Two volumes for the Indian installer — 46 chapters, 189 pages. Volume I is the engineering: every calculation worked end to end with real component numbers. Volume II is the business: pricing, subsidy math, cash flow and scale.
Every number worked line by line — not quoted from a datasheet.
None of these are theory. Each one has a chapter written around it.
Sized on the datasheet Voc — and the inverter trips on the first cold January dawn. Vol I · Ch. 10 — String sizing, the master calculation
Rows spaced by eye, and by December one array is shading the next for three hours a day. Vol I · Ch. 09 — Shadow analysis & row spacing
Modules ordered against last year's rules — and the List-I / List-II mandate blocks the file. Vol I · Ch. 03 — Module technology & compliance, 2026
Protection and lightning done "the usual way", until the first monsoon proves otherwise. Vol I · Ch. 13 — Protection, earthing & lightning
The quote wins the deal and loses the margin, because the cost stack was never built properly. Vol II · Ch. 10–12 — Full cost stack, where margin lives, quotation strategy
Five projects running, all of them profitable on paper, and no money in the account. Vol II · Ch. 22 — Cash flow & working capital
Most solar material in India stops at definitions — it tells you Voc is open-circuit voltage and moves on. This set starts exactly where that ends. It tells you that Voc rises as the morning gets colder, and then shows you the arithmetic that stops it from tripping your inverter.
Part C carries the heaviest arithmetic in the book — and Chapter 10 is the one every designer gets wrong at least once. Here is the shape of it.
The first crore comes from hustle. The second comes from systems. Volume II is written for the founder-installer who can already design a system and now wants to run a company that installs them.
Volume I answers how do I build it. Volume II answers where the customer comes from, what price wins the deal, and how much cash you need to run five projects at once.
Design, installation, commissioning & O&M — a field handbook for Indian conditions.
Selling, building and scaling solar in India — for the founder-installer, not the engineer.
Nothing hidden. Both volumes, part by part.
Learn the frameworks; verify the numbers against your own state and month before you commit.
Worked examples, geometry diagrams, rate cards and checklists — exactly as printed. Touch a page to pause.
Design engineers, commissioning engineers, O&M teams and business owners.
The design calculations are what made this set worth it for me. Site survey, shadow analysis, string sizing, DC/AC ratio, cable sizing and voltage drop are explained as engineering decisions, not as theory. The PVsyst, yield estimation and BOQ sections gave my whole design workflow a proper structure.
Small mistakes during installation get very expensive later. This book covers mounting, cable routing, protection, earthing, lightning protection and commissioning in the right sequence. The pass/fail criteria and the commissioning checklist are what I actually keep open on site.
I used to treat design and maintenance as two separate things. This set connects them. You get monitoring, preventive maintenance and fault diagnosis alongside site survey and commissioning documentation. The troubleshooting matrix and the field notes make it a working reference rather than something you read once.
The Business Playbook was the more relevant half for me. Choosing a market segment, unit economics, costing, quotation, subsidy and customer ROI, right through to lead generation and B2B sales — all in one place. Procurement, project management, cash flow and AMC made me start looking at the installation work as a company, not a series of jobs.
Used together, the two books close the gap between the technical and the commercial side. One gives you site survey, system sizing, protection, commissioning and O&M; the other gives you pricing, sales, working capital, procurement and scale. For an installer that combination matters — building the system is only half of it, operating the business sustainably is the other half.
The design calculations are what made this set worth it for me. Site survey, shadow analysis, string sizing, DC/AC ratio, cable sizing and voltage drop are explained as engineering decisions, not as theory. The PVsyst, yield estimation and BOQ sections gave my whole design workflow a proper structure.
Small mistakes during installation get very expensive later. This book covers mounting, cable routing, protection, earthing, lightning protection and commissioning in the right sequence. The pass/fail criteria and the commissioning checklist are what I actually keep open on site.
I used to treat design and maintenance as two separate things. This set connects them. You get monitoring, preventive maintenance and fault diagnosis alongside site survey and commissioning documentation. The troubleshooting matrix and the field notes make it a working reference rather than something you read once.
The Business Playbook was the more relevant half for me. Choosing a market segment, unit economics, costing, quotation, subsidy and customer ROI, right through to lead generation and B2B sales — all in one place. Procurement, project management, cash flow and AMC made me start looking at the installation work as a company, not a series of jobs.
Used together, the two books close the gap between the technical and the commercial side. One gives you site survey, system sizing, protection, commissioning and O&M; the other gives you pricing, sales, working capital, procurement and scale. For an installer that combination matters — building the system is only half of it, operating the business sustainably is the other half.
Written plainly, so the money goes to the right place.
Same content in both — 46 chapters across two volumes. The only question is whether you want it on the desk or on the phone.
Soft copy instantly, books delivered to your address.
English, written in working language rather than academic prose. Volume I also carries an English + Hindi glossary in Appendix G for the technical terms.
This is not an introduction to solar energy. It assumes you already know what a photovoltaic cell is and can read a wiring diagram. Level is intermediate to advanced. If you have that base, Volume I builds the designer's judgement on top of it.
They reflect the position at the start of 2026, including the ALMM List-I and List-II dual mandate that came into force on 1 June 2026. Tariffs, subsidy slabs, net-metering caps and empanelment rules differ by state and change without notice — every figure of that kind is marked with the date it was current. Verify against your own DISCOM before you commit it to a customer quotation.
Volume I answers how to build the system. Volume II answers where the customer comes from, what price wins the deal and how much cash you need to run five projects at once. If you only design, Volume I stands alone. If you run or want to run the business, the pair is the point.
Yes. Order the hard copy and you get lifetime online access immediately — you don't wait for the books to arrive. No extra charge.
Use the frameworks; verify the numbers. Rates, subsidy slabs, tax provisions and scheme parameters are subject to state variation and periodic revision. Nothing in the books is legal, financial or tax advice — a chartered accountant and a licensed electrical consultant are still cheaper than the mistake.