Field guides

Read before you spend. Free, sourced, no email wall.

Long-form answers to the electrical questions Santa Cruz County homeowners actually ask — each one written and reviewed by our licensed C-10 electrician, with primary sources cited.

01·All guides

Every guide we publish. Sourced and signed.

PLANNING READ

Federal Pacific panel replacement

Why FPE Stab-Lok panels are a documented safety issue, how to identify one, and what replacement actually involves. From a licensed C-10 electrician (#C10-1097237).

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Did the federal solar tax credit end in 2026?

Section 25D expired 12/31/2025 — and so did Section 25C. What that means for 2026 solar and battery installs, and how the math works without a federal credit.

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Is solar worth it in Santa Cruz under NEM 3.0?

With a battery, usually yes — 7–9 year payback for most Santa Cruz County homes. The NEM 3.0 export math, self-consumption, and when solar genuinely pencils.

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Knob and Tube Wiring in Santa Cruz Westside Victorians: What It Is, Why It’s Risky, and What to Do

Most Santa Cruz Westside Victorians still have knob and tube wiring behind the walls. What it is, why insurance carriers care, and your rewiring options.

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Will my panel support an EV charger?

Whether your panel can support an EV charger comes down to the dwelling load calculation plus panel condition. The real math, from a licensed C-10 electrician.

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Zinsco panel replacement

Zinsco panels — including 1970s panels labeled Sylvania — can weld breakers to the bus so they can’t trip. How to identify one and what replacement involves.

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Reading the electrical in a 1940s Santa Cruz house

These houses do not have one wiring system, they have four stacked on each other. How to tell the layers apart, and what each one means for what you should do.

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What happened to the $2,600 federal tax credit?

Section 25C ended for work completed after December 31, 2025 — it did not run to 2032. What the credit was, who just missed it, and what is actually left in 2026.

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Why does my breaker keep tripping?

A tripping breaker is a safety device doing its job. The four things that cause it, how to tell which one you have, and the one fix that makes it genuinely dangerous.

WORTH ACTING ON

I smell burning. What do I do?

What to do first if you can smell burning, why the smell stopping does not mean it is fixed, and which smells are harmless. Santa Cruz County electricians.

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Cloth wiring and aluminum branch circuits: what actually needs doing?

Two different problems that get treated as one. Why aluminum at your panel is normal, what the recognised repairs actually are, and when a rewire is not the answer.

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What order should I electrify in?

Size the service for the whole plan first; let life decide the order of the equipment. The sequencing mistakes that cost the most, and how to avoid paying twice.

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Why do my lights flicker?

Flickering is a voltage problem, and where it happens tells you how serious it is. The four levels it can come from, and the pattern that means stop and call.

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Generator or battery for a mountain home?

A battery alone is sized in hours; with solar it recharges daily. Why the well pump usually sizes the system, and when a hybrid is the honest answer.

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Going all-electric in Santa Cruz County: what is actually different here

A mild climate that suits heat pumps unusually well, old houses with small services, and a mountain half of the county with a different problem entirely.

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What a heat-pump water heater needs from your electrical

240V or 120V changes the whole project — including whether you need a panel upgrade at all. What the circuit involves, where the trade boundary sits, and what location decides.

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Induction, a heat pump and an EV charger: will one service carry all three?

Adding up the nameplates badly overstates what the code counts. How a dwelling calculation actually treats the three loads together, and the levers when it still says no.

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Insurance and old wiring: what carriers actually do

Insurers do not require rewiring; they decline to write or renew. How to find out whether it is really your wiring, and why aluminium rarely means a whole-house rewire.

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Sizing a battery under NEM 3: the two goals that fight each other

Economic sizing wants the battery cycling daily; backup wants reserve held. Why bigger is not proportionally better, and why future usage is what you size against.

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You need a panel upgrade for your EV charger. What does that mean?

What is actually in the scope of a panel upgrade, how to compare quotes that are far apart, and why doing the charger at the same time costs less. Santa Cruz County.

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Do I need a permit, and what happens at inspection?

Which authority issues your permit — and why a Live Oak or Aptos address is not a city address. What typically needs a permit, what the inspector checks, and what unpermitted work costs you later.

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Pushmatic, Challenger, Wadsworth: do these panels need replacing?

The obsolete panel brands that are not Federal Pacific or Zinsco. Why the case for replacing them is about parts, split-bus design and age — not failure statistics.

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Do I need to rewire before going electric?

New loads get new circuits, so old wiring is usually not a prerequisite. The four cases where it genuinely is, and why access — not load — links the two jobs.

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Outdoor lighting near the ocean: why it fails and what survives

Salt air attacks fasteners, sockets and gaskets before it touches the finish. Which materials survive, why 316 stainless matters, and the free maintenance that works.

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Smart home in an older house: where do I actually start?

Why your smart switch did not work, the four options when there is no neutral, and what to do first in a house with plaster walls and shallow boxes.

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Smart panel or traditional panel?

What a smart panel genuinely does, the four downsides its marketing skips, and when a conventional panel plus a load-management device does the same job for less.

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When do I need 200-amp service?

A load calculation answers this, not a rule of thumb. What actually pushes a home past 100 amps, what the upgrade involves in Santa Cruz County, and when you genuinely do not need one.

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Wiring a home office: Cat6, power, and what older houses make difficult

Why structured cabling still earns its place, how many drops to run, where the central point goes, and what plaster-and-lath houses change about the cost.

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What happens during a whole-home electrical inspection?

What we look at, how long it takes, what is in the written report, and what an electrical inspection is not. Free for Santa Cruz County homeowners.

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