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Do You Really Need a Panel Upgrade for EV Charging?
A simple guide every SoCal homeowner should read.
A lot of homeowners worry they need a panel upgrade before installing an EV charger. The truth: most people don’t know until a real load calculation is done.
Here’s the clean breakdown.
1. When You Do Need a Panel Upgrade
You’ll likely need one if:
- Your panel is 100 amps or lower
- You have no free breaker spaces
- Your appliances (AC, dryer, range) already use most capacity
- The panel is old, damaged, or unsafe
- You have multiple EVs needing daily charging
- You plan future additions (AC, sauna, jacuzzi, etc.)
2. When You Don’t Need a Panel Upgrade
You probably don’t need an upgrade if:
- Your panel is 125–200 amps
- You have 2+ open breaker slots
- Your home has moderate electrical usage
- Smart load management can be added
This is more common in newer homes (2000+).
3. What Installers Check During Evaluation
A real load calculation includes:
- Panel total amperage
- Existing appliance loads
- Continuous load rating
- Available breaker capacity
- EV charging amperage requirement
This takes 10–15 minutes and gives a definitive answer — not a guess.
4. Costs of Panel Upgrades in SoCal
Typical range: $1,500 – $4,500
Influenced by:
- City permits
- Utility meter upgrade
- Panel brand
- Installation difficulty
- Home age
Homes in LA, Pasadena, and Santa Monica tend to cost more due to permit requirements.
5. Panel Upgrade Rebates
Some utilities give:
- $500 – $3,000 for upgrade assistance
Eligibility varies by ZIP code — not everyone qualifies.
Final Thoughts
Don’t assume you need a panel upgrade. Don’t assume you don’t.
Let a proper load calculation decide — it’s the only accurate way.
