Who pays when the array blows off the roof?
An undeclared rooftop plant can complicate a building claim, and most warranties exclude storm and fire. What to tell the customer to insure, and what you carry.
Topic
Proposals
Building client-ready solar proposals that survive comparison, including costing, subsidy treatment, payback and what to leave behind after a site visit.
The handover that stops the callbacks
Most rooftop systems are handed over with a smile and a WhatsApp message. What a real handover pack contains, and why it pays for itself within two years.
Claiming a module or inverter warranty without losing the argument
Warranties are won or lost at installation, not at failure. The records that make a claim succeed, and the two exclusions that customers never expect to find.
An annual maintenance contract a customer will actually buy
Most EPCs give maintenance away for two years and hope nobody calls. What belongs in a priced AMC, what to exclude, and the moment to sell it so it closes.
TOPCon, bifacial, and what actually belongs on a rooftop
TOPCon has taken over Indian rooftop supply and bifacial is sold with it. One of those choices is usually right and the other usually is not, on a house roof.
Why the system generates less than you promised
Nine reasons an estimate and a meter disagree, how to tell which one is at fault, and what to put in writing so the conversation never becomes an argument.
Commission in September or your customer loses half the tax break
Accelerated depreciation gives a business 40 percent in year one, but only if the plant runs 180 days in that financial year. Miss it and the rate halves.
Bill of materials mistakes that eat a signed job's margin
The margin on a rooftop job is usually lost after signature, in items nobody priced. Fourteen line items that go missing, and the two clauses that protect you.
Rooftop first, then open access, in that order
C and I buyers are moving on both at once and getting the sequence wrong. Why the roof comes first, what open access is actually for, and how to pitch both.
Societies get Rs 18,000 per kW. Most quotes get it wrong
Group housing societies have their own subsidy rate, their own cap and a DCR condition. The four things that sink a society proposal, and how to price around them.
What actually goes in a solar proposal
Most rooftop proposals are a price and a picture. The ten things a proposal has to carry to survive comparison, and the one page the customer actually reads.
ALMM List-II is live. Your price list is three months stale
The cell mandate took effect on 1 June 2026 and procurement costs moved with it. How to requote an open pipeline without eating the difference yourself.
GST on solar is 5 percent. Most quotations still say 12
The cut moved an EPC contract from 13.8 percent to 8.9 percent. Where that saving actually lands, and why it is a different story for a C and I buyer.
How to close a rooftop deal on the first site visit
The gap between the site visit and the proposal is where rooftop deals go cold. What to produce on the roof, and what to stop doing back at the office.