Glint and Glare Assessment for
Solar Developments

Why Glint and Glare Matters for Solar

Solar panels are designed to absorb sunlight, but they can also reflect it. These reflections – known as glint and glare – may affect aviation, road and rail safety, or the amenity of nearby residents.

For solar developments, especially large-scale and NSIP projects, glint and glare is a key planning issue. Objections from airports, highways authorities, or neighbours can delay or derail applications if impacts are not addressed.

An assessment provides the objective evidence needed to reassure consultees and demonstrate that reflections from your solar scheme will not cause significant impacts to nearby receptors.

Aviation Receptors

Airports need to be confident that solar panels will not distract pilots or air traffic controllers. Assessment therefore look at:

• Air traffic control (ATC) personnel
• Pilots on final approach
• Other pilots in the area, such as those flying circuits, taxiing, or operating helicopters

We check whether solar reflections could be seen, how bright they might be, and where they would appear from the observer’s point of view.

Roads and Dwellings

Road safety and residential amenity are important considerations. Key receptors are:

• Drivers on regional or national roads within 1 km
• Homes within 1 km of the development
• Public footpaths and other places where people may be affected

For drivers, we assess whether solar reflections could be distracting. For residents, we also consider how long any glare might last, since people at home are usually in fixed positions.

Railway Operators

Railway safety assessments focus on:

• Train drivers on lines next to proposed solar panels
• Railway signals near proposed panels

Impacts are determined by whether reflections are predicted and their position relative to the observer.

How We Support Your Project

With over 1,600 glint and glare assessments completed worldwide, Pager Power brings extensive experience to every project. Our reports provide comprehensive analysis of all relevant receptors, including aviation, transport, and neighbouring properties. We use our own industry-leading guidance, aligned with current best practice, to ensure each assessment is technically robust and planning-compliant.

Most importantly, our reports are written with clarity in mind — presenting modelling results alongside clear explanations and visuals. This makes outcomes and recommendations accessible to planners, consultees, and other stakeholders, helping your project progress smoothly.

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