Title 24 requires photovoltaic on new dwelling units. It’s required scope, not an upgrade. The decision isn’t whether — it’s how well and by whom.

What we do on a build

1. We read the plans, not a sales script.The architectural roof plan, the electrical sheet and panel schedule, and the CF1R. Roof geometry, equipment, clearances and fire pathways decide what actually fits — before anyone talks about a number.
2. We size each unit against the Title 24 minimum.Per dwelling unit, per meter. Clearing the minimum is the floor, not the goal. We’ll tell you where more capacity earns its cost and where it doesn’t.
3. We bring you a price from the licensed contractor who’d build it.Itemized, so you can see what’s scope and what’s an assumption. If a site visit changes the number, we’d rather revise it down than up.
4. The contractor owns the deferred submittal.They prepare and permit the PV plan set with your AHJ, perform the work, and carry the workmanship warranty. Your contract is with them.
5. We stay with it to permission to operate.Interconnection is its own process, and on a multi-unit project it’s one application per meter. Somebody has to watch it.

What multi-unit changes

A six-unit building isn’t six houses. What moves the price is rarely the panels.

One meter or many.

Separate meters mean separate systems, separate home runs, combiner boxes, and one interconnection application each. A single service changes the design and the cost.

Where the sub panels sit.

Reachable from the roof, the runs are short. If the feeders have to be intercepted at a ganged service wall, that’s a different job. Worth checking before anyone quotes.

Municipal utilities are not SCE.

Pasadena, Glendale, Azusa and others run their own interconnection process, portal, and contractor registration. Assuming otherwise costs schedule.

Flat roofs and rooftop equipment.

Tilt or ballast racking, inter-row spacing, HVAC clearances, fire pathways. What the roof plan implies and what the roof allows aren’t always the same.

Two clocks worth knowing about.

The property-tax exclusion for active solar has a completion deadline, and interconnection timing is outside anyone’s control. Both belong in the schedule conversation early, with your CPA on the tax question.

What we need to give you a real number

Missing pieces are fine. We’ll tell you what a number assumes and what it’s waiting on, rather than quoting past the gaps.

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