Solar PV Simulation Software
Professional-grade photovoltaic modeling with multi-array design, MPPT string sizing, and bankable loss analysis. Design utility-scale and commercial PV systems with manufacturer-grade accuracy.
Professional-Grade Solar Modeling
From multi-array layouts to 25-year energy projections, Energy Optima delivers PVSyst-class accuracy in a modern, collaborative platform.
Array Design
Multi-Array PV Designer
Configure multiple independent PV arrays with separate orientations, tilts, and module selections. Each array is modeled independently with its own inverter assignment and string configuration.
- Unlimited parallel arrays per project
- Per-array tilt, azimuth, and tracker configuration
- Mixed module and inverter assignments
String Sizing
MPPT String Sizing
Automated string sizing algorithm respecting inverter MPPT voltage windows, maximum current limits, and temperature-compensated Voc/Vmp calculations per IEC 62548.
- Temperature-compensated voltage limits
- MPPT overloading analysis
- Cable ampacity and voltage drop
Loss Analysis
10-Category Loss Waterfall
IEC 61724-compliant loss accounting across soiling, shading, mismatch, cabling, inverter efficiency, transformer, and availability. Each loss independently configurable.
- Gross to net energy waterfall visualization
- Near and far shading analysis
- Annual degradation curve
Projections
25-Year Energy Projections
Year-by-year energy yield projections accounting for module degradation, inverter replacement schedules, and soiling recovery. P50/P90 probability analysis for bankable energy estimates.
- P50, P75, P90 exceedance probabilities
- Interannual weather variability
- Degradation-adjusted annual cash flows
Database
Manufacturer Component Database
127 PV modules and 215 inverters from leading manufacturers including JinkoSolar, LONGi, Trina, Canadian Solar, Sungrow, Huawei, SMA, and Fronius. All with real datasheet parameters.
- 127 modules, 5 kW to 700 W
- 215 inverters, 5 kW to 4400 kW
- Custom component upload
Weather Data
Weather Data Integration
Automatic weather data sourcing from PVGIS TMY (global, 1994-2022), NREL NSRDB (Americas), and custom TMY uploads in CSV, Excel, EPW, and TMY formats. Multi-year data support.
- PVGIS global coverage
- NREL NSRDB for Americas
- Custom EPW/TMY file upload
How It Works
A closer look at the design, analysis, and financial modeling behind our PV simulation engine.
PV Designer Layout & Array Configuration
Our PV designer provides a visual, interactive layout for configuring multi-array systems. Each array can have independent orientation (tilt, azimuth), tracker type (fixed, 1-axis, 2-axis), module selection, and inverter assignment. The string sizing algorithm automatically calculates optimal strings per MPPT based on temperature-compensated voltage limits at both lowest and highest operating temperatures per IEC 62548.
The system validates string configuration against inverter MPPT voltage windows (min/max), maximum short-circuit current, and cable ampacity limits. Ground coverage ratio (GCR) and row spacing are computed from site latitude, preventing inter-row shading during winter solstice hours. Backtracking is supported for 1-axis tracker systems.
Multi-array PV designer with independent orientation and inverter assignment
10-Category Loss Waterfall Analysis
Our IEC 61724-compliant loss waterfall tracks energy from irradiance to AC injection through 10 independently configurable loss categories. The analysis follows the standard gross-to-net energy chain: (1) soiling, (2) near shading, (3) far shading, (4) temperature derating (NOCT-based), (5) module mismatch, (6) DC cabling, (7) inverter efficiency (weighted by input power), (8) AC cabling, (9) transformer, and (10) availability.
Each loss is modeled using physics-based algorithms. Temperature derating uses the NOCT (Nominal Operating Cell Temperature) method with site-specific ambient temperature and irradiance. Inverter efficiency curves are loaded from real manufacturer data with weighted-averaging by hourly power levels. The final performance ratio (PR) is calculated at both DC and AC sides.
10-stage loss waterfall with per-category configurable parameters
NPV, IRR, LCOE & PPA Modeling
Financial calculations follow NREL SAM methodology with post-tax nominal cash flows over the full project life. NPV is calculated using project-specific weighted average cost of capital (WACC). IRR is solved iteratively from the discounted cash flow series. LCOE uses the standard PVSyst formula (total lifecycle cost / total lifetime energy generation), with degradation-adjusted annual energy yields.
PPA modeling allows fixed-price, escalation-rate, and inflation-indexed power purchase agreements. Revenue streams include energy sales, renewable energy certificates (RECs), and capacity payments. Cost modeling captures CAPEX (modules, inverters, BOS, EPC, development), OPEX (O&M, insurance, land lease), inverter replacement every 10-15 years, and salvage value at project end. Sensitivity analysis shows the impact of irradiance, CAPEX, and PPA price on project returns.
Comprehensive financial analysis with PPA modeling and sensitivity studies
From Site to Report in Six Steps
Our streamlined workflow takes you from site assessment through optimization to professional reporting.
Site Assessment
Enter location, select weather data source, configure site-specific constraints like shading obstacles and land area.
System Design
Configure arrays, select modules and inverters from database, run string sizing, and validate against electrical limits.
Loss Analysis
Set 10 loss categories, configure soiling and degradation assumptions, review the loss waterfall visualization.
Financial Modeling
Input CAPEX, OPEX, PPA terms, and financing structure. Generate NPV, IRR, LCOE, and cash flow projections.
Optimization
Use LP optimization or rule-based auto-design to find optimal array sizing, module-to-inverter ratio, and tilt angle.
Reporting
Export professional reports in Word, Excel, PDF, or PowerPoint. White-label ready with your branding.
Built for Real PV Projects
Energy Optima's solar PV simulation module is trusted by consultants, EPCs, and developers worldwide for its accuracy and depth.
Comprehensive Component Library
Access the industry's most up-to-date database of PV modules and inverters, all with verified manufacturer datasheet parameters. Our team continuously updates the library as new products are released.
Validated Accuracy
Our PV simulation engine has been validated against NREL's System Advisor Model (SAM) and field data from operating utility-scale plants. Typical accuracy within 2% for standard configurations.
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