G3512K Gas Generator

Gas Generator Sets

Details

Continuous Rating
1530 ekW @ 1.0pf

Fuel Type
Natural Gas & Propane

Maximum Electrical Efficiency
45.3%

Contact

Foley Equipment Sales

+1 (316) 943-4211

Request a Quote

Overview

1502 - 1530 kW Gas Generator

From natural gas to biogas, coal mine gases, or hydrogen fuel blends to support combined heat and power (CHP), emergency power, and local grid support applications, Caterpillar has a wide range of reliable gas power solutions.

Benefits

Electrical Efficiency

Industry leading 45.3% electrical efficiency on a 1.5 MW package. 

Start to Full Load Time

Faster start-to-full-load performance and improved transient response enable the G3512K to become available more quickly and adapt seamlessly to rapid load changes

Fuel Flexible

Multiple fuel options with natural gas and propane available now. Biogas, sewage and landfill gas, coal mine methane (CMM), and up to 25% hydrogen cofigurations coming in 2026

Features at a Glance

Cat G3520K Gas Engine
        
  • Robust high speed block design provides prolonged life and lower owning operationg costs
  •     
  • Designed for maximum performance on low pressure pipeline natural gas
  •     
  • Simple open chamber combustion system for reliability and fuel flexibility
  •     
  • Leading edge technology in ignition system and air/fuel ratio control for lower emission and engine efficiency
  •     
  • One electronic control module handles all engine functions: ignition, governing, air/fuel ratio control and engine protection
SR5 Generator
        
  • Designed to match performance and output characteristics of Caterpillar gas engines
  •     
  • Industry leading mechanical and electrical design
  •     
  • High efficiency
Cat Energy Control System (Cat ECS)
        
  • A cost effective but powerful system
  •     
  • Modern color touch screen
  •     
  • Meets UL6200 controls and UL2300 3rd ed. generator set package requirements
  •     
  • Local annunciation to meet NFPA 110
Emissions
        
  • Meets most worldwide emissions requirements down to 0.5 g/bhp-hr or 250 mg/Nm3 Nox level without aftertreatment
Proven System
        
  • Field proven in a wide range of applications worldwide
  •     
  • Fully prototype tested
  •     
  • Certified torsional vibration analysis available
Full Range of Attachments
        
  •  Wide range of bolt-on system expansion attachments
  •     
  • Factory designed and tested
  •     
  • Flexible packaging options for easy and cost effective installation
Worldwide Product Support
        
  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  •     
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements

Specifications

Full Specifications

Generator Set Specifications

Continuous Rating
1530 ekW @ 1.0pf

Fuel Type
Natural Gas & Propane

Maximum Electrical Efficiency
45.3%

Frequency
50 / 60 Hz

RPM
1500

Speed
1500 RPM

Frequency
50/60 Hz

Engine Specifications

Engine Model
G3512K

Displacement
3576 in³

Aspiration
TA

Bore
6.7 in

Stroke
8.5 in

Compression Ratio
10.5

Governor Type
Adem 6

Generator Set Dimensions

Length
215 in

Width
71.97 in

Height
89.49 in

Dry Weight - Genset
37,082 lb

Equipment

Standard Equipment

Cooling

  • Engine driven water pumps for jacket water and aftercooler.
  • SCAC control valve
  • Jacket water and SCAC thermostats.
  • ANSI/DN customer flange connections for JW inlet and outlet.

Control Panel

  • ECS 100 with colored HMI
  • Ethernet Telematics

Air Inlet

  • Two-element single-stage air cleaner with enclosure and service indicator.

Governing System

  • ADEM 6

Exhaust

  • Center section cooled turbocharger with Cat flanged outlet.
  • Dry exhaust manifolds, insulated and shielded.
  • Individual exhaust port and turbocharger outlet wired to Integrated Tmeperature Sensing Module (ITSM) with GECM providing alarms and shutdowns.

Fuel System

  • Electronic fuel metering valve
  • EN7462/CSAB149:3, NFPA37
  • Throttle plate, 24V DC actuator, controlled by GECM
  • Fuel system is sized for 31.5 to 47.2 MJ/NM3 dry pipeline natural gas with pressure of 10.2 to 34.5KPa to the engine fuel control valve.

Generator

  • Operation and maintenance manuals
  • Busbar connections
  • IVR - Intergrated voltage regulator
  • Paint- Caterpillar Yellow except rails gloss black
  • Parts book
  • Reactive droop
  • Winding temperature detectors
  • Crankshaft Vibration Damper and Guard
  • RH/LH Service
  • Anti-condensation space heater
  • SR5 / N9500

Lube

  • Electric Pre-lube pump

Starting/Charging

  • 24V starting motors

Ignition System

  • Integrated Cylinder Pressure Sensor (ICPS)
  • Electronic Ignition System (controlled by ADEM 6)
Optional Equipment

Control Panel

  • Load Share Module
  • ECS 200 with colored HMI
  • Cellular telematics
  • Expandable Ethernet modules
  • Remote HMI displays
  • CAN 2 connection point
  • Expandable I/O

Air Inlet

  • Off Engine Air Cleaner - Mounting Brackets and Piping

Circuit Breaker

  • LSI/LSIG/LSIG-P Long-Time, Short-Time, Instantaneous Annunciator, ground fault protect, ground fault annunciate
  • Non-par/Par Breakers
  • Rear-mounted
  • 5000A 3-Pole IEC/ULCSA Rated Circuit Breakers

Cooling

  • Coolant level drain line with valves
  • Inlet/Outlet RH and LH connections

Lube

  • Ship oil filled or dry(Ultra40)
  • SYNHP (only ship dry)
  • Oil Level Regulator

Starting/Charging

  • Battery with cables and rack (shipped loose)
  • Engine barring device
  • Jacket water heater (220/400/240/480V)
  • 60A, 24V charging alternator (requires engine driven pumps)

Exhaust

  • Muffler and spark-arresting muffler with companion flanges
  • Flange, Elbow, and Flexible Fitting
  • Exhaust Expander

Fuel System

  • Fuel filter
  • Gas pressure regulator
  • Gas Knockdown Regulator
  • Gas shutoff valve 24V, Energized-To-Run (ETR)

Generator

  • Cable access box
  • Thermostate for space heater
  • Generator space heater (with optional heater control)
  • Manual voltage control
  • NEMA/IEC Busbars
  • Bearing temperature detectors
  • Generator air filter
  • Medium and high voltage generators and attachment
  • Current transformer, differential current transformer, potential transformer
  • Low voltage extension box

General

  • Tool set
  • US AID Emblem
  • Special paint order
  • Digital diagnostic tool

Package

  • Seismic Isolators
  • Spring Isolators

Grid Code Compliance

  • 50 Hz: Germany (HV/MV), Great Britain, Italy (HV/MV), Belgium, Polan, Netherlands, Romania, Spain, France, Czech Republic, Greece, Ireland, and European Standard

Similar New Power Solutions

G3520H Gas Generator
Gas Generator Sets

G3520H Gas Generator

Continuous Rating: 2519 / 2500 ekW @ 1.0pf
Fuel Type: Natural Gas, Hydrogen Blend (up to 25%)
Maximum Electrical Efficiency: 45.30%

G3512 1000kW Gas Generator Set
Gas Generator Sets

G3512 1000kW Gas Generator Set

Gas Standby Rating: 1000 ekW @ 0.8pf
Fuel Type: Natural Gas, Hydrogen Blend (up to 5%)
Emissions/Fuel Strategy: U.S. EPA Certified for Non-Emergency Stationary Genset

750 kW Natural Gas Generator Sets:G3512 With Fast Response
Gas Generator Sets

750 kW Natural Gas Generator Sets:G3512 With Fast Response

Gas Standby Rating: 750 ekW @ 0.8pf
Fuel Type: Natural Gas, Hydrogen Blend (up to 5%)
Emissions/Fuel Strategy: U.S. EPA Certified for Non-Emergency Stationary Genset

Gas Generator G3512H
Gas Generator Sets

Gas Generator G3512H

Continuous Rating: 1515 ekW / 1505 ekW @1.0pf
Fuel Type: Natural Gas, Hydrogen Blend (up to 25%)
Maximum Electrical Efficiency: 44.90%

DG500 (3-Phase)
Gas Generator Sets

DG500 (3-Phase)

Frequency: 60 Hz
Natural Gas Rating: 500 ekW
Emissions/Fuel Strategy: U.S. EPA Certified for Stationary Emergency and Non-Emergency Application

DG100 (60 Hz)
Gas Generator Sets

DG100 (60 Hz)

Frequency: 60 Hz
Gas Standby Rating: 100 ekW
Emissions/Fuel Strategy: U.S. EPA Certified for Stationary Emergency Application

DG125 (Single-phase and 3 phase) (60 Hz)
Gas Generator Sets

DG125 (Single-phase and 3 phase) (60 Hz)

Frequency: 60 Hz
Gas Standby Rating: 125 ekW
Emissions/Fuel Strategy: U.S. EPA Certified for Stationary Emergency and Non-Emergency Application

DG150 (3 phase) (60 Hz)
Gas Generator Sets

DG150 (3 phase) (60 Hz)

Frequency: 60 Hz
Natural Gas Rating: 150 ekW
Emissions/Fuel Strategy: U.S. EPA Certified for Stationary Emergency and Non-Emergency Application

G3520 2000kW Gas Generator Set
Gas Generator Sets

G3520 2000kW Gas Generator Set

Gas Standby Rating: 2000 ekW @ 0.8pf
Fuel Type: Natural Gas, Hydrogen Blend (up to 5%)
Emissions/Fuel Strategy: U.S. EPA Stationary Non-Emergency Certified

CG260-16 Gas Generator Set
Gas Generator Sets

CG260-16 Gas Generator Set

Continuous Rating: 4300 / 4000 ekW @1.0pf
Fuel Type: Natural Gas, Biogas, Coal Gas, Associated Gas, Synthesis Gas, Hydrogen Blend (to 25%)
Maximum Electrical Efficiency: 44.1 / 43.8%