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Quick Guide: PV Solar Verification for the installer |
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What you'll need: |
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Helpful Information |
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-Copy of CF-1R-PV |
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+Generated
by
NSHP Calculator |
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-Blank CF-6R-PV |
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+Download
CF-6R-PV |
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-Compass |
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+Must
adjust for magnetic declination |
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-Digital Level & tripod
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+Both
available at Sears.com |
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-Thermometer |
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+Needs to measure ambient temp. |
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-Pyronometer |
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+Such
as
DayStar |
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-Shade analysis tool
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+SolarPathfinder.com
&
SolmetricSunEye |
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-Tape Measure |
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+Standard tape measure |
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NSHP PV
Verification Process |
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Visual
Inspection/Verification |
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Helpful Information |
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-Verify equipment model
#'s |
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-Match field model #'s
to CF-1R-PV |
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-Check if
California Flexible Install |
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-150° - 270°, 4:12 -
7:12 |
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-Verify array tilt &
azimuth |
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-Use compass and level |
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Performance Diagnostics |
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-Measure solar
irradiance |
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-Use Pyronometer |
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-Measure ambient
temp in the shade |
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-Use Thermometer |
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-Verify output
meets or exceeds FVT |
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-Field Verification
Table from CF-1R-PV |
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Shading
Analysis |
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-Check if minimally
shaded |
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-Minimal shade means 'no
shade'. |
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-Verify 2:1 D/H ratio of
roof obstructions |
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-If roof is causing
shade |
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-Verify D/H ratio or
altitude angle of trees |
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-If trees are an issue |
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-Verify D/H ratio of
existing/planned bldgs |
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-If any planned or
existing buildings exist |
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Documenting on
CF-6R-PV |
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Photovoltaic System |
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A. Fill in Meter Model
Number or write 'Built into Inverter' in box |
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B. Fill in Inverter Model
Number in appropriate box |
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C. Fill in Module Model
Numbers in appropriate box |
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D. Fill in Series
modules in each string, # of Strings, & Total mods |
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Installation Specifications |
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1. Fill in Azimuth from
compass & write 'Compass' in "Method Used" |
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2. Fill in Roof Pitch or
Tilt of install & write 'Digital Level' in "Method Used" |
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3. Fill in Standoff
Height in appropriate box & "Method Used" ie.
Visual- 4" @ lowest |
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4. Fill in Mounting
Height in box & "Method Used" ie. Visual-
Two Story Home |
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Performance Specifications |
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5. Fill in Solar
Irradiance and "Method Used" ie. Daystar Pyronometer 834
W/m2 |
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6. Fill in Ambient
Temperature and "Method Used" ie. Digital Thermometer 82° |
7. Look up expected
output from FVT by crossing Ambient Temperature and
Solar
Irradiance to determine minimal expected output. Fill
in expected output in
box from the FVT within the CF-1R-PV. |
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8. Fill in watt
output displayed at inverter within 1 minute of taking
irradiance. |
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9. Was Minimal Shading
used on CF-1R-PV, write YES or NO in box. |
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10.If any Existing and planned trees
causing shade, data should be in table. |
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11.If shading exists, check
that it meets the 2:1 distance to height criteria. |
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In-Field Shading Confirmation Table |
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If there are any shading obstructions they should be
listed in the In-Field Shading |
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confirmation table. Use the Solar Pathfinder or SunEye
to verify. |
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Sign & Date - You're finished! |
