Best Solar Design Software India 2026: MNRE-Compliant Tools Reviewed

India added over 24 GW of solar in 2024–25 — the fastest single-year capacity addition in the country’s history. SECI tender pipelines stretch into the gigawatt range. PM Surya Ghar is pushing residential rooftop demand into millions of households. And DISCOM interconnection queues are running longer than ever across states like Maharashtra, Karnataka, and Tamil Nadu.

In this environment, solar design software is no longer a productivity tool for Indian EPCs — it is a competitive requirement. Teams that design faster, simulate more accurately, and submit complete MNRE-compliant documentation on the first pass win projects. Teams still relying on disconnected spreadsheets, AutoCAD layouts, and manual DISCOM paperwork lose them to faster competitors.

This guide covers every dimension of the India solar design software decision in 2026: MNRE and CEA compliance requirements, DISCOM interconnection documentation, PM Surya Ghar residential automation, utility-scale simulation for 100 MW+ SECI projects, and an honest evaluation of every major platform available to Indian EPCs today.

In this guide:

• What MNRE norms, CEA regulations, and DISCOM standards demand from design tools
• Latest India solar market updates for 2026 — PM Surya Ghar Phase 2, SECI tenders, BIS updates
• Best solar design software for India 2026 — full platform comparison table
• Deep dive: SurgePV for Indian installers across residential, commercial, and utility segments
• PVSyst, Aurora Solar, and Helioscope: where they fit and where they fall short
• Small vs. large installer: which software fits your operation
• ROI: time saved on MNRE documentation across project types
• FAQ

Latest Updates: India Solar Market 2026

India’s solar market moved fast in 2025–2026. Several regulatory and scheme changes directly affect what solar software must handle. Here is the current status as of March 2026.

Key Market Trends Shaping Indian Solar Design Workflows

PM Surya Ghar is driving residential volume at unprecedented scale. The scheme targets 10 million households. With DISCOM applications now processed digitally, active installers are handling 50–200 residential design requests per month. Solar software that automates the repeat steps — roof modeling, string sizing, subsidy calculation, proposal generation — is the only way to run this volume without proportional headcount growth.

Utility-scale design complexity is increasing. SECI Tranche XIII and XIV specifications include mandatory bifacial gain modeling, single-axis tracker simulations, and monthly soiling loss disaggregation. Design software must produce simulation reports that pass independent engineer (IE) review for project financing — the bar is higher than it was three years ago.

Commercial rooftop is the fastest-growing revenue segment. The C&I segment (50 kW to 2 MW) on industrial warehouses and commercial buildings requires accurate irradiance modeling on complex roof structures with HVAC equipment, cooling towers, and water tanks creating non-trivial shading constraints. Generic tools that assume flat roofs produce yield estimates that do not survive DISCOM scrutiny.

Module prices have bottomed — design accuracy now determines project economics. With module costs no longer falling steeply, project margins are determined by design quality: accurate yield simulations, optimized string configurations, and proposals that correctly capture the financial value of the system for the client.

India-Specific Requirements for Solar Design Software

The Indian solar market has regulatory, climatic, and commercial characteristics that make generic, US-focused design tools inadequate. Before evaluating any platform, understand what India-ready solar design software must handle.

MNRE Norms and BIS Standards

The Ministry of New and Renewable Energy (MNRE) sets technical standards for grid-connected rooftop PV under the Rooftop Solar Programme. Every Indian EPC’s design tools must account for:

• BIS IS 14286 — specification for crystalline silicon solar modules approved for Indian conditions
• BIS IS 16169 — system performance criteria, updated September 2025
• MNRE technical standards for grid connectivity — inverter protection settings, anti-islanding, power factor requirements
• CEA (Measures Relating to Safety and Electric Supply) Regulations — earthing, protection relays, and metering requirements for systems above 10 kW
• BIS IS 13947 — standards for switchgear used in solar AC distribution boards

Software that does not maintain India-specific equipment libraries aligned with BIS certification leaves the installer responsible for manually verifying every component against the current MNRE-approved products list — a significant compliance and liability exposure on every project.

CEA Regulations

The Central Electricity Authority regulates technical standards for grid connection, metering, and protection for all solar installations above certain thresholds.

For systems above 10 kW: CEA requires a dedicated energy meter, protection relay settings compliant with the distribution utility’s grid code, and a signed synchronization agreement with the DISCOM. Design reports must include single-line diagrams, equipment specifications, and protection coordination documentation.

For commercial and utility scale: CEA 2020 regulations mandate reactive power capability, voltage ride-through, and frequency response settings documented in every design submission. Software that auto-generates compliant SLDs and protection relay setting tables eliminates 2–4 hours of engineering work per commercial project.

DISCOM Interconnection Standards

India has over 50 major DISCOMs, each with different net-metering procedures, technical interconnection requirements, and application formats. Any solar design software used by Indian EPCs must carry current data for at least the major utilities:

Design software that pre-loads DISCOM-specific documentation templates and interconnection parameters eliminates a significant manual workflow step on every project. The productivity gain compounds fast at volume.

Single-Line Diagram Standards

Indian DISCOMs require SLDs to include specific elements that differ from US or European standards:

• Isolation switch between solar array and inverter (per CEA regulation)
• AC isolator with correct fault current rating for the grid connection point
• Energy meter (bidirectional) with approved meter make per DISCOM standard
• Anti-islanding protection relay with settings per DISCOM grid code
• Earth fault protection and surge protection coordination diagram

Software that generates SLDs from the completed design — with all required components auto-populated — rather than requiring a separate CAD drawing exercise is a material time saving for every project above 10 kW.

Best Solar Design Software for India 2026: Comparison Table

When to Use Each Platform

Use SurgePV when:

• Designing residential solar under PM Surya Ghar at any volume above 5 projects per month
• Managing commercial rooftop (C&I) projects requiring DISCOM documentation
• Running a sales team that needs to generate proposals independently, without waiting for a separate design team
• Scaling from 20 to 200+ designs per month without proportional headcount growth
• Working across residential, commercial, and utility segments in a single platform

Use PVSyst when:

• Preparing bankable yield reports for SECI or state nodal agency tender submissions
• Serving as an independent engineer reviewing utility-scale projects
• Producing project finance documentation requiring lender-acceptable simulation standards

Use SurgePV and PVSyst together when:

• Developing utility-scale projects requiring both efficient design workflow (SurgePV) and bankable simulation reports (PVSyst)
• The combined workflow typically runs faster than PVSyst-only design while meeting all project documentation requirements

Deep Dive: SurgePV for Indian Installers

SurgePV is the purpose-built solar design software for Indian EPCs, installers, and solar developers. Rather than adapting a US or European platform for India, SurgePV was built from the ground up around Indian regulatory requirements, Indian building typologies, Indian DISCOM structures, and the commercial economics of the Indian solar market.

Clara AI — India-Trained Roof Detection

SurgePV’s Clara AI performs roof detection and panel placement optimized for Indian building typologies. The AI is trained on residential buildings across Mumbai, Delhi, Bengaluru, Chennai, Hyderabad, Ahmedabad, and 50+ Tier 2 and Tier 3 Indian cities — covering the full range from urban high-rises to industrial warehouses to rural residential construction.

What Clara AI handles that generic tools miss:

• Flat-roof detection for industrial buildings — the predominant commercial rooftop type in India, where sawtooth and north-light truss profiles are common
• Parapet wall recognition and edge setback — MNRE guidelines require minimum edge setbacks that Clara AI applies automatically
• Water tank and HVAC obstruction identification — critical for Indian residential rooftops where OHTs and AC units are standard
• Multi-source imagery fallback — Clara AI uses Google, Esri, and Bing imagery layers and switches automatically when one source has cloud cover for a specific Indian location

A rooftop in Surat or a warehouse roof in Pune that would take 45 minutes of manual CAD work converts to a design-ready layout in under 2 minutes with Clara AI.

Indian Irradiance Data — IMD-Calibrated TMY

India spans five distinct climate zones with dramatically different irradiance profiles. Design software that applies a generic “India” irradiance profile across all locations will produce yield estimates that are accurate only for some mid-range composite climate city — and wrong for the majority of actual project locations.

For Jodhpur (2,100 kWh/m²/yr) versus Kochi (1,500 kWh/m²/yr), the simulated yield difference for an identical 10 kW system exceeds 35%. Software that does not model this correctly is producing inaccurate financial proposals.

SurgePV’s TMY profiles cover 200+ Indian locations calibrated against IMD ground station records. Yield accuracy falls in the ±4–7% range for standard rooftop projects — sufficient for DISCOM applications, commercial proposals, and residential PM Surya Ghar documentation.

DISCOM Documentation Automation

The most time-consuming administrative task for any Indian EPC is preparing DISCOM interconnection documentation. SurgePV’s solar proposal software auto-generates the complete documentation set from the finished design:

1. Single-line diagram with protection relay specifications per CEA guidelines
2. Technical feasibility report in the DISCOM’s required format
3. Load calculation and proposed system capacity declaration
4. Net-metering agreement supporting documents
5. CEA compliance certificate (for systems above 10 kW)
6. BOM with BIS-certified equipment and pricing

What takes an engineer 4–6 hours to produce manually — across CAD, Word, and Excel — is ready in under 20 minutes from SurgePV’s completed design.

PM Surya Ghar Workflow Automation

SurgePV’s PM Surya Ghar workflow compresses the design-to-application cycle from 3–4 hours per installation to under 30 minutes:

1. Address input and satellite roof detection — Clara AI identifies roof area, orientation, and obstructions within 90 seconds
2. System sizing — software recommends optimal system size based on monthly consumption, validated against scheme eligibility limits
3. Subsidy calculation — MNRE central subsidy rates automatically applied (Rs 30,000/kW for first 2 kW; Rs 18,000/kW for 3rd kW), plus state top-up if configured for the project location
4. Proposal generation — consumer proposal with system yield, bill savings, subsidy-adjusted payback period, and scheme eligibility certificate
5. DISCOM documentation — technical report and SLD in DISCOM-required format, ready for portal submission
6. BOM generation — BIS-certified equipment list with pricing, auto-linked from the design

For a team completing 50 PM Surya Ghar installations per month, this automation typically saves 100–150 staff hours per month compared to manual workflows — the equivalent of one full-time employee’s productive working time.

State-Level PM Surya Ghar Top-Up Schemes

Multiple states have added subsidies on top of the central scheme. SurgePV tracks and automatically applies current state-level values:

String Sizing and Inverter Compatibility

Indian installers work with a mix of international and domestically manufactured inverters. SurgePV’s string sizing engine validates:

• Voltage operating range for Indian string configurations (module count per string is often constrained by 415V LT grid limits in residential applications)
• Indian inverter brands — Sungrow, Fronius, SMA, Delta, ABB (Fimer), Luminous, and Vikram Solar OEM partners
• Temperature coefficient validation — critical for hot-dry zone installations where cell temperatures regularly exceed 65°C
• Overvoltage protection — string voltage must not exceed inverter MPPT range under Rajasthan/Gujarat winter open-circuit conditions

Automated string sizing that validates all these constraints simultaneously eliminates a significant manual verification step that experienced engineers currently perform project by project.

Commercial C&I Features

For the C&I segment (50 kW to 2 MW), SurgePV includes:

• 3D industrial roof modeling — multi-span warehouse roofs, skylight clearances, obstruction mapping from satellite imagery
• ToD tariff integration — all major state utility time-of-day tariff schedules preloaded, with hourly generation-vs-consumption matching
• RESCO financial modeling — IRR calculation for third-party owned systems with PPA structures in INR
• Demand charge modeling — peak demand reduction calculation integrated with the system design
• Open access feasibility — state-level open access regulations and charges preloaded for modeling
• Solar shadow analysis software — 3D shading simulation for complex C&I structures with existing obstructions

Other Tools Used in India

PVSyst — Industry Standard for Utility-Scale Bankable Reports

PVSyst is the global benchmark for utility-scale solar simulation. Its acceptance among Indian project lenders, SECI, and independent engineers makes it non-negotiable for any project seeking institutional financing.

Strengths for India:

• Widely accepted by SECI, state nodal agencies, and project finance IEs for bankable yield reports
• Detailed loss factor modeling: soiling, DC/AC mismatch, temperature, shading, degradation
• Bifacial gain modeling for SAT systems — now required in SECI Tranche XIV specifications
• Meteonorm and NASA POWER integration for any Indian location
• P50/P90 probabilistic yield analysis per IEC 61724 methodology

Limitations:

• Desktop software only — no cloud collaboration, multi-user access is complex
• No Indian proposal generation: financial output is simulation-only
• No DISCOM interconnection documentation
• No PM Surya Ghar workflow
• Steep learning curve; requires engineer-level expertise to run correctly
• License cost (approximately Rs 2,00,000+) is prohibitive for smaller EPCs

Best for: Large-scale project developers, independent engineers, and lenders requiring bankable simulation reports for SECI tenders and project financing. Not suitable as a standalone tool for residential or commercial rooftop installers.

Aurora Solar — Technically Strong, India-Irrelevant

Aurora Solar is a sophisticated design platform built primarily for the US residential and commercial market. Its simulation engine and proposal automation are well-regarded, but the platform has fundamental gaps for Indian use.

Limitations for India:

• US-centric policy and tariff databases — Indian DISCOMs not covered
• No MNRE compliance features or BIS equipment library
• No PM Surya Ghar workflow
• Premium pricing (Rs 2,50,000+ annually) difficult to justify given India-specific data gaps
• Customer support not calibrated for Indian regulatory context

Best for: Indian EPCs with international project portfolios who need a single platform across US and India projects, and whose Indian work does not require DISCOM documentation automation.

Helioscope — Fast Interface, Shallow India Support

Helioscope offers a clean, fast web-based design experience that works well for US commercial installers. Its India application is limited by the same data and compliance gaps as Aurora.

Strengths:

• Fast, clean interface for basic rooftop layouts
• Automated stringing and inverter matching for standard configurations
• Reliable for simple commercial designs where compliance documentation is handled separately

Limitations for India:

• No DISCOM documentation templates
• No MNRE compliance features
• Generic global irradiance data — not IMD-calibrated
• No INR financial modeling or Indian tariff libraries

Best for: Quick roof-layout iterations for simple rooftop projects where an engineer handles all compliance documentation separately. Not a complete solution for any Indian EPC managing DISCOM applications in-house.

Excel and Manual CAD — Still Used, Always a Liability

A substantial share of Indian EPCs still use Excel for financial modeling and AutoCAD for layouts. The zero software cost is the only genuine advantage:

• Shading losses are not accurately modeled — leads to yield overestimation and client disputes
• No automated compliance checking — DISCOM rejections add 2–4 weeks to project timelines
• No integrated proposal generation — every proposal is a manual production exercise
• No cloud collaboration — version control failures across design and sales teams compound at scale
• No PM Surya Ghar automation — every application requires a full manual documentation build

The financial case for upgrading to purpose-built solar design software is clear. One avoided DISCOM rejection or one avoided yield dispute typically covers annual software costs. At 20+ projects per month, the labor cost of manual documentation dwarfs the cost of any commercial software subscription.

Small vs. Large Installer: Which Software Fits?

The right solar design software depends on your operation size, project mix, and the degree to which documentation burden limits your throughput.

Small Installers (1–20 Projects Per Month)

Primary challenge: Every project requires significant time on documentation. Design and compliance work takes proportionally as long as for large teams, with no dedicated engineering support.

What matters most:

• Speed of design from address to completed layout — Clara AI’s 2-minute roof detection is the most relevant feature
• Automated DISCOM documentation — eliminating 3–5 hours per project frees the owner-operator for customer work
• Proposal quality — a professional, branded proposal with correct subsidy calculations and bill savings numbers directly affects close rates

Best fit: SurgePV’s residential and small commercial workflow, including PM Surya Ghar templates. The learning curve is low; a single installer can run the full workflow independently.

What to avoid: PVSyst (overkill and costly for this segment), Aurora Solar (India data gaps), Helioscope (no compliance automation).

Mid-Size EPCs (20–100 Projects Per Month)

Primary challenge: Documentation and proposal production is the bottleneck. Design staff time is consumed by DISCOM paperwork rather than design quality. Sales team waits for design team to produce proposals.

What matters most:

• Multi-user cloud collaboration — design, sales, and project management teams need to access the same project data simultaneously
• Sales team self-sufficiency — proposals should be generated by sales reps from completed designs, without waiting for engineering
• Mixed project type handling — residential PM Surya Ghar, commercial C&I, and small utility in one platform

Best fit: SurgePV with team accounts. The productivity gains from proposal automation and DISCOM documentation scale directly with project volume.

Supplemental tool: PVSyst for any utility-scale projects that require bankable reports.

Large EPCs and Project Developers (100+ Projects Per Month / Multi-MW Pipeline)

Primary challenge: Utility-scale simulation accuracy, multi-state portfolio management, and investor-grade documentation requirements alongside high-volume residential and commercial work.

What matters most:

• Utility simulation accuracy — P50/P90 reports that pass IE review
• Multi-state DISCOM management — design teams working across Gujarat, Maharashtra, Karnataka simultaneously
• Integration with project management and CRM systems
• Bankable documentation for project financing

Best fit: SurgePV for residential, commercial, and design workflow. PVSyst for bankable utility-scale simulation reports. The combined workflow handles the full project portfolio without gaps.

Utility-Scale Solar Design Software for India

India’s utility-scale solar pipeline is the world’s most active. SECI, NTPC Renewable Energy, and state nodal agencies are tendering GW-scale projects on timelines that require fast, accurate simulation.

What 100 MW+ Projects Require

Site feasibility assessment:

• Terrain modeling from SRTM or LiDAR data — critical for hilly sites in Rajasthan, Karnataka, and Tamil Nadu
• Shadow analysis from surrounding terrain features
• Proximity to 220 kV/400 kV substation — transmission loss and interconnection cost modeling
• Land use classification validation (wastelands, government land, private agricultural land — each with different approval processes)

System layout and electrical design:

• Row spacing optimization — fixed-tilt versus single-axis tracker (SAT) versus dual-axis tracker
• DC/AC ratio optimization (typically 1.2–1.35 for Indian utility projects)
• Inverter selection — central versus string versus hybrid configurations
• Underground DC cable routing with voltage drop calculation
• MV collection network design (33 kV is standard for Indian utility projects)

Yield simulation requirements:

• Bifacial gain modeling for SAT systems — increasingly standard in SECI specifications
• Monthly soiling loss disaggregation (critical for Rajasthan and Gujarat)
• DC/AC mismatch and degradation modeling over 25-year project life
• P50/P90 yield analysis for bankable reports
• Temperature-based performance ratio calculation

Key design considerations specific to India:

Tracker vs. fixed-tilt economics. Single-axis trackers add approximately Rs 8–12 lakh/MW in CAPEX (2026 pricing) but increase yield by 18–25% in western India. At current SECI tariff levels, tracker IRR is typically superior for projects above 50 MW in high-irradiance zones. Software must model both scenarios with accurate India-specific cost inputs.

Soiling loss in Rajasthan. Annual soiling losses in the Thar Desert can reach 8–15% without cleaning, versus 2–4% in coastal Karnataka. Software that applies a standard 3% annual soiling factor to Rajasthan projects will produce materially optimistic P50 yields — a problem that shows up in IE review and creates liability for the project developer.

Bifacial gain uncertainty. Accurately modeling bifacial gain requires ground albedo data for the specific site. Red soil in Rajasthan produces different albedo than black cotton soil in Maharashtra. Software must allow site-specific albedo inputs rather than applying a global default.

ROI: Time Saved on MNRE Documentation

The clearest financial argument for solar design software in India is not simulation accuracy — it is documentation time. Here is a realistic breakdown of where manual hours go on Indian solar projects, and what automated software eliminates.

Time Audit: Manual vs. SurgePV Workflow

Residential Rooftop (2–5 kW, PM Surya Ghar)

At 50 residential applications per month, SurgePV saves approximately 240–350 staff hours per month compared to a fully manual workflow. At an all-in staff cost of Rs 300 per hour, that is Rs 72,000–1,05,000 in monthly labor savings — typically more than SurgePV’s annual subscription cost in a single month.

Commercial Rooftop (50 kW–500 kW, C&I)

For a team running 10 commercial projects per month, SurgePV frees 140–225 engineering hours per month. That is the difference between a 3-person design team running at capacity and a 3-person team comfortably handling 25 commercial projects per month.

Documentation Error Cost

Beyond time, DISCOM rejection rates for manually prepared documentation run 20–40% in states with strict format requirements (Maharashtra, Karnataka, Tamil Nadu). Each rejection adds 2–4 weeks to the project timeline and requires re-preparation of the full documentation set.

At a conservative 25% rejection rate on 10 commercial projects per month, a team is spending 2–4 weeks of rework time every month on avoidable rejections. SurgePV’s format-compliant auto-generated documentation runs rejection rates below 5% for format-related issues.

Bankable Report Cost Savings for Utility Projects

For utility-scale developers, the documentation ROI argument is different. The value is not in staff hour savings — it is in faster project milestone completion, reduced IE review cycles, and avoided financing delays.

A utility-scale project that delivers a complete, accurate simulation package to the lender’s IE on the first submission versus requiring two rounds of correction can save 4–8 weeks on the project finance timeline. At a project IRR of 12–14%, 8 weeks of delayed drawdown on a Rs 200 crore project carries a real cost of Rs 3.5–5 crore. That is the financial context for software investment at the utility scale.

How to Evaluate Solar Design Software Before Committing

The India Compliance Test

Before signing any software contract, run this three-question compliance test:

1. Can the software generate a DISCOM-ready interconnection application for MSEDCL or BESCOM without any manual document production? If not, your team is handling that work manually on every project.

2. Does the software carry India-specific irradiance data for at least 50 IMD locations with city-level TMY profiles? If it offers only a global dataset, your yield simulations for Tier 2 cities will be interpolated approximations with significant error margins.

3. Can it produce a PM Surya Ghar-eligible proposal — including subsidy calculation and DISCOM application — from a completed design in under 30 minutes? If not, you cannot profitably participate in the scheme at volume.

SurgePV passes all three tests. Most international platforms fail all three.

The India Financial Model Test

Run a test project: a 100 kW commercial rooftop in Pune for a MSEDCL HT customer on time-of-day tariffs.

Check whether the software:

• Uses the correct MSEDCL HT tariff structure (not a generic Maharashtra residential rate)
• Models ToD generation versus consumption matching by hour of day
• Calculates demand charge reduction from the solar system
• Generates a financial model in INR with accelerated depreciation benefit (80% in first year for commercial assets in India)
• Produces an MSEDCL technical report in the correct submission format

If the software cannot complete this test project accurately, it will not serve your commercial clients well.

Pilot Project Recommendation

Request a 30-day trial on a real project — not a vendor demo environment. Import an actual project address, run the full design workflow including DISCOM documentation, and generate a complete proposal. The gap between a polished software demo and a real-project pilot reveals integration gaps that are not visible in presentations. Specifically test: irradiance data quality for your primary state, DISCOM template accuracy for your main utility, and proposal generation time from completed design.

FAQ

What is the best solar design software for India in 2026?

SurgePV is the best solar design software for India in 2026 for EPCs needing MNRE compliance, DISCOM interconnection documentation, Indian irradiance simulation, and integrated proposal generation. It combines AI roof modeling with 8760-hour simulation, regional tariff libraries, and PM Surya Ghar-ready proposal templates — all purpose-built for the Indian market. For utility-scale bankable reports, PVSyst is the industry standard accepted by SECI and project finance institutions.

Does solar design software need to be MNRE compliant in India?

Yes. MNRE sets technical standards for grid-connected rooftop PV under the Rooftop Solar Programme, and DISCOMs enforce these standards before approving net-metering connections. Software that does not include BIS-certified equipment libraries, CEA-compliant SLD formats, and DISCOM-specific documentation templates creates compliance and liability risk on every project. MNRE compliance is not optional — it is the baseline for operating professionally in the Indian market.

Which solar design software supports MNRE and CEA regulations in India?

SurgePV supports MNRE technical standards and CEA regulations through built-in compliance checks, BIS-aligned equipment libraries, and report formats structured per national grid connection guidelines. It incorporates DISCOM net-metering rules for major state utilities including MSEDCL, TPDDL, BESCOM, CESC, and TNEB. The solar shadow analysis software module meets CEA documentation requirements for shading analysis on systems above 10 kW.

What solar design software is used for utility-scale projects in India?

For utility-scale solar design in India, PVSyst is widely used for bankable yield reports on SECI and state nodal agency tenders. SurgePV’s utility module handles 100 MW+ projects with terrain-based layout, DC/AC ratio optimization, and SECI-compatible loss factor reporting. The most efficient workflow for large developers combines SurgePV for design and layout with PVSyst for final bankable simulation output.

Is there solar design software specifically for the PM Surya Ghar scheme?

SurgePV includes PM Surya Ghar-ready proposal templates that automatically populate central subsidy values (up to Rs 78,000 for 3 kW systems), DISCOM net-metering application format, and all technical documentation required for scheme registration. This reduces the per-application workflow from 3–4 hours to under 30 minutes — essential for installers running 50+ applications per month under the scheme.

How does solar design software handle Indian irradiance and climate zone data?

Professional solar design software for India uses TMY (Typical Meteorological Year) data calibrated against IMD and NASA POWER datasets for Indian locations. It models all five climate zones (hot-dry, warm-humid, composite, temperate, cold), applies monthly soiling loss factors for desert regions, and accounts for monsoon irradiance reduction in coastal states. SurgePV’s irradiance database covers 200+ Indian locations with IMD-calibrated TMY profiles, delivering yield accuracy in the ±4–7% range for standard rooftop projects.

What is the difference between solar design software and solar plant design software?

Solar design software handles rooftop and small commercial PV systems (1 kW to 2 MW) with AI roof modeling, shading analysis, string sizing, and proposal generation. Solar plant design software covers utility-scale ground-mounted projects (5 MW to 500 MW+) with terrain modeling, tracker optimization, grid interconnection design, and bankable yield assessment. SurgePV spans both segments; PVSyst specializes in the utility-scale simulation layer required for project financing.

Which solar proposal software is best for Indian solar sales teams?

SurgePV’s solar proposal software is purpose-built for Indian solar sales teams — with regional tariff libraries for all major DISCOMs, automated CAPEX/OPEX models in INR, subsidy calculation for PM Surya Ghar and state schemes, and white-label branding. Clara AI accelerates the workflow further by converting a rooftop address into a design-ready layout before the sales rep has finished the site visit. Proposals are generated in minutes from the completed design, eliminating manual data re-entry across the sales cycle.