For Solar Photovoltaic Panel & inverter installers
Wire it right the first time. Get paid. Get referred.
The field manual that shows you how to size, quote, troubleshoot and actually earn from inverter and solar systems. Built for Nigeria, on principles that work anywhere.
Get the Field Manual — ₦14,900 Instant PDF download. Yours to keep.
The problem
The mistakes don't show up on the day. They show up months later.
The batteries look fine for a year. Then they die at eighteen months.
The array looks perfect on the roof. Then it delivers a third of its rated output.
And somewhere out there, an inverter was wired backwards and blew on day three.
Every one of those jobs becomes a client who tells everyone they know that solar doesn't work.
- Guessed sizing. The system is undersized and shuts down every night.
- Killed batteries. A battery bank worth hundreds of thousands of naira, dead before its time.
- Underpriced jobs. You did the work and kept almost none of the profit.
- Unsafe wiring. DC that does not stop arcing, done without the method.
None of this is because you are not skilled. It is because nobody ever handed you the method. This manual is the method.
Why this matters more in 2026
Solar is no longer about being green. It is about being solvent.
Band A grid power now costs around ₦209.50 per kWh, more than double its 2020 rate. Petrol sits near ₦1,300 per litre. The generator has become a luxury most homes and businesses can no longer afford to run.
A correctly designed hybrid system now pays for itself, in pure savings against grid and fuel, in two to four years for a home and three to five for a small business.
The installer who sizes, wires and prices it correctly is the one who gets paid, and gets referred.
What you get
Ten chapters. One clear method. Real tools you can use on the next job.
Open Chapter 4 and there is a load worksheet that tells you the exact system a client needs, before you quote. Open Chapter 5 and you learn why most installers still size batteries the wrong way in the lithium era. This is built to be used on site, not read once and shelved.
See any system on sight, then spec it
The four blocks every install is built from, a proper site survey, and choosing the right inverter while knowing why the others are wrong.
Size it so it never fails at night
Audit the real load, size batteries for the lithium era, and design arrays and charge controllers that give full output.
Wire safely and to code
The safety practices you internalise before you touch an installation, protecting your client and your name.
Price, close and build the business
Show the payback, close on value not price, diagnose faults fast, and run a real solar business.
And the tools that make it a working manual:
- Five detailed case studies of real Nigerian installations.
- Reproducible forms and checklists, including the load worksheet that changes how you quote.
- Reference tables you will keep coming back to on site.
- Standard contract and quote templates you can use from day one.
Who wrote it
What readers say
Don't take my word for it.
"I was nervous it would be too technical, but it really is 'made easy.' I finally understood why my old setup kept killing batteries, used the load worksheet to plan my system, and I haven't run my gen in months."
"So enriching, with practical solutions to real site problems. I recommend it to every solar PV installation practitioner."
"Such a lovely and in-depth book. I will recommend it over and over."
The price
One job pays it back many times over.
You might wonder why a manual this detailed is ₦14,900 and not ₦50,000. The honest reason: I would rather it reached every installer who needs it than sat behind a premium price. The first edition sold for ₦5,000 in 2020. This one is bigger, rebuilt for 2026, and priced to stay within reach.
- All 10 chapters, fully revised for 2026
- Five detailed case studies
- Forms, checklists and reference tables
- Contract and quote templates
- The 14-day "Better Job" guarantee
Before you decide
The honest answers to what you're probably thinking.
I'm new to this. Will it be over my head? +
I've bought solar material before and it didn't help. +
Are the prices and methods current? +
How do I receive it, and will it open? +
Is it just for installers, or homeowners too? +
The "Better Job" Guarantee
Read it, use it on your next job. If it doesn't help you size, wire or price more profitably, email me within 14 days at abiodunworkonline@gmail.com for a full refund. No forms, no fuss.
The next job is already coming.
This week a client will call you to size a system, quote a job, or fix one that failed. You can meet that call with guesswork, or with the same method that has trained more than 1,000 installers. Read it tonight, and work differently tomorrow.
Get the Field Manual — ₦14,900 Instant PDF download. Backed by the 14-day guarantee.Important disclaimers
Results are not guaranteed. The figures, payback periods and outcomes on this page are illustrative and are not a promise or guarantee of income or results. Solar installation is a skilled trade, and what you earn depends on your effort, experience, pricing, local market conditions and the quality of your work. This manual is educational material, not financial or investment advice.
Safety. Solar and inverter work involves voltages and stored energy that can cause injury or death if handled incorrectly. Always follow the manufacturer's instructions and all applicable local codes and safety standards. The author accepts no liability for damage or injury arising from the use or misapplication of the information in this manual.
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Testimonials. The reviews shown are from real verified buyers and reflect their own experience. Individual experiences vary, and no specific outcome is promised.