Solar Pricing Calculator Software: Rules and QA

Solar pricing calculator software is a controlled commercial rules engine. It should turn approved project quantities into versioned prices without hiding source, formula, approval, or uncertainty.

It should not design the system, invent a BOM, decide tax, guarantee subsidy, replace accounting, or promise commercial results. Each boundary needs a named authority.

Quick Answer

Solar pricing calculator software should turn a project scope and BOM into controlled quote versions. Buyers need authoritative objects, item and cost sources, units, dated rules, markup and margin formulas, discount approvals, and tax and subsidy separation. They also need immutable audit, integration reconciliation, security, regression testing, three-year cost, export, and exit. Technical design and accounting remain separate authorities.

This guide publishes no universal price, cost, tax rate, subsidy, eligibility, saving, margin, conversion, return, integration, security, support, or outcome.

Apply 18 solar pricing calculator software gates

Use mandatory gates before scoring convenience or presentation. A polished quote cannot cure an unapproved BOM, stale cost, invalid unit, wrong formula, or uncontrolled override.

Record pass, conditional pass, hold, narrower scope, or reject. Name evidence, owner, expiry, residual risk, and approving authority for every gate.

Define the commercial objects first

Pricing errors often begin before any formula runs. Customer, site, project, opportunity, quote, option, and version records can become confused or duplicated.

Minimum object register

Define an immutable identifier, human label, owner, authoritative system, create time, update time, status, parent object, and retention rule for each object.

Include customer, legal customer entity, site, project, opportunity, technical design, approved BOM, quote, quote version, option, item, supplier cost, rule set, and approval.

Add issued document, acceptance, order reference, invoice reference, credit reference, audit event, integration event, exception, and archive package when applicable.

Keep identity separate from presentation

A customer name can change. A quote identifier should not. A site may have several projects, designs, commercial options, and issued versions.

Do not reuse one quote number for revisions that change scope, price, tax presentation, equipment, validity, or subsidy scenario. Link versions through explicit lineage.

Separate customer-facing labels from internal identifiers. Prevent spreadsheet imports, CRM duplicates, and manual edits from merging unrelated sites or legal entities.

Define ownership by field

Create a system-of-record map for customer identity, site, opportunity, technical scope, BOM, supplier cost, selling rule, tax classification, quote, invoice, payment, and revenue.

Each field needs one write authority. Other systems may read, propose, or reconcile changes without silently becoming authoritative.

The solar CRM software guide owns CRM selection. The CRM quotation integration guide covers lead-to-quote handoff.

Keep technical design outside the pricing engine

The pricing engine should receive an approved scope. It should not infer a technically valid design from customer capacity, roof area, or a cost-per-kW shortcut.

Approved BOM contract

Require project ID, site ID, design ID, BOM ID, revision, equipment models, quantities, units, source document, author, approver, and approval timestamp.

Add status, permitted use, design limits, unresolved items, alternatives, expiry, and change trigger. Reject unapproved, stale, conflicting, or incomplete input.

If manual quantity entry is allowed, label it as commercial input. Route it through technical approval before issuing a quote that depends on it.

The solar BOM software guide owns technical BOM generation. The automated BOM guide covers controlled automation.

Do not infer technical scope

Pricing software does not verify array layout, structure, wind, roof, foundations, strings, protection, cable sizing, earthing, metering, storage, or interconnection.

It also does not establish generation, savings, feasibility, approval, installation, commissioning, or warranty compatibility. Those findings require their assigned sources and reviewers.

SurgePV can support separate solar design software, BOM, generation, financial-model, and proposal workflows. This page makes no native pricing or CRM claim.

Control BOM changes

When a BOM revision arrives, compare added, removed, changed, and unchanged lines. Record quantity, unit, model, source, approval, and cost effects.

Do not overwrite the BOM attached to an issued quote. Create a new commercial version and preserve the old technical-to-commercial trace.

Build a governed item master

An item master should identify what is priced, how it is measured, who supplied the cost, and when that record may be used.

Item identity

Record internal item ID, category, manufacturer, exact model, specification, variant, status, replacement, warranty reference, and permitted project family.

Separate stock item, service, labour activity, subcontract scope, freight, fee, overhead allocation, contingency, finance charge, and lifecycle allowance.

A free-text line may be necessary for an exception. Require description, category, unit, source, approver, tax review, quote scope, and expiry.

Unit and pack controls

Define base unit, purchase unit, selling unit, conversion, pack size, minimum order, wastage basis, precision, rounding, and dimensional type.

Do not mix W and kW, unit and pack, metre and roll, hour and day, fixed amount and percent, or tax-inclusive and tax-exclusive values.

Validate conversions by dimension and effective date. A conversion should have an owner, source, test case, approval, and audit event.

Supplier-cost record

Record supplier, legal entity, quote or agreement reference, item, location, currency, amount, unit, pack, quantity tier, minimum order, and validity.

Add effective date, expiry, freight basis, insurance, duties, tax basis, lead time, availability status, payment term, escalation, source, and approver.

Classify the cost as vendor quote, contract, purchase order, invoice, last purchase, budget, index, estimate, or manual override. Do not present them as equivalent.

Cost selection rule

Define how the engine chooses among current supplier records. State location, quantity, date, currency, validity, freight, availability, and approval precedence.

Block missing and expired costs unless an authorized exception is documented. Show the selected source and effective date in the internal audit view.

Do not claim live supplier pricing without exact first-party documentation and clean-account observation. A scheduled import can still be stale or incomplete.

Define the complete cost stack

Pricing needs a category dictionary. Every amount should belong to one category, one basis, one owner, and one calculation stage.

Direct project costs

Possible categories include modules, inverters, storage, racking, structure, electrical BOS, civil works, service equipment, meters, monitoring, and communications.

Add labour, supervision, design, engineering, permits, testing, commissioning, training, subcontractors, equipment hire, logistics, freight, storage, security, and waste handling.

The exact categories depend on project scope. Do not transfer a residential rooftop template to a commercial, industrial, ground-mount, storage, or hybrid project without review.

Duties, taxes, and transaction costs

Keep customs duty, domestic tax, withholding, payment fees, finance fees, insurance, bank charges, and statutory fees distinct. Each requires its own basis.

Do not call tax a margin or cost recovery. Do not treat refundable, creditable, recoverable, capitalized, or pass-through amounts alike without qualified review.

Indirect and lifecycle categories

Define allocated overhead, acquisition cost if used, project management, warranty reserve, contingency, escalation, spares, replacements, O&M, monitoring, and end-of-term obligations.

Separate contingency from profit. A contingency covers defined uncertainty under an approved method. Margin is a commercial relationship between cost, price, and profit.

State which categories enter the pricing cost base. Avoid hidden exclusions and double counting across item, project, percentage, and fixed rules.

Separate cost, price, markup, and gross margin

Users often use margin and markup as if they mean the same thing. A rules engine must name the formula and denominator.

Publish the formulas

Let approved cost be C, selling price before tax be P, and gross profit be G.

• G = P minus C
• Markup = G divided by C
• Gross margin = G divided by P
• Selling price from a markup rate m = C multiplied by 1 plus m
• Selling price from a target gross-margin rate g = C divided by 1 minus g

The denominator for a target margin cannot equal or exceed one. The engine should block invalid inputs rather than display an undefined result.

Define the cost base

State whether C includes direct equipment, labour, logistics, overhead, contingency, warranty, finance, and lifecycle categories. Document every inclusion and exclusion.

Define how discounts, payment fees, rounding, tax, subsidy scenarios, credits, and customer options affect displayed price and internal profit calculations.

Do not calculate margin on a tax-inclusive price unless the approved policy and accounting review explicitly require that basis.

Rounding and precision

Set currency precision, unit-price precision, intermediate precision, line rounding, subtotal rounding, tax rounding, and final-price rounding.

Test whether line totals sum to displayed subtotals. Prevent hidden residuals, negative lines, duplicated percentages, and order-dependent results.

Govern discounts and commercial overrides

Every discount changes price and may change risk. Define permitted users, method, floor, reason, evidence, approval, duration, and audit.

Discount rule types

Separate line discount, category discount, fixed project discount, percentage discount, promotional rule, channel rule, payment-term adjustment, and negotiated exception.

Define stacking, precedence, exclusions, caps, floor basis, and expiry. Prevent a fixed and percentage rule from applying twice by mistake.

Segregation of duties

The person requesting an exception should not approve it when the policy requires separation. Define sales, manager, finance, administrator, and executive limits.

Log request, old value, new value, reason, evidence, cost base, price effect, formula effect, approver, timestamp, expiry, and issued version.

Require reapproval after cost, BOM, quantity, scope, validity, tax, subsidy, payment, or customer changes. An old approval should not float to a new quote.

Floor controls

Define floor by approved policy and cost base. Decide whether contingency, warranty, overhead, finance, lifecycle, and approved risk are included.

Block silent bypass through manual lines, negative quantities, tax edits, option changes, rounding, duplicated credits, or unpriced substitutions.

This page gives no recommended margin, markup, discount, or floor. The business, transaction, contract, tax, risk, and approvals determine them.

Control the quote lifecycle

The calculation and customer document need one version history. Define draft, internal review, approved, issued, accepted, expired, revised, cancelled, ordered, invoiced, credited, and archived states.

Quote contents

Record customer and legal entity, site, project, scope, assumptions, exclusions, exact items, quantities, units, options, alternates, and customer responsibilities.

Add validity, availability, delivery, installation, commissioning, payment schedule, warranty boundaries, taxes, subsidy scenario, finance scenario, acceptance, and contact route.

Immutable issued versions

Lock an issued version. Preserve its BOM, costs, rules, approvals, customer document, source references, timestamp, and recipient evidence.

Any later change creates a new version. Produce a redline or change summary that explains scope, item, quantity, price, tax, validity, and scenario changes.

Options and alternates

Keep base scope, options, alternates, exclusions, and allowances distinct. Prevent option amounts from entering totals until selected under an approved rule.

If options share costs, define allocation. Avoid presenting mutually exclusive alternatives as one additive total.

Substitutions

Require technical approval before changing equipment or scope. Update exact model, quantity, unit, cost, warranty, lead time, tax basis, availability, and customer wording.

Recalculate affected labour, BOS, logistics, finance, lifecycle, validity, and approvals. Preserve the superseded selection in audit history.

Treat PM Surya Ghar CFA as a separate scenario

Central financial assistance should not reduce the seller’s system price silently. Keep gross quoted price, customer scenario, and authority decision separate.

Official evidence and date

The PM Surya Ghar National Portal is the official customer and scheme-discovery route. Portal status does not prove eligibility or payment.

The PIB Cabinet approval release dated 29 February 2024 records the announced programme and CFA structure at that date.

Use current operative guidelines, portal rules, amendments, and authority decisions for the actual customer. A dated release cannot decide a 2026 case by itself.

Scenario fields

Record official source, retrieval date, scheme, customer type, connection, project location, system capacity, eligible capacity, equipment assumptions, vendor assumptions, and exclusions.

Add status, pending evidence, responsible verifier, refresh date, portal or authority decision, customer contribution, payment route, and uncertainty statement.

Keep any state support or utility process separate. Do not transfer a central scenario across states, customer classes, connections, or project types.

Customer presentation

Show gross system price independently. Label CFA as an estimated qualified scenario, not a seller discount, price reduction, receivable, approval, or guaranteed cash.

Do not imply eligibility, amount, timeline, equipment acceptance, vendor status, inspection, commissioning, bank credit, or disbursement without exact evidence.

The PM Surya Ghar proposal guide owns scheme-specific proposal workflow. This page owns pricing-rule separation.

Keep GST treatment qualified and current

A pricing engine may store a tax rule. It cannot determine that one rate or allocation applies to every solar quote.

Authority and professional review

CBIC publishes official GST goods and services rate tables. Those tables support notification discovery, not complete transaction classification.

Qualified advisers should confirm exact supply, contract, goods, services, bundle, entity, registration, place, time, invoice, consideration, recipient, and input-credit facts.

Record notification or authority source, entry, effective date, amendment status, reviewer, approval, and refresh trigger. Preserve the evidence used for each issued quote.

Do not hard-code one answer

Separate item tax category, service category, freight, discount, subsidy display, finance fee, credit, and invoice treatment. Define whether prices display tax inclusive or exclusive.

Block an unknown or conflicted classification from silently defaulting. Route it to qualified review with a visible quote condition.

Accounting or invoicing should apply the approved statutory treatment. Reconcile the issued quote to the tax invoice and record any authorized difference.

This page publishes no GST rate or input-credit conclusion. The exact current transaction and professional advice control.

Use scenarios without making outcome claims

Scenarios test how rules respond to changes. They do not predict customer acceptance, profit, savings, return, or business performance.

Minimum scenario set

Create a controlled base case from approved BOM, current costs, rules, and assumptions. Add downside, severe-downside, and break cases.

Vary cost expiry, supplier change, currency, quantity, wastage, labour, freight, duties, tax uncertainty, overhead, contingency, payment terms, finance, and lifecycle obligations.

Test discount, delayed order, substitute equipment, design revision, site-scope growth, approval delay, and missing subsidy evidence.

Sensitivity register

For each variable, record base value, alternate values, source, range, unit, owner, effective date, dependency, and affected outputs.

Change one variable for simple sensitivity. Use combined cases for correlated or contractual changes. Label every output hypothetical.

Do not call scenario profit an accounting result. Do not call a customer energy model a saving or return guarantee.

The generation and financial tool handles separate modelling. Its outputs require controlled technical and commercial inputs.

Keep accounting, invoice, and revenue authority separate

Pricing software may issue a quotation reference. Accounting remains authoritative for statutory and financial records.

Accounting boundary

Accounting controls chart of accounts, supplier liabilities, customer receivables, tax invoices, credits, debit notes, payments, refunds, recognized revenue, and financial close.

It also controls approved cost postings, inventory movements, actual labour, overhead policy, warranty provisions, finance costs, and audit evidence as configured.

A quote margin is not realized profit. Actual cost, scope, delivery, credits, taxes, payment, warranty, accounting policy, and period close may differ.

Invoice boundary

Define when an accepted quote may create an order or invoice request. Require legal entity, customer, tax data, scope, amount, schedule, and approval.

Do not let the pricing engine issue statutory records unless that exact function, authority, control, and compliance scope is verified and contracted.

The CRM with Tally guide covers one accounting-handoff decision. It does not prove a pricing integration.

Reconciliation

Reconcile quote version, accepted amount, order, invoice, credit, payment, and close status through immutable identifiers. Define tolerances and exception owners.

Investigate differences by scope, item, quantity, unit, price, discount, tax, subsidy presentation, payment, and timing. Never force records to match by deletion.

Specify integrations as data contracts

A connector label does not explain objects, fields, units, failure behavior, or responsibility. Require exact first-party documentation and clean-account observation.

Integration contract

Record source, destination, direction, object, event, identifier, field, type, unit, precision, timezone, timestamp, frequency, authentication, authorization, and encryption.

Add filter, mapping, transformation, version, ordering, idempotency, duplicate handling, retry, timeout, rate or plan limit, error queue, and replay.

Define owner, monitoring, alert, reconciliation, incident, support, change notice, test environment, rollback, and data-retention duties.

Common failure cases

Test missing project IDs, duplicate customers, deleted items, stale BOMs, unknown units, expired costs, changed tax categories, and unavailable substitutions.

Add authentication expiry, partial batch, out-of-order event, repeated event, timeout after success, provider outage, schema change, and manual correction.

Never assume exactly-once delivery. Use idempotency keys, event logs, reconciliation, and controlled replay where the architecture supports them.

Reconciliation register

Compare source count, destination count, rejected records, duplicates, missing fields, value differences, stale records, retries, and unresolved exceptions.

Set frequency, tolerance, owner, due date, escalation, and closure evidence. An integration is not accepted merely because some records appear.

This page makes no native integration claim for SurgePV or QuickEstimate. Verify each planned route independently.

Protect commercial and customer data

Pricing systems may contain customer identity, site details, supplier costs, negotiated prices, margins, discounts, tax assumptions, approvals, contracts, and payment terms.

Permissions and segregation

Create roles for salesperson, estimator, procurement, technical reviewer, manager, finance, tax reviewer, administrator, auditor, support, and integration service.

Apply least privilege, named accounts, MFA, approval separation, export restrictions, emergency access, periodic review, and immediate offboarding.

Log item, cost, conversion, formula, margin, discount, tax, subsidy, quote, approval, permission, integration, export, and deletion changes.

Privacy and data lifecycle

MeitY’s data-protection framework page provides official legislation and rule discovery. It does not prove vendor compliance.

Document purpose, lawful processing basis, notice, consent where applicable, collection, use, sharing, access, correction, deletion, retention, and grievance processes.

Identify subprocessors, hosting, residency, transfers, support access, analytics, backups, logs, incident response, breach duties, and government-request handling.

Backup and restore

Define backup content, frequency, encryption, retention, immutability, location, access, deletion behavior, recovery point, recovery time, and restore test.

Restore a representative environment during the pilot. Verify objects, rules, costs, approvals, versions, audit, permissions, integrations, and export after recovery.

A backup claim does not prove successful restoration. Record test date, scope, result, defect, corrective action, and retest.

Run a golden-case regression pilot

Build expected results outside the candidate system using approved evidence. Lock the inputs, formulas, outputs, and acceptance tolerances before testing.

Golden cases

Include simple item pricing, pack conversion, multiple suppliers, effective dates, labour drivers, freight, overhead, contingency, markup, target margin, and rounding.

Add discounts, floors, approvals, options, quote validity, revisions, substitutions, tax uncertainty, CFA scenario display, and accounting references.

For each case, list expected item, quantity, unit, selected cost, cost stack, formula, selling price, display, approval, audit, and export.

Invalid and failure cases

Test missing item, missing cost, expired cost, zero cost, negative quantity, invalid conversion, mixed dimensions, stale BOM, unapproved BOM, and duplicate ID.

Add circular formula, invalid margin denominator, unauthorized discount, floor breach, expired approval, tax conflict, unsupported subsidy, and old quote reuse.

Test failed authentication, timeout, duplicate event, out-of-order event, partial import, schema change, retry, dead-letter handling, reconciliation, and controlled replay.

Operational cases

Test user onboarding, role changes, offboarding, item update, rate rollback, approval escalation, customer export, deletion request, backup restore, and archive retrieval.

Create a complete exit export. Verify identifiers, customers, sites, projects, items, costs, rules, quotes, versions, approvals, audit, files, and relationships.

Pilot measures

Measure calculation agreement, blocked-invalid cases, unauthorized-change prevention, approval completion, reconciliation exceptions, restore success, export completeness, and admin effort.

Define numerator, denominator, observation period, exclusions, evidence, and owner for each metric. Do not publish a universal threshold.

Pilot results establish performance only for tested configuration, data, users, routes, and dates. They do not establish conversion, profit, return, saving, or future reliability.

Define reporting without outcome claims

Reports should explain controlled pricing operations. They should not turn quote activity into unsupported profit, conversion, saving, or return statements.

Publish a metric dictionary

For every metric, define name, business question, object, status, numerator, denominator, time basis, timezone, owner, exclusions, and refresh schedule.

Also define currency, tax basis, version rule, accepted date, issued date, cancellation treatment, duplicate treatment, and late-arriving data handling.

A quote count may mean drafts, approved versions, issued documents, unique opportunities, or customer options. Publish the chosen definition and prevent silent changes.

Data-quality reporting

Track missing item sources, expired costs, unknown units, conversion errors, unapproved BOMs, stale rules, invalid formulas, missing approvals, and reconciliation exceptions.

Report exception age, owner, due date, severity, affected quotes, correction, verification, and recurrence. Separate blocked records from issued records.

Use data-quality trends to prioritize correction. Do not claim the software prevented loss unless a controlled measurement supports that conclusion.

Quote-control reporting

Possible measures include quotes by status, versions per opportunity, expired issued quotes, substitution frequency, approval queue, discount exceptions, and overrides.

Add rule version, selected cost age, unresolved tax classifications, unverified CFA scenarios, failed exports, integration errors, retries, and unreconciled downstream records.

Segment by project family, team, location, source system, item category, and rule version only when permissions and sample size support responsible use.

Commercial reporting boundaries

An internal displayed gross-margin percentage is a quote calculation, not accounting profit. Label its cost base, price basis, tax treatment, and excluded actuals.

Do not call an accepted quote recognized revenue. Do not call a proposal customer saving. Do not attribute sales conversion to software without a valid evaluation design.

Reconcile financial reporting to accounting. Preserve report versions, filters, exports, access logs, and definition changes for audit.

Govern configuration and release changes

A pricing engine changes when items, costs, units, formulas, tax classifications, subsidy scenarios, roles, templates, integrations, or reports change.

Change request

Record requester, reason, affected object, old value, new value, evidence, effective date, expiry, dependency, risk, reviewer, approver, and rollback plan.

Classify emergency, regulatory, supplier, commercial, technical, security, integration, and presentation changes. Route each class to the required owners.

Prevent retrospective changes to issued quote calculations. New configuration should apply through a versioned rule set and explicit effective time.

Test and release

Run impacted golden cases and invalid cases before release. Compare expected items, units, costs, prices, approvals, documents, audit, integrations, and reports.

Use a separate controlled test environment when available. Remove or protect production customer and commercial data used for testing.

Record release version, included changes, tests, defects, accepted limitations, approvers, deployment time, monitoring window, and support owner.

Monitor and roll back

Monitor calculation differences, blocked quotes, approval failures, integration errors, unusual overrides, report changes, and support incidents after release.

Define rollback triggers and authority. A rollback must preserve audit history and avoid mixing old rules with quotes created under the new version.

Retest after rollback or correction. Update training, user guidance, data dictionaries, integration contracts, and archive documentation.

Calculate three-year TCO and exit cost

Subscription price is only one cost. Model three years under the planned users, plans, objects, integrations, security, support, and growth assumptions.

TCO register

Include licences, users, plan minimums, usage limits, storage, implementation, configuration, item cleanup, supplier data, migration, integrations, and testing.

Add training, documentation, administration, tax review, security review, support, change control, regression, audit, backup, restore, renewal, and price changes.

Include internal staff and third-party advisers. Classify each amount as quoted, contracted, estimated, assumed, or unknown.

Contract review

Define service scope, plan, users, limits, data ownership, configuration ownership, IP, support, SLA, incident, security, privacy, subprocessors, and audit rights.

Add price changes, renewal, suspension, termination, refund, liability, indemnity, dispute, business continuity, export, retention, deletion, and transition assistance.

Clarify whether templates, rules, item masters, reports, APIs, audit logs, and exports remain accessible after cancellation or downgrade.

Exit acceptance

Require documented export formats, relationships, identifiers, attachments, audit history, configuration, rules, approvals, and data dictionary.

Test the export before purchase and renewal. Price migration, transformation, validation, parallel operation, archive, access revocation, and deletion confirmation.

An export file is not an exit until an authorized replacement can interpret and reconcile it.

Evaluate QuickEstimate under identical gates

Disclosure: SurgePV and QuickEstimate have a commercial relationship. QuickEstimate receives the same object, item, formula, tax, subsidy, integration, security, pilot, cost, contract, export, and exit checks as every provider.

The QuickEstimate pricing-calculator page makes dated first-party claims about admin prices, margin settings, rate updates, and BOS pricing. Test every planned rule.

Its quotation-system page makes broad tax and subsidy automation claims. Those claims do not establish correct treatment for an exact customer or transaction.

The QuickEstimate pricing page lists dated plan and feature claims. Confirm users, object limits, storage, connectors, roles, audit, API, support, tax, renewal, and exit in writing.

Resolve current first-party conflicts

The domain uses QuickEstimate while current product copy uses Quickest Solar CRM. The terms page identifies Heaven Softtech Private Limited as operator.

The privacy page also refers to Tatvamasi Labs. Confirm legal entity, product name, document priority, contracting authority, invoice entity, and data controller.

The security page says encrypted snapshots are retained 30 days. Privacy says deleted data may remain in backups up to 90 days.

Security says customer pipeline data stays in India. Privacy says data is processed and stored in multiple jurisdictions. Resolve scope, subprocessors, residency, transfers, and contract wording.

Pricing uses proposals as a plan limit, while product pages also use quotes and estimates. Confirm which objects count, when counters reset, and how revisions affect limits.

This page gives QuickEstimate no rank. It makes no correctness, tax, subsidy, margin, security, support, integration, conversion, saving, return, or customer-result claim.

The QuickEstimate pricing guide owns plan-price procurement. The QuickEstimate review owns the broader product decision.

Keep adjacent software decisions separate

The solar estimate software guide owns early scope and estimate workflow. This page owns governed commercial price calculation.

The solar proposal feature guide owns persuasive and customer-facing proposal functions. Pricing calculations need separate acceptance.

The commercial proposal guide owns commercial proposal selection. A proposal can present a price without governing its source.

The solar CRM pricing guide owns CRM TCO and plan evaluation. A CRM label does not establish pricing-rule control.

SurgePV remains separate technical design, BOM, generation, financial-model, and proposal software. It is not claimed as a native pricing engine, CRM, accounting system, or QuickEstimate integration.

Frequently asked questions

What is solar pricing calculator software?

It is a controlled commercial rules engine that applies approved item, cost, unit, labour, overhead, contingency, discount, tax-presentation, and scenario rules to an approved scope. It should create versioned quotes without replacing technical design or accounting.

Which quantity input should solar pricing software use?

Use an approved project-specific BOM or scope with immutable identifiers, exact equipment, quantities, units, revision, author, approver, and timestamp. Reject missing, stale, conflicting, or technically unapproved inputs instead of calculating silently.

Should a solar pricing calculator use cost per kW?

A dated cost-per-kW rule may support bounded early screening. An issued quote should use approved quantities, exact items, labour, logistics, duties, taxes, site scope, overhead, contingency, finance, lifecycle obligations, and current source evidence.

What is the difference between markup and gross margin?

Markup equals profit divided by cost. Gross margin equals profit divided by selling price. A calculator must label the formula, percentage basis, included cost base, rounding, discount treatment, tax treatment, and approval floor.

How should PM Surya Ghar subsidy appear in pricing software?

Show central financial assistance only as a separate dated and qualified scenario. Record official source, customer and system assumptions, exclusions, verifier, refresh date, and authority decision. Never subtract it as guaranteed cash or price.

Can solar pricing software apply one GST rate to every quote?

No universal rate should be assumed. Classification and treatment depend on current law and exact supply, contract, entity, place, date, invoice, and input-credit facts. Use current official evidence and qualified professional review.

Can pricing calculator software replace accounting or invoicing?

No. Pricing software can create controlled commercial calculations and issued quote references. Accounting remains authoritative for ledgers, tax invoices, credits, payments, recognized revenue, statutory records, reconciliation, and financial close.

How should QuickEstimate be evaluated for solar pricing?

Treat its pages as related-party first-party evidence. Apply identical object, item, formula, subsidy, tax, workflow, integration, security, pilot, cost, contract, export, and exit gates. Resolve current identity, retention, residency, and product-claim conflicts.

What should a solar pricing software pilot test?

Use golden approved cases with stale costs, missing items, unit conflicts, discounts, approvals, substitutions, revisions, tax uncertainty, and subsidy scenarios. Also test duplicates, failed integrations, retries, reconciliation, export, restore, and exit. Compare every result with expected evidence.