Mobile Solar Design: iPad and Tablet Workflows

Last updated: November 2026. SurgePV publishes this post and sells solar design software.

A solar site visit used to end with a clipboard, a camera and a promise to email a proposal later. Today a rep can carry a tablet, capture roof dimensions with AR, review a shading estimate and show a preliminary proposal before leaving the property. The value is a shorter gap between survey and proposal, and fewer site surprises found after the customer has gone.

This guide covers what to run on a tablet or phone in the field, which hardware to carry, how offline and AI tools behave, and how mobile work should hand off to desktop engineering. Vendor details below come from each vendor’s own website, and anything a vendor does not publish is marked as something to verify.

In this guide:

• What changed in mobile solar design
• The app landscape by category
• Tablet vs phone for field design
• Key features: AR measurement, GPS, offline, on-site proposals
• Handoff to desktop platforms
• AI in mobile design
• How to choose a mobile tool for your team

What Changed in Mobile Solar Design

Three shifts explain why field design is now practical. None of them removes the need to check dimensions with a measuring tool.

1. LiDAR and AR measurement. Some recent tablets and phones include depth sensors, and AR apps use the camera to estimate roof dimensions. That can speed up a first pass at roof geometry.
2. AI roof modeling. Aurora’s own site says Aurora AI can generate a roof model and code-compliant panel layout in minutes, which lets a rep design live with a homeowner without waiting on a designer.
3. Hybrid surveys. A homeowner uploads photos and basic site data before the visit, and the field rep verifies and refines the design on site.

The Mobile Solar Design App Landscape

Mobile solar design tools fall into three groups: native tablet apps, mobile-friendly web platforms, and hardware-assisted field tools. The table lists what each vendor says on its own website, plus what to verify before you buy.

Other tools that appear on field-design shortlists include iSolergo, RAULI, Arka 360, Solargraf and the Solmetric SunEye shade tool. Read each vendor’s own documentation for platform, offline support and pricing, because those details change.

For a wider comparison of platforms, read how to choose solar design software, free vs paid solar design software and the best solar design software guide.

Tablet vs Phone: Which Works for Field Design?

A tablet is the better field design device, and a phone is the better capture device. The screen is the main reason: layout and customer review need room.

Tablets

Advantages:

• Larger screen for panel layout and shading review
• Better for showing a proposal to a customer
• Stylus and keyboard options on many models
• Some models include depth sensors for AR measurement

Disadvantages:

• Extra device to carry and charge
• Needs a protective case on a roof or job site

Verdict: For layout, shading review and customer presentation, use a tablet.

Smartphones

Advantages:

• Always carried, so no extra device
• Quick photo capture and AR measurements
• Easy communication with the office

Disadvantages:

• Small screen for detailed layout
• Hard to present a proposal on
• Battery drains quickly under heavy app use

Verdict: Use a phone for photos, quick checks and data capture, and a tablet for design work.

Recommended Field Kit

Minimum kit:

• Tablet with a protective case
• Laser distance meter for critical dimensions
• Compass app or digital inclinometer for azimuth and tilt

Extended kit for larger or shaded sites:

• Tablet with depth sensor, if your tools use AR
• Bluetooth laser distance meter
• Dedicated shade tool or a drone for aerial imagery
• Rugged case and screen protector

Prices change often, so get current quotes instead of planning around a fixed figure.

Key Features of Mobile Solar Design Apps

AR Roof Measurement

AR measurement uses the device camera and, on some devices, a depth sensor to estimate roof lengths and heights without a tape measure. Accuracy depends on the device, lighting, roof access and the app, and vendors rarely publish it for your conditions. Before relying on a tool, measure a roof you have already surveyed and record the difference. Cross-check any dimension that drives layout with a laser distance meter.

GPS-Integrated Mapping

GPS fixes the site location, which feeds irradiance data lookup, weather station selection, utility territory identification and permitting jurisdiction. Location from a phone or tablet is good enough to start a model, but check the address by hand for permit documents.

Offline Capability

Offline use matters on rural sites with weak coverage. Support varies by vendor and by feature, and most vendors do not publish the limits clearly, so ask for it in writing and test it before a visit.

A workaround for cloud tools is to preload satellite imagery and project data in the office, work through a basic layout in airplane mode, and sync on return. This suits simple layouts but may not suit AI roof modeling, which usually needs a connection.

On-Site Proposal Generation

Generating a preliminary proposal while still on the property is the most valuable mobile capability. It lets the customer react to real numbers while the rep can still fix a measurement or shading assumption.

The chart shows an illustrative on-site visit plan. The step times are planning assumptions for a standard residential visit, not measured data.

Treat the result as a preliminary proposal. Confirm measurements, shading, equipment and utility requirements before any commitment. For visit structure, see what to accomplish during a solar site visit.

Integration with Desktop Platforms

Mobile design is the starting point, not the endpoint. Most projects still need engineering review, permit documentation and final specifications, which are easier on desktop.

Cloud Sync

Cloud platforms sync designs across devices so desktop users can open a project the tablet user started. The limits are connectivity and upload time for large models.

Export and Import

Some tools export files for desktop software. Common formats include PDF for proposals, CSV for data tables, and DXF or DWG for CAD. Check which formats your tool exports and whether the receiving software reads them without re-entry.

API Integration

Teams with custom tech stacks can push field data into CRMs or project systems if the vendor offers an API. Check the vendor’s documentation for what is available.

Handoff Best Practices

1. Standardize data fields. Use the same names for roof dimensions, azimuth, tilt and electrical parameters in mobile and desktop tools.
2. Attach photos to every project. Desktop engineers should be able to check conditions without revisiting.
3. Flag items for review. Mark uncertain measurements, shading concerns and electrical panel limits.
4. Track changes. When desktop engineers change a mobile design, record what changed and why.

AI-Powered Mobile Solar Design

AI changes how fast a first draft appears. It does not change who is responsible for checking it.

AI Roof Modeling

Aurora’s website says Aurora AI generates a roof model and code-compliant panel layout in minutes. Complex roofs with dormers or irregular shapes are the cases most likely to need manual refinement, so inspect the model against site photos.

AR Measurement From Photos

Some apps measure roof faces from camera photos taken from the ground. These estimates are weaker on flat roofs and complex geometry, so treat them as preliminary and cross-check what matters.

Automated Shade Analysis

Some apps estimate shading from panoramic photos. Photo-based shade analysis is a preliminary tool. For production guarantees or financing, use a dedicated shading method such as shadow analysis software or an on-site shade tool.

Virtual Surveys

A virtual survey lets the homeowner collect site data before the rep arrives. It can screen out obviously unsuitable sites and let reps prepare in advance. Photo quality varies, and some sites need physical inspection for structural or electrical assessment.

Mobile vs Desktop: What to Cross-Check

Mobile tools suit sales proposals and preliminary design. For bankable documents and utility interconnection applications, verify critical measurements with dedicated instruments.

How to Choose a Mobile Solar Design Tool

Solo Installers and Small Teams

Priority: Cost and simplicity. Compare free and low-cost tools on offline support, proposal output and the features that sit behind paid tiers. Free vs paid solar design software walks through the trade-offs.

Growing Sales Teams

Priority: Speed and consistency. Look for fast on-site proposal generation, AI roof modeling, CRM integration and multi-user management. Pilot two tools on the same five roofs and compare results.

Commercial EPCs

Priority: Engineering accuracy and desktop handoff. Use mobile tools for site data capture, then move into desktop engineering platforms. Check export formats, three-phase system support and permit documentation.

Conclusion

Mobile solar design is practical when you use it for speed on site and keep engineering checks on desktop. The right tool depends on your scale, your connectivity and how much your proposals depend on shading and electrical detail.

Three actions to take this week:

• Pick one tablet workflow and pilot it on five roofs. Record time per step and the measurement error against a laser meter.
• Standardize your mobile-to-desktop handoff. Define which decisions happen on site and which need engineering review.
• Test AI roof modeling on your next 10 sites. Compare AI-generated dimensions with manual measurements and calibrate how far you trust it.

For cloud-based solar PV design software that covers 3D roof modeling, shading analysis and proposal generation, see SurgePV’s solar proposal software, check the pricing page or book a demo to see the workflow.

Frequently Asked Questions

What is the best mobile app for solar design on iPad?

There is no single best app, because the right one depends on what you must do on site. Aurora describes a mobile-friendly Sales Mode, OpenSolar describes its software as free of charge, and Solar Ladder links iOS and Android apps. Test each on your own tablet with a roof you have already measured.

Can you design a solar system on a phone?

Yes for site capture, but a tablet suits detailed layout better. A phone is good for roof photos, AR measurement and quick checks. For layout, shading review and showing a proposal to a customer, the larger tablet screen is easier to work with.

Do solar design apps work offline?

Some tools work offline, but support varies by vendor and feature, so get it confirmed in writing before relying on it. Cloud design and AI roof modeling usually need a connection. For rural sites, preload imagery and project data in the office and test airplane mode before the visit.

How accurate is mobile solar measurement compared to desktop?

Accuracy depends on the tool, lighting and technique more than on the device. AR and photo-based measurements suit preliminary design, but critical dimensions should be cross-checked with a laser distance meter or a drone survey. Test your app on a roof you have already measured and record the error.

What hardware do I need for mobile solar site surveys?

The minimum kit is a tablet, a laser distance meter, and a way to record tilt and azimuth, such as a digital inclinometer and a compass app. Add a dedicated shade tool or a drone for larger or heavily shaded sites. Match the kit to the complexity of the projects you survey.

Can mobile solar apps generate proposals on-site?

Yes, several platforms offer proposal generation from a tablet or browser. Aurora describes Sales Mode as a mobile-friendly proposal, and Solar Ladder lists proposals as a module. Treat an on-site proposal as preliminary until measurements, shading and utility details are verified.

What is AI-powered mobile solar design?

It uses machine learning to draft roof models, layouts or measurements for a person to review. Aurora says Aurora AI can generate a roof model and code-compliant panel layout in minutes. Treat the output as a draft and verify dimensions and constraints before it becomes the design basis.