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Measurement of reflected solar irradiance is receiving significant attention by industry, military, and government agencies to assess potential impacts of glint and glare from growing numbers of solar power installations around the world. In addition, characterization of the incident solar flux distribution on central receivers for concentrating solar power applications is important to monitor and maintain system performance. This website contains tools to evaluate solar glare and receiver irradiance.

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SGHAT Transition

Beginning on May 10, 2016, the Solar Glare Hazard Analysis Tool (SGHAT) web application found on this site will be disabled. You can download your existing data (in JSON format) below. The technology behind SGHAT (the raw code and algorithms) is now available for licensing from Sandia Laboratories. Interested parties can contact the licensing department. Webinars will be held in the coming months. Announcements will be posted soon.

Users seeking to use SGHAT for glare analyses can visit the following licensed SGHAT applications. These sites are available for online usage and include recent SGHAT enhancements and features:

All other tools on this site will remain available. Thank you for your continued support and interest in SGHAT.

Download your data

Solar Glare Hazard Analysis Tool

This tool determines when and where solar glare can occur throughout the year from a user-specified PV array as viewed from user-prescribed observation points. The potential ocular impact from the observed glare is also determined, along with a prediction of the annual energy production. Configurations can be quickly modified (e.g., tilt, orientation, shape, location) to identify a design that mitigates glare while maximizing energy production.

Required by the FAA for glare hazard analyses near airports (78 FR 63276).

SGHAT Requires Internet Explorer 10, Google Chrome or Mozilla Firefox

Empirical Glare Analysis Tool

Empirically quantify glint and glare from reflected light and assess the potential impact (e.g. temporary after-image, retinal burn). No expensive equipment required - just upload photos of the glare and the sun.

Analytical Glare Estimation Tool

Analytically predict the potential impact (e.g. temporary after-image, retinal burn) of observed glare.

PHLUX Mapping Analysis Tool

Empirically determine the irradiance distribution on a central receiver. No flux gauge needed - simply upload photos and fill in the details, and the tool does the rest.

Reflectivity Calculator Tool

Calculate the reflectivity of a receiver using only raw photos and details like location and heliostat characteristics.

Register to access the tools