Key Specifications
Natural Gas vs. Diesel Generator Comparison(3 MW Output)
| Feature | Natural Gas System (Based on your Specs) | Typical 3 MW Diesel Generator | Key Advantage of Natural Gas System |
| Fuel Source | Natural Gas (pipeline, associated gas, etc.) | Diesel Fuel (stored on-site in tanks) | Lower, More Stable Cost and On-site Reliability (if connected to a pipeline). No need for large, environmentally sensitive fuel storage tanks. |
| Emissions | Low emissions, supports waste-gas utilisation | Higher NOx and Particulate Matter (PM) emissions | Cleaner Burning for stricter environmental regulations and indoor/urban operation. |
| Electrical Efficiency (Thermal) | Approx. 40% | Approx. 40% - 42% | Comparable to high-quality diesel. |
| Total Efficiency (CHP/Cogeneration) | Approx.90%(High Fuel Utilisation) | Typically 40% (unless designed for CHP) | Extreme Cost Savings by utilizing waste heat for facility needs(steam, hot water, cooling). |
| Load Response Time | Less than 3 seconds | Typically < 10 s for full load | Superior performance for critical loads like Data Centers, where even a few extra seconds of frequency dip are unacceptable. |
| Design | Containerised, Modular (6 units in parallel) | Often a single, large, fixed unit | High Redundancy, Scalability, and Maintenance Flexibility (take one unit offline, the others run). |
| Fuel Flexibility | Uses clean pipeline CH4 but can adapt to Associated Gas (Flare Gas) | Diesel only | Monetizes Waste Gas in remote oil & gas fields, turning an environmental liability into a power source. |

Applications & Use Cases
Oil & Gas Fields / Mining Sites
In remote or harsh environments, this 3 MW parallel generator system ensures the continuous supply of power needed for drilling rigs, processing units and mining operations. The six‑unit configuration delivers redundancy and high uptime. The containerised modules simplify on‑site transport and installation even in rugged terrain.
Data Centres / Hospitals
For critical infrastructure requiring zero downtime, the 3 MW system delivers high operational availability. With near‑instantaneous < 3 s load response and fuel flexibility, it supports servers, medical equipment and other essential loads around the clock.
Industrial Parks / Utility Micro‑grids
Industrial parks often face variable fuel supply situations or associated/vented gas streams. This system supports methane‑rich natural gas, associated gas, and even ethane/propane blends—reducing fuel waste and improving overall efficiency.
Why Choose This 3 MW Huachai‑Deutz System?
Large‑Scale Modular Design: Six V12 units in parallel give both high capacity and built‑in redundancy for uninterrupted power.
Fuel Flexibility: Compatible with natural gas, associated gas and mixed gas feeds—ideal for variable gas‑source sites.
Rapid Deployment: Containerised, modular design for quicker transport, installation and commissioning.
High Efficiency Operation: ~90 % continuous running efficiency and ~40 % thermal efficiency help reduce operating costs and environmental impact.
Critical Load Ready: Load‑step response under 3 seconds ensures that sensitive equipment remains protected at all times.
Global Support & Quality: Backed by Huachai‑Deutz’s renowned engine technology and global service network.
Features of Deutz units:
1. The unit is small in size and good at container-type modular use. It can be freely assembled, paralleled, and adjusted according to the actual load.
2.The equipment is easy to install, connect, and relocate to meet the needs of different project types.
3. The engine is relatively stable, with good sudden load performance, and can supply the required power in a short time without long preheating.
4. Good power generation efficiency, 6-cylinder performance reaches 38%, 12-cylinder performance reaches 40% .
5. Strong fuel adaptability: ethane, propane, butane and other multi-component mixed gases can be used, and the explosion-proof performance is enhanced.
6. Stable power supply: In online standby mode, when a single machine fails and protection load reduction/shutdown occurs, the power supply system automatically adjusts the load to ensure normal power consumption.
7. Strong environmental adaptability: It can operate normally in dust, high temperature, low temperature, high humidity and other environments, and the reliability is greatly improved.
8. Cloud platform remote monitoring system can be equipped: We'll check the operation of the equipment online(customer permitted), inform the hidden dangers in advance, and train customers to use the remote cloud inspection service.
9. Low maintenance cost: The equipment adopts an independent cylinder head, and the maintenance cycle of the maintenance parts on the top of the cylinder head is 16,000 hours.
Noted:The product can provide special customization services. If you have any needs, please consult us.
Product Parameters:
AC Alternator data | Gas engine data |
Generator Brand | Mecca | Engine Brand | Huachai-Deutz |
Motor Model | ECO40 1.5L4B | Engine Model | HC12V132 |
Rated Voltage(V) | 415 | Engine type | V-bank-12 cylinders-turbocharged |
Rated Power(H class)kW | 500 | Cylinder Bore x Stroke(mm) | 132mm×145mm |
Rated Capacity(H class)kVA | 625 | Displacement (L) | 23.5 |
Motor efficiency (%)/(400V) | 94.8 | Compression ratio | 11.5 |
Power factor | 0.8 | Rated output power (single) | 530kW-1500rpm/1800rpm |
Connection Methods | D/Y | Maximum lubricant consumption (g/kW.h) | <0.3 |
Rotor insulation class | H class | Minimum air intake (kg/h) | 2200 |
Rated temperature rise | F class | Ignition method | Electronically controlled single-cylinder independent high-energyignition |
Excitation method | Brush-less | Fuel Control Method | Equivalent combustion, closed loop control |
Rotation speed (min- 1) | 1500/1800 | Debugging method | Electronic commissioning |
Shell protection grade | IP23 | Cooling method | Forced water cooling |
Remarks:
1.Engine Control System: ECI (American brand);
2.Throttle: Bosch (German brand);
3.Spark plug: NGK(Japanese brand);
4.Generator master controller: Comap (Czech brand); DEIF(Danish brand); DSE(England brnad);
5.Altermator: Mecca (Italian brand); Stamford (American brand); Leroy Somer (French brand);
6.Starting mode: electric start;
7.Overhaul period: 36000h~60000h;
8.Generator type: pure copper brushless, automatic voltage regulation;
9.Operation mode: grid-connected/parallel/isolated/automatic control, etc;