Project Name
Actual Target Capacity (kWp)
Structure Type
Est. Cost / Watt Rs 0.00 / Wp

01. Site Survey & Project Definition

User Inputs for Plant Capacity, Structure Type, and Site Survey Report Upload

Project Primary Parameters
REQUIRED USER INPUTS
Structure-Specific Site Survey Checklist
AUTO-ADAPTED
CategoryChecklist ItemDetails / Observations

02. Estimate Total Energy Generation

Annual kWh Yield Simulation, PR %, CUF %, and Carbon Offset Estimate

Annual Generation
143,700 kWh
Capacity Factor (CUF)
16.40 %
Specific Yield
1,437 kWh/kWp
CO2 Saved
118 Tons/yr
Monthly Energy Generation Yield (kWh)
12 MONTH SIMULATION
JanFebMarAprMayJunJulAugSepOctNovDecTotal

03. Equipment Selection & Inverter Sizing Optimizer

Select from 118 Ingested PV Module Datasheets and 36 Inverter Models with Configurable Inverter Quantity

PV Module (Wp)
118 INGESTED MODELS
Inverter (kW) & Quantity
USER CONFIGURABLE
Transformer (kVA)
GRID TIE
• Type: Oil Cooled Outdoor ONAN
• Vector Group: Dyn11
• Impedance: 4.5%

04. String Conf & MPPT Distrubution

Optimum String Sizing, Temperature-Corrected Operating Windows & Inverter MPPT Channel Distribution

Temperature & String Sizing Parameters
INPUTS & COUPLING
Temperature-Corrected String Limits
IEC 62548 / NEC 690
Maximum String Size (Voc @ Min Temp)
26 Modules
Minimum String Size (Vmp @ Max Temp)
14 Modules
Recommended String Size
23 Modules / String
String Voltage at STC (Vmp)
961.4 V
Overall Plant String Architecture & Inverter Sizing Matrix
AUTO-CALCULATED
Total Modules in Plant
184 Nos
Total Strings in Plant
8 Strings
Strings per Inverter
8 Strings / Inv
Plant DC Capacity / Overload
100.3 kWp (25.4%)
Inverter MPPT Channel Distribution & Loading Configuration
PER INVERTER MULTI-MPPT CHANNELS

Detailed distribution of PV strings across each individual MPPT input tracker for the selected inverter model:

MPPT Tracker Connected Strings Total Modules DC Power (kWp) Vmp Operating Window (50°C - STC) Max Voc (Cold Temp) Rated Current Imp (A) Max Fault Current Isc (A) MPPT Status & Voltage Check

05. PVSYST Simulation Summary Report

System Loss Diagram Tree and Executive Performance Metrics

PVSYST System Loss Diagram
PVSYST V7.4
Loss CategoryPercentage LossDescription
Global Nominal Irradiance100.0 %1,850 kWh/m² Horizontal Irradiance
Thermal Loss Factor-5.2 %Temperature Coeff -0.35%/°C @ 50°C
Ohmic Wiring Loss (DC/AC)-1.2 %Cable Sizing Vd < 1.5%
Module Quality & Mismatch-1.5 %Factory Sorting Mismatch
Inverter Efficiency Loss-1.3 %Inverter Peak Efficiency 98.7-99.0%
Net Performance Ratio (PR)78.5 %Final System Yield Delivered to Grid

06. DC & AC Cable Calculation Engine

Rules: DCDB Out Current = Module Imp × Modules/String | ACDB In Current = Inverter AC Current | ACDB Out Current = Inverter AC Current × Number of Inverters

1. DC Cable (Panel String to DCDB Input)
STRING LEAD FEEDER
2. DC Cable (DCDB Output to Inverter MPPT)
DCDB OUTPUT MAIN FEEDER
3A. AC Cable (Inverter AC Output to ACDB Input)
ACDB INPUT FEEDER
3B. AC Cable (ACDB Main Output to LT Panel)
ACDB MAIN OUTPUT FEEDER

07. DCDB & ACDB Distribution Box Configuration

Electrical Protection Devices, Fuses, SPDs, MCCBs & Busbar Dimensioning

DCDB Configuration
DC SIDE
ACDB Configuration
AC SIDE

08. PV Module & Inverter Single Line Diagram (SLD)

Interactive Schematic Diagram from PV Strings to Inverter DC Inputs

09. LT Line & HT Line Single Line Diagram (SLD)

AC Evacuation Schematic with 33kV/11kV VCB, IDT Transformer & Ingested ANSI Relays

10. Earthing & Grounding Line Diagram

Compliance with IS 3043:1987, IS 2309:1989 & IEC 62305-1:2024

Earth Grid Calculation
IS 3043
Lightning Protection (LPS)
IEC 62305

11. Bill of Materials

Itemized Bill of Materials with Custom Categories, Editable Quantities, Rates & Live Commercial Totals

Subtotal Cost
Rs 0
GST (18%)
Rs 0
Total Cost per Watt
Rs 0.00 / Wp
Bill of Materials (BOM Master) - Click Rate or Quantity to Edit
EDITABLE RATES & CUSTOM CATEGORIES
#CategoryDescriptionQtyUnitRate (Rs / Unit)Total (Rs)ScopeAction

12. Mounting Structure & Section Selection

Structural Profiles, Section Dimensions, Member Weights & Live Material Weight Optimization

MMS Type Selection
USER SELECTED
Ingested Material Specification
ALUMINIUM 6063-T6
Ingested Member Dimensions & Section Breakdown - Click Any Value to Edit
EDITABLE MEMBERS ENABLED
# Part Name Section Profile & Dimension Material Grade Length (mm) Wt / pc (kg) Qty (Nos) Total Weight (kg) Action

13. STAAD Structural Wind Load Analysis

Calculation of Wind Pressure & Structural Stability as per IS 875 Part 3

Wind Parameters
IS 875 PART 3
STAAD Structural Analysis Result
STAAD PRO

14. 3D Site & Shadow Simulation Visualizer

Three.js WebGL Interactive 3D Render with Sun Position Slider

12:00 PM

15. Detailed Project Report (DPR) & Comprehensive Engineering Document

Unified Technical Dossier Combining All Site Inputs, Equipment Datasheets, Sizing Calculations, SLDs & Commercial BOM

NVS-D Logo
NVS-D LLP

DETAILED PROJECT REPORT (DPR)

GRID-CONNECTED SOLAR PHOTOVOLTAIC POWER PLANT ENGINEERING DESIGN
ENGINEERING REPORT
ISO 9001 / IEC / CEA COMPLIANT
PROJECT NAME-
CLIENT / CUSTOMER-
SITE LOCATION-
REPORT GENERATION DATE2026-08-17
DC Plant Capacity100.0 kWp
Inverter AC Capacity80.0 kW
Inverter Units & Overload1 Units (25% Overload)
Total PV Modules184 Nos (545Wp)
Structure MountingShed Mini Rail
Estimated Annual Yield154,000 kWh
Project Total CostRs 3,450,000
Total Cost / WattRs 34.50 / Wp
1. Site Survey, Geography & Meteorological Parameters
2. Equipment Selection & Inverter Sizing Matrix
Selected PV Module Datasheet (STC)
Selected Inverter & MPPT Optimization
3. String Configuration & Inverter Multi-MPPT Channel Distribution Matrix
MPPT Tracker Connected Strings Total Modules DC Power (kWp) Vmp Operating Window (50°C - STC) Max Voc (Cold Temp) Rated Imp (A) Fault Isc (A) MPPT Status
4. DC & AC Electrical Cable Sizing Engineering Schedule
Cabling Feeder SectionCalculated Current (Imp/Iac)Max Fault Current (1.25x)Selected Cable SpecificationVoltage Drop (%)Standard Compliance
5. DCDB & ACDB Distribution Boards & Protection Switchgear
6. PVSYST Simulation, Monthly Balances & Loss Diagram
Parameter / Loss StepReference ValueLoss Fraction / FactorEngineering Description
7. Mounting Structure Specifications, Section Breakdown & STAAD Wind Analysis
8. Earthing System & ESE Lightning Protection Design
9. Electrical Single Line Diagrams (CAD SLD Drawings)
9.1 DC Electrical Single Line Diagram (PV Strings to Inverter MPPTs)
DC SLD Drawing
9.2 AC Power Evacuation SLD (IDT Step-Up Trafo, 33kV/11kV VCB Switchgear Panel & ANSI Relays)
AC SLD Drawing
9.3 Earthing Grid & ESE Lightning Protection Layout (IS 3043 / IEC 62305)
Earthing SLD Drawing
10. Master Bill of Materials (BOM) & Total Commercial Cost Breakdown
#CategoryDescription & SpecificationsQuantityUnitRate (Rs)Total Amount (Rs)
Subtotal Project Cost
Rs 0
Goods & Services Tax (18% GST)
Rs 0
Grand Total with Taxes
Rs 0
PREPARED BY:
NVS-DESIGN LLP Engineering Team
Solar PV Design & EPC Consulting Division
APPROVED & CERTIFIED BY:
Chief Solar Project Engineer
Chartered Engineer (CEA & IEC Certified)

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