Top 20 Alternatives to Solar Proposals in Solar Design & Proposal Software

Solar Proposals is a cloud‑based platform for creating solar site designs, shade analysis, and client‑ready proposals. Looking for other tools that can help solar installers, designers, and sales teams streamline their workflow? Below are 20 popular alternatives in the Solar Design & Proposal Software space.

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Top Competitors to Consider

Comprehensive cloud‑based design suite with 3‑D modeling, shade analysis, performance simulation, and automated proposal generation.

Web‑based PV layout and performance tool that combines system design, shading analysis, and financial modeling in one interface.

#4 PV*SOL

Desktop software for detailed 3‑D PV system simulation, shading analysis, and energy yield forecasting, with extensive component libraries.

#5 PVSyst

Industry‑standard PV system design and simulation software offering robust shading, loss, and financial analysis tools.

Online platform that provides quick site layout, shading studies, and proposal PDFs, aimed at residential installers.

Free, open‑source solar design and proposal solution with drag‑and‑drop layout, real‑time shading, and customizable proposal templates.

#8 SunDAT

Data‑driven design tool that leverages satellite imagery for accurate site assessment, layout, and performance estimates.

All‑in‑one proposal software with built‑in design engine, financial calculators, and e‑sign capabilities for fast client turnaround.

Design suite integrated with SolarEdge hardware, offering system sizing, layout, and performance monitoring setup.

Cloud‑based design platform that combines 3‑D modeling, shading analysis, and automated proposal creation for commercial projects.

#12 Sighten

AI‑enhanced solar design tool that quickly generates site plans, energy forecasts, and client‑ready proposals.

End‑to‑end solution for residential solar sales, featuring design automation, financing options, and proposal management.

3‑D modeling software augmented with solar analysis plugins (e.g., Skelion) for custom site design and shading studies.

#15 Solstice

Web platform that provides rapid site assessment, layout generation, and proposal PDFs, targeting small‑to‑mid‑size installers.

User‑friendly design tool offering automated layout, performance simulation, and customizable proposal templates.

Marketplace‑linked design engine that creates site layouts, energy forecasts, and financing options for consumer proposals.

#18 Solargy

AI‑driven solar design platform that produces optimized layouts, shading analysis, and instant proposal PDFs.

#19 PowerHub

Comprehensive solar design and sales platform with 3‑D modeling, performance analysis, and integrated CRM for proposals.

#20 SolarCalc

Lightweight web app for quick PV system sizing, shading checks, and generation of simple proposal documents.

A streamlined version of Aurora’s Helioscope focused on fast residential design, layout, and proposal export.