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COMMERCIAL ELECTRICAL SERVICES

Commercial Electrical Wiring in Southern California

From service upgrades and new switchgear to EV charger circuits and solar interconnection, our in-house electricians design, permit and install commercial electrical systems that are safe, code-compliant and ready to grow with your business.

WHAT WE DO

Commercial Electrical Services

Offices, retail centers, warehouses, restaurants, schools and public agencies across Orange, Los Angeles, San Diego, Riverside and San Bernardino Counties.

Service Upgrades & New Services

Utility service upgrades, new meter sections and coordination with SCE, SDG&E and LADWP.

Switchgear & Panelboards

Main switchboards, distribution panels and sub-panels sized for today’s load and tomorrow’s growth.

EV Charging Infrastructure

Dedicated feeders, panels and load management for Level 2 and DC fast chargers.

Solar & Battery Interconnection

Point-of-interconnection design, PV disconnects and battery storage integration.

Tenant Improvements

Power, lighting and data rough-in for office, retail, warehouse and restaurant build-outs.

LED Lighting & Controls

Interior and exterior LED retrofits, parking lot lighting and Title 24 lighting controls.

Dedicated Equipment Circuits

Circuits for HVAC, kitchens, machinery, compressors and 3-phase equipment.

Load Calculations & Panel Studies

Load studies to see what your service can support before you add chargers or equipment.

Troubleshooting & Repairs

Diagnosing tripping breakers, overloaded circuits and failed equipment to keep you running.

SINGLE-LINE DIAGRAM

How Your Commercial Electrical System Connects

A single-line diagram (SLD) maps how power flows from the utility through your main switchboard to every panel and load, and how solar, battery storage and EV chargers tie in. It is the backbone of every permit and utility interconnection application we prepare.

← Swipe to see the full diagram →

UTILITY SERVICESCE · SDG&E · LADWPMUtility meterMAIN SWITCHBOARD (MSB)Main breaker · metering · busDISTRIBUTIONPANELBUILDING LOADSLighting · HVAC · OutletsEV CHARGERPANELLevel 2 / DC fast chargersPV DISCONNECTAC breakerSOLAR INVERTERSRooftop / carport PV arrayBATTERY STORAGEESS + inverterCRITICAL LOADSBackup panelPower to loadsPower generated / storedBreaker / overcurrent protection

Simplified, illustrative diagram. Every Energy-SBC project gets its own single-line diagram, load calculation and equipment schedule, prepared for permitting and utility interconnection.

OUR PROCESS

From Site Walk to Final Inspection

1

Site Assessment

We walk the site, review your existing switchgear and utility bills, and run a load calculation.

2

Design & Permits

We prepare the single-line diagram and plans, then handle permits and utility coordination.

3

Installation

Our in-house crew installs to code, scheduled around your operations to keep downtime low.

4

Testing & Handoff

We test, pass inspection, label everything and hand over as-built documentation.

WHY ENERGY-SBC

Why Businesses Choose Energy-SBC

In-house electricians

Our own team does the work. We don't subcontract it out.

CA License #1001745

Licensed California contractor, registered with the SBA and California Small Business certified.

Workmanship warranty

We stand behind every installation we complete.

Solar, storage & EV experts

One partner for wiring today and for adding solar, batteries or chargers later.

Planning an Upgrade, EV Chargers or a Tenant Build-Out?

Tell us about your building and goals. We will review your existing service and give you a clear plan and quote. Prefer to talk? Call 833-722-3637.