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.
Beginning on May 10, 2016, the Solar Glare Hazard Analysis Tool (SGHAT) web application found on this site will be disabled. We are working on a Data Export tool so you can download your existing component data. The technology behind SGHAT (the raw code and algorithms) is now available for licensing from Sandia Laboratories. Interested parties can contact the licensing department. Note that this tech is not a desktop or user-facing version of SGHAT.
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.
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).
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.
Analytically predict the potential impact (e.g. temporary after-image, retinal burn) of observed glare.
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.
Calculate the reflectivity of a receiver using only raw photos and details like location and heliostat characteristics.