10 Red Flags in Suspiciously Cheap Solar Quotes 2026

A cheap solar quote feels like a win at first sight. The number is lower than every other vendor on the page, the salesperson is keen, and the timeline looks tight. By the time the panels are on the roof, the savings have evaporated — non-ALMM modules fail the Suryaghar inspection, the inverter has no Bureau of Indian Standards (BIS) mark, the warranty letter has no paper backing, and the line item for cabling turns out to cover 4 sq mm wire where the design needed 6 sq mm. Across the quotes our Jaipur and Sikar teams audit every month, roughly 40% carry at least one red flag that would either void the central subsidy, fail a DISCOM inspection, or collapse the warranty chain inside three years.

This guide walks through the ten specific red flags that signal a suspiciously cheap solar quote in 2026 — how to spot them on the PDF before you sign, why each one matters financially, and what the actual cost is when the cheap quote fails. It builds on the broader red flags in a solar quote checklist and zooms in on the price-anchored traps that show up in lowball quotes.

Direct answer. A suspiciously cheap solar quote in India 2026 is one priced 15–25% below the MNRE benchmark and missing at least one of: ALMM-listed panel model, BIS-certified inverter brand, GST invoice, named warranty terms, Domestic Content Requirement (DCR) compliance, line-item Balance of System (BoS) costing, galvanised structure spec, milestone payments, third-party insurance, or 25-year Annual Maintenance Contract (AMC). The savings of ₹30,000–₹70,000 routinely turn into ₹85,000–₹2 lakh in lost subsidy, premature replacement, and rework — wiping out the cheap quote advantage and pushing payback past 7 years.

If you’ve received a quote that beats every other vendor by 20% and you can’t quite point at what’s missing, the gaps below are almost certainly where the cost has been hidden.

Why Cheap Solar Quotes Are a Trap

Rooftop solar pricing in India 2026 follows a fairly predictable structure. The Ministry of New and Renewable Energy (MNRE) publishes benchmark costs every year, the PM Suryaghar portal lists vendor average prices, and reputable installers cluster within a 6–8% band around those benchmarks. When a quote sits 15–25% below that band, the savings are not coming from operational efficiency — they are coming from substitutions you cannot see on the PDF.

The four most common substitutions are: (1) a non-ALMM imported panel sold as “equivalent tier-1,” (2) an inverter from a brand that has not cleared BIS certification under IS 16221, (3) underspecified cabling and isolators that meet the kilowatt rating on paper but fail under summer load, and (4) a non-galvanised mounting structure that rusts inside three monsoons. Each substitution shaves ₹4–8 per watt off the headline price. Stacked together, they explain almost the entire gap between a cheap quote and a benchmark quote.

The trap is that these substitutions don’t show up in year one. Generation looks normal, the inverter screen shows green, and the homeowner congratulates themselves on the savings. The failures concentrate between year 2 and year 7 — exactly the window when most homeowners assume the system is “settled” and stop scrutinising it. By then, the cheap installer has often shut down, rebranded, or stopped picking up the phone. A typical loss profile from our rescue desk: ₹78,000 forfeited Suryaghar subsidy because the panel was off-list, ₹35,000–₹80,000 to replace a failed non-BIS inverter, ₹15,000–₹40,000 to redo cabling and isolators to meet load, and ₹20,000–₹50,000 to swap a corroded structure. That is the ₹85K–₹2L loss we quote at the top — and it is not a worst case, it is the median rescue ticket.

For a fuller picture of how to read a quote line by line, our how to read a solar quote guide breaks down every section of a legitimate quotation. The current piece is narrower: it focuses on the price-anchored signals that scream “this is too cheap, here is what they cut.”

The 10 Red Flags in Suspiciously Cheap Solar Quotes

Use the framework below — The 10 Red Flags in Suspiciously Cheap Solar Quotes — as a structured pass over any PDF before you put down an advance. Each flag corresponds to one specific line item or omission. If three or more apply, the quote should be sent back for revision or rejected outright. The reference quote here is for a 5 kW residential rooftop system in north India; the same flags apply to commercial projects, but the ₹/W bands shift.

Red Flag 1: Non-ALMM Panel Model

The Approved List of Models and Manufacturers (ALMM) is MNRE’s mandatory register for any solar panel that wants Suryaghar subsidy or DISCOM net-metering approval. A cheap quote will either list the panel as “tier-1 540W mono PERC” without a model number, or list a model that is not on the current ALMM List-I. Verify the exact model at the BIS / ALMM portal and the MNRE ALMM page. If the model is missing, the panel is almost certainly a low-cost imported module — the installation will fail the Suryaghar physical inspection, and your ₹78,000 subsidy is forfeited. There is no recovery; you cannot retroactively swap panels and re-claim. Demand the exact ALMM model number on the quote.

Red Flag 2: No BIS Inverter Brand

Solar inverters sold in India must hold BIS certification under IS 16221 Part 1 and Part 2. A cheap quote that says “3 kW solar inverter” or “branded inverter” without naming the manufacturer (Sungrow, Growatt, Solis, Havells, Delta, ABB, Hitachi-Hirel) is almost always disguising a no-name unit. Two consequences follow. First, the inverter warranty is verbal — there is no manufacturer to enforce against. Second, the unit’s Mean Time Between Failures (MTBF) is typically 3–7 years, half the lifespan of a BIS-certified unit. Replacement at year 5 costs ₹35,000–₹80,000 depending on capacity. Always confirm the exact brand, model, BIS licence number, and warranty term in writing.

Red Flag 3: No GST Invoice

A vendor offering a discount in exchange for “cash, no bill” is asking you to forfeit the entire legal and warranty chain. Without a GST invoice you cannot: (1) claim Accelerated Depreciation (AD) if you’re a commercial buyer, (2) enforce manufacturer warranties — every panel and inverter warranty card requires the original tax invoice as proof of purchase, (3) claim PM Suryaghar subsidy — the portal disburses against invoiced amounts, and (4) prove ownership if there’s an insurance claim later. The GST saving on a 5 kW system is roughly ₹15,000–₹20,000, but the lost subsidy alone is ₹78,000. The math fails immediately. Verify your installer’s GSTIN at gst.gov.in before signing.

Red Flag 4: Missing Warranty Terms

A legitimate quote breaks warranty into three separate, named lines: panel product warranty (typically 12 years), panel linear power warranty (25 years to 84.8% nameplate), inverter warranty (5 years standard, extendable to 10), and workmanship warranty from the installer (5 years). A cheap quote collapses all of this into “25 years warranty” or “as per manufacturer.” Both are unenforceable. Without a manufacturer warranty card delivered at commissioning with serial numbers logged against the system, the warranty is effectively a verbal promise from a company that may not exist in year 10. Insist on warranty cards in hand on commissioning day.

Red Flag 5: No DCR Mention

Domestic Content Requirement (DCR) means the panel was manufactured in India using Indian-made cells, not just assembled here from imported cells. PM Suryaghar subsidy under the residential component is restricted to DCR-compliant modules. A cheap quote that lists a sub-₹20/W panel almost certainly uses imported cells from a Southeast Asian factory — cheaper to source, but the system will not clear the Suryaghar DCR check. The quote should explicitly state “DCR-compliant — ALMM List-I” with the model number. If the word DCR does not appear anywhere in the document, the panel is likely non-compliant.

Red Flag 6: Lowball Balance of System

Balance of System (BoS) means everything that is not the panel or the inverter — DC cables, AC cables, conduits, miniature circuit breakers (MCBs), AC and DC isolators, surge protection devices, earthing kit, junction boxes, and monitoring hardware. BoS should make up roughly ₹6–9 per watt of a residential quote. Cheap quotes routinely show BoS at ₹2–4 per watt, which is physically impossible to deliver at code-compliant specifications. Underspecified BoS means undersized cables that overheat under summer noon load, MCBs that nuisance-trip, and earthing that fails the first lightning event. Re-doing BoS post-installation costs ₹15,000–₹40,000 and requires partially dismantling the array.

Red Flag 7: Vague Structure Specification

The mounting structure spec line should read something like “hot-dip galvanised steel (galvanisation 80–120 microns) as per IS 4759, designed for 150 km/h wind load.” A cheap quote says “MS structure” or “mounting structure included.” MS — mild steel — without galvanisation rusts visibly within three monsoons in any humid or coastal zone, and within five years in dry zones because of dew cycles. Aluminium structures are corrosion-proof but lighter and need careful design for wind load. The three lifespans diverge sharply: galvanised steel lasts 25+ years, anodised aluminium lasts 25+ years, plain MS lasts 3–7 years. Replacing a rusted structure is not a panel-off-panel-on job; it is a full re-installation costing ₹20,000–₹50,000.

Red Flag 8: All-Upfront Payment Terms

Legitimate solar installers structure payment around milestones: 30–40% advance on order confirmation, 40–50% on material delivery to site, 10–20% on commissioning and net meter installation, and the final 5–10% after the first generation report. A cheap quote that demands 100% upfront — or 80%+ before material moves — is structuring the deal so the vendor has no incentive to come back. If the inverter fails on Day 30, or the Suryaghar inspection rejects a panel, the vendor has already cashed out. Milestone payments align the installer’s incentive with your project finishing successfully. Read our solar quote negotiation guide for the language we use to restructure all-upfront demands.

Red Flag 9: No Third-Party Insurance

A rooftop installation involves workers on a height for 2–4 days, ₹2–10 lakh of equipment moving through your property, and DC voltages that can ignite poorly terminated cables. Reputable installers carry: (1) workmen’s compensation insurance for the install crew, (2) public liability insurance covering damage to your property during installation, and (3) transit insurance on the equipment until commissioning. A cheap quote excludes all three. If a worker falls or your roof tiles crack during structure drilling, the liability lands on you. The insurance cost is roughly ₹0.5–1 per watt — it is not a meaningful chunk of the total but it is what separates a professional install from a casual one.

Red Flag 10: No AMC for 25 Years

A grid-tied solar system needs annual cleaning, inverter firmware updates, earthing checks, torque re-checks on structure bolts, and connection inspections. An Annual Maintenance Contract (AMC) at market rate is ₹500–₹1,000 per kW per year. A cheap quote either offers no AMC at all or quotes ₹200/kW — which is below the cost of a single site visit and therefore cannot be honoured. The system can run without AMC for a few years, but degradation accelerates: dust losses compound, micro-cracks go undetected, and inverter heat-sink fouling shortens its life. Over 25 years, a skipped or under-funded AMC costs ₹50,000–₹1.5 lakh in lost generation and premature replacements.

#	Red flag	Where it shows	Real cost when ignored
1	Non-ALMM panel	”Tier-1 540W” without model number	₹78,000 subsidy lost
2	No BIS inverter	”3 kW inverter” without brand	₹35,000–₹80,000 replacement at year 5
3	No GST invoice	”Cash discount available”	Warranty void, subsidy void
4	Missing warranty terms	”25 years warranty” with no card	Year-10 panel failure = total loss
5	No DCR mention	DCR word absent from quote	Suryaghar rejection
6	Lowball BoS	BoS at ₹2–4/W vs ₹6–9/W norm	Re-cabling ₹15K–₹40K
7	Vague structure	”MS structure included”	Rusts in 3–7 yrs; ₹20K–₹50K
8	All-upfront payment	100% before material	Vendor disappears post-payment
9	No insurance	No mention of worker/property cover	Personal liability if accident
10	No 25-year AMC	”1-year warranty” only	₹50K–₹1.5L lost generation

Real-World Failure Examples — Where Cheap Quotes Broke Down

The flags above are not theoretical. Each is anchored in a specific rescue ticket our team has worked through in 2024–25. The table below de-identifies four cases — two residential and two commercial — and shows how each cheap quote unwound between commissioning and year 5. These are typical of the ~12% of new HGE customers who reach us after a previous installation has failed. The pattern is depressingly consistent: a 20% saving at the order stage turns into a 40–80% loss against the original quote value.

Case	Original quote	Cheap saving	Failure point	Recovery cost
Residential 3 kW, Jaipur	₹1.45L vs ₹1.75L benchmark	₹30,000	Non-ALMM panel — Suryaghar rejected at field inspection, year 0	₹78,000 subsidy lost + ₹45,000 panel swap
Residential 5 kW, Sikar	₹2.10L vs ₹2.75L benchmark	₹65,000	No-brand inverter failed at month 18; vendor traceable but liquidated	₹62,000 inverter replacement (Sungrow 5K)
Commercial 50 kW, Ajmer	₹17.5L vs ₹22L benchmark	₹4.5L	MS structure rusted at coastal exposure by year 3; modules tilting	₹3.2L re-structuring + 4 wk downtime
Commercial 100 kW, Jodhpur	₹32L vs ₹40L benchmark	₹8L	Under-sized DC cables overheating; AC isolator burnt at month 9	₹1.8L cabling rework + ₹4.1L generation loss

In each case the homeowner or facilities manager believed they had negotiated well. In each case the saving was eaten by failure costs that would have been built into a benchmark quote from day one. The pattern is consistent enough that our team now uses these four scenarios as the standard reference frame when an enquiry comes in with a competitor quote attached.

For a deeper read on how to vet an installer’s financial and operational stability before signing — so you don’t end up in case (2) above with a liquidated vendor — see our how to evaluate solar installer credibility guide.

What Cheap Quotes Typically Skip — BoS, Structure, Civil

The single largest source of opacity in a cheap quote is the bundle of items that do not have a brand name attached — the Balance of System, the structure, the civil work, and the documentation overhead. These categories are difficult for a homeowner to price-check because there is no Amazon listing for “code-compliant rooftop earthing kit.” Cheap installers exploit this opacity by either omitting these line items or hiding them inside a single “installation charges” line. The table below shows what should be itemised and what cheap quotes typically skip.

Category	Should be itemised	Cheap quote treatment	Why it matters
DC cables	4 / 6 sq mm solar-grade, IS 694 / IEC 60227, UV-rated	”DC cables included”	Under-sized = overheating
AC cables	Cu armoured, sized to inverter output	”AC cables included”	Voltage drop > 3% kills generation
MCBs / fuses	Brand, rating in amps, breaking capacity	Absent	Nuisance trips, fire risk
AC + DC isolators	Brand, rating, IP rating	”Isolators included”	Required for safe maintenance
Surge protection	Type II SPD on DC + AC side	Absent	Lightning event = inverter dead
Earthing	3 separate earth pits per IS 3043	”Earthing included”	DISCOM inspection failure
Monitoring	Wi-Fi dongle, mobile app, brand	Absent	No way to detect under-generation
Structure	Galvanisation microns, IS 4759, wind load	”MS structure”	Rusts in 3–7 years
Civil work	Roof waterproofing, concrete pads, cable trays	Absent	Roof leaks at monsoon
Documentation	Single-line diagram, serial number log, warranty cards	Absent	Cannot enforce warranty

A complete quote runs 4–6 pages for a 5 kW residential system. A cheap quote often runs one page. The page count itself is a signal — there is not enough room on one page to specify all the items that should be there.

Get a benchmark-checked quote. Our team produces line-item quotes that name every panel, inverter, cable size, MCB brand, structure spec, and warranty term in writing — and we’ll compare your existing quote against the benchmark for free. Get your free quote →

Pricing Benchmarks — What Real Quotes Cost Per Watt

The cleanest single test for a suspiciously cheap quote is the per-watt rate. Real quotes in 2026 cluster tightly around the bands below. These figures are net of subsidy — they are the all-in installed cost before any Suryaghar disbursement. The right-hand column shows the cheap-quote band that should immediately raise suspicion. If your quote sits in the right column, it is almost guaranteed to have at least two of the flags above hidden inside it.

System type	Benchmark band (₹/W)	Cheap-quote band (₹/W)	What’s typically being cut
Residential 1–3 kW	₹55–62	₹40–48	Panel, inverter, structure
Residential 3–5 kW	₹50–58	₹38–45	Panel, BoS, AMC
Residential 5–10 kW	₹48–55	₹36–43	Panel, structure, insurance
Commercial 10–50 kW	₹42–50	₹32–38	Inverter, BoS, civil
Commercial 50–100 kW	₹38–45	₹28–35	Structure, cabling, documentation
Commercial 100+ kW	₹35–42	₹26–32	Everything thin-margined

For Rajasthan-specific cost references see our Jaipur solar cost guide and the PM Suryaghar JVVNL process for how DISCOM-side fees enter the total. For an interactive estimate against your actual bill, use the Heaven Green solar calculator.

A useful sanity check: if the per-watt figure in your quote sits more than 15% below the benchmark band, every line item should be re-examined. A 5–10% gap is plausible from genuine vendor efficiency or volume buying; a 20% gap is almost always substitution. The why PM Suryaghar rank matters guide explains how the national portal’s vendor ranking captures a slice of this — installers ranked in the top tier consistently sit in the benchmark band, not below it.

The benchmark bands above also shift with panel wattage class. A 540W panel system will land at the lower end of the residential band; a 580W TOPCon panel pushes towards the upper end because the module is itself more expensive per watt at the factory gate. Mounting structure choice matters too — aluminium adds ₹2–3/W over hot-dip galvanised steel and is worth it on coastal sites. When you read your quote, isolate three variables before comparing: (1) panel wattage class, (2) inverter brand tier, and (3) structure material. Two quotes can both fall inside the benchmark band yet differ by ₹4/W simply because of these three choices. The cheap-quote band on the right side of the table is what should worry you — those numbers are below the manufacturing cost of compliant components, which means the components shipped will not be compliant.

Common Mistakes When Comparing Cheap Quotes

When homeowners compare three quotes side by side, the same evaluation errors show up over and over. Each of these errors makes the cheap quote look better than it is — and each is fixable with a five-minute check.

1. 1
   Comparing total prices, not per-watt rates. A 4.95 kW quote at ₹2.30 lakh looks cheaper than a 5.20 kW quote at ₹2.55 lakh — but per-watt the second is better value. Always divide by exact wattage installed.
2. 2
   Ignoring panel wattage class. A 540W panel and a 580W panel are not interchangeable line items — they affect roof area, cable sizing, and structure. Compare like-for-like wattage class first.
3. 3
   Trusting "branded inverter" without model. "Branded" is a sales word. Demand brand + model + BIS licence number on the quote. If not provided in writing, treat it as no-brand.
4. 4
   Reading warranty as a single number. "25-year warranty" is meaningless without the four-line breakdown (product / linear / inverter / workmanship). One number means none of them are real.
5. 5
   Not asking about the Suryaghar empanelment. The vendor must hold a live empanelment with the central portal — verify via the [Suryaghar vendor list check](/blog/suryaghar-vendor-list-verify) guide before signing.
6. 6
   Skipping the site survey. A quote produced without a physical roof survey will miss shading, structural load, and cable run length. Cheap quotes are often pre-site-survey — and the costs surface later.
7. 7
   Accepting verbal AMC promises. "We'll come whenever you call" is not an AMC. Demand written terms — number of visits per year, response time, what's covered, and the per-kW rate.

Cheap Quote vs Heaven Green Quote

The contrast between a typical cheap quote and a benchmark Heaven Green quote shows up cleanest in side-by-side form. The cheap quote wins on day-one price; the benchmark quote wins on every other dimension a 25-year asset is judged on.

Verdict. A benchmark quote is roughly ₹50,000–₹70,000 more expensive than a cheap quote on a 5 kW system. The cheap-quote saving is real on day one. The cheap-quote loss — averaged across the failure scenarios we see — runs ₹85,000 to ₹2 lakh between year 0 and year 7. Net of that, the benchmark quote is the cheaper system over any sensible time horizon. Pay 15% more on day one; save 80%+ on lifetime failure cost.

For the underlying line-by-line comparison framework, our how to read a solar quote guide is the most thorough internal reference.

How Heaven Green Energy Quotes Are Built

Every Heaven Green Energy quote is built from the same template — and that template is structured around eliminating each of the ten red flags above. We’re India’s #1 ranked PM Suryaghar installer on the national portal and our quote structure reflects what the portal actually checks, not what looks pretty on a PDF.

• Panel named by exact ALMM model number; DCR compliance stated in writing.
• Inverter named by brand, model, and BIS licence number; warranty line separate.
• BoS itemised: cable sizes by sq mm and standard, MCB by brand and rating, SPD by type, earthing kit count.
• Structure specified as hot-dip galvanised steel with galvanisation micron count or anodised aluminium, per IS 4759, with wind load rating.
• GST invoice with verifiable GSTIN, HSN code per component, and AD-ready breakdown for commercial buyers.
• Warranty broken into four named lines: panel product, panel linear, inverter, workmanship.
• Payment terms structured around milestones, never 100% upfront.
• Insurance included — public liability + workmen’s compensation + transit cover.
• AMC quoted at market rate (₹500–1,000/kW/year), 25-year option from Day 1.
• Documentation includes single-line diagram, serial number log, warranty cards delivered on commissioning, and one-year handholding through Suryaghar disbursement.

Explore the services that match your project:

• Residential Solar — 1–10 kW rooftop systems with PM Suryaghar subsidy, full ALMM + BIS + DCR compliance, milestone payments, 25-year AMC option.
• Solar Calculator — check the right system size and per-watt benchmark for your bill in 60 seconds.
• Contact our team — send us your existing quote and we’ll mark up every red flag against the benchmark within 48 hours.

For more on how to vet an installer end-to-end before signing, see how to evaluate solar installer credibility and the older red flags in a solar quote sibling guide.

Frequently Asked Questions

What is a “suspiciously cheap” solar quote in India 2026?

A suspiciously cheap solar quote is one priced 15–25% below the MNRE benchmark band for your system size. For 5 kW residential, that means under ₹45/W when the benchmark is ₹50–58/W. The gap is almost never genuine vendor efficiency — it is component substitution. Common substitutions are non-ALMM imported panels, no-brand inverters without BIS certification, underspecified Balance of System components, and non-galvanised structures that rust within 3–7 years.

How much can I lose if my cheap solar quote fails?

The median loss across failed cheap quotes we have rescued runs ₹85,000 to ₹2 lakh on a 5 kW residential system. The components typically are: ₹78,000 forfeited PM Suryaghar subsidy when the panel turns out non-ALMM, ₹35,000–₹80,000 to replace a failed no-brand inverter at year 3–5, ₹15,000–₹40,000 to re-do underspecified cabling, and ₹20,000–₹50,000 to replace a corroded structure. These losses dwarf the original ₹30,000–₹70,000 saving from picking the cheap quote.

Is ALMM mandatory for all rooftop solar installations in India?

ALMM List-I compliance is mandatory for any solar installation claiming PM Suryaghar central subsidy and for most DISCOM net-metering approvals across India in 2026. Off-grid and self-funded private installations without subsidy can technically use non-ALMM panels, but the panel still needs BIS certification under IS 14286 to meet electrical safety norms. For any homeowner planning to claim Suryaghar, ALMM is non-negotiable — verify the model at the MNRE ALMM portal before signing.

What is the right Balance of System (BoS) cost per watt in 2026?

Balance of System should sit at ₹6–9 per watt for a residential rooftop system in 2026. That covers DC and AC cables sized to load, MCBs and isolators from a named brand, surge protection on both sides, earthing per IS 3043, junction boxes, monitoring hardware, and conduit. A quote that shows BoS at ₹2–4 per watt is physically impossible to deliver at code-compliant specifications — the items have been substituted with under-sized parts that will fail under summer load.

Can I negotiate a cheap quote up to benchmark spec instead of switching vendors?

Sometimes — but only if the vendor is willing to re-quote with named ALMM panel models, named BIS inverter brands, line-item BoS, and milestone payments. If the vendor refuses any of those changes, the cheap price was built around the substitutions, not around true efficiency, and a re-quote is unlikely to be honoured at installation. Our solar quote negotiation guide walks through the specific language for asking for these upgrades without losing the deal.

How do I verify a GST invoice from a solar installer?

Take the GSTIN printed on the quote or invoice and enter it at the official GST portal under “Search Taxpayer.” The portal returns the legal name, address, registration status (active / cancelled / suspended), and date of registration. An active GSTIN with a registration date older than 3 years is a basic positive signal. A “cancelled” or “suspended” status means the installer cannot legally issue you a tax invoice and the warranty chain is broken.

Does a 25-year AMC really matter, or can I do maintenance myself?

A grid-tied solar system needs annual cleaning (dust losses reach 8–15% without it), inverter firmware updates, torque re-checks on structure bolts, earthing continuity tests, and connection inspections. Some of this can be DIY, but the inverter and earthing checks need instruments and certification. Over 25 years, skipped or under-funded AMC costs ₹50,000–₹1.5 lakh in lost generation and premature replacements — well above the ₹500–1,000/kW/year AMC rate. The right call is a paid AMC from a vendor who will still exist in year 15.

How does Heaven Green Energy audit a competitor’s cheap quote?

Send us the PDF and we run a 10-point check against the framework in this guide: ALMM model verification, BIS inverter brand check, GST invoice presence, warranty term breakdown, DCR statement, BoS per-watt rate, structure spec, payment terms, insurance coverage, and AMC terms. We then map your quote against the ₹/W benchmark band for your system size and produce a marked-up annotated quote within 48 hours, free, with no obligation. Get in touch — most of our customers come in through this audit route, including the ~12% we rescue from in-flight failed installations.