All,
Good morning I am looking to get some clarification based on a few items I will lay out below. We are looking into installing a ground mount array at my home in Middle TN with an AIO inverter & battery backup. After some lengthy research and communication with my local power company it seems Grid-Tie is just not something I want to tango with in my area. (See attached documentation that I would have to endure). Based on my lengthy research I believe a diy Off-Grid is the best option. My questions are mainly based on the permitting documentation and passing inspection without grid interconnectivity. Also, what is the best way to wire in the following equipment to meet NEC and local Power Utility code without back feeding the grid.
1. AIO will be EG4 Powerpro ESS w/ 2 batteries
2. Ground Mount Solar array with Canadian Solar CS6W-MBAG-535 Bifacials Qty (35) so total array KW = 18.725
*Estimated wire run to AIO is 300' maximum based on where I have to trench*
3. Snap Rack by APA at 30 Degree Angle per zip 37174
Behind Ground Mount will be reflective white rock surface.
Home is not in a HOA and have plenty of room to put in array due south facing. I have contacted a Solar Permitting company and the Ground Mount will be PE stamped per my regional seismic, wind and IBC related regulations.
All equipment was selected based on current and estimated future KWH usage with an EV in the future. Hoping to be able to draw from the Grid when needed to top off batteries or supplement power but have 0 connection for output to grid. Also, if anyone has a recommendation for an electrician that may be willing to help I'm all ears.
Good morning I am looking to get some clarification based on a few items I will lay out below. We are looking into installing a ground mount array at my home in Middle TN with an AIO inverter & battery backup. After some lengthy research and communication with my local power company it seems Grid-Tie is just not something I want to tango with in my area. (See attached documentation that I would have to endure). Based on my lengthy research I believe a diy Off-Grid is the best option. My questions are mainly based on the permitting documentation and passing inspection without grid interconnectivity. Also, what is the best way to wire in the following equipment to meet NEC and local Power Utility code without back feeding the grid.
1. AIO will be EG4 Powerpro ESS w/ 2 batteries
2. Ground Mount Solar array with Canadian Solar CS6W-MBAG-535 Bifacials Qty (35) so total array KW = 18.725
*Estimated wire run to AIO is 300' maximum based on where I have to trench*
3. Snap Rack by APA at 30 Degree Angle per zip 37174
Behind Ground Mount will be reflective white rock surface.
Home is not in a HOA and have plenty of room to put in array due south facing. I have contacted a Solar Permitting company and the Ground Mount will be PE stamped per my regional seismic, wind and IBC related regulations.
All equipment was selected based on current and estimated future KWH usage with an EV in the future. Hoping to be able to draw from the Grid when needed to top off batteries or supplement power but have 0 connection for output to grid. Also, if anyone has a recommendation for an electrician that may be willing to help I'm all ears.
Attachments
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1 CPWS Renewable or Backup Generation requirements Overview 010121.pdf138.5 KB · Views: 4
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2 CPWS Renewable or Backup Generation Connection Request 010121.pdf164.6 KB · Views: 3
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3 Renewable or Backup Generation CPWS Policy and Procedure Statement for distribution 2021.pdf94.8 KB · Views: 3
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4 CPWS DG interconnect and Parallel agreement 01012021.pdf216.8 KB · Views: 4
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5a CPWS Generation Interconnection_Application_Tier 1 Form 022020.pdf129.3 KB · Views: 3
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5b CPWS Generation Interconnection Application Tier2. Form 022020a.pdf152.9 KB · Views: 2
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6 CPWS Generation site Certificate of Completion Form 012721 BP.pdf240.4 KB · Views: 2
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7 CPWS Generation System Acceptance Form 012721b.pdf512.1 KB · Views: 2
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GENERATION 3 PH DETAILGS3P 012721.pdf63.3 KB · Views: 2
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GENERATION DETAILGS1P 012721.pdf61.6 KB · Views: 2