200A electrical panel upgrade for EV charger install in the Bay Area

Panel Upgrade for EV

When Your EV Charger Needs a Bigger Panel

Honest load calc first. Cheaper alternatives (lower amperage, load sharing, energy management) before recommending the upgrade. 100A → 200A or 400A bundled with the EV charger install on the same day.

Get a Load Calc + Quote (650) 550-0719

When & Why

Not every EV install needs a panel upgrade.

A 48A EV charger needs 60A of panel capacity reserved per NEC. On a 100A or 125A service with electric range, dryer, AC, heat pump water heater — that math runs out of room fast. Sometimes the right answer is the upgrade. Sometimes it's a 32A charger configuration or a load-sharing device for $500. We run the numbers and tell you which one.

When the upgrade IS the right call, we bundle it with the EV charger install on the same workday — single permit, single inspection, single PG&E disconnect. That saves $300–$500 versus separate mobilizations.

Common Triggers for an EV-Driven Upgrade

  • 100A or 125A service + Level 2 charger over 40A
  • Existing panel is Federal Pacific or Zinsco (insurance flag)
  • Planning two EV chargers in the same garage
  • Adding heat pump or induction range in next 2 years
  • Solar + battery interconnect planned
  • Panel is at capacity already (frequent breaker trips)

Try These First

Four ways to fit the charger before paying for the upgrade.

Most installs land on option 1 or 2. We recommend the upgrade only when the math actually requires it.

Lower Charger Amperage

Most chargers can be set to 24A or 32A instead of 48A. Charges most EVs overnight, no upgrade required.

Load-Sharing Device

DCC, NeoCharge, or charger-built-in load share throttles the EV when other big loads (range, dryer) run. ~$400–$900 device + install.

Energy Management Panel

Span panel, Lumin, or Emporia monitors total load and prioritizes circuits. Premium ($3,000–$5,000) but enables solar + storage integration.

Full Panel Upgrade

When the above options don't fit. 100A → 200A or 400A. Future-proofs for solar, battery, second EV, heat pumps.

What's Included

Six things, every panel-upgrade + EV bundle.

Combined Load Calculation

NEC load calc against existing panel including the planned EV charger. Quantifies headroom: do you have it, or do you need 200A/400A?

Alternatives First

If lowering amperage or a load-sharing device avoids the upgrade entirely, we tell you that — not push the upgrade. Cheaper for you, faster for everyone.

Permit + PG&E Coordination

Single permit covers both panel and EV charger. PG&E disconnect scheduled; inspection booked at completion.

Same-Day Cutover

Old panel out, new panel set, EV circuit run, charger mounted and terminated — single workday outage where possible.

Inspection & Sign-Off

Inspector covers panel + EV circuit in one visit. Signed permit card delivered with the invoice.

Documentation Bundle

Permit card, load calc, manufacturer warranties (panel, breakers, charger), GFCI test report — packaged for insurance and resale.

Pricing Context

What a panel upgrade for EV typically costs.

Every job gets a written fixed-fee quote after the $200 on-site assessment. Bundling panel + EV install saves ~$300–$500 vs separate mobilizations.

100A → 200A panel swap (same location) $3,500 – $6,500
EV charger install (bundled same day) + $1,200 – $2,800
Service mast or meter base replacement + $1,500 – $3,000
PG&E utility-side upgrade required + $2,000 – $4,000
Load-sharing device (avoids panel upgrade) $400 – $900 + install

Permit fees, PG&E reconnect charges, and any utility-side upgrade passed through at cost and itemized on the quote.

FAQ

Panel-for-EV questions, straight answers.

Level 2 chargers draw 30–60A continuous. NEC requires a 25% safety margin, so a 48A charger needs 60A of panel capacity reserved. Add an AC unit, electric range, heat pump water heater, dryer, and a 100A or 125A panel runs out of headroom. The load calculation against your existing service tells us whether your panel handles the charger or not — there is no guessing.

Three options before the panel upgrade: (1) Lower the charger amperage — most chargers can be set to 24A or 32A, which usually fits without an upgrade and still charges most EVs overnight; (2) Install a load-sharing device (DCC, Tesla Wall Connector load sharing, NeoCharge) that throttles the charger when other big loads run; (3) Use an EV-specific energy management system (Span panel, Lumin, Emporia) that monitors total load and prioritizes. We tell you which option fits your house in the quote.

Most Bay Area single-family homes do well on 200A even with an EV charger, induction range, and heat pump. 400A only makes sense if you plan two EV chargers, a large heat pump, AND solar with battery, or for larger homes / ADUs. We size it during the load calculation, not by guess — over-sizing wastes $3,000+.

Most 100A → 200A panel swaps fall in the $3,500–$6,500 range, plus the EV charger install on top ($1,200–$2,800). If the service mast or meter base needs replacement, add $1,500–$3,000; if PG&E requires a utility-side upgrade, plan another $2,000–$4,000. We provide a fixed written quote that bundles the panel upgrade and EV install on one PO.

Yes — typically a single workday outage (6–10 hours) while we cut over the service. PG&E schedules a temporary disconnect; we install the new panel and the EV charger circuit; the inspector signs off; PG&E reconnects. We schedule both jobs on the same day to minimize disruption.

Yes — we bundle the EV charger install with the panel upgrade on the same workday whenever possible. Permit covers both. One inspection, one outage, one invoice. Faster and ~$300–$500 cheaper than separate mobilizations.

Honest Load Calc First

Find out whether your panel needs the upgrade.

$200 on-site assessment includes the load calculation. Quote within 48 hours. Credit applied to project if you proceed.

Request a Load Calc (650) 550-0719
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