Curated list of the most accessible solar design tools for homeowners, hobbyists, and small‑scale installers to plan photovoltaic systems with intuitive CAD interfaces.
Get targeted exposure with custom position pinning and highlighted placement.
3‑D simulation software with drag‑and‑drop layout, shading analysis, and performance reports tailored for DIY users.
Web‑based solar design platform offering easy site layout, module placement, and loss analysis for residential projects.
Cloud‑first design suite with intuitive UI, automatic shading, and instant financial proposals—free tier for hobbyists.
Simple CAD‑style editor for quick roof‑mount layouts, with built‑in module libraries and exportable CSV reports.
DOE‑backed performance model that includes a visual layout editor and detailed financial analysis for DIY projects.
Straightforward web tool for estimating energy production; includes a basic site‑plan sketch feature.
Free online planner focused on SolarEdge inverters; intuitive drag‑and‑drop roof design with instant yield estimates.
Lightweight desktop app for quick 2‑D roof mapping, module selection, and shading analysis.
Beginner‑friendly web app that guides users through step‑by‑step system sizing and layout creation.
Free Windows tool with a familiar CAD interface, pre‑loaded module catalogs, and exportable PDF reports.
Online platform offering high‑resolution solar resource maps and a simple layout editor for DIY designers.
Scaled‑down version of the professional software, providing a user‑friendly layout wizard and basic performance outputs.
Browser‑based calculator with a visual roof‑grid builder and instant energy yield preview.
Mac‑compatible CAD tool with drag‑and‑drop module placement, tilt/azimuth controls, and simple reporting.
Free Android/iOS app that lets users sketch roof outlines, place panels, and view real‑time production estimates.
Desktop application focused on shading analysis; includes an easy‑to‑use layout canvas for DIY users.
Web tool with a library of popular residential modules and inverters, plus a one‑click export to CSV for installers.
Simple online planner that guides users through site data entry, panel selection, and visual system drawing.
Free CAD‑style interface for quick roof‑mount designs, integrated with a basic financial calculator.
Intuitive drag‑and‑drop editor with real‑time shading shadows and a built‑in module database.
Educational simulation platform that includes a visual layout builder and performance graphs for DIY enthusiasts.
Desktop CAD program offering precise panel placement, 3‑D visualization, and export to AutoCAD formats.
Web‑based tool focused on quick site‑plan creation with pre‑loaded roof templates and module sets.
Free sketching app for solar arrays; lets users draw roof outlines, place panels, and instantly see estimated output.
Lightweight CAD environment with a library of over 200 residential modules and simple export to PDF/Excel.
User‑friendly interface for creating 2‑D solar site plans, complete with loss factor calculators.
Online solar position calculator that also offers a basic layout canvas for panel placement.
Free Windows app with drag‑and‑drop module placement, automatic shading detection, and simple financial summary.
Advanced yet approachable planner with built‑in cost estimation and the ability to generate client‑ready PDFs.
Web‑based CAD tool that emphasizes ease of use, offering quick roof import via image upload and auto‑panel placement.
Free tier of the SunDesigner suite, perfect for hobbyists needing basic layout and shading visualization.
Simplified version of SolarSim focused on residential projects, with an intuitive drag‑and‑drop interface.
Quick‑start web app for creating a rough system layout and getting an instant energy estimate.
Specialized layout tool that integrates with SolarFlux’s performance engine for instant yield feedback.
Enhanced version of SunSketch with 3‑D view, module library updates, and export to Excel for bill‑of‑materials.