Electrical Panel Upgrades for Southern California Homes

Southern California Edison states that the average panel upgrade costs about $4,200. The California Energy Commission gives a broader typical range of roughly $2,000 to $6,000, depending on factors such as the age of the home and the complexity of the upgrade. Projects that require panel relocation, utility-side work, trenching, or other major changes can cost more.

Official sources: SCE Charge Ready Home cost FAQ · California Energy Commission homeowner guidance

SCE says the physical panel upgrade itself typically takes about 6–8 hours on average. The complete project timeline can be longer because permits, utility coordination, meter work, inspections, and scheduling may happen before or after the installation day.

Official source: SCE Charge Ready Home FAQ

In most Southern California jurisdictions, yes. Electrical service and panel upgrades require permits and inspection. Requirements vary by city and county. For example, Riverside County has a specific residential electrical upgrade permit process, the City of Riverside directs customers to obtain a panel-upgrade permit through Building & Safety, and Los Angeles allows qualifying residential electrical service-upgrade permits through its permitting system.

Official sources: Riverside County Building & Safety · Riverside Public Utilities · Los Angeles Department of Building and Safety

Eligible SCE customers may receive up to $4,200 through Charge Ready Home. SCE describes the income-qualified incentive as targeting up to 100% of eligible panel-upgrade costs, while the geographic-based disadvantaged-community incentive targets approximately 50%, up to $2,100. Eligibility, available funding, and program rules apply.

Official sources: SCE Charge Ready Home · SCE contractor program details

SCE states that qualifying projects must install at least a 200-amp electrical panel and a dedicated 240-volt outlet or circuit located within 25 feet of off-street parking for future Level 2 EV charging. Participants must also meet the program's household or geographic eligibility requirements and documentation rules.

Official source: SCE Charge Ready Home FAQ

Not necessarily. The California Energy Commission notes that single-family homes commonly have service panels ranging from roughly 60 to 200 amps, and many homes can add electric appliances without automatically upsizing the service. The correct size depends on the home's existing loads and planned additions. A load calculation is the best way to determine whether the existing service is adequate.

A 200-amp panel is especially common when planning for combinations of larger loads such as EV charging, electric cooking, HVAC, water heating, ADUs, or major remodels. It is also the minimum panel size required for SCE's Charge Ready Home rebate.

Official sources: California Energy Commission · SCE Charge Ready Home FAQ

Not always. A licensed electrician should perform a load assessment to determine whether the existing panel and electrical service can safely support the charger. Level 2 charging typically uses a dedicated 240-volt circuit, and higher-power chargers can add a significant electrical load. If the existing panel does not have enough capacity, an upgrade or another approved load-management solution may be required.

Official sources: California Energy Commission · Riverside Public Utilities EV guidance

Costs can increase if the electrical service must be relocated, utility equipment or service conductors need modification, the existing installation must be brought up to current code, the home has difficult access, or additional work such as trenching, grounding, bonding, or meter changes is required. California Energy Commission guidance specifically notes that panel and service upgrades can vary substantially in cost and that relocation or utility requirements may add expense.

Official source: California Energy Commission

SCE says customers may still apply if the qualifying electrical panel upgrade was completed within the previous six months. Program eligibility, documentation, and funding requirements still apply.

Official source: SCE Charge Ready Home — How to Apply

SCE's program requires participants to plan to install Level 2 charging within 180 days of the electrical panel upgrade.

Official source: SCE Charge Ready Home FAQ