SunPower Designer is a cloud‑based solar design and proposal platform that combines layout, shading analysis, performance modeling, and sales‑ready documentation. Below are 20 comparable solar‑design tools that can be used as alternatives for engineers, installers, and sales teams.
Get targeted exposure with custom position pinning and highlighted placement.
Web‑based design suite with 3‑D modeling, automatic shading analysis, and instant proposal generation.
Cloud‑native PV design tool that merges layout, performance simulation, and financial analysis in a single workflow.
Desktop simulation software for 3‑D PV system design, shading, and yield forecasting with detailed loss modeling.
Industry‑standard PV system design and performance analysis software with extensive database of modules and inverters.
Free NREL tool for detailed energy production, financial, and lifecycle analysis of renewable energy projects.
AI‑driven 3‑D layout engine that automates large‑scale ground‑mount and rooftop designs with quick export to CAD.
Solar resource and performance modeling platform offering high‑resolution irradiance data and PV yield simulations.
Integrated design tool for SolarEdge inverters and optimizers, featuring layout, shading, and performance reports.
Financial modeling and proposal generation platform that couples performance simulation with utility rate analysis.
Web‑based proposal and design software that streamlines system layout, shading analysis, and client‑facing presentations.
Free, open‑source solar design suite with 3‑D modeling, performance estimates, and customizable proposals.
All‑in‑one design platform offering 3‑D layout, shading, electrical design, and automated documentation.
Enterprise‑grade design and engineering tool for utility‑scale PV, featuring GIS integration and detailed loss modeling.
Cloud‑based design and sales platform that automates site surveys, layout, and proposal creation.
3‑D modeling software enhanced with solar analysis plugins (e.g., Skelion, Sefaira) for layout and shading studies.
NREL’s optimization tool for sizing, dispatch, and financial analysis of hybrid renewable energy systems.
Simple web tool for quick PV system sizing, performance estimation, and financial calculations.
AI‑driven design platform focused on residential rooftop layouts, auto‑generating shading‑aware proposals.
Open‑source Python library for PV system layout, shading analysis, and energy yield calculation.
U.S. DOE’s web tool expanded with API access for bulk performance simulations and basic design outputs.