How much does a 100A vs 200A panel upgrade cost in Los Angeles?

A 100A panel replacement typically costs $1,500–$2,500. A 200A upgrade (including new service cable and meter base) runs $2,500–$4,500. If LADWP needs to upgrade the service drop from the pole, add $500–$1,500.

Is 200A required for an EV charger?

Not always. A 100A panel can support an EV charger if other loads are managed — but many LA homes with 100A panels are already near capacity. A load calculation determines whether 200A is needed. If you're adding both a charger and other appliances, 200A is the safer choice.

Does Los Angeles code require 200A panels?

The 2022 California Electrical Code does not mandate 200A for all homes. However, new homes over 2,000 sq ft typically require 200A minimum. For existing homes, 100A is still code-compliant if it passes a load calculation. Most homeowners upgrade to 200A for future capacity.

Will a 200A panel lower my electricity bill?

No. Panel amperage does not affect energy consumption. You only pay for the electricity you use, regardless of panel capacity. However, upgrading allows you to add efficient appliances (heat pumps, induction ranges, EV chargers) that can save money over time.

How long does a 100A to 200A upgrade take?

Installation takes 4–8 hours of labor. The full timeline includes 1–3 weeks for LADWP coordination and permitting, plus 1–2 weeks for inspection sign-off. We handle all scheduling with LADBS and LADWP.

100A vs 200A Electrical Panel:
Which Is Right for Your LA Home?

If you're replacing your electrical panel, you're deciding between 100 amp and 200 amp service. We break down the costs, capacity, and code requirements so you can make the right call.

☎ Call (818) 302-5614 Free Estimate

Side by Side

100A vs 200A at a Glance

The right panel size depends on your home's square footage, electrical loads, and future plans. Here's how they compare.

Feature

100A Panel

Total Capacity

24,000 watts (240V × 100A)

Total Capacity

48,000 watts (240V × 200A)

Circuit Spaces

20–30 spaces (typical)

Circuit Spaces

30–42 spaces (typical)

Good For

Small homes < 1,500 sq ft, condos, apartments

Good For

Homes > 1,500 sq ft, EV chargers, modern appliances

Supports EV Charger?

Maybe — depends on load calculation

Supports EV Charger?

Yes — usually without load management

Central AC

3-ton max (depending on other loads)

Central AC

Up to 5-ton with room for other loads

Install Cost (LA)

$1,500 – $2,500

Install Cost (LA)

$2,500 – $4,500

Best For

Condos, small homes, budget-focused upgrades

Best For

Most single-family homes, EV owners, future-proofing

Decision Guide

When to Choose 200A Over 100A

A 200A panel costs more upfront but eliminates the need for a second upgrade when your electrical needs grow. Choose 200A if your home has any of the following:

EV Charger or Solar

Level 2 EV chargers draw 30–50A. Solar systems backfeed 30–60A. Both require the headroom only 200A provides.

Home Over 1,500 sq ft

Larger homes have more circuits — lighting, kitchen, bathrooms, laundry, garage, outdoor — that push a 100A panel to its limit.

Modern Appliances

Heat pumps, induction ranges, tankless water heaters, and jacuzzis each add 30–60A. A 200A panel gives you room for all of them.

Frequent Breaker Trips

If your main breaker trips regularly when running normal appliances, your 100A panel is overloaded and needs upgrading.

When 100A Works

100A Is Still Fine for Some Homes

If your current 100A panel is functioning well and passes a load calculation, a like-for-like replacement may be the right call — especially for:

✓Condos and apartments — Most have dedicated 100A service per unit and cannot physically upgrade to 200A without building-wide service changes.
✓Small homes under 1,200 sq ft — If gas appliances are used and there are no plans for EV charging or major additions, 100A provides adequate capacity.
✓Budget-constrained upgrades — If a failing panel needs immediate replacement and budget is limited, a 100A replacement is $1,000–$2,000 less than 200A. Future upgrades are always possible.

Costs

Panel Upgrade Costs in Los Angeles

Service	Typical Range
100A Panel Replacement (like-for-like)	$1,500 – $2,500
100A to 200A Upgrade (full service)	$2,500 – $4,500
Service Cable Upgrade (LADWP coordination)	$500 – $1,500
EV-Ready 200A Upgrade (panel + charger circuit)	$3,000 – $5,500
Sub-Panel Addition	$1,200 – $2,500

All prices include permits, materials, and inspection. We provide a written quote before any work begins.

Project Photo

Recent 200A Panel Upgrade

Siemens 200A panel upgrade with exterior stucco finish

A completed 200A Siemens panel upgrade in Los Angeles — main disconnect, 30+ breaker spaces, and room for future circuits.

Questions

100A vs 200A Panel FAQ

Can I upgrade from 100A to 200A without rewiring my entire house? ▾

Yes. The upgrade replaces the service entrance cable, meter base, main panel, and main breaker. Existing branch circuits stay connected. Your interior wiring does not need to be replaced unless it's damaged or undersized.

Does Los Angeles building code require 200A panels? ▾

The 2022 California Electrical Code does not mandate 200A for all homes. New homes over 2,000 sq ft typically require 200A. For existing homes, 100A is code-compliant if it passes a load calculation. Most homeowners choose 200A for future capacity — especially if adding EV charging or modern appliances.

Is 200A worth the extra cost? ▾

For most single-family homes in LA, yes. The $1,000–$2,000 premium over a 100A replacement pays for itself when you eventually add an EV charger, solar, or heat pump. Upgrading twice costs more than doing 200A once.

Can I install an EV charger with a 100A panel? ▾

It depends on your current load. We perform a free load calculation to check. If you have gas appliances and moderate loads, a 100A panel can often handle a Level 2 charger. If your panel is near capacity, a 200A upgrade or load management device may be needed.

Will a bigger panel increase my electric bill? ▾

No. Panel amperage does not affect energy consumption. You pay only for the electricity you use. A 200A panel simply gives you the capacity to use more electricity — you don't consume more unless you add devices.

Does AMY Electric handle LADWP coordination? ▾

Yes. We handle the entire process — permit application with LADBS, service upgrade request with LADWP, meter pull scheduling, installation, and final inspection. You don't need to call any city agency.

Service Areas

Panel Upgrades Across Los Angeles

We provide panel upgrades and electrical services across all of Greater Los Angeles:

Not Sure Which Panel You Need?

We'll walk through your current loads and future plans — free, no obligation.

☎ Call (818) 302-5614 Request Free Estimate

100A vs 200A Electrical Panel:Which Is Right for Your LA Home?