Best Mobile Apps for On‑Site Solar Site‑Assessment and Shading Analysis

Companion app for the SunEye handheld device; captures high‑resolution 360° HDR images, generates instant shading‑analysis reports, and exports data to PV*SOL, HelioScope, and Aurora.

Mobile app that pairs with the PV Analyzer hardware to measure irradiance, temperature, and module performance on‑site; includes real‑time shading detection and loss calculations.

GPS‑driven solar path and shading analysis tool for Android & iOS; provides 3‑D sun‑position visualisation, horizon profiles, and instant shade‑percentage calculations for any location.

Digital version of the classic Pathfinder; uses device compass and GPS to generate a sky‑view diagram and shading‑impact report without the need for the physical device.

Augmented‑reality app for iOS/Android that overlays the sun’s trajectory onto the real world; ideal for quick visual shading checks on rooftops and ground mounts.

All‑in‑one calculator for estimating system size, energy yield, and shading losses; includes a built‑in sun‑path diagram and can export CSV reports.

Mobile front‑end for the HelioScope web platform; lets users view and edit site‑assessment data, run shading simulations, and generate performance reports from the field.

Companion app for Aurora’s cloud‑based design suite; captures site photos, GPS data, and instantly runs 3‑D shading analysis synced with the desktop workspace.

Free iOS/Android app that helps installers map roof geometry, place modules, and run shading analysis using SolarEdge’s proprietary simulation engine.

While primarily a monitoring tool, the app includes a site‑assessment mode that captures roof layout, sun‑path data, and provides preliminary shading loss estimates.

iOS‑only app offering a 3‑D sun‑position visualiser, horizon view, and shading calculator; integrates with Apple Maps for easy site location.

Android app that lets installers input roof dimensions, tilt, and azimuth; runs a quick shading analysis using a built‑in sky‑view model.

Cross‑platform app that combines a GIS‑based site map with real‑time shading analysis; supports import of drone orthomosaics for high‑precision assessments.

Data‑logger companion app that records on‑site irradiance, temperature, and shading events; useful for validating shading models with actual measurements.

Mobile access to Solargis’s high‑resolution solar resource maps; includes a built‑in shading estimator that uses local terrain and building data.

AI‑driven app that analyses a photo of a roof and automatically identifies shading objects, quantifying their impact on PV performance.

Official SunPower app for field engineers; captures site photos, GPS coordinates, and runs SunPower’s proprietary shading and performance simulations.

Comprehensive tool for on‑site PV layout, tilt/azimuth optimisation, and shading loss calculation; supports export to CSV, Excel, and PDF.

iOS app that overlays 3‑D solar trajectories onto live camera view; includes a quick‑calc for shading percentage based on user‑drawn obstacles.

Android‑focused app that guides installers through a step‑by‑step site‑survey checklist, captures GPS‑tagged photos, and runs a basic shading analysis.

Lightweight app for quick shading loss estimates; uses device orientation sensors to simulate sun position and calculates loss based on drawn obstacles.

Beyond monitoring, this module adds a field‑assessment toolkit with sun‑path visualisation and shading impact estimation for existing installations.

Companion to the desktop PV*SOL software; lets users capture site data, run simplified shading simulations, and sync results with the desktop project.

iOS/Android app focused on residential rooftop assessments; includes auto‑detect of roof edges via AR and instant shading loss percentages.

Open‑source utility that provides precise sun‑position data, sunrise/sunset times, and a simple shading overlay; useful for quick field checks.

Leverages machine‑learning to analyse drone or phone images of a site, automatically generating a 3‑D shading model and loss report.

Augmented‑reality app that projects the sun’s path onto the real world in real time; ideal for visualising shading throughout the year.

All‑in‑one inspection app that combines site photos, GPS tagging, sun‑path diagrams, and a built‑in shading calculator; exports to PDF for client reports.

Simple Android app that lets users take a picture of a roof, tap on shading objects, and instantly see the estimated energy loss.

Mobile portal to SolarGIS’s high‑resolution solar resource database; includes a quick shading estimator based on terrain and building footprints.