Caterpillar Announces New EPA Certification for 1000KW Natural Gas Generator Set


Caterpillar Energy Solutions is pleased to announce the Cat® G3512 generator set is now EPA Certified for use in Emergency and Non-Emergency Applications at 1 g/bhp-hr NOxemissions with improved power quality. Rated for standby or continuous power at 750 ekW or 1000 ekW at 60 Hz, the G3512 is engineered to meet a full suite of critical market standards including NFPA 110 Level 1 Type 10 compatibility, and a UL 2200 listing. The G3512 series conforms to ISO 8528-5 G3 load acceptance criteria, improving transient and steady state performance.

“Our G3512 generator is uniquely engineered for flexible applications, where a single unit is used for both standby and load management operations,” said Mike Yohe, Caterpillar product development manager. “This generator was designed for maximum performance on low pressure gaseous fuel supply. The robust high-speed block design provides prolonged life of the unit and lowers overall owning and operating costs for our customers,” said Yohe.

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The G3512 is ideal for load management and is suitable for office buildings, data centers, retail complexes, schools, government buildings, universities and research facilities.

With an updated package design, the G3512 is modeled after the diesel solution to minimize installation costs and commissioning time on-site. A high-power density 12-cylinder engine offers market leading load acceptance and transient response. Designed for reliability, this engine is built on Caterpillar’s legendary 3500 platform technology and features a robust design with steel pistons and a protection monitoring system.

Featuring Caterpillar’s EMCP 4.3 generator set controller, the G3512 easily integrates with building management systems. The expanded set of features also includes complete SR5 generators, gas train, package-mounted radiators and simplified wiring connections.

The G3512 is compatible with NFPA 110 Level 1 Type 10 applications, where backup power is required for mandatory building functions such as egress lighting, elevators, ventilation or data equipment, among others. The G3512 generator set starts and accepts power load in as quickly as 6.5 seconds, depending on conditions at the site.

Caterpillar is leading the power generation provider with market leading power systems engineered to deliver unmatched flexibility, expandability, reliability and cost-effectiveness. With parts and service available globally, Caterpillar offers worldwide product support through its comprehensive service and dealer network, where technicians are trained to service every aspect of the equipment.

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G3512 Generator Set

About Caterpillar Energy Solutions

With its two brands, MWM and Cat, Caterpillar Energy Solutions stands for highly-efficient and eco-friendly solutions for distributed power generation and manufactures gas engines, electricity power plants, as well as CHP plants. As part of the Caterpillar Global Power Solutions Division, Caterpillar Energy Solutions today commands a leading market position in the field of highly efficient, ecologically advanced distributed energy solutions. Thus, we serve our customers around the globe as a reliable partner for proven and sustained added value in the implementation of power plant projects. Our products are the result of more than 145 years of experience in the development and optimization of gas engines and generator sets for natural gas, biogas and other special gases.

About Caterpillar

For more than 90 years, Caterpillar Inc. has been making sustainable progress possible and driving positive change on every continent. Customers turn to Caterpillar to help them develop infrastructure, energy and natural resource assets. With 2017 sales and revenues of $45.462 billion, Caterpillar is the world’s leading manufacturer of construction and mining equipment, diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. The company principally operates through its three primary segments – Construction Industries, Resource Industries and Energy & Transportation – and also provides financing and related services through its Financial Products segment. For more information, visit To connect with us on social media, visit
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