Top 10 Best Solar Designing Software of 2026

Aurora Solar is a cloud-based solar design and sales platform that enables professionals to create precise 3D PV system models using satellite imagery, LiDAR, and aerial data. It offers advanced features like shade analysis, energy production forecasting, financial modeling, and automated proposal generation to streamline the design-to-sales process. Widely used by installers and engineers, it supports accurate performance simulations and collaborative workflows for optimizing solar projects.

HelioScope is a cloud-based solar design and engineering platform tailored for utility-scale PV systems, enabling rapid layout generation, 3D shading analysis, and precise energy yield modeling. It streamlines the design process with automated optimization tools, financial proformas, and collaborative features for teams. The software excels in handling complex, large-scale projects from early-stage proposals to detailed engineering.

OpenSolar is a cloud-based platform designed for solar professionals to create accurate 3D solar system designs, generate professional proposals, and manage sales pipelines. It features intuitive tools for roof modeling, panel optimization, shading analysis, and financial calculations tailored to local incentives and tariffs. The software emphasizes speed and collaboration, allowing teams to work in real-time across devices.

PVsyst is a professional-grade software specialized in the detailed design, simulation, and performance analysis of photovoltaic (PV) systems, from rooftops to large-scale ground-mounted plants. It excels in modeling complex shading scenarios, electrical layouts, and energy yield predictions using high-precision meteorological data and component databases. Widely used by engineers for bankable simulations, it supports financial analysis and grid compliance checks.

PV*SOL from Valentin Software is a professional-grade photovoltaic system design and simulation tool that enables detailed 3D modeling of roofs and surroundings for precise shading analysis. It supports grid-connected, off-grid, and hybrid systems with battery storage, offering accurate yield predictions based on real weather data and extensive component databases. The software generates comprehensive reports for planning, sales, and compliance purposes.

PVcase is a powerful AutoCAD and Revit plugin designed for professional solar PV system design, automating layout generation, stringing, and 3D modeling for ground-mounted and rooftop projects. It excels in handling complex terrains with features like automatic table placement, energy yield optimization, and clash detection. The software streamlines workflows for utility-scale solar engineers by integrating seamlessly with CAD environments.

The System Advisor Model (SAM), developed by the National Renewable Energy Laboratory (NREL), is a free desktop application for simulating the performance and financial aspects of renewable energy systems, with comprehensive support for solar PV, concentrating solar power (CSP), and other technologies. It enables users to input system parameters, weather data, and financial assumptions to generate detailed hourly production forecasts, levelized cost of energy (LCOE), and cash flow analyses. SAM is widely used for techno-economic studies, parametric analyses, and project feasibility assessments in the solar industry.

SolarEdge Designer is a free, web-based platform for designing residential and commercial solar PV systems using satellite imagery, 3D modeling, and drag-and-drop tools. It optimizes layouts for maximum energy production, simulates performance with real weather data, and generates professional reports including financial analysis. The tool is tightly integrated with SolarEdge's ecosystem of inverters, optimizers, and monitoring hardware.

Enphase Designer is a cloud-based solar design platform specifically optimized for Enphase microinverters, IQ Batteries, and related ecosystem products. It allows users to create detailed 3D roof models using aerial imagery and LiDAR data, perform precise shading analysis, optimize PV array layouts, and generate accurate energy production forecasts. The tool produces professional proposals, permit-ready documents, and integrates with the Enphase Enlighten monitoring platform for post-installation insights.

EasySolar is a cloud-based solar design software that enables rapid creation of professional PV system designs using satellite imagery and automated 3D roof modeling. It provides tools for panel placement optimization, shading analysis, energy production forecasts, and generation of financial proposals with interactive 3D presentations. Targeted at solar installers, it streamlines the design-to-sale process with CRM integrations and mobile support.