EV Charger Upgrades in Rohnert Park & Sonoma County
Real guidance on adding a second charger, more amps, or smart features — sized to what you actually need, from a licensed local electrical contractor.
Why Sonoma County Businesses Call Bright Right First
- We help you figure out which upgrade you actually need — more amps, a second charger, or smart features are three different projects, not one.
- We check your panel's real headroom before assuming you need a full panel upgrade — load sharing can often be the smarter, more affordable answer.
- Licensed, insured, and available 24/7 — call (707) 791-5552 any time your project needs an electrician on-site.
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EV Charger Upgrades
Why Rohnert Park Chooses Bright Right Electric
- Local, family-owned electrical contractor based right in Rohnert Park — not a call center routing you to a subcontractor.
- Straightforward answers on what your upgrade actually requires, sized to your real needs rather than the biggest possible job.
- CSLB-licensed (#1156335) and available around the clock for anything that comes up along the way.
EV Charger Upgrades
What Is an EV Charger Upgrade?
An EV charger upgrade covers any project that expands or improves an existing home charging setup — and it usually means one of four distinct things: upgrading to higher amperage for faster charging, adding a second charger for a multi-EV household, replacing an older charger with a smart or networked model, or a full panel upgrade when the electrical service itself needs more capacity. Most homeowners searching for an "upgrade" actually want one of these specifically, and figuring out which one matters — the right fix for a second-EV household is very different from the right fix for wanting faster charging on the car you already have.
Bright Right Electric handles all four paths, starting with a load calculation to determine what your home's panel can actually support, as a CSLB-licensed electrical contractor (#1156335) based right in Rohnert Park.
EV Charger Upgrades
Our Process
An upgrade project moves through the same core stages:
01
Needs Assessment
We talk through what you're actually trying to solve: faster charging, a second EV, smart features, or all of the above.
02
Load Calculation
We check your panel's real available capacity, not just its rated size, since a fully-loaded home often has less headroom than expected.
03
Path Selection
Based on the assessment, we recommend the right approach: a higher-amp circuit, a load-sharing system, a second dedicated circuit, or a panel upgrade if genuinely needed.
04
Permitting
A licensed electrical contractor pulls the required permit before installation begins.
05
Installation & Testing
We install the upgrade and test it through a full charging cycle to confirm it's working as expected.
06
Ongoing Support
We're available for future maintenance or repair needs, 24/7.
EV Charger Upgrades
How Much Does an EV Charger Upgrade Cost?
It depends entirely on which type of upgrade you need — these are genuinely different projects with different cost profiles, not one line item.
- Higher-amperage circuit upgrade (e.g., 40A to 48A): generally the most affordable upgrade path, mainly labor and materials for the circuit change
- Second charger with load sharing: adds a charger and a load-sharing system that splits capacity between both units
- Second fully separate circuit: more expensive than load sharing, but allows both vehicles to charge at full speed simultaneously
- Smart/networked charger swap: cost is mainly the charger hardware itself, since the existing circuit is often reusable
- Full panel upgrade (if genuinely needed): the most significant cost, but not always required — see below.
EV Charger Upgrades
Upgrading for a Second EV: What Actually Works
This is the most common reason homeowners look into an upgrade, and it doesn't always require a second full circuit. Load-sharing systems let two chargers share the capacity of a single circuit — when only one car is charging, it gets full power; when both are charging at once, the system splits the available amperage between them. As a real example: a 50-amp circuit feeding two load-sharing chargers might give each roughly 24 amps during simultaneous charging — enough for meaningful overnight range on both vehicles — while either car gets the full 40-amp circuit when charging alone.
A fully separate second circuit is the alternative — more electrical work and typically a higher cost, but it means both vehicles can charge at full speed at the same time, with no sharing involved. Which one makes sense depends on your panel's available capacity and how often both cars will realistically need to charge simultaneously.
EV Charger Upgrades
Load Sharing vs. a Second Full Circuit
Here's an honest comparison for a two-EV household:
| Load-Sharing System | Second Full Circuit | |
|---|---|---|
| Electrical work required | Compatible chargers on one existing or new circuit | A fully separate dedicated circuit |
| Simultaneous charging speed | Shared capacity — each charger gets a portion when both are active | Both chargers charge at full speed at the same time |
| Typical cost | Generally lower than a second full circuit | Generally higher, more electrical work involved |
| Best fit | Households where simultaneous full-speed charging isn’t essential | Households that regularly need both cars charging at full speed together |
For most two-EV households, overnight charging means both cars have hours to charge regardless of shared capacity — so load sharing is often the more cost-effective answer. A second full circuit makes more sense if your household genuinely needs both vehicles topped up fast, back to back.
EV Charger Upgrades
Does Your Panel Actually Have Room? A Reality Check
A 200-amp panel sounds like plenty of capacity, but it often isn't as roomy as it seems. A typical home already running an electric range, dryer, water heater, and central air conditioning can be using somewhere in the range of 80–120 amps of that 200-amp capacity before an EV charger is even added. That's exactly why a real load calculation — not an assumption based on your panel's rated size — is the first step of any upgrade, and exactly why load management or circuit-sharing solutions exist: they let you add capacity without needing to find headroom that might not actually be there.
EV Charger Upgrades
A Word on Not Over-Upgrading
It's worth saying plainly: bigger isn't always better. A higher-amp charger doesn't charge your car any faster than your vehicle's onboard charger can actually accept — so paying for more capacity than your EV can use, or than your driving habits genuinely require, doesn't add real value. We'll size the upgrade to what you actually need, not the maximum possible.
EV Charger Upgrades
What's Included
An upgrade project can touch a few related pieces of work, each with its own dedicated page for more detail:
EV Charger Circuit Installation
EV charger circuit installation covers the dedicated circuit work behind a higher-amperage upgrade or a second full circuit, sized correctly to your charger and panel.
Panel Upgrades
Panel upgrades cover replacing an undersized electrical panel when a load calculation shows your home genuinely needs more total capacity, not just a smarter way to share what you have.
SPAN Energy Management
SPAN energy management covers smart panel technology that can help manage EV charging alongside your home's other electrical loads — worth exploring as an alternative to a traditional panel upgrade.
Level 2 EV Charger Installation
Level 2 EV charger installation covers adding a second charger for a growing household, paired with either a load-sharing system or a fully separate circuit.
EV Charger Maintenance
EV charger maintenance covers the ongoing care that keeps your upgraded setup reliable — worth scheduling once your new capacity or second charger is in place.
EV Charger Repair
EV charger repair covers diagnosing and fixing an aging charger — sometimes the reason for an upgrade is replacing a charger that's become unreliable rather than needing more capacity.
EV Charger Upgrades
Why Choose Bright Right Electric
We figure out which upgrade you actually need first.
More amps, a second charger, smart features, or a panel upgrade are four different projects — we help you identify the right one instead of assuming the biggest job is the answer.
We check your panel's real headroom before recommending anything.
A 200-amp panel doesn't always mean 200 amps of usable room. A real load calculation tells us what your home can actually support.
We won't sell you more capacity than you need.
Your car's onboard charger sets a real limit on how much power it can use — we size the upgrade to your actual needs, not the maximum possible.
We're licensed, insured, and available 24/7.
As a CSLB-licensed contractor (#1156335), we're reachable at (707) 791-5552 any time your project needs an electrician on-site.
08 ─────── Reviews
What Rohnert Park Customers Are Saying
"This is the most professional company I have ever worked with. I am a difficult person and hard to please (I have really high standards (as a retired science teacher) and I am skeptical of workmen and I'm a perfectionist!). Bright Right is currently working on the 3rd job I have hired them for – everything has gone smoothly, no stress at all!!! They are so friendly and so courteous. Rick and Dustin are an effective team with their two unique personalities – both very upbeat, serious, and kind. They explain everything in detail and answer all my questions (I am hyper-concerned about my property), and they are basically experienced, conscientious electricians you can trust."
— Nora Parker · Google Review
"I recently hired Dustin for some electrical work at my home, and I couldn't be happier with the results. He installed a high-quality bathroom fan, finished installing several outlets around the house, and completed a new electrical panel installation. From start to finish, Dustin was professional, knowledgeable, and clearly takes pride in doing the job right. The new panel installation was the bigger job, and Dustin handled it with real expertise. Everything was organized, labeled, and done to a very high standard, which gave me a lot of confidence in the safety and quality of the work."
— Google Review
"Bright Right did the electrical for our kitchen remodel and we couldn't be happier, we have since then added an EV with them and they were as good as the first time. Highly recommend!"
— Joey Evans · Google Review
"Shout out to Dustin Fildes, the electrician they sent to do the work at my house. You can tell he takes pride in his work. He's a very professional and very friendly. Individual would absolutely recommend Bright Right Electric and specifically Dustin to all my family and friends. Thank you Bright Right"
— Robert Horner, Google Review
Google Business Profile
5.0
Across 27 Google reviews
EV Charger Upgrades
Serving Rohnert Park and the Greater North Bay
Bright Right Electric provides commercial and tenant improvement electrical throughout Rohnert Park — offices, retail, and restaurants along the Commerce Boulevard and Redwood Drive corridors, and businesses near Sonoma State University and the University District — and out to Cotati, Penngrove, Petaluma, Santa Rosa, Sebastopol, Windsor, Healdsburg, Sonoma, and Cloverdale. Coverage extends into Marin County (San Rafael, Novato, Mill Valley, Sausalito, Larkspur, Corte Madera, San Anselmo, Fairfax, and Tiburon) and Napa County, including wineries, tasting rooms, and hospitality projects. If your property isn't listed, call anyway — the answer is usually yes.
Questions
Frequently Asked Questions
How do I upgrade my home EV charger for a second car?
There are two main approaches: adding a fully separate second dedicated circuit, or installing a load-sharing system that lets two chargers split the capacity of one existing circuit. A load-sharing setup dynamically allocates available amperage between both chargers based on which are actively charging.
Do I need a second circuit for two EV chargers?
Not necessarily. A load-sharing or load-management system can let two chargers operate on a single existing circuit, splitting available capacity between them when both are in use — a fully separate circuit does allow both vehicles to charge at full speed simultaneously, but at a higher cost.
What is load sharing for EV chargers?
Load sharing is a system that lets two or more chargers share the available capacity of a single electrical circuit. When only one charger is active, it gets the full circuit's power; when multiple are active at once, the system splits the available amperage between them.
How much does it cost to upgrade an EV charger?
It depends on which type of upgrade is needed — a higher-amperage circuit change, a second charger with load sharing, a fully separate second circuit, a smart charger swap, and a full panel upgrade all have different cost profiles.
Can I upgrade my EV charger without a panel upgrade?
Often, yes. Load management or circuit-sharing devices can let many homes add EV charging capacity without a full panel upgrade. A load calculation determines whether a specific home's panel has the headroom needed, or whether load management is the better path.
Load sharing vs. separate circuits for two EV chargers — which is better?
It depends on your household's charging needs. Load sharing is generally more affordable and works well when both cars have plenty of overnight time to charge. A second full circuit costs more but lets both vehicles charge at full speed simultaneously.
How do I know if my charger's amperage is enough?
It depends on your vehicle's onboard charger, which sets a real limit on how much power it can accept — a higher-amp charger doesn't charge faster if your car can't use the extra amperage, so the right amperage is based on your specific EV and driving habits.
Can I upgrade to a smart or networked EV charger?
Yes — replacing an older charger with a smart or networked model is a legitimate upgrade on its own, separate from needing more amperage, and often reuses your existing circuit.
Does my 200 amp panel have room for a second EV charger?
Not automatically. A typical home already running an electric range, dryer, water heater, and central air conditioning can be using 80–120 amps of a 200-amp panel's capacity before any EV charging load is added — a load calculation determines the actual available headroom.
What's the difference between upgrading amperage and adding a second charger?
Upgrading amperage means increasing the power delivered to an existing charger for faster charging on the vehicle you already have. Adding a second charger is a separate project for households with more than one EV, and can be done with a load-sharing system or a fully separate circuit.
Get in touch
Ready to Get Started?
Call (707) 791-5552 any time, day or night, or fill out the quote form below and we'll get back to you.
Phone
(707) 791-5552
(tap to call)
Address
1150 Holly Ave, Rohnert Park, CA 94928
Hours
7am - 5pm & 24 hour emergency services available.
15 ─────── Full service detail
Electrical Panel Upgrades in Rohnert Park
Replacing an undersized or obsolete panel is the most common job we perform in Rohnert Park, and it's the one that unlocks everything else. If your home still runs original 100-amp service, a Federal Pacific Stab-Lok, or a Zinsco panel, you're working with equipment engineered for a much smaller electrical load — and, in the case of those two brands, with a documented history of breakers that fail to trip. Upgrading to 200-amp service makes EV charging, battery backup, heat pumps, and modern appliance loads possible without constantly tripping breakers. We size the new service to what your household actually needs, pull the permit, coordinate the PG&E disconnect and reconnect, and meet the inspector for final sign-off.
EV Charger Installation in Sonoma County
Bright Right installs Level 2 home charging sized to your vehicle and, just as importantly, to your panel's actual available capacity. We run the dedicated 240-volt circuit, mount and commission the charger, and handle the permit — installing Tesla Wall Connectors, universal J1772 and NACS units, and hardwired or plug-in setups across Rohnert Park, Petaluma, and Santa Rosa. The detail most homeowners don't hear until it's too late is that many Sonoma County panels can't support a Level 2 charger without a service upgrade first, so we run a load calculation before you buy equipment, not after. We can also pre-wire a second circuit if a second EV is anywhere in your future.
Standby Generators & Backup Power
Public safety power shutoffs are a fact of life in Sonoma County, and so are winter storms that take lines down in the hills. We install whole-house standby generators with automatic transfer switches that pick up the house within seconds of an outage, wire inlets and manual transfer switches for portable generators, and add whole-house surge protection so your equipment isn't damaged when the utility comes back online. We'll also tell you honestly which tier makes sense — not every home in Cotati or Penngrove needs a whole-house unit when a critical-loads panel that keeps the refrigerator, well pump, internet, and a few circuits alive costs a fraction as much.
Solar & Battery Systems
We handle new photovoltaic installation, battery storage, system additions, and remove-and-replace work when a roof needs attention or a system has failed — plus service on existing arrays that aren't producing what they should. If you inherited a solar system with the house and nobody can tell you how it's wired or whether it's still under warranty, we can assess it and give you a clear picture. Battery storage in particular has changed the math for Sonoma County homeowners: between shifting utility rate structures under NEM 3.0 and the frequency of outages, a battery paired with existing solar is often a better investment than adding more panels.
Interior & Exterior Lighting
Recessed and can lighting, full LED retrofits, under-cabinet lighting, dimmer and smart-switch installation, fixture and chandelier hanging, landscape lighting, and security and motion-sensor lighting for homes across Rohnert Park and the University District. On the commercial side we handle lighting retrofits for offices, retail spaces, and warehouses along the Commerce Boulevard corridor, including the fixture and control changes that come with California Title 24 compliance. Lighting is one of the few electrical upgrades where the difference is immediately visible, and it's frequently the cheapest way to make a dated room feel finished.
Electrical Troubleshooting & Repair
Breakers that trip for no obvious reason, circuits that go dead, lights that flicker when the dryer starts, outlets that no longer hold a plug, GFCIs that won't reset, a faint burning smell you can't locate. These are the calls where experience shows. We trace a fault to its real source instead of swapping parts and billing for guesses, which is why our repairs hold and why we get called in behind other contractors who couldn't find the problem. In older Sonoma County homes the cause is often a failing backstab connection, a corroded neutral, a rodent-damaged run in a crawlspace, or a decades-old junction box buried behind drywall.
Custom Homes & New Construction
Full electrical for ground-up residential builds, major remodels, and additions throughout Sonoma, Marin, and Napa County — load calculations and plan review, service and meter setup, rough-in, trim, and final inspection. We work with general contractors, designers, and owner-builders, and we're comfortable on high-end custom projects near Sonoma State University where the lighting design, low-voltage layout, and smart controls all have to be coordinated before a single wire goes in. Getting the details right at rough-in is what keeps a home safe and functional for the next forty years — and it's far cheaper than fixing it after the drywall is up.
Commercial Electrical & Tenant Improvement
Service upgrades, panel and subpanel work, dedicated circuits for equipment, lighting retrofits, EV charging for employee and customer parking, and full tenant-improvement electrical for offices, retail, restaurants, and light industrial space along Redwood Drive and beyond. We understand a commercial job runs on someone else's schedule, so we work around business hours when the scope requires it. From a single dedicated circuit to a complete build-out, you get one licensed contractor coordinating permits, PG&E, and inspection — with clear pricing and a clean, code-compliant result.