When Your Business Outgrows Its Electrical Infrastructure
A commercial electrical panel that was adequate when your building was constructed may be the bottleneck holding your business back today. This is especially true in Tulsa’s older commercial corridors along the Admiral and 11th Street, and in the East Tulsa commercial district, as well as in industrial areas in Sand Springs and west Tulsa, where buildings may date back 40 or 50 years.
Commercial panel upgrades are more complex than residential ones; they involve utility coordination, larger equipment, three-phase considerations, and permit timelines that differ by municipality. This guide gives Tulsa business owners a clear picture of what’s involved.
Signs Your Commercial Panel Needs Attention
- Breakers tripping under normal operational load
- Inability to add equipment or circuits without exceeding panel capacity
- Voltage fluctuations affecting sensitive equipment or computers
- A panel that shows visible signs of age: rust, corrosion, heat damage, or outdated brand (Stab-Lok, Zinsco, older GE)
- You’re adding HVAC, commercial kitchen equipment, heavy machinery, or EV charging infrastructure
- Your utility has flagged a service entrance issue
Single-Phase vs. Three-Phase: Do You Need to Upgrade?
Single-phase electrical service handles most light commercial loads adequately in offices, retail, and restaurants with modest equipment. Three-phase service is appropriate for operations running large motors, commercial HVAC systems, industrial compressors, commercial printing, or manufacturing equipment.
The advantages of three-phase for businesses that need it are significant: motors run cooler and more efficiently, equipment lasts longer, and the load is balanced across three conductors rather than two. If your equipment list has been growing and efficiency has been declining, three-phase deserves a serious look.
The Upgrade Process
Step 1: Load Calculation and Assessment
Before any work is specified, we calculate your current electrical load and project future demand based on your planned equipment additions. This determines the required service size, whether that’s upgrading from 200A to 400A or moving from single-phase to three-phase service.
Step 2: Utility Coordination
Commercial service upgrades require coordination with PSO (Public Service Company of Oklahoma) or your local utility. This involves a service entrance upgrade, meter base changes, and scheduling utility work in conjunction with the panel installation. Lead times for utility coordination vary, which is why commercial upgrade planning should start before the need becomes urgent.
Step 3: Permit and Inspection
Commercial electrical panel work requires permits through the City of Tulsa Development Services or the relevant municipal authority, followed by inspection. Buxton manages the permit process as part of every commercial panel project.
Step 4: Installation and Testing
The physical panel installation, replacing the existing equipment, making connections, and labeling circuits, is completed by our team. We test under load before handing the system back to you.
The Buxton Standard: Precision Every Time
Commercial panel work requires contractors who understand what’s at stake:
Your business operations depend on the electrical system working correctly and continuously. Buxton brings the same inspection-ready standards to commercial panel work that we bring to new construction because rushed or imprecise work creates problems that get expensive fast. We do it right the first time.
