Quick Answer
Do not accept an Adani Solar installer claim from a logo, invoice heading, or old letter. Ask Adani Solar to confirm the seller's current legal entity, role, territory, product scope, and validity date. Then match the exact module SKU, invoice, labels, serials, datasheet, BIS and ALMM evidence, warranty route, project design, workmanship contract, and local service before releasing protected payment milestones.
An Adani Solar panel installer claim can describe several different relationships. The seller may buy modules from a distributor, operate as a dealer, hold a channel appointment, subcontract installation, or deliver a complete engineering, procurement, and construction contract. A logo does not show which role applies.
Direct answer: ask Adani Solar through its official contact route to confirm the counterparty’s exact legal name, current role, territory, product scope, and validity date. Save that evidence. Then match the contract, GSTIN, bank account, invoice, exact module model, labels, serials, datasheet, certificate scope, warranty route, installation duties, and local service before payment.
Authorization is only one gate
A valid module-supply relationship does not prove roof engineering, electrical design, installation quality, utility approval, workmanship warranty, or local response. Verify the product chain and the EPC delivery chain separately.
This guide applies to Indian residential, commercial, and institutional buyers. Project eligibility, net-metering procedure, DCR, ALMM, BIS, vendor status, and technical approval can depend on the project type, scheme, state, DISCOM, model, factory, and commissioning date. Confirm the current rules for the actual project rather than transferring evidence from another installation.
Separate the Manufacturer, Channel, and EPC Roles
Adani Solar is the module brand and manufacturer-side point of reference in this transaction. The buyer still needs to identify every entity between manufacturer and installed array.
| Role | Typical evidence | What it does not prove |
|---|---|---|
| Manufacturer legal entity | Current datasheet, invoice identity, module label, certificate, warranty document | That a local company can install or service the system |
| Distributor | Dated manufacturer confirmation, territory, product scope, supply invoice | EPC design authority or workmanship responsibility |
| Dealer or reseller | Supply-chain invoice, appointment evidence where applicable, quoted product scope | Direct manufacturer appointment for every product or location |
| Channel partner | Current letter or manufacturer confirmation stating entity, scope, territory, conditions, and validity | Structural, electrical, utility, or construction competence unless stated |
| Installer subcontractor | Work order, licences where applicable, staff and safety evidence, supervision plan | Ownership of the customer contract or manufacturer warranty |
| EPC contractor | Signed scope, drawings, procurement obligations, construction, testing, utility and handover duties | Manufacturer liability for installer workmanship |
| Service provider | Location, response target, labour and parts responsibility, escalation record | Authority to approve a manufacturer warranty claim |
One company may perform several roles. That is acceptable when each role is supported by evidence and the contract identifies one accountable entity. Risk rises when the salesperson uses one group name, the quote uses another legal name, the bank account belongs to a third entity, and the invoice is expected from a fourth.
The Adani Solar official contact page refers to authorized channel partners and distributors for module requirements. That wording supports a channel enquiry. It does not establish that any named local company is an authorized installer, a turnkey EPC, or a warranty service centre. Ask Adani Solar to confirm the exact role in writing.
Write the role chain before comparing price
Create a one-page counterparty map:
Manufacturer -> distributor -> dealer or EPC buyer -> installer -> system owner
For each arrow, record the legal entity, GSTIN, invoice, purchase order, product, quantity, delivery location, date, and warranty or service obligation. If modules move through stockists, ask for enough traceability to connect the delivered serials to the legitimate invoice chain without exposing irrelevant commercial data.
Do not force every legitimate transaction into a direct manufacturer-to-installer model. Distribution is normal. The buyer’s task is to make the chain traceable and the remedies clear.
Verify the Legal Entity Before Its Authorization
Authorization evidence is useless when it names a different entity. Start with the exact name on the proposed contract and tax invoice.
Use the official GST Search Taxpayer process to check GSTIN, legal name, trade name, constitution, registration status, and principal place of business. A trade name can differ from the legal name, but the quote should explain the connection.
For a company or LLP, compare the name, CIN or LLPIN, status, registered state, and incorporation information through current Ministry of Corporate Affairs records. The government Company Master Data catalog describes these fields. Use the live MCA service and current filings for transaction-level review.
Also verify:
- Contract signatory and authority to bind the entity
- Bank beneficiary name against the contracted entity
- Quotation and invoice address
- Branch or franchise relationship, if a local office uses the brand of another entity
- Electrical contractor or subcontractor identity where required
- Insurance evidence for the work and project scale
- Reference projects contracted and invoiced by the same entity
- Complaint, notice, insolvency, or litigation checks appropriate to the transaction value
GST registration proves a tax identity. Company registration proves legal existence. Neither proves Adani authorization, product authenticity, engineering quality, financial capacity, or service performance.
Ask Adani Solar a closed verification question
Avoid sending only a logo or trading name. Provide the exact legal name, address, GSTIN, claimed role, territory, product family, and letter reference. Ask Adani Solar to confirm:
- Whether the entity currently holds the claimed role
- Which products or module families the role covers
- Which geography or customer segment it covers
- The start, expiry, suspension, or renewal conditions
- Whether the appointment includes only supply or also installation and service
- Which invoice and warranty route applies
- Whether another distributor or entity is expected in the supply chain
Retain the dated response with the signed contract. A phone call can help, but written confirmation is easier to audit after staff or channel arrangements change.
Build an Authorization Evidence Pack
Treat authorization as a pass or fail gate before equipment preference or price scoring. The evidence pack should contain the manufacturer response, the counterparty’s claim, and a reconciliation note showing whether they match.
| Evidence item | Pass condition | Failure example |
|---|---|---|
| Legal entity | Same entity appears in manufacturer confirmation, contract, invoice, and bank details | Similar trading name or another group company |
| Role | Manufacturer confirms distributor, dealer, channel partner, service, or other exact role | Letter says dealer while salesperson claims turnkey installer |
| Territory | Project address is within the stated geography or has written exception | Appointment covers another state or branch |
| Product scope | Proposed module family and customer segment are included | Appointment covers a different product family |
| Validity | Evidence is current on order and delivery dates | Expired, undated, revoked, or renewal pending |
| Conditions | Volume, channel, payment, branding, and resale conditions are satisfied | Letter is conditional but quote presents it as unrestricted |
| EPC responsibility | Survey, design, installation, testing, utility, and service duties are separately contracted | Supply appointment is used as proof of installation authority |
Inspect the document itself. Check letterhead domain, signature, signatory function, reference number, issue date, validity, legal name, address, stamp where used, product wording, territory, customer segment, and conditions. Confirm it with Adani Solar rather than trusting a PDF forwarded by the bidder.
An authorization letter can be genuine and still irrelevant. Examples include:
- A distributor letter shown by an unrelated installer
- A module-supply appointment presented as a warranty-service appointment
- A role for another branch, state, customer segment, or module family
- A letter issued to a former company name without documented succession
- A valid relationship that expired before purchase or delivery
- A project-specific supply letter reused for other customers
The buyer should record the result as confirmed, confirmed with limits, not confirmed, or pending. Do not convert a pending check into a positive marketing statement.
Keep Manufacturer, Scheme, and DISCOM Status Separate
Three records may all be relevant, but they answer different questions:
- Adani channel confirmation asks whether the named entity has a current manufacturer-side role for the stated scope.
- PM Surya Ghar or DISCOM vendor status asks whether a vendor can participate in the applicable residential scheme and local process.
- Legal and technical capability asks whether the entity can contract, design, install, test, and support the actual plant.
For an eligible residential CFA project, verify the vendor through the current National Portal vendor process and the applicable DISCOM route. A portal record does not prove Adani authorization. An Adani distributor confirmation does not prove scheme vendor status.
Keep the consumer’s portal account, mobile number, email, OTPs, and bank information under consumer control. The installer may assist with submissions, but the contract should prohibit unauthorized credential control and define who checks every uploaded document.
For a commercial or industrial project, residential CFA vendor status may be irrelevant. The buyer should instead verify the entity’s contracting authority, electrical and structural responsibility, safety plan, insurance, similar project references, commissioning method, O&M capacity, and applicable utility process.
Use the PM Surya Ghar vendor verification guide when residential CFA is in scope. Use the broader solar installer selection guide to compare non-brand-specific EPC evidence.
Judge the site survey before judging the sales proposal
A competent installer uses the survey to find constraints that change design, cost, and generation. The visit should cover the electricity account, roof, access, shadows, electrical interconnection, and future loads.
Ask the surveyor to record:
- At least 12 months of electricity consumption where available, plus tariff category and sanctioned load
- Roof dimensions, usable zones, orientation, obstructions, parapets, water tanks, and access paths
- Visible roof condition and the need for a qualified structural assessment
- Shading from nearby buildings, trees, tanks, and seasonal sun paths
- Inverter location, cable route, main distribution board, meter location, and earthing arrangement
- Space for safe maintenance and module cleaning
- Future loads such as an electric vehicle, air conditioner, heat pump, or business expansion
A phone estimate based only on the monthly bill can support an early conversation. It cannot replace a final design. The proposal should explain how the recommended capacity follows from consumption, usable roof area, sanctioned load, and local export rules.
If you want to understand what a design team should evaluate, SurgePV’s solar shadow analysis software page explains how roof obstructions affect irradiance, while the solar design platform shows the layout, string-sizing, and bill-of-material workflow used by professional installers.
Audit the Roof and Electrical Design Independently
Manufacturer channel status is not a design certificate. Require a named designer and reviewer to accept responsibility for the actual roof, structure, electrical connection, and issued drawings.
Roof and structural scope
The survey should identify the roof system, condition, age, access, drains, parapets, water tanks, skylights, vents, shade, fall hazards, and any planned repair. A concrete terrace, standing-seam roof, trapezoidal sheet, fragile tile, and aging industrial shed need different attachment and load-path decisions.
Ask the structural reviewer to state:
- Applicable site loads and design basis
- Existing roof material and observed condition
- Module and mounting dead load
- Wind actions and load combinations
- Load path to the supporting structure
- Anchor, clamp, or ballast calculation
- Pull-out or field-test requirement
- Waterproofing and corrosion interfaces
- Edge, corner, access, and maintenance zones
- Construction tolerances and inspection points
“Standard structure” is not an engineering deliverable. A module installation manual can define module handling, mounting zones, clamps, and limitations. It cannot prove that the building, fasteners, purlins, roof sheet, waterproofing, or ballast design is adequate.
The Central Electricity Authority’s 2023 safety regulations contain solar-installation provisions for access, isolation, protection, earthing, and related safety matters. A qualified reviewer should apply the current requirements to the actual system and local authority process.
DC and AC drawings
Require a dimensioned layout, string plan, single-line diagram, equipment schedule, cable schedule, earthing plan, monitoring architecture, and protection schedule before installation. The drawings should reconcile with one another and with the signed bill of materials.
The single-line diagram should show the array groups, strings, inverter inputs, isolation, overcurrent devices where used, surge protection, AC distribution, point of connection, meter, export control where required, earthing, and equipment ratings. The designer should document fault and protection assumptions rather than copying a generic residential diagram.
Check these interfaces:
| Interface | Required evidence |
|---|---|
| Module to rail | Approved clamp zone, fastener and torque basis, module orientation |
| Module to string | Exact connector, cable, polarity, voltage, current, and grouping |
| String to inverter | MPPT allocation, input count, DC isolation, protection, labelling |
| Inverter to building | Phase, cable, breaker, fault rating, board capacity, isolation |
| Building to grid | Meter, point of connection, sanctioned capacity, export and utility conditions |
| System to earth | Bonding, conductor, electrode or existing-system interface, test method |
| System to owner | Monitoring account, alarms, data access, shutdown and service instructions |
Construction control
The installer should issue a method statement and inspection plan. It should cover material receipt, storage, roof access, lifting, fall protection, drilling, swarf removal, sealing, module handling, cable support, connector assembly, torque control, polarity, labelling, testing, housekeeping, and weather restrictions.
Do not allow uncontrolled mixed connectors, unsupported cable loops, cables resting in water paths, sharp bends, unsealed penetrations, or inaccessible isolators. Photograph concealed or hard-to-inspect work before it is covered.
The owner or independent reviewer should approve hold points after structure installation, before module placement where needed, after DC work, after AC and protection work, and before energisation. Authorization cannot cure hidden workmanship defects later.
Compare solar quotations line by line
Do not compare ₹/kW until every bidder is pricing the same deliverables. Create one comparison sheet and mark every omission as either an added cost or an unresolved risk.
| Quote field | What a clear proposal should state | Red flag |
|---|---|---|
| System size | Module DC capacity and inverter AC capacity, both in kW | One capacity figure with no DC/AC distinction |
| Modules | Manufacturer, exact model, wattage, quantity, technology, and warranty document | “Tier 1 panel” with no model |
| Inverter | Manufacturer, model, phase, rated capacity, monitoring, and warranty | Model to be decided after payment |
| Mounting structure | Material, coating, roof interface, clearance, and engineering basis | “Standard structure” without specification |
| Electrical balance of system | Cable make/size, connectors, AC/DC protection, isolators, earthing, and lightning protection where required | “All accessories included” |
| Engineering | Layout, string plan, single-line diagram, generation estimate, and structural responsibility | No drawing before installation |
| Statutory work | Portal support, feasibility, net-meter coordination, inspection, and commissioning responsibility | Approval fees and responsibility unclear |
| Civil and access work | Waterproofing treatment, cable trays, scaffolding, crane, trenching, or exclusions | Surprise site charges |
| Handover | Test reports, as-built drawings, datasheets, serial numbers, warranties, and training | Final payment before documentation |
| Service | Response channel, labour coverage, monitoring, cleaning/AMC scope, and escalation route | “Lifetime service” with no written terms |
Ask each installer to state whether GST and every approval-related charge are included. Also clarify who pays for meter work, sanctioned-load changes, roof repairs, internet connectivity, and replacements after the installer’s workmanship warranty ends.
Freeze the Exact Adani Module Before Ordering
“Adani panel” is not a bill of materials. Module families can contain multiple formats, electrical ratings, cell technologies, glass and backsheet constructions, connector arrangements, and power bins. The buyer must contract an exact model code or a tightly controlled approved-equivalent process.
Adani Solar’s official downloads page publishes current product-family material, datasheets, an installation manual, a warranty card, and certificate links. Use it as the manufacturer-side reference. Do not assume that an attachment sent by a bidder is current or applies to the delivered module.
Create the module identity sheet
Record these fields before issuing the purchase order:
- Manufacturer legal entity shown on the proposed product record
- Brand and exact commercial series
- Complete model or SKU code
- Nominal wattage and permitted power-bin substitution
- Module dimensions, mass, cell layout, frame, glass, and backsheet or glass-glass construction
- Maximum system-voltage basis and applicable electrical ratings
- Connector and cable details
- Factory identity where material to compliance or eligibility
- Datasheet revision and access date
- Applicable BIS registration and certificate scope
- Applicable ALMM List-I entry and date
- Applicable DCR or cell-list evidence where the programme requires it
- Product and performance warranty document revision
The installer may propose a substitution because inventory changed. Do not accept “same brand, higher wattage” without a design revision. A different module can change quantity, total DC capacity, rail positions, roof coverage, clamp zones, string voltage, current, connector compatibility, inverter loading, and the project eligibility record.
Use a written substitution request that states the old and new models, quantity, DC capacity, price, drawing changes, string changes, structural effect, certificate evidence, ALMM or DCR effect, warranty effect, delivery effect, and approval names.
Match the transaction to the delivered modules
At delivery, reconcile:
- Approved bill of materials
- Purchase order
- Distributor or supplier invoice
- Installer tax invoice
- Packing list and pallet identity
- Module labels and model codes
- Wattage bins and quantities
- Individual serial numbers
- Visible transport condition
- Warranty registration or certificate workflow
Photograph representative pallet labels, every module label or an agreed auditable sampling plus the complete electronic serial list, and any visible damage. Preserve serials in a machine-readable file. The as-built record should show which module quantity was installed and which damaged or spare units were removed from the project.
Adani Solar’s warranty certificate page uses invoice and module-serial inputs in its displayed workflow. Test the applicable process before final payment. A successful lookup can support traceability, but it does not prove that the roof installation, electrical design, or warranty claim itself will be accepted.
Separate ALMM, DCR, and BIS
These terms are often collapsed into one “approved panel” statement. They are different controls.
The MNRE ALMM page publishes current lists, amendments, clarifications, applicability documents, and dated updates. Verify the exact manufacturer and model against the list applicable to the project type and relevant date. Do not use a brand-level screenshot or another power class as a substitute.
DCR concerns domestic-content conditions under the applicable programme. It can require evidence about cells and modules, not merely an Indian brand, Indian invoice, or Indian assembly address. Read the current scheme and DCR documents for the project. Preserve declarations, invoices, factory and serial evidence required by that process.
The Bureau of Indian Standards Scheme II solar-product table identifies compulsory-registration categories and standards. Check the actual BIS registration, model series covered, manufacturing site, validity, and standard. A certificate for a related model or factory is not automatic evidence for the delivered SKU.
Use this decision table:
| Control | Main question | Does not prove |
|---|---|---|
| Manufacturer traceability | Did the module come through a supported, identifiable product chain? | Scheme eligibility or installation quality |
| ALMM | Is the exact model and manufacturer listed for the applicable project and date? | DCR by itself or installer authorization |
| DCR | Does the supplied product satisfy the applicable domestic-content condition and evidence process? | General performance or warranty service |
| BIS | Does the exact product fall within a valid applicable registration and standard scope? | ALMM, DCR, or EPC workmanship |
| PM Surya Ghar vendor status | Can the named vendor use the applicable residential portal and DISCOM route? | Adani channel status or best-in-class delivery |
Any unresolved mismatch should stop procurement until the buyer obtains written clarification from the relevant authority or manufacturer.
Check the Inverter and Complete System Fit
A genuine module can still be installed in a poor system. Record module open-circuit voltage, operating voltage, short-circuit current, operating current, temperature coefficients, and string quantity from the exact datasheet. The designer should show:
- Cold-condition string open-circuit voltage below the inverter’s permitted maximum
- Hot-condition operating voltage within the MPPT range
- String current within input and tracker limits
- Roof planes and shade groups assigned to suitable MPPTs
- DC-to-AC ratio within the exact inverter and project design basis
- Compatible connectors and cable design
- Inverter phase, grid, export-control, monitoring, and protection fit
The module distributor does not select or warranty the inverter unless the written transaction says so. Compare the inverter separately using the solar inverter price and scope guide. Never describe an inverter as ALMM-listed. ALMM module and cell lists are not inverter authorization lists.
Never accept a generation promise based only on module wattage. Production depends on irradiance, orientation, shade, temperature, system losses, grid availability, clipping, downtime, and curtailment. A useful proposal states every assumption. Model the array with shadow analysis, then connect the technical result to the bill and tariff case in the generation and financial tool.
Separate Manufacturer Warranty From Installer Remedy
A long module-performance term is not a complete system warranty. It may define a declining output obligation under stated test and claim conditions. It does not automatically pay for diagnosis, a roof visit, safe removal, freight, temporary storage, replacement labour, reinstallation, recommissioning, or lost generation.
Read the exact current warranty document for the contracted SKU and manufacturer legal entity. Record:
- Product warranty term and covered defect definition
- Performance curve, measurement basis, tolerance, and remedy
- Start date and required proof of purchase
- Registration or certificate procedure
- Required serial and invoice evidence
- Exclusions for handling, storage, installation, environment, modifications, cleaning, or third-party equipment
- Notice period and claim submission route
- Testing authority and who pays testing
- Repair, replacement, refund, or other stated remedy
- Freight, customs, insurance, removal, and reinstallation treatment
- Ownership-transfer conditions
- Governing terms and escalation route
Do not summarize these as “manufacturer warranty included.” Attach the document to the contract and identify its revision date.
Build a warranty responsibility matrix
| Failure or issue | Manufacturer-side question | Installer or EPC question |
|---|---|---|
| Module physical defect | Does the exact product warranty cover it and what evidence is required? | Who inspects, documents, removes, ships, and reinstalls? |
| Lower-than-expected energy | Is there an accepted module test result under warranty terms? | Were shade, strings, soiling, inverter, grid, downtime, and model assumptions checked? |
| Roof leak | Usually outside module product warranty | Which attachment or waterproofing remedy applies? |
| Loose or damaged cable | Usually outside module product warranty | Which workmanship term covers correction and consequential damage? |
| Broken module after installation | Was it a covered product defect, transport issue, impact, or handling damage? | Who bore custody and installation risk at the event time? |
| Inverter fault | Separate inverter-manufacturer process | Who diagnoses, removes, ships, replaces, configures, and recommissions? |
| Monitoring loss | Usually not a module claim | Who owns the account, communications, subscription, logger, and data support? |
| Utility trip or export issue | Not proof of module defect | Who checks settings, voltage, cable rise, protection, meter, and DISCOM interface? |
Require separate written terms for module product, module performance, inverter, mounting structure, other balance-of-system equipment, installation workmanship, waterproofing responsibility, monitoring, and any operations and maintenance service.
Contract labour and downtime
Ask for a local response target, triage method, site-visit trigger, escalation, spare strategy, and closure evidence. Define business hours and holidays. State whether travel, access equipment, labour, freight, removal, reinstallation, testing, and recommissioning are included or chargeable.
A replacement module may have a different power bin or dimensions years later. The contract should explain how the installer will assess electrical, structural, aesthetic, connector, and warranty compatibility. Do not promise an identical future replacement unless the responsible party supports that commitment.
For commercial projects, quantify the approval path for shutdowns and the treatment of consequential loss. Many product warranties exclude business interruption or lost revenue. Price the service and spare strategy separately from the headline warranty term.
Use the solar inverter warranty guide for the inverter-side remedy. The module and inverter claim paths should meet at one accountable EPC service desk, even if different manufacturers make the final product decisions.
Use milestones to control payment and handover
A fair payment schedule follows verifiable progress. Avoid paying nearly the full amount before equipment delivery, approval, and commissioning.
The exact percentages are commercial terms, so negotiate them. Link each payment to evidence such as technical feasibility, approved design, equipment delivery with matching serial numbers, completed installation, DISCOM inspection, commissioning, and delivery of the document pack.
Before final payment, collect:
- Tax invoice and itemised bill of materials
- As-built layout and single-line diagram
- Module and inverter serial-number list
- Equipment datasheets and warranty certificates
- Earthing and commissioning test records
- Net-meter and DISCOM documentation applicable to the project
- Monitoring login owned by the customer
- Service contacts and escalation process
The net-metering guide explains why grid accounting and approval should be treated as part of the delivered system, not an afterthought.
Inspect, Commission, and Hand Over the Exact Plant
Commissioning should prove that the installed plant matches the approved design and operates within its defined interfaces. An inverter screen showing power is not a commissioning record.
The qualified commissioning team should define and record the applicable tests. The evidence pack commonly includes:
- Module model, quantity, wattage-bin, and serial reconciliation
- Final array layout against the approved drawing
- Structure fastener, clamp, torque, anchor, ballast, corrosion, and waterproofing checks
- Cable support, segregation, bend, entry, connector, and labelling checks
- String polarity and open-circuit voltage comparison
- Insulation-resistance test under a suitable safe procedure
- Protective-conductor continuity and earthing results
- Breaker, fuse, isolator, and surge-device ratings
- Protection settings and functional tests
- Inverter start, stop, fault, and grid-disconnection observations
- Meter direction and export-control test where applicable
- Phase readings and balance where relevant
- Monitoring values reconciled with local readings
- Closed punch-list items and final photographs
Do not invent a universal pass value. Test method, conditions, instrument, calibration, acceptance criteria, and reviewer depend on the equipment, design, standard, authority, and site.
The handover pack should include the signed contract, approved changes, tax invoices, purchase-order references, exact module and inverter serials, as-built layout, string plan, single-line diagram, structural basis, equipment data sheets, applicable certificates, installation manual, warranty documents, commissioning results, utility records, monitoring credentials, shutdown procedure, maintenance plan, service contacts, and escalation route.
Give the owner administrator control of the monitoring account and recovery method. Record who can add users, change settings, export data, and receive alerts. Dealer-only ownership can strand the owner if the dealer closes or the commercial relationship ends.
Link payment to evidence
Use milestones such as design approval, matched equipment delivery, mechanical completion, electrical completion, utility milestone, commissioning, defect closure, and final handover. Negotiate the percentages for the project. Retain enough unpaid value to correct open defects and missing documents.
Any change should use a written order stating reason, drawing reference, quantity, price, tax, schedule, energy, eligibility, certificate, and warranty effect. Verbal substitutions break traceability.
Test Local Service Instead of Accepting a Network Claim
Ask for the service address, named coordinator, coverage boundary, business hours, response target, site-visit trigger, escalation contacts, diagnostic capability, spares access, and charges. Confirm which legal entity actually sends the technician.
Call recent customers with consent. Select references with similar roof type, project scale, connection, and location. Ask about:
- Whether contracted module models and serial records matched delivery
- Roof damage, leaks, corrosion, loose cables, or workmanship corrections
- Approval and commissioning delays and who resolved them
- Monitoring handover and alert response
- Time to acknowledge and attend a fault
- Labour, travel, freight, and replacement charges
- Quality of as-built drawings and test records
- Whether the same legal entity remained accountable after payment
Treat testimonials chosen by the seller as one input, not a performance dataset. Inspect at least one comparable operating site where the owner permits it. Look for cable support, labels, access, drainage, corrosion, connector protection, inverter environment, panel condition, and document quality.
A broad “pan-India” statement does not establish response time at the project address. A distributor network may move products efficiently while installation service is subcontracted. Contract the actual local remedy.
Score installers with a weighted decision matrix
Price should influence the choice, but it should not erase engineering and service risk. Score every shortlisted company on the same evidence.
| Criterion | Suggested weight | Full-score evidence |
|---|---|---|
| Eligibility and compliance | 15% | Current vendor status where applicable; exact product compliance verified |
| Survey and design quality | 20% | Site-specific layout, shade review, string plan, SLD, and clear assumptions |
| Equipment and scope clarity | 15% | Exact models and complete balance-of-system specification |
| Execution capability | 15% | Named project owner, schedule, safety plan, and comparable references |
| Warranties and service | 20% | Separate written warranties, local response path, and handover process |
| Commercial terms | 15% | Transparent total price, exclusions, taxes, and milestone payments |
Score each criterion from 1 to 5. Multiply the score by its weight, then compare totals. A vendor that scores 5/5 on price but 2/5 on design and service should not win automatically.
This matrix is an editorial framework, not a government rating. Adjust the weights for your project. A fragile or complex roof may justify more weight for engineering, while a remote C&I site may need more weight for O&M response.
A Disclosed Related-Company Resource
Disclosure: SurgePV and Heaven Green Energy have a common commercial relationship. The following is a sponsored related-company resource, not independent proof of an Adani appointment, product identity, or installer quality.
Heaven Green Energy publishes a guide to checking Adani panel identity. Use it as a secondary buyer checklist only. Current Adani Solar confirmation, exact invoices, labels, serials, official downloads, certificate scope, and contract evidence remain the controlling checks.
Apply this article’s legal-entity, authorization, product, design, warranty, and service gates to Heaven Green and every other bidder. No related-company relationship should reduce the evidence required.
Red flags that justify walking away
Stop the purchase process if an installer will not resolve a material uncertainty in writing. Common warning signs include:
- Asking to create or control your National Portal account or OTP
- Claiming “MNRE approved” without a verifiable DISCOM listing where registration applies
- Pressuring you to install before technical feasibility or required approval
- Refusing to identify module or inverter model numbers
- Guaranteeing a zero bill without analysing usage, tariff, fixed charges, and export treatment
- Quoting an annual generation figure with no location, shading, loss, or availability assumptions
- Offering one vague “25-year warranty” for the whole system
- Excluding structure, protection, scaffolding, meter work, or taxes only after payment
- Providing no local service contact or documented escalation path
- Using another company’s registration, invoice, or warranty identity without explaining the contractual chain
A polished proposal is not proof of good installation work. Ask for 2 or 3 recent, comparable customers you can contact, subject to their consent. Discuss schedule adherence, workmanship, monitoring setup, documentation, and how the company handled a fault.
A 10-step installer-selection process
Use this sequence to keep the decision evidence-based:
- Gather 12 months of electricity bills and note planned future loads.
- Confirm property ownership, tariff category, sanctioned load, and scheme eligibility.
- Shortlist vendors serving your location and verify current registration where required.
- Give every bidder the same information and request a physical or technically adequate site survey.
- Ask for a site-specific layout, capacity rationale, generation assumptions, and full bill of materials.
- Normalise quotations using the comparison table above.
- Verify exact module and inverter models, compliance, and warranty documents.
- Check comparable references and local after-sales capability.
- Score the bids before negotiating price and payment milestones.
- Sign only when scope, exclusions, schedule, warranties, approvals, and handover documents are written into the agreement.
Final Decision Rule
Approve the bidder only when four chains reconcile: legal entity, manufacturer channel, exact product, and EPC delivery. A gap in one chain is not corrected by strength in another. The safest offer is the one that can be audited from Adani Solar confirmation through invoice and serials to the as-built plant, commissioning record, warranty remedy, and named local service contact. Keep unresolved items as written conditions before order, not promises to close after payment.
Frequently asked questions
How do I verify an Adani Solar panel installer?
Ask Adani Solar through its current official contact route to confirm the counterparty’s exact legal name, role, territory, product scope, and validity date. Save the response. Then match that entity to the contract, GSTIN, bank account, invoice, module SKU, serials, warranty route, installation responsibility, and local service evidence.
Is an authorised Adani Solar distributor automatically an installer?
No. A distributor or channel partner may be authorised to supply specified products without being appointed to survey, design, install, commission, obtain utility approval, or provide workmanship service. Require written evidence for each role and contract the EPC duties separately.
How can I check whether Adani Solar modules are genuine?
Match the purchase order, tax invoice, packing list, module label, exact model code, wattage bin, factory identity, and serial list. Compare them with the current manufacturer datasheet and applicable certificate scope. Use Adani Solar’s invoice and serial-based warranty portal where applicable, and obtain written clarification for any mismatch.
Do ALMM, DCR, and BIS mean the same thing?
No. ALMM is a current model and manufacturer list with defined project applicability. DCR concerns domestic-content conditions under the applicable programme. BIS registration concerns the exact product and standard scope. None of these controls authorises an installer or proves workmanship quality.
Does Adani module warranty cover installation work?
Not automatically. Manufacturer product and performance terms concern the module under their written conditions. Roof attachments, waterproofing, wiring, protection, labour, travel, freight, removal, reinstallation, monitoring, and downtime need separate written installer or EPC remedies.
What should an Adani module quotation include?
It should identify the exact module model, wattage bin, quantity, DC capacity, manufacturer legal entity, datasheet, applicable certificates, invoice chain, serial handover, and warranty route. The EPC quote must separately define inverter, structure, cables, protection, earthing, approvals, installation, testing, tax, exclusions, payment, and service.
Can I rely on an old Adani authorization letter?
No. Treat an old letter as a lead only. Verify the legal entity, role, territory, product scope, issue date, expiry, conditions, and current status directly with Adani Solar. A letter for another group company, branch, product, or period does not prove the present transaction.
When should I release final payment to the installer?
Release final payment only against the agreed evidence gates, including approved design, matched equipment and serials, completed installation, closed defects, applicable utility milestones, signed commissioning tests, monitoring ownership, invoices, warranties, as-built drawings, and service contacts. Keep a written retention for unresolved work.
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Method note: This guide was reviewed on 10 August 2026 against current Adani Solar, MNRE, National Portal, BIS, CEA, GST, and company-data sources. Channel roles, product documents, lists, scheme rules, and vendor records can change. Verify them again before contracting and delivery.