Tujunga, Los Angeles, CA · April – May 2025 · LADWP / LADBS
A final two days after the install, and PTO thirteen days after that
Thirteen 540 W modules with a microinverter under each, installed in one day. The city signed off two days later, and the utility authorized the system to operate thirteen days after that.
This Tujunga installation is 7.02 kW DC: thirteen Canadian Solar 540 W modules, each with an Enphase IQ8HC microinverter, on a composition shingle roof. Cali Energy installed it on 22 April 2025, the LADBS final inspection was passed on 24 April, and LADWP authorized permission to operate on 7 May, nineteen days after the permit was issued.
At a glance
- System
- 7.02 kW DC
- Modules
- 13 × Canadian Solar CS6W-540MB-AG, 540 W
- Microinverters
- Enphase IQ8HC, two branches of 7 and 6
- Installed
- 22 April 2025, in one day
- Final passed
- 24 April 2025
- LADWP permission to operate
- 7 May 2025
The story
The LADBS permit was issued on Friday 18 April 2025. On the Monday the installation was booked for the next day, with the materials delivered to the house that morning, and the system went on the roof on Tuesday 22 April.
It is thirteen Canadian Solar 540 W modules, 7.02 kW DC, laid out as a long row of nine with two modules running down from each end. Each module has an Enphase IQ8HC microinverter under it, wired in two branches of seven and six to an Enphase IQ Combiner 5 on the wall.
Every mount went through the shingle the same way: a ring of sealant around the drilled hole and a second ring around the area the base covers, then a flashed mount with its plate under the shingle course above.
The final inspection was requested the next day for Thursday 24 April, with an inspection window of one to three in the afternoon and the gate left open for the inspector. The final was passed that day, two days after the install.
The utility's part followed. On 7 May LADWP sent its notice that it had authorized permission to operate, and its crew installed the new meter. The system was set up the same day, leaving the homeowner one step, switching the solar breakers on, which Cali Energy took on explaining. From permit to permission to operate, nineteen days.
How it ran
| 18 April 2025 | LADBS permit issued |
|---|---|
| 22 April 2025 | Thirteen modules installed in one day |
| 24 April 2025 | LADBS final inspection passed |
| 7 May 2025 | LADWP authorizes permission to operate; new meter set |
| 7–8 May 2025 | System set up; homeowner shown how to switch it on |
Install to final: two days. Final to PTO: thirteen.
What we did
- Installed the thirteen modules and microinverters in one day.
- Sealed every mount hole before setting the flashed mounts.
- Wired the array in two branches to an IQ Combiner 5.
- Requested the final the day after the install and met the inspector.
- Set the system up once LADWP authorized it and the meter was in.
System specifications
| Modules | 13 × Canadian Solar CS6W-540MB-AG, 540 W |
|---|---|
| System size | 7.02 kW DC |
| Microinverters | Enphase IQ8HC, one per module |
| Combiner | Enphase IQ Combiner 5 |
| Mounting | Flashed mounts on composition shingle, sealed at each hole |
| Utility / AHJ | LADWP / LADBS |
Is your project like this one?
- You want to know how long Tujunga solar takes from permit to PTO.
- You are planning a system of around seven kilowatts.
- You want a microinverter under every module.
- You have a composition shingle roof.
Cali Energy in Tujunga
Tujunga is a neighborhood inside the City of Los Angeles: permits run through LADBS, interconnection through LADWP.
Tujunga sits in the foothills at the north-east edge of the City of Los Angeles, so its permits come from LADBS and its grid connection from LADWP. After the city's final inspection, the utility still has to authorize the system before it can run.
- License and classifications: CSLB #1032379
- Official reference for this process: LADWP interconnection requirements
- Official reference for this process: Enphase — installer documentation
Frequently asked questions
How long did this Tujunga system take from permit to PTO?
Nineteen days. The LADBS permit was issued on 18 April 2025, the system was installed on 22 April, the final inspection was passed on 24 April, and LADWP authorized permission to operate on 7 May, when its crew also set the new meter.
What equipment is in this Tujunga system?
Thirteen Canadian Solar CS6W-540MB-AG modules rated 540 W, 7.02 kW DC, each with an Enphase IQ8HC microinverter. They are wired in two branches of seven and six to an Enphase IQ Combiner 5 on the wall.
What happened after LADWP authorized permission to operate?
LADWP's crew installed the new meter, and the system was set up the same day. The one step left was for the homeowner to switch the solar breakers on, and Cali Energy took on explaining how.
Does Cali Energy install solar in Tujunga?
Yes. Tujunga is inside the City of Los Angeles, so permits run through LADBS and interconnection through LADWP. Cali Energy installs here on the foothill streets, books the final inspection after the install and sets the system up once the utility authorizes it. License CSLB #1032379.
What this would look like on your roof
Planning solar in Tujunga? Tell us your utility, your roof and what your bill looks like now, and we will model what a system like this would do on your house before you commit to anything.
Or call +1 (323) 844-7777 · Cali Energy, Northridge · CSLB #1032379 (B, C-10, C-39) — design, permits, install and electrical under one licensed contractor.
Related
Updated October 2026.