C Series-Natural Gas Generator Sets

Sustainable, Continuous Power Solutions with Cummins Gas Technology.

Enerzip® C Series Natural Gas generator sets (41kVA – 1650kVA) are powered by genuine Cummins® engines, engineered for cost-effective continuous duty. Ideal for oil fields, industrial plants, and independent power projects (IPP), this series converts natural gas into reliable 50Hz electricity with optimized operating cost.

Genuine Cummins Gas Power: Proven lean-burn gas engines (B/L/K Series) designed for high durability and 24/7 operation.
Fuel Flexibility: Operates efficiently on Pipeline Natural Gas, CNG, and regasified LNG.
Safety Integrated: Features high-precision gas trains (DUNGS/Kromschröder) for leak-free, stable fuel delivery.
Cost & Eco-Efficient: Delivers significant fuel savings and lower emissions (Low NOx) compared to diesel units
Smart Control: Supports mains synchronization, peak shaving, and parallel operation for maximum grid flexibility.
CHP Ready: Easily integrates with heat recovery systems to boost total efficiency to 85%+.

Description

Enerzip® C Series: The Definitive Industrial Natural Gas Generator Sets

In the demanding world of continuous power, Natural Gas Generator Sets are not simply “converted diesel units”—they are sophisticated systems requiring precise thermodynamic balance. The Enerzip® C Series represents the pinnacle of this technology. We utilize Genuine Cummins Gas Engines (sourced from both CCEC joint ventures and Original Imported facilities in the USA/UK) as the power core. By integrating these dedicated engines with our “System-First” engineering, we deliver a Natural Gas Generator that masters the complex physics of combustion—balancing Air-Fuel Ratio, ignition timing, and thermal loads for 24/7 reliability.

1. The Power Core: Dedicated Gas Architecture

The heart of every Enerzip Natural Gas Generator is a dedicated Cummins engine, engineered for the specific physics of methane combustion rather than just a retrofitted diesel block.

Optimized Compression: Unlike diesel engines which require high compression ( $16:1$ to $22:1$ ) for auto-ignition, our Natural Gas Generator Sets utilize engines with a lowered compression ratio ( $9:1$ to $12:1$ ). This critical design change prevents pre-ignition and engine “knocking” (detonation), ensuring smooth operation.
High-Temp Material Science: To withstand the higher combustion temperatures inherent to a Natural Gas Generator, our engines utilize Hardened Valve Seats and High-Nickel Alloy components to prevent recession and extend overhaul intervals.

2. Ignition System: The Spark of Precision

This is the fundamental difference. Since a Natural Gas Generator cannot auto-ignite via compression like diesel, the C Series is equipped with a high-energy ignition architecture.

Spark-Ignited Technology: We replace mechanical diesel injectors with a sophisticated Spark Plug and Ignition Coil system for each cylinder.
Digital Control (ICM): Utilizing advanced Ignition Control Modules (such as Altronic or Motortech), we control the spark timing down to the microsecond. This ensures the Natural Gas Generator Set runs at peak efficiency, regardless of load changes or methane number fluctuations.

3. Gas Train & Air Supply: Perfect Stoichiometry

Replacing the diesel fuel pump is a precision Gas Train designed to manage the invisible flow of fuel, ensuring the safety of the Natural Gas Generator.

The Elite Gas Train: We exclusively partner with global leaders like DUNGS (Germany) and Kromschröder. This integrated system features Double-Block Solenoid Valves and Zero-Pressure Regulators to step down high-pressure pipeline gas to a safe, stable working pressure.
Precise Mixing: Advanced Electronic Throttle Bodies and Mixers ensure the fuel and air are pre-mixed to the perfect ratio before entering the combustion chamber of the Natural Gas Generator.

4. Control Systems: The Intelligent “Smart Brain”

Controlling a high-performance Natural Gas Generator Set is far more complex than a diesel unit. It requires a “Closed-Loop” logic to manage the chemistry of combustion.

Advanced Logic: Using ComAp or DeepSea controllers, the system acts as a central computer. It constantly analyzes data from Oxygen Sensors (Lambda) and Knock Sensors, micro-adjusting the throttle and gas mixer in real-time.
Integrated Safety Matrix: The controller is hardwired to Gas Leak Detectors and Fire Alarms. If a leak is detected, it instantly triggers the main solenoid valve to shut off the fuel supply to the Natural Gas Generator.
Grid Synchronization: The system supports automatic Mains Synchronization, allowing our Natural Gas Generator Sets to parallel with the utility grid for Peak Shaving applications.

5. Cooling Systems: 50°C Tropical Grade Management

A Natural Gas Generator inherently rejects more heat through the exhaust and jacket water than a diesel engine. Standard cooling is not enough.

Oversized Capacity: We specify Oversized Radiators exclusively sourced from premium manufacturers like Weifang Sinrui or Jiangsu Aksa China. These cores feature 20-30% more surface area to handle the high thermal load.
50°C Ambient Standard: Every unit in our Natural Gas Generator Sets lineup is rated for 50°C Ambient Temperature. Whether installed in a desert oil field or a hot mechanical room, our cooling system guarantees the unit can run at 100% Continuous Load without de-rating.

6. Alternator: Grid-Synchronization Ready

The C Series converts mechanical power into “Utility Grade” electricity suitable for sensitive industrial applications.

The Elite Supply Chain: Customers can specify alternators from LEROY SOMER, STAMFORD, or ENGGA.
Harmonic Suppression: All alternators are standardized with 2/3 pitch windings. This is critical for Natural Gas Generator Sets operating in parallel with the utility grid, ensuring your facility’s power quality remains pure and compliant.

7. Frame & Vibration: Enerzip® Manufacturing Prowess

Structural rigidity is key for long-term alignment, especially in the continuous duty applications typical for a Natural Gas Generator.

Heavy-Duty Chassis: Base frames are produced on our own Heavy-Duty Sheet Metal Production Line using high-grade structural steel and precision robotic welding.
Vibration Isolation: We utilize high-performance Anti-Vibration Mounts (AVM) specifically tuned for the lower frequency of gas engines. This isolates the frame and onboard electronics from micro-vibrations, significantly extending the lifespan of the Natural Gas Generator Set.

8. Silent Canopy: Safety & Ventilation

The Enerzip® Custom enclosure is designed not just for silence, but for the rigorous safety requirements of Natural Gas Generator Sets.

Gas Safety Ventilation: Unlike standard diesel canopies, our gas enclosures feature Enhanced Air-Flow designs to prevent any potential gas accumulation inside the housing.
Safety Integration: The canopy design allows for easy integration of Explosion-Proof Lighting and gas detection systems, ensuring compliance with strict industrial safety standards.

9. Exhaust & CHP: Energy Efficiency

We prioritize total energy utilization. The C Series is designed to turn waste into value.

CHP Ready: The exhaust system is engineered to be compatible with Heat Recovery Units (Heat Exchangers).
Efficiency Boost: By capturing high-temperature exhaust heat to produce hot water or steam, users can raise the total system efficiency from ~40% to over 85%. This capability makes Enerzip Natural Gas Generator Sets one of the fastest ROI investments in the energy sector.

Why Choose Enerzip® Natural Gas Generator Sets?

Choosing the Enerzip® C Series is an investment in long-term profitability. By combining the legendary durability of the Cummins engine with Enerzip’s heavy-duty manufacturing and precision gas train integration, we deliver a Natural Gas Generator that pays for itself through lower fuel costs. Whether you are shaving peak demand charges in a factory or powering a remote oil field, Enerzip® provides the engineering depth to turn natural gas into reliable, continuous profit.

For grid-parallel operation, peak shaving, or CHP applications, the C Series can be seamlessly integrated with Enerzip® Paralleling & Grid-Connect Systems to achieve intelligent load management and utility synchronization.

Genset Model	ESP(KVA)	ESP(KW)	PRP(KVA)	PRP(KW)	Gas Cons(Nm³/h 100%/75%)	LWH(mm) Open Type	LWH(mm) Silent Type	Engine Model	Country of origin	Cyl Arrangement	Displacement(L)	Gov	Cooling
C41N5	41	33	37.5	30	11.5/8.8	1800×870×1450	2200×940×1460	B3.9G-G45	China	4L	3.9	E	Water Cooling
C69N5	69	55	62.5	50	18.5/14.2	2200×870×1580	2400×1000×1560	B5.9G-G100	China	6L	5.9	E	Water Cooling
C110N5	110	88	100	80	21.0/16.5	2300×870×1580	3000×1240×1760	B5.9G-G100	China	6L	5.9	E	Water Cooling
C124N5	124	99	112.5	90	29.5/28.8	2350×1000×1580	3300×1400×1950	C8.3G-G145	China	6L	8.3	E	Water Cooling
C138N5	138	110	125	100	29.5/28.8	2350×1000×1580	3300×1400×1950	C8.3G-G145	China	6L	8.3	E	Water Cooling
C165N5	165	132	150	120	29.5/28.8	2400×1000×1580	3300×1400×1950	C8.3G-G145	China	6L	8.3	E	Water Cooling
C193N5	193	154	175	140	41.5/31.8	2500×1010×1580	3300×1400×1950	L8.9G-G176	China	6L	8.9	E	Water Cooling
C220N5	220	176	200	160	41.5/31.8	2500×1010×1580	3300×1400×1950	L8.9G-G176	China	6L	8.9	E	Water Cooling
C275N5	275	220	250	200	52.0/40.5	3200×1200×1800	4000×1800×2150	NT855G-G220	China	6L	14	E	Water Cooling
C344N5	344	275	312.5	250	66.5/51.2	3900×1700×1850	4300×2100×2300	K19G-G290	China	6L	18.9	E	Water Cooling
C413N5	413	330	375	300	74.5/56.2	3900×1700×1850	4700×2100×2450	K19G-G330	China	6L	18.9	E	Water Cooling
C550N5	550	440	500	400	125.0/95.8	4600×2300×2600	ISO 40ft Container	K38G-G550	China	12V	37.8	E	Water Cooling
C688N5	688	550	625	500	125.0/95.8	4800×2300×2600	ISO 40ft Container	K38G-G550	China	12V	37.8	E	Water Cooling
Genset Model	ESP(KVA)	ESP(KW)	PRP(KVA)	PRP(KW)	Gas Cons(Nm³/h 100%/75%)	LWH(mm) Open Type	LWH(mm) Silent Type	Engine Model	Country of origin	Cyl Arrangement	Displacement(L)	Gov	Cooling
C41N5	41	33	37.5	30	11.5/8.8	1800×870×1450	2200×940×1460	B3.9G-G45	China	4L	3.9	E	Water Cooling
C69N5	69	55	62.5	50	18.5/14.2	2200×870×1580	2400×1000×1560	B5.9G-G100	China	6L	5.9	E	Water Cooling
C110N5	110	88	100	80	21.0/16.5	2300×870×1580	3000×1240×1760	B5.9G-G100	China	6L	5.9	E	Water Cooling
C124N5	124	99	112.5	90	29.5/28.8	2350×1000×1580	3300×1400×1950	C8.3G-G145	China	6L	8.3	E	Water Cooling
C138N5	138	110	125	100	29.5/28.8	2350×1000×1580	3300×1400×1950	C8.3G-G145	China	6L	8.3	E	Water Cooling
C165N5	165	132	150	120	29.5/28.8	2400×1000×1580	3300×1400×1950	C8.3G-G145	China	6L	8.3	E	Water Cooling
C193N5	193	154	175	140	41.5/31.8	2500×1010×1580	3300×1400×1950	L8.9G-G176	China	6L	8.9	E	Water Cooling
C220N5	220	176	200	160	41.5/31.8	2500×1010×1580	3300×1400×1950	L8.9G-G176	China	6L	8.9	E	Water Cooling
C275N5	275	220	250	200	52.0/40.5	3200×1200×1800	4000×1800×2150	NT855G-G220	China	6L	14	E	Water Cooling
C344N5	344	275	312.5	250	66.5/51.2	3900×1700×1850	4300×2100×2300	K19G-G290	China	6L	18.9	E	Water Cooling
C413N5	413	330	375	300	74.5/56.2	3900×1700×1850	4400×2100×2450	K19G-G330	China	6L	18.9	E	Water Cooling
C550N5	550	440	500	400	125.0/95.8	4100×2100×2100	4200×2300×2300	K38G-G550	China	12V	37.8	E	Water Cooling
C688N5	688	550	625	500	125.0/95.8	4200×2300×2100	4300×2300×2300	K38G-G550	China	12V	37.8	E	Water Cooling
C688N5A	688	550	625	500	170/130	4200×2300×2100	4300×2400×2300	K38N-G5	China	12V	38	ECM	Water Cooling
C825N5	825	660	750	600	175/135	431520202235	451524202435	K38N-G6	China	12V	38	ECM	Water Cooling
C963N5	963	770	875	700	215/163	431520202235	451520202535	K38N-G7	China	12V	38	ECM	Water Cooling
C1100N5	1100	880	1000	800	220/170	428019602310	458019602510	K38N-G8	China	12V	38	ECM	Water Cooling
C1238N5	1238	990	1125	900	250/195	420020602165	ISO 20ft Container	K50N-G1	China	16V	50.3	ECM	Water Cooling
C1375N5	1375	1100	1250	1000	275/215	420020602165	ISO 40ft Container	K50N-G8	China	16V	50.3	ECM	Water Cooling
C1513N5	1513	1210	1375	1100	300/235	495020002580	ISO 40ft Container	K50N-G9	China	16V	50.3	ECM	Water Cooling
C1650N5	1650	1320	1500	1200	305/240	542021402500	ISO 40ft Container	K50N-G10	China	16V	50.3	ECM	Water Cooling

Technical Notes – C Series (Cummins Powered):

1. All technical data is based on Cummins® gas engine specifications and Enerzip® system integration standards. Final performance values may vary depending on alternator selection, control strategy, and site conditions.

2. Rated power is defined in accordance with ISO 8528 and ISO 3046 standards under standard reference conditions (ambient temperature 25°C, altitude 1000 m, relative humidity 30%).

3. Gas consumption figures are provided in Nm³/h based on Cummins reference fuel specifications. Actual consumption may vary depending on methane number, calorific value, and load profile.

4. Continuous operation capability (COP) and CHP performance depend on cooling system configuration and heat recovery design. Final CHP efficiency shall be confirmed during project engineering.

5. Dimensions, weights, and acoustic values are indicative and may vary depending on enclosure type, radiator layout, emission configuration, and optional accessories.

Applications

Enerzip® C Series – The Global Standard for Reliable Gas Power Powered by Cummins® Global Platform | Versatile & Durable (41kVA – 1650kVA)

With an expansive output range from 41kVA to 1650kVA, the Enerzip® C Series is the most versatile lineup in our clean energy portfolio. Powered by the legendary Cummins® gas engine platform, these Natural Gas Generator Sets are engineered to bridge the gap between rugged industrial durability and modern sustainability. Whether handling the continuous grind of a textile factory or the critical backup of a data center, the C Series transforms power from a cost to a competitive advantage.

Here is how the C Series powers the world’s most demanding sectors:

1. Industrial Manufacturing

Slashing Operational Costs (OPEX) For 24/7 manufacturing plants (Textiles, Ceramics, Plastics), electricity is often the second largest expense after raw materials. Diesel is too expensive for baseload power, and grid tariffs can be punishing.

The Enerzip Advantage: The C Series Natural Gas Generator is built on heavy-duty diesel engine blocks, making it robust enough for continuous duty (COP). By switching from the grid or diesel to cheap pipeline natural gas or LNG, manufacturers can reduce their energy costs by 30-50%.
Key Application: Textile Mills, Ceramic Kilns, Plastic Injection Molding Plants.

2. Commercial Real Estate & CHP

Efficiency via Cogeneration Hotels, shopping malls, and office towers require more than just electricity—they need massive amounts of heat (for hot water) and cooling (for HVAC).

The Enerzip Advantage: The C Series is perfectly suited for Combined Heat and Power (CHP). By capturing waste heat from the exhaust and jacket water, the total efficiency of the Natural Gas Generator Set jumps from ~40% to over 85%. Furthermore, relying on pipeline gas eliminates the safety risk of storing thousands of liters of diesel in a crowded city basement.
Key Application: 5-Star Hotels (Power + Hot Water), Shopping Malls, Office Towers.

3. Oil & Gas Fields

Monetizing Waste Gas In remote oil fields, “Associated Gas” (flare gas) is often burned off as waste, which is both an economic loss and an environmental liability.

The Enerzip Advantage: The Cummins engines used in the C Series are legendary for their tolerance of “dirty” fuel. They can run reliably on Wellhead Gas with variable methane content. An Enerzip C Series Natural Gas Generator turns this waste gas into free electricity for drilling rigs and worker camps, eliminating complex fuel logistics.
Key Application: Oil Wellheads, Gas Compression Stations, Drilling Camps.

4. Data Centers & Financial Tech

Unlimited Runtime & ESG Compliance While diesel is known for fast starting, it is limited by fuel tank size (typically 12-24 hours). When major disasters strike, refueling trucks may not be able to reach the site.

The Enerzip Advantage: A C Series Natural Gas Generator Set is fed by the underground utility pipeline network. This provides virtually “Unlimited Runtime“ during extended grid outages caused by hurricanes or winter storms. Additionally, the cleaner combustion profile helps tech giants meet their strict ESG (Environmental, Social, and Governance) carbon reduction goals.
Key Application: Green Data Centers, Bank Headquarters, Edge Computing Facilities.

5. Public Infrastructure & Utilities

Grid Support & Peak Shaving Municipalities and utility companies face the challenge of managing peak electrical loads to prevent blackouts.

The Enerzip Advantage: C Series units utilize advanced digital controls for fast synchronization. They allow facilities to perform “Peak Shaving”—disconnecting from the grid during expensive peak tariff hours and running on their own efficient Natural Gas Generator. In sewage treatment plants, these versatile engines can even run on Biogas produced from the waste itself.
Key Application: Wastewater Treatment (Biogas), Municipal Grid Support, Peak Shaving Stations.

FAQ

Is the C Series suitable for true 24/7 continuous baseload operation?

Yes. The Enerzip® C Series is built on dedicated Cummins gas engine platforms (B / L / K Series) specifically designed for continuous duty rather than converted diesel engines. These engines use optimized compression ratios, hardened valve seats, and gas-specific combustion systems, allowing stable operation at 7,000–8,000 hours per year when properly maintained. This makes the C Series suitable for industrial baseload, IPP projects, and CHP systems where downtime is unacceptable.

How sensitive is the C Series to natural gas quality?

The C Series tolerates a wide range of gas qualities, but optimal performance requires stable methane number and calorific value. Pipeline natural gas, LNG vaporized gas, and treated associated gas are all acceptable when within Cummins reference limits. For fluctuating gas quality applications (oilfields or biogas), Enerzip recommends confirming gas analysis during project engineering to avoid derating or ignition instability.

Can the C Series operate in parallel with the utility grid?

Yes. The C Series supports grid-parallel operation, peak shaving, and island mode when equipped with ComAp or DeepSea synchronization controllers. The alternator and governor configuration is selected specifically to meet grid-code stability requirements, making it suitable for factories, data centers, and utility-support applications.

CHP integration standard or optional?

CHP is optional but fully supported. The engine cooling and exhaust systems are designed to allow heat recovery from both jacket water and exhaust gas. Final CHP efficiency depends on heat exchanger design, load profile, and operating hours, which are confirmed during system engineering rather than assumed from catalog data.

How does maintenance compare to diesel generators?

Maintenance intervals are typically longer than diesel equivalents due to cleaner combustion. However, gas engines require low-ash lubricating oil and regular ignition system inspection. When operated within design limits, overhaul intervals commonly reach 30,000–50,000 hours.

Is the C Series suitable for high ambient temperature regions?

Yes. All C Series units are designed with 50°C tropical cooling margins, provided that ventilation and radiator configuration follow Enerzip installation guidelines. Power derating may apply only at extreme altitude or insufficient airflow conditions.

Related Products

Paralleling & Grid-connect Systems

Automatic Transfer Switches (ATS)

E Series – Biogas Generator Sets

C Series – Biogas Generator Sets

W Series – High Voltage Generators

Y Series – High Voltage Generators

MS Series – High Voltage Generators

M Series – High Voltage Generators

P Series – High Voltage Generators

C Series – High Voltage Generators

February 3, 2026

Genset cooling and ventilation requirements for 40–50°C sites: define airflow and external static pressure limits, reduce recirculation risk, and prove performance with FAT/SAT thermal logging before commissioning.

Genset FAT/SAT Testing & Commissioning Guide

February 2, 2026

Genset FAT/SAT testing guide for standby generator systems: define event-based acceptance targets, run RFQ-ready FAT/SAT checklists, log voltage/frequency dips, ATS transfer timing, UPS recharge, thermal runs, and paralleling evidence to reduce commissioning rework and downtime.

Understanding ISO 8528 Generator Set Ratings (ESP vs PRP vs COP)

February 2, 2026

ISO 8528 generator ratings explained for EPC RFQs: ESP vs LTP vs PRP vs COP, duty cycle and load profile, derating factors, and copy/paste wording to prevent disputes.

How to Size an Industrial Backup Generator (kW vs kVA, ESP/PRP)

December 22, 2025

Learn how to size an industrial backup generator with a project-grade workflow: kW vs kVA, ESP/PRP/COP ratings, motor starting, step loads, site derating, ATS, load shedding & paralleling.

Generator Specification Checklist for EPC Projects

December 22, 2025

Use this generator specification checklist to build an RFQ-ready genset scope for EPC projects. Define duty cycle, load profile, ATS/paralleling, site derating, and FAT/SAT acceptance targets to reduce downtime risk and avoid oversizing.

Industrial Generator TCO: Why “Cheap” Gensets Cost More

December 22, 2025

Industrial generator TCO guide for procurement and EPC teams: compare lifecycle cost drivers—fuel consumption, maintenance & spares, downtime risk, ATS/load shedding/paralleling scope, and FAT/SAT acceptance testing—to avoid “cheap” gensets becoming expensive.

Backup Power Architecture for Data Centers & Hospitals

December 20, 2025

Learn proven backup power architecture patterns for data centers and hospitals: ATS vs UPS roles, N+1 paralleling, staged load pickup, load shedding, and RFQ-ready FAT/SAT acceptance targets to reduce commissioning surprises.