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(800) 333-6695 | Licensed & Insured · CSLB #964965 | Serving California since 2011
Modern 200-amp main electrical panel upgraded for solar and EV charging
Main Panel Upgrades · California

Upgrade Your Main Panel for Solar and EV

Your electrical panel is the hub your whole home runs through. Upgrade to 200-amp service so it can carry solar, battery storage, EV charging and modern loads safely, permitted and installed by one licensed California team.

$0 Down · 100% Financing· Licensed & Insured · CSLB #964965· Serving California since 2011
The Hub Everything Runs Through

200-Amp Service, Sized for Modern Loads

A panel that can carry solar, batteries and an EV charger safely.

In Short

A main panel upgrade replaces your existing electrical panel with a higher-capacity one, usually 200-amp service. It adds the capacity and dedicated circuit slots that solar inverters, battery storage and Level 2 EV chargers require, and is permitted and inspected as code-compliant electrical work.

Solar arrays, battery storage, EV chargers and heat pumps are now standard parts of a modern home, and every one of them draws current through the same main panel. A 100-amp panel often cannot safely supply a Level 2 EV charger drawing 40 to 48 amps continuously alongside a battery inverter and normal household demand. When the math no longer works, you need more capacity. Green Conception sizes and installs the right service for your home, pulls the permit, coordinates the utility disconnect and reconnect, and schedules the final inspection, so your panel is ready for everything you plan to add.

Warning Signs

Signs You Need a Panel Upgrade

Breakers Trip Often

If you regularly reset a breaker when the microwave, space heater or hair dryer runs, your circuits are overloaded and your panel is at its limit.

Flickering or Dimming Lights

Lights that dim when a large appliance kicks on are a sign the panel struggles to deliver steady power across the home.

An Old Fuse Box or 60 to 100-Amp Service

Many older California homes still run 60 to 100-amp service or a fuse box, well short of the 200-amp standard modern homes are built around.

Adding Solar or a Battery

Solar inverters and battery systems need dedicated breaker space and capacity that a full or undersized panel simply cannot provide.

Installing an EV Charger

A Level 2 EV charger draws 40 to 48 amps continuously. On a 100-amp panel that load often will not fit alongside everything else.

A Warm or Buzzing Panel

Heat, scorch marks, or a buzzing sound at the panel are safety concerns that warrant a prompt professional evaluation.

How It Works

Permitted, Inspected and Done Right

01

Load Assessment

Review your current service, existing loads and what you plan to add, then size the right panel for your home.

02

Permit & Utility Coordination

Pull the required California permit and coordinate the utility disconnect and reconnect for your service upgrade.

03

Panel Installation

Install the new panel, including the surge protective device current code requires, with power restored the same day in most cases.

04

Final Inspection

Schedule and pass the building department inspection so your upgrade is documented and fully code-compliant.

Additional Services

One Team for Your Whole Home.

EV Charging

Once your panel has the capacity, a Level 2 charger powers your vehicle faster at home. Get the charger and the dedicated circuit it needs installed in one coordinated project.

Learn More

Solar & Battery Storage

An upgraded panel is the foundation for solar and battery backup. Add a system that lowers your bill and keeps the power on, with $0 down financing available.

Learn More
Good Questions

Main Panel Upgrade FAQ

Why do I need a main panel upgrade for solar or an EV charger?
A Level 2 EV charger draws 40 to 48 amps continuously, and solar inverters and batteries need dedicated breaker space. Many homes on 100-amp service cannot safely carry that load on top of normal demand. Upgrading to a 200-amp panel adds capacity and the open circuit slots these systems require.
How much does a main panel upgrade cost in California?
A typical 100-amp to 200-amp residential upgrade in California generally runs between about $2,000 and $6,000, depending on the home, the utility, and whether the service is overhead or underground. Underground service upgrades that require trenching cost more. You get exact pricing after a free assessment.
Do I need a permit to upgrade my electrical panel?
Yes. California requires a permit for any work that affects the main service panel, including increasing amperage from 100 to 200 amps. Green Conception pulls the permit, coordinates the utility disconnect and reconnect, and schedules the final inspection, so the work is fully documented and code-compliant.
What are the signs I need a panel upgrade?
Common signs include breakers that trip often, flickering or dimming lights when large appliances run, a warm or buzzing panel, a fuse box or 60 to 100-amp service in an older home, or plans to add solar, a battery, an EV charger, or a heat pump.
How long does a panel upgrade take?
Most residential panel upgrades are completed in a single day on site, with power restored the same day in most cases. Permitting and the utility coordination happen before the install, and the final inspection follows shortly after.

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