CAT ® G3500K Series

Eneria / Our offer / Cogeneration / CAT ® G3500K Series

CAT G3500K Series – Gas cogeneration sets

Efficient solutions for district heating

The new G3500K series for natural gas has been modernized to better meet the most demanding challenges. This innovative, next-generation generator set delivers higher performance at lower costs.
The G3520K natural gas model has been built with more durable components than previous generations, while remote asset monitoring ensures peace of mind. Improved serviceability and greater flexibility make the K series the right choice for your business.

ENERGY COST SAVINGS

The K Series delivers best-in-class electrical efficiency, producing more power at a lower total fuel cost, which translates into a lower total cost of ownership (TCO). It also features increased thermal efficiency (an improvement of 2.8%) and total efficiency approaching 90% in cogeneration (CHP) applications.
FLEXIBILITY

K Series generator sets operate at 100% rated power on a wide range of fuels, including natural gas, propane, 25% hydrogen blends, coal mine methane (CMM), and medium-quality biogas. They can also operate at MN 60 methane number without derating. Each unit is equipped with the integrated Cat Energy Control System (ECS), providing advanced intelligent power management.
PERFORMANCE

K Series generator sets start up and accept 100% load within 4.5 minutes and can operate at higher altitudes and in higher ambient temperatures than previous models. You can rely on this robust generator set to ensure business continuity, while its compact design facilitates servicing. The K Series has undergone extensive testing and is fully compliant with major global grid standards.

Four reasons to choose the new G3500K gas generator

1. CHP-Ready Achieves up to 90% total efficiency, reduces fuel costs, and supports site-wide emission targets. When used in a cogeneration (CHP) installation, the G3520K allows waste heat recovery for other processes.

2. Ready for any application and location The G3520K operates reliably in extreme ambient temperatures and at high altitudes, making it an ideal solution for both remote locations and urban environments worldwide. Heatwaves, frost, high peaks, city centers, or off-grid locations—wherever it is installed, it reliably meets energy demand.

3. Ready for continuous operation and high loads The G3520K delivers continuous power, starts faster, accepts higher loads, and reaches full output 40% faster than previous models. It also features improved peak load sharing capability, making it an excellent choice for microgrid applications.

4. Ready for monetization Generate additional economic value by using the G3520K to avoid peak energy charges and/or by potentially generating revenue through participation in Demand Side Response (DSR) programs.

Fuel flexibility

Total efficiency

High-pressure intake air system

Load acceptance time

Electrical efficiency

Fuel Options
• Natural gas, Propane
• From Q3 2025: 25% H₂, coal mine gas, medium-quality biogas

Efficiency Improvements
• New aftercooler providing additional heat transfer from the engine block
• Total efficiency: H 85.9% → K 89.3%*
* Standard configuration – exhaust gas cooled to 120°C, without LT circuit

Performance Enhancements
• Increased compression ratio
• Improved turbocharger performance
• Faster 100% load acceptance
• Exhaust system changes (HR – High Response version):
o H: 5–10 min → K: 4.5–6 min
• Increased ISO electrical efficiency of the engine:
o HE: H 44.0% → K 45.5%

Load acceptance time
• Improvement of 100% load acceptance time
• Change in the exhaust system (applies to the HR – High Response version):
H: 5–10 min → K: 4.5–6 min

Electrical efficiency
• Increase in engine ISO electrical efficiency – HE:
H: 44.0% → K: 45.5%

Generator set specification

Continuous power2567 / 2552 eKW @ 1.0 pf
Fuel typeNatural gas and propane
Maximum electrical efficiency46.0%
Frequency50 / 60 Hz
Speed1500 rpm

Engine specification

Engine modelG3520K
Displacementapprox. 97.6 l
AspirationTurbocharged & aftercooled (TA)
Boreapprox. 17.02 cm
Strokeapprox. 21.59 cm
Compression ratio10.5:1

Dimensions

Length7.37 m
Width1.83 m
Height2.46 m
Dry weight23,700 kg

Bergerat Monnoyeur Sp. z o.o. processes, as a data controller, your data concerning your navigation on the Website through the use of cookies on this Website.

The use of these cookies is intended to: improve the quality of your Internet use by identifying you each time you connect to the Website and providing you with personalized services tailored to your needs or to allow Bergerat Monnoyeur Sp. z o.o. to conduct statistical studies on the use of the Website by Internet users.

By clicking the button “Accept all cookies”, you consent to the use of these cookies. You can change your preferences on our Website at any time.

More information, including how to manage these cookies, can be found in our Cookie Policy available here.

Pokaż więcej

I consent to the processing of my personal data for the purpose of processing the application.*

Yes, I want to receive from Bergerat Monnoyeur Sp. z o.o. offers and trade correspondence sent by electronic means.

Yes, I want to receive from the MONNOYEUR Group offers and trade correspondence sent by electronic means.

Yes, I want to receive from business partners of the MONNOYEUR Group offers and commercial correspondence sent by electronic means.

Privacy policy

The personal data collected via the www.eneria.pl website (hereinafter referred to as “the Website”) will be processed by Bergerat Monnoyeur Sp. z o.o., the data controller, for the purpose of handling your inquiry. Information marked with an asterisk is required.

According to the applicable personal data protection regulations, you have the right:
– of access to your personal data (and) of rectification, erasure and portability of your personal data;

– to request restriction of processing of your personal data and to object to processing of your personal data.

At any time you may withdraw your consent to the processing of your personal data. To do this, please send an e-mail to aktualizacja.rezygnacja@eneria.pl.

You have also the right to lodge a complaint with a regulatory body, such as the President of the Personal Data Protection Office, if the applicable personal data protection regulations are violated. To obtain more detailed information on data processing, read our Privacy policy.

Send

CAT^® Seria G3500K