Commercial Generator Installation

Engineering-grade backup power for facilities where downtime isn't an option. From 500kW to 4MW+, we design, install, and commission systems built to perform when the grid fails.

4MW+
Largest system installed
43+
Years in service
30+
Locations nationwide
24/7
Emergency service

Factory-Authorized
Dealer & installer
Engineering-First
Load analysis & design
500kW – 4MW+
Full commercial range
24/7 Emergency
Service & support
Nationwide Coverage
30+ service locations
FSG – Hook Row

Commercial Power Outages Cost More Than You Think

When a 300,000-square-foot cold storage facility loses power, product temperature rises rapidly. By hour four, you're looking at a six-figure loss. By hour eight, it's a total write-off.

For large facilities, distribution centers, manufacturing plants, healthcare campuses, data centers, power loss isn't an inconvenience. It's a business-critical event with cascading consequences that compound by the minute.

A hospital without backup power violates Joint Commission standards within seconds. A pharmaceutical line interrupted mid-batch requires complete disposal. A data center that can't maintain uptime loses clients and revenue simultaneously.

The scale changes everything. This is what protecting uptime at scale actually looks like.

$7,800/hr
Average cost of a one-hour outage for industrial and digital economy firms. — EPRI/Primen
≤10 sec
NFPA 99 transfer requirement for healthcare life safety systems. No margin for error.
9 hrs
Average major outage duration in 2024 — more than double the prior decade's average. — EIA
Row notch-bottom-right Shape Decorative svg added to top
Industry Grid
Healthcare Campuses
Hospitals, surgical centers, and medical facilities operating under NFPA 99 and Joint Commission standards. Zero tolerance for transfer delays.
NFPA 110 Level 1
Manufacturing Plants
Protecting work-in-progress, CNC operations, motor loads, and enabling controlled shutdown sequences during grid events.
Mission Critical
Data Centers
IT loads requiring ≤10 second transfer to overlap UPS runtime. N+1 parallel configurations for continuous uptime assurance.
Tier III / Tier IV
Cold Storage & Distribution
Refrigeration systems where temperature-controlled product loss multiplies every minute of downtime. Single-outage justification.
High Revenue Risk
Commercial Facilities
Office campuses, retail centers, mixed-use developments, and multi-tenant buildings requiring NEC Article 702 standby systems.
NFPA 110 Level 2
Industrial & Petrochemical
Process-critical environments with complex load profiles, hazardous location requirements, and continuous production pressures.
Complex Load Profiles

INDUSTRIES WE SERVE

Built for Facilities where power loss has real consequences

A 20kW residential generator keeps the lights on during a storm. A 2MW commercial installation keeps a $50 million operation running when the grid fails. We work exclusively with the latter.

Real projects. Real Facilities.

What Large-Scale Generator Installation Actually looks like.

Driscoll Children's Hospital emergency generator installation
Healthcare | Corpus Christi, TX
Driscoll Children's Hospital

FSG Corpus Christi installed a new Kohler 1,750kW generator set, including dual docking stations, load banks, and emergency switchgear, as part of a multi-phase hospital expansion. Life-safety operations integrated with chillers, boilers, and building controls. Delivered on schedule.

1,750kW System Life Safety FSG Corpus Christi NFPA 110 Level 1
K&N Filters manufacturing facility generator installation
Manufacturing | Grand Prairie, TX
K&N Filters Manufacturing Facility

FSG Dallas installed and integrated a full emergency generator system for K&N Filters' new manufacturing facility, covering site preparation, generator placement, electrical connections, and coordination with switchgear and load banks. Tested and commissioned for day-one readiness.

New Construction Emergency Power FSG Dallas Manufacturing
Sister Grove Wastewater Treatment Plant generator installation
Municipal Infrastructure | North Texas
Sister Grove Wastewater Treatment Plant

FSG Dallas installed three 3,250kW backup generators for the North Texas Municipal Water District's Sister Grove facility, coordinating pad construction, generator placement, parallel switchgear, and load bank integration. Full testing and commissioning to ensure uninterrupted wastewater treatment operations.

3x 3,250kW Generators Parallel Switchgear FSG Dallas Municipal Water

Code Compliance Essentials

Engineering capability separates professionals from installers. If a contractor quotes without asking detailed questions about operations,
load profiles, and growth plans, they're guessing. Guesses on expensive projects create expensive problems.

NFPA 110 — Level 1
Life Safety Systems
  • Failure could cause loss of life
  • Hospitals, fire pumps, emergency egress
  • ≤10-second transfer time required
  • 24-hour minimum fuel capacity
  • Monthly load testing required
  • NEC Article 700 — Emergency Systems
NFPA 110 — Level 2
Commercial & Industrial
  • Most commercial and industrial facilities
  • Transfer up to 60 seconds acceptable
  • 8-hour minimum fuel capacity
  • Monthly testing recommended
  • Enforcement varies by jurisdiction
  • NEC Article 701 & 702 — Standby Systems
Testing Requirements
Where Systems Fail
  • Monthly 30-min runs prevent wet stacking
  • Annual testing to 30% minimum capacity
  • Load bank to 100% every 3 years
  • Idle-only generators: 15–20% failure rate
  • Monthly tested: under 3% failure rate
Why it matters

The Load calculation that Actually matters.

Load Calculation Tables
Example: 150-Bed Hospital
Total connected load4,500 kVA
Life safety (lighting, alarms, pumps)250 kVA
Critical branch (surgical, ICU, imaging)800 kVA
Equipment branch (elevators, HVAC)450 kVA
Essential electrical system1,500 kVA
Result: $600K system instead of $1.8M — without compromising code compliance.
Example: 300K sqft Auto Parts Plant
Total connected load3,200 kVA
Emergency running load1,800 kVA
CNC motor starting inrush peak2,400 kVA
Required system size2,400 kVA
Sizing at running load causes nuisance trips during transfer — exactly when you need reliability most.
Why choose FSG

Why Choose FSG for your Commercial Generator Project

FSG is one of the nation's largest commercial electrical contractors, with 43 years of experience, 30+ locations nationwide, and a team of licensed engineers who handle every phase of a generator project in-house. When your facility's uptime is on the line, you need a contractor with the engineering depth, the service network, and the proven project history to back it up.

  • Powered

    Powered to Handle it All

    Our projects include facilities of all sizes, but where we stand apart is at scale. 500kW+ systems in manufacturing, healthcare, data centers, and cold storage. The complexity of a large facility installation is a different problem entirely, and it requires a different level of experience to solve it right.

  • Reach

    Local Strength, Nationwide Reach

    The resources of a national contractor with local crews who know your AHJ, your utility, and your market. 43 years in the industry with 30+ service locations across the country.

  • Scale

    Built to Scale with Your Business

    Built to support facilities at scale, our 30+ locations nationwide put staff technicians, not subcontractors, within reach of your facility around the clock. We stock common parts and show up at 2 AM on a Sunday when it matters. A generator is only as reliable as the service network behind it.

Commercial Generator Installation FAQ

Have a question? Here are some of the most frequently asked questions of our team.

Let’s Talk About Your Commercial Generator Project.

Ready to protect your facility's uptime? Let's talk.

Or call us at

Around the Nation. Around the Corner.

We have locations in Abilene, Albuquerque, Atlanta, Austin, Chicago, Cincinnati, Corpus Christi, Dallas, Denver, Houston, Indianapolis, Kansas City, Tampa, Las Vegas, Miami, Phoenix, Missoula, New York, New Jersey, Los Angeles, San Antonio, San Francisco, and more.

A map of the United States showing the location of FSG's offices