HomeMy WebLinkAboutKYLE AVENUE SOLAR ARRAY - PDP / FDP - FDP180026 - SUBMITTAL DOCUMENTS - ROUND 2 - SUPPORTING DOCUMENTATION1 | P a g e
Solar Glare Analysis Report
Kyle Road Solar
Ground Mount, Single-Axis Tracking
Solar PV System
September 20th, 2018
Primary Contact
Martin Beggs
Commercial PV System Designer
martin.beggs@namastesolar.com
p. 303-447-0300 ext. 273
Headquarters
6707 Winchester Cir
Boulder, CO 80301
Denver Office
888 Federal Blvd
Denver, CO 80204
California Office
1500 Palma Drive, 2
nd
Floor
Ventura, CA 93003
New York Office
122 Main Street
New Paltz, NY 12561
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Table of Contents
1 Executive Summary ...............................................................................................................................................3
1.1 Introduction ........................................................................................................................................................3
1.2 Scope of Services ...............................................................................................................................................3
2 Analysis Software ..................................................................................................................................................3
2.1 Platform and Features .......................................................................................................................................3
2.2 Model Assumptions and Inputs .......................................................................................................................3
3 Findings/Results ....................................................................................................................................................4
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1 Executive Summary
1.1 Introduction
Namaste Solar has conducted a solar glare analysis for the photovoltaic (PV) system that is proposed to
be located at 6422 Kyle Avenue in Fort Collins, CO.
The analysis was performed with software that was designed to evaluate potential glare hazards for solar
PV systems designated for installation near airports and to accommodate Federal Aviation Administration
(FAA) regulations, but can also be used to evaluate glare for solar projects located in other areas.
1.2 Scope of Services
For this work effort, Namaste Solar performed the following activities:
1. Reviewed existing design documentation for the proposed solar PV array at 6422 Kyle Avenue in Fort
Collins, CO to define the specific parameters and information required for the glare analysis.
2. Obtained additional, necessary inputs from other parties to complete the glare analysis ((e.g.
module manufacturer specification information).
3. Performed analysis with a 3rd party software that is based on former Sandia Lab SGHT technology.
4. Provided limited commentary on design assumptions and analysis results.
2 Analysis Software
2.1 Platform and Features
Namaste Solar performed this analysis using ForgeSolar software. This software is based on the R&D 100
Award-winning Solar Glare Hazard Analysis Tool (SGHAT) software, which was developed jointly with
Sandia National Laboratories. ForgeSolar software was specifically designed to accommodate FAA
requirements, but can also be used for sites located away from airports.
2.2 Model Assumptions and Inputs
The solar glare analysis significant assumptions and input information used in the ForgeSolar software are
summarized below in Table 2-1.
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3 Findings/Results
The results of the solar glare analysis for the proposed PV system to be located on the ground at 6422 Kyle
Avenue in Fort Collins are included on the pages below. The primary result is that no glare is predicted at any of
the five observation points defined on page 1 of the report by numbered markers. For reference, ‘Green glare’ is
defined by ForgeSolar as glare with low potential for temporary after-image and ‘Yellow glare’ is defined as glare
with the potential for temporary after-image.
Parameter Unit Value Notes
PV System
Axis Tracking Intended solar panel racking modality
Tracking Axis
Orientation Degrees 180 Default value for single-axis tracker systems
Tracking Axis
Tilt Degrees 0 Typical value for single-axis tracking
PV System
Maximum
tracking angle Degrees 52 Typical value for single-axis tracking
Resting angle Degrees 52 Typical value for single-axis tracking
Panel Surface
Material: Input corresponds with specified PV module
Reflectivity ForgeSolar software default value
Slope Error ForgeSolar software default value
PV system
height above
ground: ft 5.5 Typical height of center of tracking axis
Height of
Observation
Points: ft 5.5 Typical height or person at eye level
Table 2-1 Glare Analysis Model Inputs
Smooth glass with anti-
reflective coating (ARC)
Varies with incidence angle /
sun position
Coorelate with module
surface type
Single-axis tracker
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