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Founded in 2005
Headquarters in Sebastopol, CA
Solmetric provides the solar industry with high quality, easy-to-
use, accurate tools with embedded technical know-how
Topics
• Shade Analysis
– Why measure shade?
– Solmetric SunEye 210 shade analysis tool
– SunEye features, measurements, and data
• System Design
– Estimating PV energy production
– Solmetric PV Designer
– Incorporating SunEye 210 shade
measurements
Why measure shade?
Shading has a disproportionate impact on energy production
Why measure shade?
Shading has a disproportionate impact on energy production
-What’s happening electrically?
Max power point
Cu
rre
nt
Voltage
Isc
Voc Vmp
Imp
I-V curve
Current x Voltage = Power
Shading has a disproportionate impact on energy production
-What’s happening electrically?
Why measure shade?
Max Power Point
Cu
rre
nt
Voltage
Isc
Voc Vmp
Imp
I-V curve
Power Diminished Power due to Shade
I-V Curve for
shaded PV
Why measure shade?
Shading has a disproportionate impact on energy production
Nominal I-V Curve
Actual IV Curve
Actual Power
Why measure shade?
Accurate shade analysis allows for…
• Accurate Energy
Production Estimates
• Effective PV
System Designs
Selling a Financial Model
Why measure shade?
Selling a Financial Model
Homeowner – owned
PV Systems
3RD party ownership and financing
Government Incentives PV System
Performance Guaranty Maturing industry
Installer growth and consolidation
New divisions Need for Competitive
Advantage
Solmetric SunEye 210
SunEye 210 Shade Analysis Tool
• Digital camera with calibrated fisheye lens
• Electronic Compass and Inclinometer
• Worldwide weather data
• Single-Handed Operation
• Rugged, Comfortable Design
• 2 Year Warranty Worldwide
Operating the SunEye
1) Create a Session
New Session for each site visit
Enter a name and a location
2) Capture Skylines
Enter panel azimuth and tilt
Capture multiple Skylines
A) Point South
B) Hold Level
C) Press “Snap”
Capturing Skylines
Live Survey Mode
Capture a skyline…
• Every 10 to 15 feet
• At the height of a module
• At the corners of the design area
• At worst case scenario locations
SunEye Data: SunPath View
Solar Access % of available
insolation after
accounting for shading
Insolation: Solar Energy over
time per unit area in
kWh/m2
SunEye Data: SunPath View
Tilt and Orientation Factor (TOF):
% insolation
available at actual
panel orientation
compared to
optimum orientation
SunEye Data: SunPath View
Total Solar Resource Fraction (TSRF):
% insolation
available, accounting
for both shading
(Solar Access) and
orientation (TOF)
TSRF = Solar Access x TOF
SunEye Data: Monthly Solar Access
Single Skyline Session Average
SunEye Data: Obstruction Elevation View
Solmetric SunEye 210
SunEye 210 Features
• Edit mode to add or remove obstructions
• Integrated GPS Option
• Extension Kit Mode
• Desktop software for use on Windows PC
• Export reports for printing and emailing results
Editing Mode
Simulate…
– Tree trimming
– Tree removal
– Tree growth
– New building
construction
Save as a new
scenario for further
analysis
SunEye 210 GPS
• Integrated internally
• Automatic Session
location
• Records location of
each skyline
• Reports include file
for Google Earth™
SunEye Extension Kit
• Trigger measurements
by rotating the pole
• Automatic correction for
azimuth and tilt
• Ready for the next
measurement in a few
seconds
Make measurements up to 18ft from the ground
Transfer data to computer via USB
• View the data in the same forms as the device
• Easier skyline editing
• Share Sessions with colleagues
• Create reports
• Export files to design tools
• Launch Solmetric PV Designer
Solar Access and Shade Report
Expert Tools as a Competitive Advantage
Sales Person visit
• Preliminary design (Extension Kit)
• Sign contract (1-stop close)
Site analysis team visit
• Effective system design
• Accurate production estimate
• Avoid a change order
Topics
• Shade Analysis
– Why measure shade?
– Solmetric SunEye 210 shade analysis tool
– SunEye features, measurements, and data
• System Design
– Estimating PV energy production
– Solmetric PV Designer
– Incorporating SunEye 210 shade
measurements
PV String Simulation Model
Irradiance, temperature, wind speed, and shading
Module bypass diode configuration
Sun position, panel orientation (tilt and azimuth)
Module parameters
Inverter parameters
String wiring AC KWh
Solmetric PV Designer
World-Wide Weather Data
Massive Module and Inverter Database
Automatic Module Layout and Stringing
Solmetric PV Designer
Arbitrary Roof Shapes
On-roof Obstructions
Setback Distance
Add SunEye Skylines to
generate shade mapping
Solmetric PV Designer
Accurate Production Estimates
Inverter Limit Check
Solmetric PV Designer
Generate Reports
For more information
www.solmetric.com
– Free online tools
– Training videos
– Knowledge base
– Application notes
Contact Solmetric
– Email: [email protected]
– Phone: 1-707-823-4600
– Toll-free: 1-877-263-5026
