Tegrona Released Free Solar Layout Software
The tool enables automated photovoltaic capacity estimation from imagery without requiring specialized CAD software.
Updated on Sept. 26, 2026 in Software
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Tegrona has launched Tegrona Lite, a free software application that calculates photovoltaic module layouts using drone, ground-level, or roof plan images. This local-processing tool allows installers to estimate module counts and system capacity without manual site measurements or CAD workflows.
Why it matters
By eliminating the need for complex CAD tools or on-site manual measuring, this software accelerates the planning phase for solar installations. It streamlines the initial design process by automating geometry calculations from standard photographs.
The application supports 11 languages in its web-based version and runs locally on devices to avoid image uploads. It is compatible with macOS 14 and Windows 10 or later.
The players
Tegrona
A German developer focused on solar planning software and automated layout estimation tools.
The details
Tegrona Lite calculates perspective correction by identifying vanishing points—the point where parallel lines appear to converge—from roof tile lines in uploaded images. Users define roof surfaces and exclusion zones for obstacles, while the software uses known roof tile dimensions to automatically calculate image scale and update capacity estimates.
Timeline
September 26, 2026: Tegrona introduced the Tegrona Lite software.
The Tech Race
This release directly challenges traditional CAD workflows by simplifying the site assessment process into an image-processing task. It follows the industry trend of replacing specialized engineering software with accessible, browser-based tools designed for faster project turnarounds.
Installers can immediately deploy this tool on macOS 14 or Windows 10 systems to automate layout estimates without needing to perform manual roof measurements. The software is currently available for use across drone, ground, and plan-based image inputs.
The takeaway
Tegrona Lite simplifies solar project estimation by automating geometric scaling from standard photographs. Users can monitor the platform for future updates to see if the developer adds energy yield or shading analysis features, which remain currently unsupported.
Further reading
Explore more developments in solar planning tools within the Software section.
Source note: This article includes information reported by pv magazine International.
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