Going off-grid is one of my favorite ways to unplug from the world.
However, even off-grid, we still need access to electricity for basic things like lights, cooking appliances, and keeping our fridge running cold. That’s where off-grid generators come in!
I’ve personally used several solar generators on my trips while camping and living off-grid in an RV, and I’ve compared them all to find the best solar generator for off grid living. Let’s dive in!
Table of Contents
- What is a Solar Generator?
- Why Use an Off-Grid Solar Generator?
- What Size Generator Do You Need for Off-Grid Living?
- What to Look For in a Solar Generator
- The 3 Best Off-Grid Solar Generators
- Off-Grid Solar Generator FAQs
- Other Off-Grid Essentials
What is a Solar Generator?
A solar generator is a device that converts solar power into electricity. It’s essentially a big battery pack with an AC/DC inverter that can provide 110 volt and 12 volt power.
But it isn’t technically a generator. It’s actually a power station. What generates the electricity are the solar panels you plug into your solar power station.
Here’s how it works, courtesy of Jackery:
But, for the sake of simplicity, I’ll refer to them as solar generators throughout this article, since that’s often what they’re called.
Why Use an Off-Grid Solar Generator?
A portable solar generator is an excellent way of staying off-grid for longer periods of time.
Since they don’t require fuel like traditional gas generators, you don’t have to come back to civilization to get more fuel. As long as there is sunshine, you will have power.
And, unlike most off-grid gas generators, solar generators are extremely quiet. In fact, unless you’re running a heavy load, you probably won’t even hear it.
The only time they make noise is if they’re putting out a lot of power and the cooling fans kick on. And even then, it’s nowhere near the noise of gas or diesel generators.
Finally, solar is a renewable energy, so you can feel good about your power usage. Yay!
What Size Generator Do You Need for Off-Grid Living?
The optimal generator size for off-grid living totally depends on your needs.
Most portable solar generators range from 160Wh to 2,000Wh. Of course, some come even smaller or bigger, but these are the sizes you’ll typically see.
The best solar generator for off-grid living depends on how much power you plan on using. For example, if you’re only powering small devices like lights or charging your phone, a tiny 160Wh to 500Wh generator would be more than enough for you to do everything you need indefinitely.
But if you have a fridge, maybe some cooking devices like a toaster or blender, and need to charge bigger devices like laptops, you’re going to want something bigger.
Personally, I’ve found that a 1,000Wh generator is the bare minimum to stay off-grid without running out of power. But I prefer even bigger, like 1,500 watts.
I run my fridge, a small water kettle, toaster, lights, and charge multiple devices. So use that as a point of reference.
Check out this article to learn more about what ohms, watts, and volts are if you’re unsure.
What to Look For in a Solar Generator
When it comes to looking for an off-grid solar generator, here’s what’s important:
Battery capacity describes how much energy your batteries will store, usually measured in watt-hours (Wh). This is the size I referred to earlier.
Obviously, the bigger the battery, the more electricity it can store and the longer it can power your devices before needing to be recharged.
There are two main types of batteries: lead-acid and lithium-ion batteries.
Lithium-ion batteries are superior to lead-acid in nearly every way – they can store more energy for longer periods of time, don’t require as much maintenance, and hold up for longer than lead-acid batteries.
Batteries put out low direct current (DC), which needs to be converted into alternating current (AC) in order to charge most devices.
DC current typically powers 12 volt devices, like anything you can plug into a car charger or cigarette lighter outlet. AC is what powers 110, 120, and 130 volt devices, which is the 2- or 3-pronged plug you see on most household devices.
You want to find generators with a verified pure sine inverter with high efficiency, as these create cleaner power with less energy loss in the DC/AC inversion process.
Power output is how much wattage the device can put out without triggering the breaker and shutting down. For example, the Jackery 1500 can put out up to 1800 watts at a time.
That said, you typically don’t want to put out more than 30% of the total capability consistently. So all of the devices you’re powering with a Jackery 1500 shouldn’t use more than 540 watts. The 1800 watt capability is for very short bursts (5 seconds or less), not for long-duration use.
Obviously, the higher the power output, the more devices you can power with your generator. Again, it depends on your personal needs.
Some solar generators charge faster than others. For example, most of the Ecoflow generators charge much faster than their competitors – in fact, it’s one of their selling points.
While some may need a faster charging time (so you can quickly charge via solar panels or a wall outlet), this may not be as important to others. Keep in mind that a faster charging time usually means a faster depletion time, so faster doesn’t always mean better.
Lastly, price matters. If one generator is slightly better than another, but at a way higher price, I’d go with the one that’s not quite as good for significant savings. But again, this comes down to personal preference.
The 3 Best Off-Grid Solar Generators
Now that you know what makes the best solar generator, let’s look at your options. In order of great to still good, here are my picks for the best solar generator for off-grid living:
I’ve been using Jackery solar generators for years, and they are my personal favorite.
The design simply works for ease of carrying and moving around, they’re super quiet, and they do exactly what they say they will.
Not to mention, they are extremely durable. I accidentally left mine outside in the pouring rain for nearly 30 minutes and it functioned fine afterwards. I even left it out overnight in freezing temperatures, and it had frost on it in the morning, but it’s still kickin’!
2. YETI Goal Zero
Goal Zero has a suite of portable solar generators that range from 150 watts all the way up to 6000! So you’re sure to find one to fit your needs.
My experience with the YETI solar generator was very similar to the Jackery. They’re both capable, durable, high-quality machines.
The YETI is a bit more expensive, but does offer a 2-year warranty versus Jackery’s 1-year warranty. So you get a bit more peace of mind with theirs.
In-depth review of the YETI GoalZero coming soon!
3. EcoFlow Delta
Our runner-up in the line-up is the EcoFlow Delta series. They’re a Chinese manufacturer and their main selling point is lightning-fast charging times—they can charge off a wall outlet in just one hour, or 4 hours from zero to full in the sunlight.
Price-wise, they’re almost identical to the Jackery lineup. The one downfall of these generators is the way they’re laid out—they are heavy and awkward to carry, and their plugs are on opposite sides, so you need to keep all four sides of the generator open.
They do have a cool app that lets you monitor and control the device, though, which the competitors don’t have! So this one is best if you’re at a cabin or somewhere with plenty of space to access all sides of the generator and you like the app-control feature.
In-depth review of the EcoFlow Delta Max coming soon!
Off-Grid Solar Generator FAQs
Here are a few common questions I’m asked about my generator:
How much solar power is needed for an off-grid cabin?
The average off-grid cabin usually requires about 7 Kw (or 7000 watts) of power to rely entirely on its own energy production. However, this number varies heavily on your own power needs.
Since most portable solar generators only go up to 3,000 Watts, you’ll most likely need several generators and plenty of solar panels to stay topped off and running at all times.
Check out this guide to learn more about how to calculate the exact amount of power you need.
What size solar generator do you need to run a house?
Usually around 5000 – 7000 Kw is enough to run most device’s in the average home. Obviously, the higher Kw you go, the better.
What will a 1000 watt solar generator run?
A 1000 watt generator can run several small appliances such as lamps, laptops, coffee makers, dishwashers, and even a slow-cooker. They can also run portable refrigerators, small power tools, and even a flat-screen TV if you’re so inclined!
They won’t be able to run most air conditioners, residential refrigerators, or heaters for any significant amount of time.
How big of a solar generator do you need to run a refrigerator?
It depends on the size of the refrigerator. If you’re only running a small portable fridge meant to be used in an RV or while camping, you can get away with a 1000 watt generator. But residential fridges will need 2000 watts or more.
Can you use a solar generator everyday?
Yes, you can use a solar generator every day. However, you should not run it 24/7!
A few tips to maintaining your generator include:
- Only use it for 8-16 hours at a time.
- Never deplete more than 95% of the charge.
- Store it at 30-50% charge rather than full.
Following these tips will help you get the most out of your generator and keep it lasting as long as possible!
Other Off-Grid Essentials
If you’re looking to live off-grid or in a van on the road, we have tons of other guides and tips to help you make the most of it.
Check out these other guides and essentials: