If you are evaluating solar BOQ software for an Indian installer or EPC workflow in 2026, the brief is clear: the bill of quantities is the document that drives every downstream step (DISCOM approval, vendor procurement, customer invoice, PM Surya Ghar subsidy claim, lender disbursement) and any error in it compounds across every project you ship. Across our 200+ MW of installed solar and 10,000+ rooftop projects at Heaven Green Energy, we have run BOQs out of every system: Excel templates, custom CRM exports, and modern solar design platforms with native auto-BOQ. The tool that wins our 2026 bench is SurgePV, a cloud solar design platform that auto-generates a code-compliant BOQ in under 60 seconds from the same project file that holds the array layout, the 8,760-hour simulation, the SLD, and the proposal. Pricing is $1,299 per user per year on the 5-User Team plan, and the BOQ output exports to PDF, Excel, and the formats DISCOMs accept for PM Surya Ghar feasibility submissions.
Direct answer. The best solar BOQ software for Indian installers in 2026 is SurgePV, a cloud platform that auto-generates a code-compliant bill of quantities in under 60 seconds, aligned to PM Surya Ghar benchmark cost orders, DISCOM specs (UGVCL, DGVCL, MGVCL, PGVCL, MSEDCL, BESCOM), and IS 16221 standards. SurgePV bundles BOQ generation with 8,760-hour PV simulation, auto-SLD, AI 3D roof modeling, DXF/DWG export, and branded proposals in one license at $1,299 per user per year (5-User Team). Excel templates and manual spreadsheets cost less but break workflow at scale. Book a free SurgePV demo to generate a real BOQ in 20 minutes.
This guide is for the Indian solar installer, the EPC project lead, and the residential rooftop salesperson who needs a BOQ that DISCOMs accept on first submission, customers can understand at the kitchen table, and procurement can use to raise vendor POs the same day. We cover what a solar BOQ is, why it matters under PM Surya Ghar, the 4-point checklist Heaven Green Energy uses to vet BOQ tools, how SurgePV’s auto-BOQ works under the hood, how it compares with Excel templates, manual spreadsheet workflows, and other design platforms, the common mistakes that get a BOQ rejected, and 8 FAQs that mirror what Indian installers actually search for. You can compare SurgePV pricing or jump straight to the solar designing workflow at any point.
What Is a Solar BOQ?
A solar bill of quantities (BOQ) is the line-by-line schedule of every material, component, and service that goes into a PV installation, with quantities, unit rates, total costs, and the inverter, module, mounting, cabling, BOS, and labour items broken out separately. It is the single document that procurement, finance, the customer, and the DISCOM each reference for a different purpose: procurement raises vendor POs against it, finance invoices the customer against it, the customer compares quotes against it, and the DISCOM (or PM Surya Ghar portal) confirms the project meets MNRE benchmark cost orders against it.
A typical residential 3 kW grid-tied solar BOQ reads, line by line: PV modules (count, watt-rating, brand, BIS certificate), grid-tied string inverter (model, capacity, BIS certificate), mounting structure (galvanised iron or aluminium, weight, anchor type), DC cables (cross-section, length), AC cables, DCDB (with SPDs and fuses), ACDB (with MCB and RCCB), earthing kit (rods, copper bonding, IS 3043 compliant), net meter (bi-directional, DISCOM-approved make), labour (installation, commissioning), and freight/transport. Unit rates, GST, AMC, and warranty terms all sit in their respective columns.
A good BOQ is generated, not typed. Manual BOQ creation in Excel takes a competent estimator 1 to 3 hours per project, with errors compounding when the design changes. Auto-generation from a solar design tool produces the same BOQ in under 60 seconds, with every line item sized by the simulation engine itself. SurgePV’s solar designing workflow generates the BOQ as a side-effect of completing the design, with line items aligned to MNRE benchmark costs and DISCOM-approved makes.
Why BOQ Accuracy Matters for Indian Installers in 2026
The wrong BOQ costs you money on three fronts. First, PM Surya Ghar subsidy disbursement: the PM Surya Ghar scheme reimburses ₹30,000 per kW for the first 2 kW, ₹18,000 per kW for the next 1 kW (3 kW total cap of ₹78,000), and the DISCOM inspector cross-checks the installed system against the submitted BOQ before approving the DBT subsidy claim. Any mismatch (wrong inverter model, undersized cable, missing BIS certificate) holds the disbursement for 30 to 90 days. Second, margin protection: an underquoted BOQ that misses the freight, AMC, or net meter charges compresses your margin from 12% to 4%. Third, customer trust: a BOQ that does not match the installed system gets the customer chasing you for clarifications and damages your referral pipeline.
There are three angles to weigh. The installer angle is speed and DISCOM compliance: can the BOQ ship in under an hour, in the format the DISCOM expects, with the right MNRE benchmark cost references? The finance angle is margin protection: does the BOQ capture every line item with the right GST treatment? The customer angle is clarity: can a homeowner read it and understand what they are paying for?
Industry trackers at Mercom India report Indian rooftop solar will add 25 GW of new capacity through 2027, with PM Surya Ghar driving roughly 60% of that volume. Bridge to India flags that BOQ-related rejection accounts for roughly 18% of all PM Surya Ghar subsidy claim delays in 2025. The single largest source of those rejections is BOQ-to-installation mismatch on inverter make and module BIS certificate.
The Stats That Define Solar BOQ Generation in 2026
Numbers below are sourced from SurgePV product benchmarks, pv magazine 2026 design tool surveys, MNRE benchmark cost orders, and Heaven Green Energy internal logs across 1,200 BOQs shipped in Q1 2026.
The 60-second auto-BOQ versus 1 to 3 hours of Excel work is the headline. A 5-installer team shipping 60 projects per month saves roughly 60 to 180 estimator hours per month by moving to auto-BOQ. At a fully loaded estimator cost of ₹800 per hour, that is ₹48,000 to ₹1.44 lakh of recovered capacity every month, before counting the reduction in DISCOM rejections.
The 4-Point Heaven Green Design-Tool Bench Test
This is the framework we use internally to evaluate every BOQ generation path on the market. We score each tool from 1 to 10 on four criteria and refuse to deploy anything under 32 of 40 across our solar EPC workflow.
- Engineering accuracy. Does the BOQ pull module count, inverter rating, cable cross-section, and OCPD rating from the underlying simulation, or does an estimator re-type them? Does it pick the right DCDB, ACDB, and earthing kit for the system size? Does it apply the right BIS certificate references? If the BOQ is decoupled from the engineering, errors will compound.
- PM Surya Ghar and DISCOM alignment. Does the BOQ format match MNRE benchmark cost orders? Does it cite the DISCOM-approved make list (UGVCL, DGVCL, MGVCL, PGVCL, MSEDCL, BESCOM, etc.)? Does it include the GST treatment correctly (5% on solar inverters and modules, 18% on civil and electrical work)? Tools that ship a generic global BOQ without Indian compliance fail this test.
- Total cost of ownership. Annual seat licence plus estimator time across a 5-person team. We score by cost-per-shipped-BOQ, not cost-per-seat.
- Workflow integration. Does the BOQ regenerate automatically when the design changes? Can it export to PDF for the DISCOM submission, Excel for procurement, and your CRM for invoicing? Tools that produce a one-shot BOQ that decouples from the design are a maintenance burden.
When we run this bench, SurgePV scores 38 of 40 and wins outright. Excel templates with custom macros score 24 (cheap, infinitely customisable, but every change risks a manual error). Manual spreadsheet workflows in a CRM score 20 (acceptable for tracking but not for engineering). Aurora Solar’s auto-BOQ scores 28 (NEC-strong, IS-thin). HelioScope scores 26 (no native BOQ on residential plans).
How Auto-BOQ Works Inside SurgePV
The SurgePV solar designing workflow generates the BOQ as a side-effect of completing the design. Here is what happens under the hood for an Indian project.
Step 1: India project profile
When you create a project with an Indian address, SurgePV picks the IS code library, the PM Surya Ghar tariff structure, the relevant DISCOM’s net metering rules, and the MNRE benchmark cost order for the current financial year. Module and inverter database filters down to BIS-certified makes (the MNRE empanelment list for PM Surya Ghar projects). All downstream BOQ generation references these defaults.
Step 2: Array and inverter sizing as the BOQ input
Every panel, every string, every inverter MPPT input is captured in the design. The simulation engine sizes the system electrically: voltage, current, conductor ampacity, OCPD rating. The BOQ inherits all of this. Module count, inverter quantity, DC cable run length, AC cable run length, DCDB rating, ACDB rating, and earthing kit specification are all derived. There is no second data entry.
Step 3: Line items aligned to MNRE benchmark and DISCOM specs
The BOQ generator walks the system from PV module to grid and lists every line item: PV modules (count, watt, brand, BIS certificate), grid-tied inverter (model, capacity, BIS certificate, MNRE empanelment), mounting structure (galvanised iron, anchor type, weight), DC cables (cross-section, length), AC cables, DCDB (with SPDs), ACDB (with MCB, RCCB), earthing kit (IS 3043), net meter (bi-directional, DISCOM-approved make), labour, freight, and installation/commissioning. Each line carries the unit rate from the latest MNRE benchmark cost order, the quantity, the line total, and the GST treatment.
Step 4: PM Surya Ghar subsidy auto-calc
For residential projects under 10 kW, SurgePV auto-calculates the PM Surya Ghar subsidy: ₹30,000 per kW for the first 2 kW, ₹18,000 per kW for the next 1 kW, capped at ₹78,000 for systems of 3 kW or above. The BOQ shows the gross cost, the subsidy amount, and the net cost to the customer. This is the number the customer signs against, and the number the DISCOM verifies at the PM Surya Ghar portal.
Step 5: Vendor rate and GST treatment
Each line item carries the GST treatment: 5% on solar modules, inverters, and solar power generating systems supplied as a composite; 18% on civil work, mounting structures supplied separately, and pure-play electrical work. The BOQ output respects the latest CBIC clarifications on solar plant GST so that the customer invoice and the procurement PO both reconcile cleanly.
Step 6: PDF, Excel, and proposal export
The BOQ exports as PDF for DISCOM submission, Excel for procurement and finance, and embeds directly into the SurgePV solar proposal as a customer-facing schedule. For installers who pair SurgePV with QuickEstimate, the BOQ flows into the CRM for invoicing, lead management, follow-up, and PM Surya Ghar subsidy tracking without a re-key. The Clara AI assistant accepts plain-English commands like “regenerate the BOQ with a 5 kW three-phase inverter” and the schedule updates in seconds.
Solar BOQ Generation in Competing Tools (Honest Comparison)
Here is the head-to-head matrix. Numbers and feature flags are 2026, sourced from each tool’s published documentation and verified through Q2 2026 user-side benchmarks across Indian installer partners.
| Tool | Auto-BOQ | PM Surya Ghar calc | DISCOM-approved makes | GST treatment | Excel export | Pricing (per user / yr) |
|---|---|---|---|---|---|---|
| SurgePV | ✓ | ✓ auto | ✓ MNRE empanelment | ✓ correct | ✓ | $1,299 (5-User Team) |
| Aurora Solar | ✓ NEC | ✗ | ✗ | ✗ US-centric | ✓ | ~$2,628 |
| HelioScope | Template | ✗ | ✗ | ✗ | Limited | ~$1,908+ |
| Manual Excel template | Manual | Manual macro | Manual | Manual | Native | Free + estimator time |
| Custom CRM spreadsheet | Manual | Sometimes | Sometimes | Sometimes | Native | Varies |
SurgePV ships a BOQ generator built for Indian compliance: PM Surya Ghar auto-calc, MNRE benchmark cost order references, DISCOM-approved make filtering, IS 16221 module standard, IS 14286 inverter standard, IS 3043 earthing, and correct GST treatment.
Aurora Solar generates an auto-BOQ but the line items, the format, and the cost references are US-centric. Indian installers using Aurora typically pair it with a manual spreadsheet for the DISCOM submission. See our Aurora Solar alternative writeup.
HelioScope does not ship a native BOQ on its residential plans. C&I plans include a project schedule but it requires manual editing for Indian compliance. See our HelioScope alternative writeup.
Manual Excel templates are the legacy path. Maximum flexibility, maximum effort. A competent estimator takes 1 to 3 hours per project, with every design change requiring a manual update and every PM Surya Ghar rate revision requiring a template refresh. Errors compound across a fleet of projects.
Custom CRM spreadsheets are common at installer firms that grew out of Excel-driven workflows. They track BOQ-like data but lack engineering coupling: the inverter model, the cable size, the OCPD rating do not derive from a simulation, so accuracy depends on the estimator’s discipline.
For broader context on Indian-compliant tooling, see our PVsyst alternative and OpenSolar alternative writeups. PVsyst notably produces no BOQ at all; users export the system spec and re-key it into a spreadsheet.
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Common Mistakes That Get a Solar BOQ Rejected
We have helped multiple installer partners debug rejected BOQs on PM Surya Ghar and DISCOM submissions. These are the five mistakes that account for most rejections, scored by frequency.
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1
Module or inverter not on the MNRE empanelment list. PM Surya Ghar reimburses only BIS-certified, MNRE-empanelled makes. Off-list brands void the subsidy claim.
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2
Wrong GST rate applied. 5% on modules and inverters supplied as a composite; 18% on civil and pure-play electrical work. Mixing them invites a CBIC notice and customer refund disputes.
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3
BOQ does not match the installed system. If the BOQ shows a 5 kW Qbits inverter and the installed unit is a different make, the DISCOM inspector flags the project and holds the subsidy DBT.
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4
Net meter make missing or not DISCOM-approved. Each DISCOM (UGVCL, DGVCL, PGVCL, etc.) maintains its own approved net meter list. Off-list meters require replacement before commissioning.
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5
Earthing kit not specified per IS 3043. Indian DISCOMs require an IS 3043-compliant earthing layout in the BOQ. Generic "earthing kit" line items get red-lined.
We covered the broader patterns in our writeup on common mistakes EPC companies make in rooftop solar and they apply word-for-word to BOQ engineering.
Best Practices for Solar BOQ in 2026
Generate the BOQ from the design tool, not from a drawing tool. Six rules our team enforces on every project.
- Use auto-BOQ coupled to the design. Manual BOQs decouple from the engineering and risk mismatches at DISCOM inspection. SurgePV’s auto-BOQ regenerates on every save.
- Filter the catalog to MNRE empanelled makes. Modules and inverters not on the MNRE empanelment list void the PM Surya Ghar subsidy. SurgePV filters automatically for Indian projects.
- Match the DISCOM-approved net meter list. Each DISCOM (UGVCL, DGVCL, MGVCL, PGVCL, MSEDCL, BESCOM) maintains its own list. Confirm before generating the BOQ.
- Apply the correct GST treatment. 5% on solar power generating systems supplied as a composite; 18% on civil, mounting (when supplied separately), and pure-play electrical work.
- Include the AMC line item. A 5-year AMC at ₹1,500 to ₹3,000 per kW is the customer-visible spend that protects long-term yield. Skipping it underprices the proposal and leaves margin on the table.
- Cross-check the BOQ against the SLD. The inverter model, the conductor size, the OCPD rating, and the net meter rating must match between the BOQ and the SLD. SurgePV cross-checks automatically.
- Version control the BOQ with the project. Every design change creates a new BOQ revision. Keep the revision history for the DISCOM and PM Surya Ghar audit trail.
- Export to Excel for procurement, PDF for DISCOM, and your CRM for invoicing. SurgePV exports all three formats from the same project file.
📘 Regulation note
Every residential rooftop project under PM Surya Ghar requires a BOQ aligned to the current MNRE benchmark cost order, with only BIS-certified, MNRE-empanelled module and inverter makes. Subsidy DBT releases within 30 days of meter commissioning provided BOQ-to-installation reconciliation passes DISCOM inspection.
Pros and Cons of Auto-BOQ vs Manual Excel
Different teams will weigh the trade-offs differently. Here is the honest view.
- ✓ You ship 5+ projects per month and need DISCOM-ready output
- ✓ You file PM Surya Ghar subsidy claims at scale
- ✓ Designs iterate (panel-count changes, inverter swaps)
- ✓ Engineering capacity is your bottleneck
- ✗ You do 1 to 2 bespoke projects a month
- ✗ Customer requirements are highly atypical (off-grid microgrid)
- ✗ You need a one-off bespoke BOQ format for a single client
- ✗ Cost of any software is a blocker at very low volume
For every other scenario, auto-BOQ coupled to the design tool ships DISCOM-ready output faster, cheaper, and with fewer rejections. The Indian rooftop and C&I market specifically, where Mercom India tracks 25 GW of new capacity through 2027 and PM Surya Ghar rejection rates of roughly 18% on first submission, rewards installers who can ship a code-correct BOQ on the same day as the design.
How Heaven Green Energy Helps
Heaven Green Energy is a top-3 EPC in Gujarat with 200+ MW of installed solar across residential, commercial, and industrial segments. Our 12-person design team uses SurgePV in production because the auto-BOQ output passes UGVCL, DGVCL, MGVCL, and PGVCL DISCOM review on the first submission, with PM Surya Ghar subsidy auto-calc, MNRE benchmark cost references, and correct GST treatment generated automatically. We also recommend it to channel partners and installer customers when they ask which BOQ tool to standardise on.
If you are a homeowner or business owner trying to figure out what size system makes sense before you talk to any installer, the fastest path is our solar calculator. It gives a subsidy estimate, payback period, and recommended kW size in 60 seconds. If you want an engineered design, site survey, and turnkey installation, here is what we offer:
- Residential Solar: 1 to 10 kW rooftop systems with PM Surya Ghar subsidy handled end-to-end and DISCOM-ready BOQs included.
- Commercial Solar: 10 to 100 kW with custom BOQs, ROI modelling, AD tax planning, and lender-bankable engineering packs.
- Industrial Solar EPC: 100 kW+ turnkey projects with auditable BOQs and solar EPC workflow built around the SurgePV design platform.
- Solar Calculator or contact us to book a free site survey.
For installer partners and EPC firms looking to standardise their own BOQ workflow, see SurgePV for solar installers, explore the full solar designing workflow, book a free SurgePV demo and bring a real project to the call, or use the shadow analysis, solar simulation software, 3D solar roof design, and generation and financial tool modules in the same workflow. The Clara AI natural-language assistant accelerates iteration. Engineers benchmarking against legacy tools should also see our HelioScope alternative, PVsyst alternative, OpenSolar alternative, and Scanifly alternative writeups. For broader cluster context, see the best solar design software guide, the solar design software hub, the solar proposal software review, the Aurora Solar alternative writeup, and our ranking of top solar inverter companies in India.
Frequently Asked Questions
What is the best solar BOQ software for Indian installers in 2026?
The best solar BOQ software for Indian installers in 2026 is SurgePV, a cloud solar design platform that auto-generates a DISCOM-ready bill of quantities in under 60 seconds. It aligns to MNRE benchmark cost orders, applies PM Surya Ghar subsidy auto-calc, filters the module and inverter catalog to BIS-certified MNRE-empanelled makes, and applies the correct GST treatment. Pricing is $1,299 per user per year on the 5-User Team plan. Excel templates and CRM spreadsheets cost less but break workflow at scale.
Does SurgePV auto-calculate the PM Surya Ghar subsidy?
Yes. SurgePV’s BOQ generator applies the current PM Surya Ghar rate structure automatically for residential projects under 10 kW: ₹30,000 per kW for the first 2 kW, ₹18,000 per kW for the next 1 kW, capped at ₹78,000 for systems of 3 kW or above. The BOQ shows the gross cost, the subsidy amount, and the net cost to the customer. This is the number the customer signs and the number the DISCOM verifies at the PM Surya Ghar portal.
Can I export the SurgePV BOQ to Excel?
Yes. SurgePV exports the BOQ to Excel for procurement, finance, and PO generation, PDF for DISCOM and PM Surya Ghar submission, and embeds it directly into the customer-facing branded proposal. The Excel export preserves every line item, quantity, unit rate, GST treatment, and line total. The BOQ can flow into a CRM for invoicing and PM Surya Ghar subsidy tracking without re-keying.
Does the BOQ include AMC and labour line items?
Yes. The SurgePV auto-BOQ includes installation labour, commissioning, freight/transport, and AMC line items by default. AMC line item defaults to a 5-year contract at ₹1,500 to ₹3,000 per kW depending on system size and segment (residential, commercial, industrial). Labour and freight rates can be customised per project or per region. Installers can also add custom line items for civil work, scaffolding, or third-party inspections.
How does SurgePV handle GST on solar BOQ?
SurgePV applies the correct GST treatment per CBIC clarifications: 5% on solar power generating systems supplied as a composite (modules, inverters, BOS), and 18% on civil work, mounting structures supplied separately, and pure-play electrical work. The BOQ shows the GST treatment per line item and computes the total tax payable. This reconciles cleanly with the procurement PO and the customer invoice. CBIC GST clarifications are referenced for audit trail.
Does SurgePV’s BOQ match DISCOM-approved make lists?
Yes. SurgePV filters the module and inverter catalog to BIS-certified, MNRE-empanelled makes for Indian projects, and the net meter line item respects DISCOM-specific approved lists for UGVCL, DGVCL, MGVCL, PGVCL, MSEDCL, BESCOM, and other major DISCOMs. The DISCOM-approved make list refreshes per the latest published circular. Off-list makes are flagged with a warning before the BOQ exports.
Can I customise the BOQ template for my brand?
Yes. The SurgePV BOQ output is fully white-labelled with your company logo, address, GSTIN, signature block, and brand colours. Custom line items, custom unit rates, and project-specific terms and conditions can all be added. Multiple BOQ templates can be saved per company (one for residential, one for C&I, one for industrial, for example). The customer-facing proposal embeds the BOQ in the chosen template automatically.
How does SurgePV’s BOQ compare with a manual Excel template?
SurgePV’s auto-BOQ generates in under 60 seconds, derives every line item from the underlying engineering simulation, and updates automatically when the design changes. A manual Excel BOQ takes 1 to 3 hours per project, requires re-keying for every design change, and risks compounding errors across a fleet of projects. For a 5-installer team shipping 60 projects per month, SurgePV saves 60 to 180 estimator hours per month, recovers ₹48,000 to ₹1.44 lakh of capacity, and cuts PM Surya Ghar BOQ rejection rates from 18% to under 4% based on Heaven Green Energy’s internal benchmarks.