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Briggs & Stratton 30kW Fortress Standby Generator - Liquid Cooled, Dual Fuel, Steel Enclosure

$14,624.00 Starting price

Equipment price only. Final quote will include freight, applicable taxes, and any additional fees.

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5 to 6 Week Lead Time

Commercial units ship direct from the manufacturer. Allow 5 to 6 weeks from confirmed order to delivery.

Briggs & Stratton 30kW Fortress commercial standby generator

Is Your Facility One Outage Away From a Costly, Compliance-Breaking Shutdown?

For facilities managers and building owners, a grid failure isn't an inconvenience, it's a financial event. Lost productivity, spoiled inventory, halted medical services, and regulatory exposure stack up fast, sometimes within the first hour. A residential-grade generator won't meet your load requirements, won't satisfy your insurance carrier, and certainly won't hold up under continuous commercial demand.

The stakes are too high to compromise on equipment that wasn't built for your environment. Code compliance, certified performance, and a warranty that actually covers labor and travel aren't luxuries, they're requirements.

The Briggs & Stratton 30kW Fortress Standby Generator (SKU 076880) delivers automatic, code-compliant backup power sized for small and light commercial facilities. Assembled and engineered in the USA, liquid cooled, and backed by a best-in-class 6-year parts, labor, and travel warranty, this is the standby solution procurement teams can specify with confidence.

  • 30 kW / 125 A output on both natural gas and LP, sized for real commercial loads without derating surprises when you switch fuels.
  • Liquid-cooled 1,600 cc engine, sustains extended run times under full commercial load without the wear penalties of air-cooled alternatives.
  • UL 2200 and CSA C22.2 No.100-14 certified, meets the code compliance benchmarks your AHJ, insurer, and facilities standards require.
  • EnergyTrak remote monitoring capable, facilities teams can verify operational status and performance data without a site visit.
  • 66 dB sound level, quiet enough for medical office, municipal, and mixed-use commercial environments where noise ordinances apply.
  • 6-year parts, labor, and travel warranty, not just parts coverage. Full commercial warranty protection from an authorized dealer network.

Fortress 30kW Features & Performance

The Briggs & Stratton Fortress line was engineered for one purpose: keeping commercial operations running when the grid doesn't. The 30kW model pairs a 1,600 cc liquid-cooled engine with a heavy-gauge steel enclosure, producing a generator that can sit outdoors year-round and cycle on within seconds of a utility interruption.

Dual-fuel capability is a genuine operational advantage. Whether your facility is connected to a municipal natural gas line or relies on on-site liquid propane storage, the Fortress delivers identical 30 kW / 125 A output on either fuel. Fuel consumption at 50% load runs 293,000 BTU/hr on natural gas and 328,000 BTU/hr on LP, numbers your mechanical engineer will need for load calculations and fuel supply sizing.

Symphony Choice compatibility means this unit integrates with load management transfer switches and modules (sold separately), giving facilities the ability to prioritize critical circuits and manage connected loads intelligently. For data centers, medical suites, and municipal facilities where certain systems must restore before others, that sequencing capability matters.

Remote monitoring via EnergyTrak (subscription required) lets facilities teams and service contractors track generator health, run hours, and alert status from any connected device. Proactive maintenance scheduling replaces reactive service calls.

Ready to specify the Fortress 30kW for your facility? Contact our commercial power specialists for load sizing, transfer switch recommendations, and certified installation referrals.

Ideal Applications for the Briggs & Stratton Fortress 30kW

Briggs & Stratton 30kW Fortress commercial standby generator installed at a commercial building's service area

This generator is specified for environments where downtime carries real consequences. It's not oversized for the application and not undersized for the load. At 30 kW single-phase, it covers the following commercial use cases cleanly:

  • Medical and dental offices, maintains HVAC, refrigeration for biologics, exam room equipment, and electronic records systems through any outage duration.
  • Small data centers and server rooms, bridges the gap between utility loss and UPS runtime while preventing hard shutdowns on critical infrastructure.
  • Retail and light commercial facilities, keeps point-of-sale systems, refrigerated cases, and security systems operational during regional outages.
  • Municipal and government buildings, satisfies procurement requirements for certified, domestically assembled equipment with a full commercial warranty.
  • Light industrial and warehousing, powers lighting, access control, fire suppression systems, and essential process equipment without skipping a beat.

If you're currently comparing standby generator options for a specific facility, our team can help you validate load calculations and confirm compatibility with your existing transfer switch infrastructure. Reach out before you finalize your specification.

Why the Fortress 30kW Outperforms Air-Cooled Alternatives for Commercial Use

Air-cooled standby generators are designed for residential loads and occasional, short-duration outages. When a commercial facility needs days of continuous runtime, or when ambient temperatures push an air-cooled unit near its thermal limits, the performance gap becomes a reliability gap.

The Fortress 30kW uses a liquid-cooled engine, the same cooling architecture found in commercial and industrial generators built for sustained operation. Coolant absorbs and dissipates heat far more efficiently than ambient air, which means stable output under prolonged load and dramatically reduced engine wear over the generator's service life.

Certifications matter, too. UL 2200 listing and CSA C22.2 No.100-14 compliance aren't standard features on residential units. These marks tell your AHJ, your insurer, and your facilities standards team that this generator was tested and listed to recognized commercial safety standards.

The 6-year parts, labor, and travel warranty is another differentiator. Most alternatives cover parts only, leaving you exposed to labor and travel costs on a piece of equipment that may be installed in a remote mechanical room or rooftop pad. Briggs & Stratton's Fortress warranty covers all three, a meaningful consideration when calculating total cost of ownership.

Briggs & Stratton has manufactured power equipment in the USA for over a century. The Fortress line represents their commercial-tier engineering and is assembled domestically, supporting both supply chain reliability and serviceability through a nationwide authorized dealer network.

Briggs & Stratton 30kW Fortress standby generator interior with liquid-cooled engine and alternator

Briggs & Stratton 30kW Fortress Standby Generator Specifications

Specification Detail
SKU 076880
Power Output (LP) 30 kW / 125 A
Power Output (Natural Gas) 30 kW / 125 A
Voltage 120/240V Single Phase
Circuit Breaker 125 A
Engine Displacement 1,600 cc
Cooling System Liquid Cooled
Fuel Options Natural Gas or Liquid Propane
Fuel Consumption (LP, 50% Load) 328,000 BTU/hr
Fuel Consumption (NG, 50% Load) 293,000 BTU/hr
Sound Level 66 dB (normal operating)
Enclosure Steel
Dimensions (L x W x H) 71 in x 32.3 in x 37 in
Weight 1,000 lb
Certifications UL 2200, CSA C22.2 No.100-14
Remote Monitoring EnergyTrak (subscription required)
Power Management Symphony Choice compatible (transfer switch and modules sold separately)
Assembly Assembled and engineered in the USA
Warranty 6 years parts, labor, and travel

What's in the Box

  • Briggs & Stratton 30kW Fortress Standby Generator (SKU 076880) in steel enclosure
  • Owner's manual and installation documentation
  • Warranty registration materials

Note: Transfer switch, Symphony Choice modules, EnergyTrak subscription, and installation hardware are sold separately. Contact our team for a complete system quote.

Frequently Asked Questions About the Briggs & Stratton 30kW Fortress Generator

What does the 6-year warranty on the Fortress 30kW actually cover?

The Briggs & Stratton Fortress warranty covers parts, labor, and travel for 6 years from the date of installation. This is a full commercial warranty, not a limited parts-only policy. For facilities teams evaluating total cost of ownership, the inclusion of labor and travel costs is a meaningful financial protection over a multi-year service horizon.

Does the Briggs & Stratton Fortress 30kW generator require a transfer switch, and which one is compatible?

Yes, a transfer switch is required and is sold separately from the generator unit. The Fortress 30kW is compatible with Symphony Choice transfer switches and load management modules, which allow intelligent circuit prioritization during an outage. Our commercial power specialists can recommend the correct transfer switch configuration based on your facility's load profile and service entrance specifications.

Can the Fortress 30kW run on natural gas and liquid propane interchangeably, and does output change between fuels?

The Fortress 30kW is a true dual-fuel unit rated at 30 kW / 125 A on both natural gas and liquid propane. Output does not derate when switching between fuels, which simplifies load calculations and fuel planning. Fuel consumption differs slightly: 293,000 BTU/hr on natural gas and 328,000 BTU/hr on LP at 50% load.

Is the Briggs & Stratton Fortress 30kW certified for commercial installation and code compliance?

Yes. The Fortress 30kW carries UL 2200 listing and CSA C22.2 No.100-14 certification, two of the primary marks authorities having jurisdiction (AHJs) and commercial insurers look for during inspection and policy underwriting. These certifications confirm the unit was tested to recognized commercial generator safety standards, supporting permitting and installation approval in most jurisdictions.

What is EnergyTrak and does the Fortress 30kW come with it included?

EnergyTrak is Briggs & Stratton's remote monitoring platform that provides real-time generator status, performance data, and alert notifications accessible from any connected device. The Fortress 30kW is EnergyTrak capable, but remote monitoring service requires a separate subscription. Facilities teams and service contractors find it particularly useful for scheduled maintenance planning and verifying automatic exercise cycle completion without a physical site inspection.

Is the Fortress 30kW the right size for my small commercial building or medical office?

A 30 kW single-phase output is well-suited for small commercial facilities, medical and dental offices, small server rooms, and light municipal buildings with loads in the 25 to 30 kW range. Proper sizing always starts with a load calculation based on your facility's connected equipment, HVAC demands, and critical circuit requirements. Still have questions? Contact our power specialists before you order.

Warranty & Authorized Dealer Assurance

The Briggs & Stratton 30kW Fortress Standby Generator is backed by a 6-year parts, labor, and travel warranty, among the most comprehensive coverage available in the commercial standby generator category. As an authorized Briggs & Stratton dealer, Mighty Generators ensures your purchase qualifies for full factory warranty support and connects you with certified installation partners in your area.

Procurement teams, facilities managers, and building owners can expect detailed specification support, load sizing consultation, and post-sale technical assistance from our commercial power team. We work with contractors, engineers, and facilities departments, not just individual buyers.

Contact our commercial power specialists today to request a formal quote, confirm installation requirements, or build a complete standby power system for your facility.