Off Grid Solar Basics

by Liam O'Brien



$39.99 $29.99

SKU: OffGridSolarBasics Category: Tag:

Why Off Grid Solar is Better Than Ever

With the emergence of high quality used battery packs from automotive companies like Tesla, building your own high performance solar system has never been easier.

Let me explain, most people think that solar systems can only power a handful of items like a fridge, lights or a computer. This couldn’t be further from the truth.

Even with a small off grid solar system, you can easily run a small A/C unit, electric tank water heater, washing machine, electric cooking appliances (like an Instant Pot, electric griddle, toaster, air fryer) all without breaking a sweat.

Solar systems of the past use heavy, space consuming AGM or golf cart style batteries. They require ongoing maintenance, have a low discharge capacity, need to be replaced much more often and are ridiculously heavy. To put it simply, lead-acid batteries are ancient and have been replaced by Lithium-Ion batteries.

The goal of this guide, even for those of you that don’t intend on DIYing your solar system step-by-step, is to show you how simple, affordable, and relatively maintenance-free modern off-grid solar can be.

In our case study project, I was able to design a high quality 5kW solar system with nearly 20kWh of capacity at $3/watt. A local solar contractor is going to have a difficult time coming anywhere close to that price if including battery storage. 

Through the 80+ page PDF and bonus videos, we’ll go from start to finish about:

  • how to calculate how many panels you’ll need
  • how to size your charge controller and inverter
  • what size breakers you’re going to need
  • how many batteries you’ll need
  • what size of wiring you’ll need
  • how to wire your system safely

The idea here is to make all of this easy for you to understand so that you feel confident with installing your own system.

Our case study system has been featured on the DIY Homestead Projects YouTube channel and you can see many of the installation steps. But with this guide you’re going to a complete understanding of how all the components work together plus bonus videos only available with this course, where Derek (a former electrician) explains how to wire and ground this system properly.

If you’re at all interested in off grid solar whether or not you decide to install it yourself or have a contractor do it, then this guide will be a tremendous asset to your knowledge around off grid solar.

What you get

  • An 88 page PDF that can be described as the bible of off grid solar
  • A detailed materials and tools checklist, with prices, amounts and product links to everything used in our 5kW case study project
  • 45+ Minutes of bonus videos about our case study system that are not available on YouTube
  • Over 70 high quality photos showcasing the installation and final system
  • More videos that show how to use the included spreadsheets to design your own system with ease.
  • Lifetime support and any questions answered in our dashboard portal

Do it right the first time , or pay later!

The DIY video course includes everything you need to complete this project from start to finish.

Life time support

We are creating a community of DIY’ers who are on a mission to live the rugged individual life. Once having purchased this course you will have lifetime access to ask questions in the dashboard portal as you complete your project. If you ever run into any snags or have issues getting a project done, we are here to help you figure it out!

About The Instructor

Liam O’Brien is an electronics engineer, solar consultant, and amateur astronomer. Who, when not battling clouds in his home state of Connecticut, likes to design and build things for both the physical and digital world. He also has a passion for electric cars and off-grid living.

Let's Get Started!

If you find out that the Off Grid Solar Basics guide is not what you expected we offer a 14-day money back guarantee because we do not want to waste your precious time and money. We also trust if you order any of our video courses, then you are ready for this commitment to self-sufficiency. We also trust that if you have any questions along the way that you will ask us for help.

Frequently Asked Questions

Are the materials hard to find?

Nearly everything was purchased from an online solar store, eBay, Home Depot or Lowes. I tried to use widely available components and materials so that it would be easier to replicate.

I’ve included a number of places where you can purchase all of the major components like the panels, charge controller, inverter and batteries.

I even went one step further and included all product links and prices to nearly every little piece of wire that was used in our case study.

How much does it cost to build?

Solar system prices can vary based on a number of different factors such as location, roof mount vs ground mount, quality of components and panels.

Our case study system came in at a low price of $3/watt which includes Lithium-Ion battery storage, high quality LG solar panels and our panels were ground mounted (more expensive than roof mount).

How much time does it take to build?

It took about 6 days for our case study system to be installed. It could’ve been done quicker though.

Installing a solar system isn’t a huge ordeal compared to other building projects.


When you look down the line and see a perfectly straight fence, only one word can describe that feeling... satisfaction. Hiring a fencing contractor can cost thousands of dollars, save your money and do it yourself. My fencing video course that will teach you how to build a beautiful woven wire fence that will last 20+ years, increase the security on your homestead and protect your animals.

Rainwater Harvesting

Culvert Cistern Course


If you are looking to collect rainwater from your own roof and store it to use inside your home and around the yard, a rainwater culvert cistern is an effective, attractive option. Poly-tanks are easier to install but the aesthetic appeal of a culvert cistern is undeniable. Store your precious rainwater beautifully and I'll show you over the course of this 3 day video course.

$39.99 $29.99

Solar systems are sought after but also misunderstood. In this guide Derek and I will guide you through designing and installing your own off grid solar system using lithium batteries. We’ll take the guess work out of solar so you can install your own system and fulfill your off grid dream.