TESLA CERTIFIED INSTALLER · SAN DIEGO & ORANGE COUNTY

The CL Electric Blog: Tesla Powerwall, Wall Connector and home energy

Technical answers on Tesla Powerwall 3 design and sizing, Wall Connector circuits and code, solar integration and SDG&E rules, from the licensed electricians who install them across San Diego and Orange County.

Get a Powerwall 3 quote Get a Wall Connector quote

Tesla Powerwall 3

Home batteries and backup power

Tesla Powerwall

Tesla Powerwall 3 installation: the technical guide

Breaker sizing, the 120% busbar rule, Gateway 3 vs Backup Switch, and what happens on install day.

Read the post · 8 min →

Tesla Powerwall

How many Powerwalls do I need? A technical sizing guide

kWh vs kW, motor starting current, and when an Expansion beats a second Powerwall.

Read the post · 6 min →

Solar + Powerwall

Adding a Tesla Powerwall 3 to existing solar in San Diego

AC coupling, inverter compatibility, backfeed limits, and keeping your NEM 2 status.

Read the post · 6 min →

Tesla Wall Connector

EV charging and choosing an installer

Tesla Wall Connector

Tesla Wall Connector installation: circuit, wire and code requirements

Breaker vs output table, wire gauge, grounding, mounting height and power sharing.

Read the post · 7 min →

Tesla Wall Connector

Tesla Wall Connector vs a NEMA 14-50 outlet: which is better for home charging?

Charging current, GFCI rules, receptacle heat, and why we usually recommend hardwired.

Read the post · 5 min →

Tesla Certified Installer

What is a Tesla Certified Installer, and how do you choose one?

What the certification means, how to verify it, and the technical questions to ask.

Read the post · 5 min →

Practical guides

Panels, rebates and power shutoffs

Backup power

Tesla Powerwall 3 vs a standby generator for power shutoffs

Battery, generator or both? How each handles a multi-day SDG&E shutoff.

Read the guide · 6 min →

Panels & service

SDG&E panel upgrade: the steps from quote to power back on

Load calculation, permit, SDG&E request, inspection, and how long each step takes.

Read the guide · 5 min →

EV charging

EV charger rebates in San Diego: what's still available in 2026

The federal charger credit ended June 30, 2026. Here's what San Diego drivers can still use.

Read the guide · 5 min →

Panels & service

Do I need a 200-amp panel?

When a 100A home really needs 200A, and when load management avoids the upgrade.

Read the guide · 5 min →

EV charging

Can I add an EV charger without upgrading my panel?

Load management, power sharing and right-sized chargers that avoid an upgrade.

Read the guide · 4 min →

Have a question?

Ask us. It may become the next post

Tell us what you're planning and we'll give you a straight answer.

Ask an electrician

The CL Electric Power Letter

One practical guide a month

Straight answers on panels, EV charging, batteries, generators and SDG&E rules — from licensed San Diego electricians. No spam, unsubscribe anytime.