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#2 Aurora Solar
Industry‑leading SaaS for 3‑D site modeling, shading analysis, energy yield simulation, and automated proposal generation.
#3 HelioScope
Web‑based design tool that combines fast layout creation, detailed shading analysis, and performance modeling for utility‑scale and commercial PV.
#4 PV*SOL
Desktop software for 3‑D PV system design, shading calculations, and financial analysis, widely used in Europe.
#5 PVSyst
Comprehensive simulation suite for designing, sizing, and evaluating PV systems, with extensive database of modules and inverters.
Free NREL‑developed tool for performance and financial modeling of renewable energy projects, supporting PV, storage, and hybrid systems.
#7 OpenSolar
Open‑source, cloud‑based platform for creating site‑specific solar designs, shade analysis, and client‑facing proposals.
#8 SolarPlanner
Web application for quick PV layout generation, shading analysis, and preliminary financial estimates.
#9 Solargraf
User‑friendly design and proposal builder with drag‑and‑drop layout, automated shading, and customizable sales decks.
#10 PVcase
AI‑driven design platform for utility‑scale ground‑mount PV, offering automated layout, terrain modeling, and production forecasts.
#11 SolarNexus
All‑in‑one solution for residential solar sales, combining design, proposal generation, and CRM integration.
#12 SunDAT
Cloud‑based design tool focused on commercial and utility‑scale projects, with advanced shading, terrain, and financial analysis.
#13 Homer Energy
Hybrid Optimization Model for Multiple Energy Resources (HOMER) – simulates PV + storage + backup generation for micro‑grid design.
#14 PVComplete
Integrated design suite for residential and commercial PV, featuring auto‑layout, shading, and proposal export.
#15 SolarDesignTool
Free, open‑source desktop application for creating 2‑D PV layouts, performing loss analysis, and generating basic reports.
#16 Solargis
High‑resolution solar resource database combined with design tools for performance simulation and feasibility studies.
#17 PowerHub
Web platform for designing, simulating, and managing PV projects, with real‑time monitoring integration.
#18 EnergyToolbase
Financial modeling and proposal generation tool that pairs with design data to produce investor‑ready cash flow analyses.
#19 SolarPro
Desktop software for residential PV design, offering quick layout, shading analysis, and proposal PDFs.
#20 HelioScope Lite
A free, lightweight version of HelioScope for small‑scale residential designs with basic shading and yield estimates.
Integrated design and sales platform used by Sungevity installers, featuring automated layout, shading, and financing options.