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Grid Alternatives 1.4kW installation Lynwood
Grid Alternatives 1.4kW installation Lynwood
This 1.4 kW solar photovoltaic system was installed by Grid Alternatives on 9/19/2009 to 9/20/2009 using a PVPowered PVP2000 (2000w) grid tie inverter, 7 Canadian Solar CS6PE200 (200w) solar panels and Pro Solar mounting hardware on Spanish S-Tile roof.
GRID Alternatives’ mission is to empower communities in need by providing renewable energy and energy efficiency services, equipment and training. Since 2001, GRID Alternatives has been working to bring the power of solar electricity and energy efficiency to low-income homeowners, and to provide community members with training and hands-on experience with renewable energy technologies.
Comment
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Comment by Martin Herzfeld on September 26, 2009 at 10:38pm -
Thanks Deep,
Understand your point. Recall a discussion, also detached accessory structures are different. Think there are also proposed changes for labeling residential.
By the way, what was the size of the backfeed breaker at the point of connection?
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Comment by Deep Patel on September 26, 2009 at 7:43pm -
Hi Martin, I did not design the system, Grid Alternatives selected the components and designed the system, they purchase the modules and inverters according to their budgets. I do see your concern about the PVP2000 not being the optimal selection for 7 CSI 200w modules. All roof penetrations were flashed and sealed using silicon.
The 3 foot wide access pathway only applies when solar panels are installed over living space, since in this particular installation, the solar panels were installed on top of the detached garage the access way rules do not apply.
thanks for the feedback!
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Comment by Martin Herzfeld on September 25, 2009 at 8:08pm
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Although specialize in ground-mounted arrays, would like to discuss methods or comments to further improve the implementation?
International Residential Code for One- and Two-Family Dwellings: Chapter 23 Solar Systems :
http://publicecodes.citation.com/icod/irc/2009/icod_irc_2009_23_sec001_par008.htm
M2301.2.7 Roof and wall penetrations: Roof and wall penetrations shall be flashed and sealed in accordance with Chapter 9 of this code to prevent entry of water, ...
http://www.quickmountpv.com/pdfs/specs/QMCTM_Instal_Specs_small.pdf
What is the thinking with regards to roof penetrations?
With regards to voltage V(mp), on the warmest day at 163 vdc at ~20% > DC minimum Start Voltage. 130V | Range minimum 115V => 7 modules, 8 modules or more better?
http://string.mypvpower.com/
Could have been a potential issue with regards to the CSFM Guidelines, with regard to a three-foot (3’) wide access pathways from the eave to the ridge. The design of the array and the module pattern placement - decorative.
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