SceneryDriver
Senior Member
- Location
- NJ
- Occupation
- Electrical and Automation Designer
Looking for a little advice on a PV system; I'm helping a friend sort through the install proposed by his solar installer. PV is not something I've had much experience with.
Proposed system:
(18) REC REC365AA (2020) Solar panels
(18) ENPHASE IQ7PLUS-72-2-US Inverters
6.57KW DC
A few questions:
1) Any opinions on the recommended panels? They apparently come with a 25yr warranty.
2) Any opinions on the inverters? I've read generally positive opinions on Enphase here, I think.
2) How are micro inverters typically connected to the home's service? I sort of understand AC combiners, I think; pretty much a weatherproof breaker panel that combines the AC outputs of the inverters and sums them into one circuit to be connected to the service, yes? That combiner box is typically located where? The roof, under the array?
3) Whole-house generator was installed with a 200A ATS and 200A service three years ago. The installer was kind enough to leave a j-box in the basement that the service conductors pass through right after they come off the meter outside; they're spliced with 3-position Polaris blocks. The j-box is even labeled "line-side solar tap here." It's line-side of the ATS, so no issue with genny VS inverter interactions. Opinions on line-side taps? He's on the 2020 code - how is the breaker panel for a line side tap treated? Like a service; bond N to G? I know the requirements have changed a lot in recent codes.
Thanks,
SceneryDriver
Proposed system:
(18) REC REC365AA (2020) Solar panels
(18) ENPHASE IQ7PLUS-72-2-US Inverters
6.57KW DC
A few questions:
1) Any opinions on the recommended panels? They apparently come with a 25yr warranty.
2) Any opinions on the inverters? I've read generally positive opinions on Enphase here, I think.
2) How are micro inverters typically connected to the home's service? I sort of understand AC combiners, I think; pretty much a weatherproof breaker panel that combines the AC outputs of the inverters and sums them into one circuit to be connected to the service, yes? That combiner box is typically located where? The roof, under the array?
3) Whole-house generator was installed with a 200A ATS and 200A service three years ago. The installer was kind enough to leave a j-box in the basement that the service conductors pass through right after they come off the meter outside; they're spliced with 3-position Polaris blocks. The j-box is even labeled "line-side solar tap here." It's line-side of the ATS, so no issue with genny VS inverter interactions. Opinions on line-side taps? He's on the 2020 code - how is the breaker panel for a line side tap treated? Like a service; bond N to G? I know the requirements have changed a lot in recent codes.
Thanks,
SceneryDriver