Triton Power · TP-NG

Triton Power TP-NG250-S-K-UL

250 kW standby / 225 kW prime · Natural Gas · Liquid-cooled

250 kW natural gas generator with PSI 13L engine. UL2200 listed for commercial and industrial standby applications.

Standby power
250 kW / 225 kW prime
Voltage options
120/208V, 277/480V
Frequency / Phase
60 Hz · 3-phase
Engine
PSI 13L · 13L
EPA / Emissions
EPA Stationary Spark Ignition
Alternator
Leroy Somer LSA46.3

Overview#

The Triton Power TP-NG250-S-K-UL is a 250 kW natural gas standby generator powered by a PSI (Power Solutions International) 13L turbocharged inline-6 engine running at 1800 RPM. This unit is part of Triton's EPA-certified natural gas generator lineup, UL2200 listed for the US and Canadian markets. The Leroy Somer Class H insulation alternator delivers 250 kW standby and 225 kW prime power in three-phase configuration.

The PSI 13L inline-6 represents a step up to a larger displacement platform within Triton's natural gas range, providing the torque and thermal capacity needed for sustained operation at 250 kW. Available at 120/208V and 277/480V, the unit meets EPA Stationary Spark Ignition emissions standards. Sound output is rated at 64 dBA, and the inline-6 configuration provides inherently smooth operation.

Our service experience#

The PSI 13L inline-6 is a well-regarded engine in the stationary gas generation market, used across multiple generator OEMs. At 250 kW, this unit covers full-facility backup for larger commercial buildings. The inline-6 layout simplifies valve adjustment and ignition system service compared to V-configuration engines, and the larger displacement provides comfortable operating margins at the rated output.

Engineering specifications

Acoustic

Sound @ 7m, full load
64 dBA

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Estimate runtime for the Triton Power TP-NG250-S-K-UL

Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.

Estimate runtime on this tank

Fuel demand at 75% load

2,625,000 BTU/hr2625.0 cf/min @ 1,000 BTU/cf

On utility natural gas the runtime is generally unlimited provided the supply line and meter can deliver this BTU/hr at the engine's required inlet pressure (typically 5–14" WC residential, up to 5 psi commercial). Confirm against the OEM's published fuel-pressure spec.

Frequently Asked Questions

What is the engine configuration of the TP-NG250?
The TP-NG250-S-K-UL uses a PSI (Power Solutions International) 13L turbocharged inline-6 engine. The inline-6 configuration provides smooth operation with inherently balanced firing order, reducing vibration compared to V-configuration engines. At 13 liters of displacement, this engine provides ample torque for the 250 kW standby rating.
How much natural gas does a 250 kW generator consume per hour?
A 250 kW natural gas generator typically consumes approximately 3,000-3,500 cubic feet per hour (CFH) at full load, depending on gas BTU content and altitude. This requires a dedicated high-capacity gas line and meter. The gas utility should perform a load study to confirm adequate supply before installation.
What applications is the TP-NG250 best suited for?
The 250 kW rating serves mid-size to large commercial facilities including office complexes, retail centers, manufacturing plants, and multi-tenant buildings. Natural gas fuel is ideal for permanent standby installations where continuous fuel supply from the utility grid eliminates the need for diesel tank permits, fuel deliveries, and fuel degradation management.

Why we recommend Triton Power

Triton Power is our value brand for mobile and portable diesel generators, and an emerging option for industrial standby. When MQ Power's pricing is a stretch or lead times are too long, Triton delivers comparable capability at a lower price point with faster availability.

We are developing our Triton Power sales relationship and building fleet experience. Every engine platform Triton uses — Perkins, John Deere, Kubota, Scania, Volvo — is one we already service daily across other brands. Triton's open architecture means our technicians can maintain these units with standard tooling and widely available parts.

See all Triton Powergenerators →

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