Choosing the right solar design software can have a significant impact on project efficiency, proposal quality, and overall business growth. Whether you're designing residential rooftop systems, commercial installations, or utility-scale solar plants, the right platform helps reduce manual work, improve accuracy, and accelerate project delivery.
Today's solar software solutions go far beyond simple panel layouts. Modern platforms combine 3D modeling, shading analysis, financial forecasting, proposal generation, engineering workflows, and project management into a single ecosystem.
To help solar professionals make an informed decision, we've reviewed the best solar design software platforms available in 2025.
ARKA 360 is a comprehensive solar design and proposal platform that enables installers and EPCs to design systems, generate proposals, perform shading analysis, and streamline project workflows from a single dashboard.
Residential and commercial solar installers looking for an all-in-one design and sales platform.
Aurora Solar is one of the most established solar design platforms in the industry. Its remote site assessment capabilities and high-quality visualizations make it particularly popular among residential solar companies.
Residential solar companies prioritizing proposal quality and customer experience.
SurgePV is a modern solar software platform built to manage the complete solar project lifecycle. It combines solar design, engineering workflows, proposal generation, financial modeling, and project management into a unified system.
Unlike many platforms that focus on only one part of the process, SurgePV connects design, sales, engineering, and operations, helping solar companies improve collaboration and increase operational efficiency.
SurgePV offers one of the most complete solar software ecosystems available today. By eliminating the need for multiple disconnected tools, it helps teams streamline workflows, improve proposal quality, and reduce project turnaround times.
Solar installers, EPCs, developers, and engineering firms looking for a scalable platform that supports both technical and business operations.
HelioScope is a cloud-based solar design platform focused on performance modeling and commercial project analysis. It is widely used by EPCs and engineering teams for production forecasting and system optimization.
Commercial and industrial solar projects requiring detailed performance analysis.
PVcase is designed specifically for utility-scale and large commercial solar projects. Built on AutoCAD, it provides advanced engineering and terrain-based design capabilities.
Developers and EPCs working on large-scale ground-mounted solar projects.
OpenSolar is one of the most popular free solar design platforms available today. It combines design, proposal generation, and customer management features without licensing costs.
Small solar companies and startups.
PVsyst remains one of the most trusted tools for solar simulation and bankability analysis, particularly for utility-scale and engineering-focused projects.
Engineers, consultants, and project developers.
PV*SOL is known for its advanced photovoltaic system simulations and detailed performance forecasting.
Technical professionals seeking highly detailed simulations.
SolarDesignTool provides solar professionals with a straightforward platform for creating layouts, optimizing system configurations, and generating production estimates.
Residential and small commercial projects.
Solargraf focuses on helping installers generate proposals quickly while simplifying financing and permitting workflows.
Residential solar sales teams.
The best platform depends on your business model:
The solar software market continues to evolve rapidly, with platforms offering increasingly sophisticated design, simulation, and project management capabilities.
For companies seeking a complete business and technical solution, ARKA 360, Aurora Solar, and SurgePV stand out as the strongest all-around platforms in 2025. Meanwhile, specialized tools such as HelioScope, PVcase, and PVsyst remain excellent choices for engineering-heavy and utility-scale projects.
The right software can dramatically improve design accuracy, proposal quality, team efficiency, and project profitability—making it one of the most important technology investments a solar business can make.
