Electrician in Vacaville: Panels, Solar Tie-Ins, EV Chargers

The work

Electrical work the city's own checklists describe

A main panel change-out alongside rooftop solar
Vacaville issues residential rooftop solar permits of any kilowatt size online, and the permit automatically covers a main panel change-out if the owner wants one. The city warns that refunds are generally not available for solar permits issued online, so settle the panel question before applying. The line diagram lists the main service amperage, any subpanel, the main overcurrent device and the new breaker sizes, and needs load calculations if the main breaker is being derated.
Upsizing the electrical service
The Residential Service Equipment Checklist sets the city's thresholds: a service of 250 amps or more requires an AIC letter on available fault current, and 400 amps or multiple meters send the job to city plan check. A single-family service disconnect must be at least 100 amps and three wires, sit in a readily accessible spot outside or at the nearest point inside, never in a bathroom, with clear working space 30 inches wide and 36 inches deep.
A dedicated circuit for an EV charger
Residential EV chargers sit on the city's shortest review track, with a first review within two working days and up to ten for resubmittals. The charger circuit is new wiring, so it needs a permit and a C-10 contractor, and the load calculation decides whether it fits on the existing service. In a 1970s or 1980s house, ask early whether the charger, a future heat pump and the air conditioner can share the panel.
Wiring for a heat pump or electric water heater
The city's water heater checklist asks for an electric unit to have a labeled disconnect in sight of it and clearly visible, with the breaker and conductors rated at no less than 125 percent of the nameplate. Even the residential handout written for gas tank heaters calls for a 120-volt receptacle within three feet of the heater, accessible with nothing in the way.
Ground-mounted arrays and buried conductors
For a solar array set in the yard, the city's submittal list asks for an engineered foundation plan and notes that Vacaville has highly expansive soils, so footings are designed for them. The underground run is inspected under the service checklist: burial depth by the code table, a warning ribbon 12 inches above the conductors in the trench, and protection for conductors exposed up to eight feet above grade.

Will H. Buck House, a gray Queen Anne Victorian with bay windows, a porch with arches and front stairs, on Buck Avenue in Vacaville. Photo: Sanfranman59, CC BY-SA 3.0, via Wikimedia Commons.

The houses here

Seventies and eighties panels meeting today's loads

Vacaville's biggest building decade was the 1970s, when 8,624 of today's homes went up, followed by 7,262 in the 1980s and 6,598 in the 1990s, according to the American Community Survey figures in the city's Housing Element. Panels from those decades are now being asked to take rooftop solar, heat pumps and garage chargers, and the city's solar checklist shows what an old panel has to prove at plan check. The line diagram must give the nameplate bus bar rating, and where that label has worn away, the panel needs a recertification letter from a registered third party such as UL, or replacement as part of the job.

Free request

Describe the electrical job once. Local pros who take work in Vacaville reply by call or text.

No fee to request, and no obligation to hire
You agree scope and price with the pro you choose
Photos help them quote without a first visit

Get quotes for electrical work in Vacaville

Two short steps. A local pro who takes this work calls or texts you back.

To send a request, call or text (415) 449-8213.

Free to request, and you agree the scope and price with the person you hire before work starts. In California, a job over $1,000 in labor and materials, or one that needs a building permit, must be done by a contractor licensed by the CSLB in the right class. Ask for the license number and check it at cslb.ca.gov.

Permits and local rules

City checklists an electrician here works from

Residential Photovoltaic Submittal Requirements
Before applying, the applicant must confirm the roof can carry the array and that the existing line, load, ground and bond wiring, main panel and subpanels can take the new photovoltaic load. Roof plans show panel locations, setbacks from edges, ridges, valleys and second-story windows, and the roof wind zones. The city also observes the setbacks in Cal Fire's Solar Photovoltaic Installation Guidelines, and rail spans must meet Vacaville's own wind load requirements.
Source: City of Vacaville Building Division (cityofvacaville.gov)
Residential Service Equipment Checklist
Written against the 2022 California Electrical Code and the city's municipal code, the checklist covers service-drop clearances over driveways, roofs and decks, one service per building, a separate grounding electrode system for each building, breakers matching the panel's manufacturer, and a legible directory marking what every breaker serves. It also lists the 250-amp AIC letter and the 400-amp plan check trigger.
Source: City of Vacaville Building Division (cityofvacaville.gov)

State license for this work: C-10 Electrical. Look up a contractor's license on the CSLB website (cslb.ca.gov).

Before you hire

What to ask a Vacaville electrician before signing

Will the main panel change-out ride on the online solar permit, or go in as a separate permit?
Can you read the panel's nameplate bus bar rating, and if the label is gone, will you get a recertification letter or replace the panel?
For a 250-amp or larger service, who requests the AIC letter, and will the design need city plan check?
Will your load calculation show the charger, the air conditioner and any heat pump on the panel together?
Is your C-10 Electrical license active on cslb.ca.gov under the same business name as the contract?

Questions

Panel, solar and charger questions in Vacaville

Can our Vacaville solar permit cover a new main panel too?

Yes. The city issues residential rooftop solar permits of any size online, and a solar permit automatically includes a main panel change-out if one is wanted. Decide before you apply, since refunds are generally not available for solar permits issued online. A C-10 contractor's load calculation shows whether the existing panel would do.

The label inside our panel is unreadable. Will that hold up solar?

It can. Vacaville's solar submittal list requires the nameplate bus bar rating on the line diagram. Where that rating is no longer available, the plans need a letter from a registered third party such as UL confirming its evaluation and recertification of the panel, or the service panel can be replaced as part of the same job.

Do we buy power from PG&E or MCE in Vacaville?

PG&E. MCE lists Fairfield, Benicia, Vallejo and unincorporated Solano County among the communities it serves, but not Vacaville, so PG&E both supplies and delivers the electricity here. It is also the utility an electrician coordinates with when a service is disconnected, reconnected or upsized.

Does a bigger electrical service in Vacaville need more than a permit?

Sometimes. The city's service checklist asks for an AIC letter on available fault current once a service reaches 250 amps, and sends services of 400 amps or more, and any multiple-meter installation, through city plan check. A single-family service disconnect must be at least 100 amps.

Our street is on Cal Fire's new hazard map. Does that change solar on our roof?

The setbacks already apply. Cal Fire's recommended map for Vacaville's local responsibility area reached the city on February 24, 2025, and the zones mostly affect building materials and defensible space. For rooftop solar, the city's submittal rules already apply the setbacks in Cal Fire's Solar Photovoltaic Installation Guidelines to every residential rooftop array, inside a mapped zone or not.

How long does Vacaville take to review a solar or EV charger plan?

The city's published review table gives residential solar and EV charger plans a maximum of two working days for the first review and ten for each resubmittal, with comments sent within three days after every department finishes. Vacaville offers no expedited plan review, and reviews beyond the second plan check carry an hourly fee with a two-hour minimum. A complete first submittal, with the bus bar rating and any load calculation on the line diagram, is what keeps a job on the short track.

Keep exploring

More on electrical work and Vacaville

Other trades in Vacaville

Guides and smaller jobs

Shutoffs and straps: gas, water and power in a San Francisco home

Where this page belongs

Where these facts come from

Checked against these public sources in October 2026. Rules and programs change: confirm permit requirements with the city before work starts, and a contractor's license on the CSLB website.

cityofvacaville.gov: building permits (cityofvacaville.gov)
cityofvacaville.gov: 638158657193100000 (cityofvacaville.gov)
cityofvacaville.gov: 638266757893870000 (cityofvacaville.gov)
cityofvacaville.gov: 639063366467170000 (cityofvacaville.gov)
cityofvacaville.gov: 638266756792000000 (cityofvacaville.gov)
cityofvacaville.gov: showdocument (cityofvacaville.gov)
cityofvacaville.gov: 638371478093130000 (cityofvacaville.gov)
cityofvacaville.gov: local responsibility area fire hazard severity zone update (cityofvacaville.gov)
cityofvacaville.gov: 638853228782200000 (cityofvacaville.gov)
energy.ca.gov: climate zone tool maps and (energy.ca.gov)
energy.ca.gov: BuildingClimateZonesByZIPCode ada (energy.ca.gov)
mcecleanenergy.org: faq

Valley heat, seventies panels and quick solar permits in Vacaville

Electrical work the city's own checklists describe

A main panel change-out alongside rooftop solar

Upsizing the electrical service

A dedicated circuit for an EV charger

Wiring for a heat pump or electric water heater

Ground-mounted arrays and buried conductors