200A Electrical Panel Upgrades: The Complete Bay Area Homeowner's Guide

Why 200 Amps Is the New Standard

Twenty years ago, a 100-amp electrical service was enough for most homes. Today, that's no longer the case. Modern Bay Area households are running:

• EV chargers drawing 40–80 amps
• Heat pumps for heating and cooling (30–60 amps)
• Induction ranges replacing gas stoves (40–50 amps)
• Solar and battery systems that require a backfeed breaker
• Home offices with multiple computers, monitors, and equipment

A 100-amp panel can quickly run out of capacity when you add these loads. A 200-amp service gives you headroom for all of these and future-proofs your home for the electrification movement that's accelerating across California.

Signs You Need a Panel Upgrade

You may need a panel upgrade if:

• Your breakers trip frequently, especially when multiple appliances run at once
• Your lights dim or flicker when the AC or refrigerator kicks on
• Your panel still has fuses or is a Zinsco or Federal Pacific brand (both have known safety defects)
• You're adding an EV charger, heat pump, or solar system and your current panel is full
• Your panel is 25+ years old and showing signs of corrosion or overheating
• You're remodeling or adding square footage

What Does a 200A Panel Upgrade Cost in the Bay Area?

In the San Francisco Bay Area, a standard 200-amp panel upgrade typically costs between $3,500 and $7,500. The range depends on:

• Panel location — exterior wall vs. indoor, garage vs. utility closet
• Service entrance — whether the mast, meter, and service wire from PG&E need upgrading
• Grounding system — modern panels require a full grounding electrode system (ground rod, water pipe bond, etc.)
• Circuit relocation — if existing circuits need to be rerouted to the new panel location
• Trenching or underground service — if PG&E requires the service to be undergrounded

If PG&E needs to upgrade the service drop or transformer, there may be additional utility-side costs, though PG&E typically covers the service entrance up to the meter for residential upgrades.

The Panel Upgrade Process

Here's what a typical 200-amp panel upgrade looks like from start to finish:

1. Load calculation. Your electrician performs a NEC-compliant load calculation to confirm 200 amps is sufficient for your home's current and planned loads.

2. Permit pulled. An electrical permit is obtained from your local building department (SF DBI, Oakland Building Bureau, etc.).

3. PG&E coordination. If the service entrance or meter needs to change, your electrician coordinates with PG&E to schedule a meter upgrade and service reconnection. PG&E typically requires 2–4 weeks of lead time.

4. Installation day. Power is shut off for approximately 4–8 hours. The old panel is removed, the new 200-amp panel is installed, all circuits are reconnected, and the grounding system is upgraded.

5. Inspection. The local building inspector signs off on the work.

6. PG&E reconnection. If the meter was upgraded, PG&E reconnects the service and installs the new meter.

How Long Does It Take?

• Permit and scheduling: 1–2 weeks
• PG&E coordination (if needed): 2–4 weeks
• Installation day: 4–8 hours of power-off time
• Inspection: 1–3 days after installation

Most panel upgrades are completed in a single day of work, with the total timeline (including permits and PG&E) running 3–6 weeks.

Do You Need a Permit?

Yes. Electrical panel upgrades require a permit in every Bay Area jurisdiction. The work must be performed by a licensed electrician (C-10 license in California) and inspected by the local building department. Doing this work without a permit is illegal, creates liability, and will be flagged in any future home inspection.

Frequently Asked Questions

Can I upgrade to 400 amps instead?

Yes, if you have a very large home, a sub-panel for an ADU, or heavy commercial loads. A 400-amp service typically costs $6,000–$12,000 and may require a different meter base and service wire.

Will I need to upgrade my PG&E service?

If your home currently has 100-amp service and you're upgrading to 200 amps, PG&E will need to upgrade the service drop and meter. Your electrician handles this coordination.

Can I add an EV charger to a 100-amp panel?

Sometimes — it depends on your existing load. A load calculation will tell you if there's capacity. If not, a panel upgrade or a dedicated EV sub-panel may be needed.

Does solar require a panel upgrade?

Not always, but if your panel is full or older than 20 years, most solar installers will recommend upgrading it as part of the solar installation.

Russell Electric is a licensed C-10 electrical contractor (CA License #1106773) specializing in residential panel upgrades across the Bay Area. Get a free quote or call (510) 303-2473.