Commercial Backup Power Systems in St. Charles & St. Louis County
Standby generators, UPS systems, and emergency power solutions to keep your St. Louis area business running during outages.
MO License #20250016884.9 Star Average. 410+ Reviews.In Business Since 2010Cottleville, MO
Common Reasons People Book This
What It Costs
An estimate, not a quote. Estimates for installs and upgrades are free; your exact flat price comes after we see the job, and it's the price you pay.
Typical Scope
- Commercial standby generators
- Automatic transfer switches
- UPS system installation
- Load management
- Natural gas and diesel options
- Paralleling switchgear
- Load bank testing
From First Visit to Final Inspection
Typical job: 3-7 days.
Critical Load Analysis
We identify which systems must stay running during an outage: servers, refrigeration, life safety, production equipment, or entire facility. We calculate running and starting loads, accounting for motor inrush and power factor, to determine the minimum generator capacity required.
System Design
Based on load analysis, we specify the complete backup power system: generator size and fuel type, automatic transfer switch rating, and any load shedding or sequencing requirements. For critical facilities, we design N+1 redundancy and paralleling configurations.
Site Planning
We identify the optimal generator location considering fuel delivery access, exhaust clearances, noise ordinances, and cable run distances. For rooftop or indoor installations, we address structural requirements, ventilation, and fuel storage regulations.
Permit Coordination
Commercial generator installations require electrical permits and often mechanical permits for fuel systems. We handle all permit applications, including load calculations, site plans, and one-line diagrams. We coordinate inspections throughout the project.
Pad & Fuel System
We coordinate concrete pad installation sized for your generator, plus fuel system requirements: natural gas piping from the meter or diesel tank installation with containment. All fuel work is performed by licensed contractors and inspected.
Electrical Installation
We install the automatic transfer switch, generator feeder cables, and all control wiring. For larger systems, this includes paralleling switchgear, utility metering, and load management controls. All connections are torqued and documented.
Commissioning & Load Testing
After installation, we perform comprehensive startup and commissioning. This includes a full load bank test to verify the generator handles rated capacity. We simulate utility failure to verify automatic transfer operation and measure transfer time.
Training & Handoff
We train your facilities staff on generator operation, manual transfer procedures, and basic troubleshooting. You receive complete documentation including O&M manuals, as-builts, and a recommended maintenance schedule. We offer ongoing maintenance contracts for regular testing and service.
What Homeowners Say About Our Work
Reviews that mention this work first.
Monte M.
Jack S.
Larry H.
4.9 Star Average. 410+ Reviews. Google, Facebook, BBB and Angi.
Fully licensed and insured in Missouri:MO State License #2025001688,St. Charles County #E25-000008,St. Louis County #ES4501.Lifetime workmanship warranty on installed work.
Licensed Electricians Across St. Charles & St. Louis Counties
Flat-rate pricing before work begins, from an office in Cottleville.
First Choice Electric
5377 State Route N. Suite 437, Cottleville, MO 63304
Mon-Fri 8:00 AM - 4:00 PM
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Questions About Commercial Backup Power Systems
What size generator does my business need?
It depends on your critical loads. We perform a load analysis to size the generator properly.
Natural gas or diesel?
Natural gas is convenient for unlimited runtime. Diesel provides higher power density and doesn't depend on gas lines.
Do you offer maintenance?
We install backup power systems but don't service generators. For testing, oil changes and repairs, we'll connect you with the manufacturer's authorized service dealer.
What about UPS systems?
Yes. We install UPS systems for immediate backup and can integrate with generators for extended outages.
How often should generators be tested?
Monthly exercise runs and annual load bank testing are recommended. The manufacturer's authorized service dealer can set up that schedule.
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Get Your Flat Price for Commercial Backup Power Systems
Most estimates booked within 1-3 business days.