We Build the Docs the Solar Industry Never Made for You.
Beginner Solar exists because the gap between “I watched all the YouTube videos” and “I can build this correctly” is real — and expensive. We close that gap with field-grade documentation.
⚡ Start Free with the Load CalculatorNo card required • Instant access • Takes 5 minutes
The Problem Was Never the Hardware. It Was the Documentation.
Off-grid solar is not technically difficult. The physics are straightforward. The components are commodity hardware. The installations are — from an electrical standpoint — simpler than a residential panel upgrade. A motivated homeowner can absolutely build a system that works correctly and runs for fifteen years without a professional installer.
But most of them don’t. Not because the task is beyond them. Because the information available to them is not good enough to build from.
“YouTube will teach you to connect the wires. It will not teach you to calculate the cold-weather voltage your charge controller will see on a January morning — the number that determines whether it fails in year two or runs in year fifteen.”
Solar content online is optimized for views, not for installation. The creators who get the most reach are the ones with the most engaging builds — not the most technically sound ones. The cold-weather Voc calculation, the design-month rule, the 125% fuse sizing protocol, the pre-charge procedure — these are not interesting to watch. They are essential to get right.
Beginner Solar was built to provide the documentation layer that YouTube cannot. Not a video series. Not a buying guide. Field-grade reference documents — the kind that get printed, put in a binder, and used on the day of installation.
Every Number Has a Source. No Exceptions.
The standard we hold ourselves to is simple: every formula, every table, every protocol in a Beginner Solar document must trace to a manufacturer datasheet, an NEC table, or verified field data. Not a forum post. Not a YouTube calculation that “worked for me.” Not a rule of thumb that circulates because nobody checked it.
That standard is not common in DIY solar content. It is the standard applied on professional residential and commercial solar installations. We think it should be available to the owner-builder who is doing this themselves — not just the contractor who charges $150 an hour.
NEC Article 690 Aligned
The sizing protocols, fuse calculations, and conductor specifications in our documents are cross-referenced against the National Electrical Code. The code exists because the physics of what happens when you get these numbers wrong is predictable and preventable.
Worst-Case Design Standard
We design for your worst month, not your average month. A system sized for average sun hours in July will underperform every December. We use the design-month rule because it’s the only sizing standard that produces a system that works when you actually need it.
Written for Installation Sequence
Load calculation to commissioning sign-off, in the order you actually do the work. Not organized for readability — organized for use. You open the document on the day you need it and it tells you what to do next.
The Owner-Builder Who Is Done Guessing.
Beginner Solar is for the homeowner who has done the research, watched the videos, and still doesn’t feel ready to spec and build a system they can trust. Not because they lack the intelligence or the work ethic — because the resources available to them are not built to produce a correctly specified system.
It is for the person building an off-grid cabin, a backup power system, a van build, or a whole-property off-grid installation — who wants to do it once and do it right, and who is willing to read a spec sheet and work through the math if someone hands them the right document.
It is not for the hobbyist who wants to watch someone else build a system. It is for the builder who wants to build their own — correctly, the first time, with documentation they can put in front of an inspector.
“Two types of people build solar systems. One guesses. The other specifies. The Blueprint is the methodology.”
Pick Your Path
Start free with the Load Calculator. When you’re ready to go further, choose the documentation level that fits your build.
The full engineering spec plus the commissioning toolkit. You run the numbers, you size the system, you build it yourself — with field-grade documentation at every step.
Blueprint, Toolkit, Masterclass Video Series, and the Solar Sizing Wizard. The wizard outputs a complete custom parts list for your system.
Start with the Free Load Calculator
Know exactly how much power you need before you buy a single panel. Takes 5 minutes. No card, no account.
⚡ Get the Load Calculator — Free