daikerjohn
New Member
(Typed all this up and lost it. So here's to round two!)
Back in 2019 I had a 15kw system installed atop our riding arena. This included all permits, net metering agreements, parts, labor, installation, et al. Was really happy with the final product.
That system has 44 Longi panels (LR6-72-PE-245M) and 22 AP Systems YC600 micro inverters.
There are four 'strings' of panels on the roof, but each string is 14 panels and 7 inverters... so that last string only has two panels and 1 inverter.
All that runs into a junction box where it's fed back to the panel/meter at the house through #1 THHN and a variety of disconnects, the most important of which is a '100 A/2P Fused Disconnect w/ 70A fuses' (whatever that means).
That lonely fourth string was done that way intentionally to make future upgrades easier/possible.
Well, the future has arrived.
I just received a quote (from the original installer in 2019) for a 4000 watt addition onto that 4th string.
That includes:
10x Jinko JKM400M-72HL-V panels (400 watts)
5x AP Systems DS3-S micro inverters
Racking to mount those panels in landscape orientation on the arena roof. (The arena roof is regular/ribbed barn steel supported with horizontal 2x6s on 2-ft centers. I believe it is a 4/12 pitch. 15ft at the gutters)
Replace 70A fuse with 80A fuse.
I've attached the quote and some notes from the installer. Happy to also scan/attach the original electrical diagram if that is helpful/useful.
The quote was out-of-pocket for $11920.
Is that anywhere close to reasonable?
I'm in Northwest Oregon.
Thanks,
John
Back in 2019 I had a 15kw system installed atop our riding arena. This included all permits, net metering agreements, parts, labor, installation, et al. Was really happy with the final product.
That system has 44 Longi panels (LR6-72-PE-245M) and 22 AP Systems YC600 micro inverters.
There are four 'strings' of panels on the roof, but each string is 14 panels and 7 inverters... so that last string only has two panels and 1 inverter.
All that runs into a junction box where it's fed back to the panel/meter at the house through #1 THHN and a variety of disconnects, the most important of which is a '100 A/2P Fused Disconnect w/ 70A fuses' (whatever that means).
That lonely fourth string was done that way intentionally to make future upgrades easier/possible.
Well, the future has arrived.
I just received a quote (from the original installer in 2019) for a 4000 watt addition onto that 4th string.
That includes:
10x Jinko JKM400M-72HL-V panels (400 watts)
5x AP Systems DS3-S micro inverters
Racking to mount those panels in landscape orientation on the arena roof. (The arena roof is regular/ribbed barn steel supported with horizontal 2x6s on 2-ft centers. I believe it is a 4/12 pitch. 15ft at the gutters)
Replace 70A fuse with 80A fuse.
I've attached the quote and some notes from the installer. Happy to also scan/attach the original electrical diagram if that is helpful/useful.
The quote was out-of-pocket for $11920.
Is that anywhere close to reasonable?
I'm in Northwest Oregon.
Thanks,
John