one 12V, one 19V DC, 2 USB and one AC

  • Weight:

  • Price: $$$$

What You Need to Know About Backup Solar Generators

Standby Home Solar Generator

The solar generators on this page can be bought online and are designed for powering home appliances and lighting and for recharging vital electronics.  

That said, there are limitations and other things you need to be aware of when shopping for a home solar generator.

Very Few Solar Generators Can Power Every Appliance In Your Home.

Some heavy appliances like clothes dryers, water heaters and pool pumps consume a huge amount of energy that will sap any generator - solar powered, or not.  In general, a single solar generator won't power heavy appliances and devices for very long.

Mid-range appliances like air conditioners, freezers and electric ovens are far more energy-efficient today than a few decades ago. Most backup solar generators can power these for a single use between charges, but not much more.  

The sweet spot for solar backup generators is powering small appliances like LED televisions, toasters, and hair dryers. And, of course, keeping your electronics on and recharged.

Because of this wide gulf in power consumption among home appliances, you need to have realistic expectations when shopping for backup and standby solar generators.

The most powerful home solar generators are capable of keeping your refrigerator on, keeping your computer and electronics running, and powering a handful of lights and other appliances, but they are not yet able to match the full-home power supply of larger backup generators powered by natural gas and propane.

Still, solar generators are very useful backup power supplies in the case of a home blackout, because they offer so many advantages.

To make the right solar generator purchase, you'll want to have an idea of the required voltage and total wattage of the devices & appliances you want to keep alive during a blackout.

Use our handy appliance wattage guide to figure out how many watts you'll need to keep your most important lights, devices and appliances running

Then, look for solar generators that supply that level of wattage.  And make sure they have the right type & number of outlets (12V, 110V, 220V, USB, 2A, etc.)

If you are really committed to buying a completely renewable backup generator for your home and want enough backup/standby power to run your air conditioner and refrigerator for days, then you can always purchase multiple generators.

Some of the units below, like the GoalZero Yeti 1250, can be be chained together to supply more power.

Best Backup Home Standby Generators: Reviews 

Goal Zero Yeti 1250 Solar Generator Review

 Backup Standby Solar Generator

GoalZero is the most popular solar generator manufacturer today. Goal Zero's Yeti 1250 is the most powerful generator they offer. 

The Yeti 1250 is an effective backup home generator capable of powering several high-wattage appliances and devices at a time.  It can also be chained together to handle whole-home demands.


Goal Zero Yeti

The Yeti 1250 is loaded with user-friendly features that keep it simple and efficient.

First and foremost, this solar generator is really powerful for its size. The battery has a capacity of 1200wh and 100 am​p hours, strong enough to power several laptops and a small energy-efficient refrigerator.

The lead-acid battery in the Yeti 1250 lasts hundreds of recharge cycles and should last for many years.

This generator is chainable, so you can hook up multiple units to supply true whole-home power.

The Yeti 1250 has multiple outlet ports to power several devices and appliances at once, including 3 USB ports, a 12V port, and 3 AC ports. If you need to transport the unit, a cart is included with a collapsible luggage-like handle.

The Yeti 1250 is chargeable via solar panels, and can be recharged using AC and 12v power sources when the sun isn't available. 

The LCD monitor display screen on the Yeti 1250 helps you accurately keep track of the battery's current charge, remaining charge time and rate of power consumption.

Keeping The Vitals On

Goal Zero Yeti 1250 Silver With Black Solar Generator

The Yeti 1250's power output and fast charge time makes it a great backup generator to plug into during power outages.

The unit is powerful enough to keep a handful of vital appliances running for several hours, while providing numerous recharges to handheld devices and laptops.

This generator will keep the lights on, one television going, and the refrigerator running for many hours during emergencies.

Although the generator is a home backup, it is also portable, so it can be used for construction, workshops, and camping if you're willing to haul it around.


This generator isn't as powerful as some of its home backup/standby rivals. 

The Yeti's lead-acid battery can be a turn off for those wanting a lithium battery, which not only has a longer lifespan, but is much lighter as well.

The Yeti 1250 is also heavy - it weighs just over 100 lbs.


The Yeti 1250 is an affordable and user-friendly home power backup solution that will keep your critical appliances on and your electronic devices charged during any emergency.

Just don't expect it to power your entire home, unless you chain a few together.

Be Prepared Solar 2500 Watt 200Ah Solar Generator Review

Be prepared Backup Standby Solar Generator

This generator from Be Prepared Solar is a powerful, no-frills home backup or off-grid solar generator that can power several high-wattage appliances.

It's also designed for portability, so it's great for long camping trips and for off-grid living.


What this generator lacks in features, it makes up for in power. This solar generator can supply a whopping 2500 Watts of peak power.

It is recharged using two 150 watt solar panels that have a 25 year warranty.

The generator is contained in a simple snap-lid plastic case that has two wheels and a front handle for easy transport.

The case measures 32 x 18 x 18 inches, and weighs just 35 lbs, so moving it around shouldn't present much of a hassle compared to other backup units.

Be Prepared

Five total outlets are included with this model: 2 AC outlets are located outside, along with a USB outlet. Two more AC outlets are inside the unit. Although two solar panels are included, you can add more for a faster charge time.

This particular generator is suitable for home backup, but it can also be used for backup power and additional power for RV's and campers.

A charge controller is included for keeping the battery from overcharging.

Simple, Affordable, Abundant Power

This generator is designed to provide the maximum amount of wattage in the smallest and simplest package.

Smaller items like laptops, television, and phones can be powered and recharged numerous times during the duration of the generator's charge. Lighting will stay on all night if needed.


While it's certainly powerful enough to power 2500W (5000W peak) worth of appliances, doing so will run the battery down pretty fast, so items such as refrigerators, portable heaters and freezers should be connected on an intermittent basis.

As you may notice, this isn't the most user-friendly generator. There are no screens indicating power usage, and the unit arrives unassembled, so you'll need to put it together yourself.

Also, you will need to assemble this unit when it arrives, but it's painless.

The case is not very aesthetically pleasing, either, and hauling the unit around can be a bit awkward.


Despite its drawbacks, this generator is the definition of a home standby generator, delivering a lot more power than most generators in its price range.

If you have a basic knowledge of electricity and don't mind assembling your generator, then you'll definitely appreciate the value for money.

KISAE HS-1800 Home Power System Review

Home backup Power System

KISAE's HS-1800 Power System has the proud distinction of being the world's first complete home solar power kit.

This unit is powerful, efficient and affordable, and it includes its own solar panels, making it a true plug and play home backup solution.


The HS-1800 is built to be a standby generator that is ready for any situation.

It provides up to 1800 watts of output power and can be charged using the included solar panels or an AC outlet.

The unit is versatile enough to be installed anywhere, and provides easy access to all the power outlets, which are located in the front.

The HS-1800 has four total AC outlets, which is one more than most models in its class. One USB port is included as well.

HS-1800 Home Power System

The modular design of the generator means it can be upgraded and expanded to meet your specific power needs for your home and situation.

The unit also includes a charge controller for the solar panels, as well as a transfer switch, which allows for seamless electrical operation in the event of an outage.

This home backup generator weighs just 76 lbs, which makes it relatively easy to move around, when needed.

The HS-1800's small (14.5 x 10.5 x 14 inch) size makes it easy to store and to install it inconspicuously.

A Plug-and-Play Standby Generator For The Home

This unit is the one to get if you want automatic power standby during a brief power outage.

The HS-1800 looks like a standard gas-powered generator. And, like any home generator, it will automatically switch on during an outage. 

The HS-1800's design and power makes it suitable for powering large appliances, lighting and essential devices like computers and phones. 


The unit isn't as heavy as some other models, but it's not designed to be moved.

It lacks wheels and a handle on the top.

Carrying it would be comparable to carrying an old PC computer unit, only three times as heavy.

It's also not powerful enough to run most HVAC systems, clothes dryers or pool pumps.

The lack of an interactive status screen is unfortunate, as it leaves you no way of knowing the remaining charge left or charge time. That said, this unit is designed to be a set-and-forget standby generator that lives in your closet or garage.  How often would you check it, anyway?


The HS-1800 is a trustworthy, upgradeable standby generator that stays out of sight until it's needed, when your power goes out.

When the power does go out, it will kick-in and keep your most important home appliances and lighting on. 

Humless L-1500 Lion Generator Bundle Kit Review

Humless L-1500 Connected To Car

This generator kit from Lion Energy packs a big punch in a tiny package. 


Humless has been a well-known name in the generator industry for a while now, and their new L-1500 generator is vastly improved from the original model.

The generator features two modes: pass-through and normal. Pass-through mode allows the current to bypass the generator and feed straight into the device(s) plugged into it, whereas normal mode allows for the unit to charge without powering anything else.

The L-1500 utilizes lithium batteries as opposed to a lead-acid batteries, giving it a longer battery life while also eliminating the weight of lead-acid batteries.

Humless Solar Generators

The unit can supply a constant 1,500 watts, with a surge limit to 2,000, making it one of the more powerful units you'll find today.

The generator offers four USB outputs, two AC outputs, and a 12v output. An additional 12 V DC output allows for chaining to other units, which can supply your home with a significant amount of wattage.

The L-1500 weighs just 36 lbs, and comes with a removable strap for easy transport when needed.

The included 100 watt solar panel folds up for easy storage when not in use, and comes with its own 30A Anderson 21-ft solar panel extension cord, allowing you to obtain sun far away from where the unit is set up.

Reliable Home Backup Power

The L-1500 has been carefully designed and refined over time to provide a reliable source of energy in the event of a blackout or power failure.

It's powerful enough to provide power to large appliances such as refrigerators for 3-4 hours per charge. And it's light enough to take it with you anywhere.


The relatively small solar panels that come with this unit can take a long time to fully charge the batteries, so additional larger-wattage panels are recommended.


If you're looking for a versatile, lightweight generator that offers a lot of wattage, the L-1500 is perfect for your needs.

The large battery and small solar panels require more charging time, but the long-lasting power is nice to have during emergencies.

OG Solar 110 Solar Power Generator Review

OG Solar 110 Solar Generator

This 1500W generator from OG Solar is ready to use out of the box, complete with solar panels and a built-in power inverter to supply AC power.


The unit comes in a small 14 x 12 x 13 inches size, but provides a big 1500 watts of power.

The included solar panels are fairly weak, providing just 50 watts each.

The unit itself has a rugged housing that is strongly mounted to a floor dolly for easy transport.

The solar panels come with a 20 year warranty, while the generator itself has a full five year warranty.

All of the internal and external components, including the battery, extension cables, and other accessories are housed inside the dust-proof and crush-proof extra-hard case.

The unit includes its own power inverter, as well as a solar charge controller for battery protection.

Three standard AC outlets are included on the outside, right next to the main power switch.

What it's Good For

OG 110 Solar Generators

The unit is very basic and has an almost homemade look to it, but make no mistake – it delivers exceptional power for a long duration.

This generator does its job, nothing more, nothing less, for a great price.

The power is sufficient enough for larger appliances, and it can power smaller ones for hours upon hours.

If you just want to keep a few lights on while charging your phone, expect it to last days between charges.


The lack of a status display screen might throw some users off.

The unit as a whole weighs a hefty 100 lbs, so transport isn't the easiest thing in the world.

There are no 12v or USB outlets, which might turn some buyers off.


Overall, the OG Solar 110 solar generator does what it is supposed to do - it keeps your home appliances on when the lights go out.  If you have a entry-level knowledge of generators and circuitry, you can save some money with this one. 

Enerplex 1230 Watt Generator w/ Goal Zero Solar Panels Review

Enerplex Generatr 1200E Portable Lithium-Ion Battery Generator On Camping Trip

Enerplex combines a well-designed & quiet portable generator with Goal Zero's solar panels for a complete and powerful generator bundle that is suitable for partial home backup.

It's not the most powerful backup generator, but it is portable, self-contained and extremely well-designed


Measuring 15 x 12 x 21 inches and weighing just 35 pounds, Enerplex's generator offers up 1200 watts of performance, which it draws off of the included Goal Zero 100 watt solar panels.

The unit is also easy to move and carry, and provides enough power to make it a perfect backup or standby option at your home.

The generator has an easy-to-use interface. It supplies power through 3 USB ports, 3 three-pronged AC ports, an accessory port, and a laptop port. It's also one of the quietest generators we've reviewed.

All of the buttons and ports are clearly laid out and labeled, making it simple enough for anyone to figure out in a hurry. Which can be important during an emergency.

The unit also features a snap-lid compartment on the top for easy storage of accessory cables.

Solar Power At Home Or On-the-Go

Enerplex Generatr 1200E Portable Lithium-Ion Battery Generator

The 1200W capacity of this generator makes it capable of partial backup and standby use, and the size and weight makes it just as easy to grab and go for use on the road or at a campsite.

Unlike some other generators, the design and layout of the generator is anything but intimidating, and allows for anyone to use it in confidence.

Easy and efficient charging via the included panels makes the unit sufficient for repeated use during extended blackouts and outages.

The wattage makes the generator capable of supporting mid-range appliances such as mini-fridges and flat-screen television for several hours at a time.


The Enerplex 1230 is powerful, but the useful wattage does falls short of most home backup generators. The unit's screen could use an upgrade as well.


If you are looking for a backup home generator that is also portable enough to power a campsite or your boat, the 35-pound Enerplex is a great choice.  

This package can be hard to find these days.  If you can't find one for sale online, then a good alternative is the GoalZero 1250.​

How to Choose the Best Solar Powered Generator

Solar Generator

Things to Consider when Choosing a Solar Powered Generator

1. Solar panel output 

The first thing to consider is your PV (photovoltaic) output. That’s the amount of power your solar panels generate.

You need to make sure that the voltage and amps are within the limit of what the battery can handle.

You also need to check that your solar panels can charge the batteries quickly enough.

If it takes days to fill up your battery, your solar generator won’t be of much help, especially if you rely on it often.

If you want a powerful solar powered generator, get high-wattage solar panels as well.

But if you want a smaller standby generator to charge small devices like smartphones, a basic 100-watt solar panel will do.

2. Battery Capacity and Type

Battery capacity is expressed in amp-hours (Ah) or watt-hours(Wh).

Generally, for most applications, you want a solar generator with a battery capacity of at least 1,000 watt-hours.

This lets you power small gadgets as well as some appliances.

You can go lower to around 600-800Wh if you are only charging your smartphone or laptop.

But if you want something that can power a fridge or mini AC, look for a 2,000+ watt-hour generator.

A higher battery capacity not only lets you power more gadgets and appliances, but it also provides backup power for longer at night and in bad weather.

Note: The Wh rating of a battery is not its actual usable capacity. With most lead-acid batteries, you should discharge no more than two-thirds of the battery. So a 1,000Wh battery has a usable capacity of around 666Wh. Keep this in mind when selecting the right capacity for your needs.

It’s a good idea to get a bigger battery than you need.

As you consider what battery capacity suits your needs, also think about the type of battery.

Most solar generators use sealed lead acid batteries. They are inexpensive; they last relatively long and are reliable.

Solar generators with lithium batteries are more expensive. But they provide more power, higher charging efficiency, and a longer lifespan.

3. Inverter Rating 

Capacity doesn't tell you everything you need to know about the battery’s capability.

In addition to how much charge it can store, you also need to know how much power you can draw from it.

This determines what kind of gadgets and appliances you can power.

The inverter rating tells you how much power the battery can produce at any given moment. It’s given in watts.

The inverter is the part that converts DC power from the battery to the AC power you use to power appliances.

For small appliances and gadgets, a 1,000W-1,500W inverter is good enough.

For bigger appliances, look for a solar generator with an inverter rating closer to 2000W or higher.

Remember also to check the peak or surge rating. This is the maximum amount of power the battery can supply for a limited time, typically a few seconds.

Some appliances such as refrigerators and pumps require more power during startup.

In most solar generators, the surge rating is double the standard/continuous power rating. But check the specs to be sure.

4. Type of Inverter 

Don’t just check the inverter rating; also check what kind of inverter it is.

There are three types: pure sine wave, modified sine wave, and square wave inverters.

I won’t bore you with the technical explanation behind each type. Here’s all you need to know.

Pure sine wave inverters are the best but also the most expensive. They are more efficient, and most appliances work best and at full power when connected to a pure sine wave inverter.

Some timers, lights, and digital clocks will not work properly unless connected to a pure sine wave inverter.

Square sine wave inverters are the cheapest and the least efficient. They can only run basic appliances with universal motors. You are unlikely to find a solar generator with a square sine wave inverter.

Modified sine wave inverters fall somewhere between the above two types of inverters, though they are much closer to the square ones.

While modified sine wave inverters will power most appliances and gadgets, they are less efficient and can cause some devices to malfunction.

On the upside, a modified sine wave inverter is cheaper than a pure one.

But if you want a powerful and efficient solar generator, look for one with a pure sine wave inverter. The extra cost is worth it.

5. Output Options 

This is something many people forget to check when buying a solar generator only to discover they cannot plug in their fridge or charge their phone.

A good solar generator should have three output options: an AC outlet, a 12V DC outlet, and USB ports.

The number of each type of output varies. Some generators can have as many as 4 USB ports, maybe a couple of AC outlets and one 12V socket.

6. Portability 

Most standby solar generators require a degree of portability. This makes it easy to use them at the point of need, whether it’s in a specific room, outdoors or out in the wild.

Portability is also important in solar tracking, where you move the solar generator and panels to maximize sun exposure.

The lightest standby solar generators weigh about 30-40lbs. These are relatively easy to move around, albeit with some help.

Powerful generators can weigh close to 100lbs. Many come in heavy-duty casings with wheels for easier portability.

If your chosen solar generator doesn’t have wheels or is hard to move, consider buying a cart.

7. Extra Features 

Here are some additional features to look for.

Multiple recharge options: A solar generator you can recharge from a home wall outlet or out of your car’s cigarette lighter socket can be useful at night or in bad weather. Additional recharge options are also handy when you need to quickly recharge the battery (solar panels can take several hours or days to fill up the battery).

Stackable: Check whether you can connect multiple batteries for extra capacity. Some solar generators even come with ports you can use to daisy-chain several batteries.

LCD display: An LCD display lets you monitor how much power the solar panels are producing and how much charge you have left in the battery.

Fast charging USB ports: The USB ports found in most solar generators are the standard types. Some generators come with fast-charging USB ports that juice up your devices in less time. This is especially handy if you want to charge multiple devices.

Wireless connectivity: A solar generator with WiFi or Bluetooth connectivity allows you to monitor power consumption and PV input easily on your Smartphone. But with Bluetooth, you need to be in range. If the generator uses WiFi, you can monitor the system from anywhere.

Things to Avoid when Choosing a Solar Powered Generator

best solar generator

Here’s what to avoid when shopping for a solar generator.

1. Square-Sine Wave Inverters 

We’ve already discussed the three types of inverters.

Avoid square sine wave inverters; it unlikely you’ll find them anyway.

2. Very Low Capacity Solar Generators

Even if you are charging gadgets like your smartphone, tablet, and camera, it’s still a good idea to get a decently sized solar generator.

Don’t go below 600Wh.

If you plan to power an appliance like a CPAP machine, a coffee maker or a fan, don’t go below 1,000Wh.

You want a generator that can last at least a full day and night even on cloudy days.

3. Very Low-wattage Solar Panels 

The solar panels that come with some generators feel like tokens rather than a genuine effort to provide customers with a complete system.

A 50W solar panel will take days to charge a 100Ah battery.

Check that the solar generator comes with solar panels that can charge the battery in at most 6-8 hours.

One 100W panel or two 50W panels are good enough for most standby solar generators.

4. Low Quality or Suspiciously Cheap Solar Generators 

‘You get what you pay for’ holds up well when it comes to buying a solar generator.

Despite the potential savings, you are better off avoiding cheap off-brand solar generators, especially if they boast a high wattage and capacity.

Buy from a trusted brand with a reputation for high-quality products.

Setup of a Solar Powered Generator

set up solar generator

Installing an Off-Grid Solar Generator System

If you are going off-grid whether it’s camping, boating or living in a cabin somewhere in the woods, it’s essential that you harvest enough solar energy to meet your needs.

Solar Panels 

The first thing is to make sure you have the right number and capacity of solar panels. Your solar array should fill up your battery with a day’s worth of sunshine (at least 6 hours).

Monocrystalline solar panels are the best though they can be a bit pricey. If you are on a budget Polycrystalline will do.

Set up the solar panels where they will receive maximum exposure.

If it’s an off-grid house, roof mounting is the best. For RVs and camping, use a solar panel ground mount that you can move around to keep up with the sun’s position.

If possible, the solar panels should face south at an angle of about 30 degrees.

Charge Controller 

Most standby solar generators come with the charge controller built in or included separate from the main unit. So you don’t need to worry about buying a charge controller.

If your generator doesn’t have a charge controller, look for one that is rated for your solar array’s total output voltage and current.

It should also be compatible with your battery’s voltage.


The battery will also be integrated into the solar generator. It can be lead acid or lithium.

As I mentioned, a high ampere-hour or watt-hour battery lets you power more stuff for longer.


As with other components, there is no setup for the inverter. It’s integrated into the system.

You need to remember to turn it on when using the AC socket. This converts the DC power from the battery into usable AC power.

Installing an On-Grid Solar Generator System

For on-grid homes, you need to install the solar panels on the roof or ground, connect them to an inverter than connect the invert to your mains.

The inverter converts DC power from the solar panels to AC power that is compatible with your home electrical system.

Your home will use free solar energy during the day and seamlessly switch to grid power at night or when it’s cloudy.

If you don’t want a whole house backup system, you don’t have to do all this.

You can connect your solar panels to the solar generator. Then when utility power goes out, you can plug in your essential appliances and devices into the solar generator.

About the Author David Roberts

I'm a Mechanical Engineer who's obsessed with solar energy and sustainable living.

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