Advantages of Gas Internal Combustion Engine Power Generation and Comparisons
Amid the wave of dual-carbon goals and the development of distributed energy, gas internal combustion engine power generation is becoming a mainstream choice for scenarios such as industrial parks, data centers, and hospitals. It is not the only power generation solution, but it stands out as the most balanced option in terms of overall cost-effectiveness, flexibility, and environmental friendliness.
I. Gas Internal Combustion Engine Power Generation: Core Advantages at a Glance
Fueled by natural gas, biogas, industrial tail gas, and various other combustible gases, it drives a generator through a reciprocating internal combustion engine to produce electricity. Highly efficient, clean, and flexibly deployable, it also supports combined heat and power (CHP), making it a "versatile choice" for distributed energy.
Five Irreplaceable Advantages
1. Top-tier Power Generation Efficiency
Single-unit power generation efficiency reaches 40%–42%, with mid-to-high-end models consistently exceeding 40%. In CHP mode, the comprehensive energy utilization rate exceeds 85%, far surpassing gas turbines and diesel generator sets.
2. Fast Start-Stop and Strong Peak Regulation
Capable of reaching full load within minutes from a cold start, it can be frequently started and stopped and precisely follow load changes, serving as a "rapid-response unit" for grid peak regulation and emergency power supply.
3. Exceptional Fuel Versatility
In addition to natural gas, fuels such as biogas, landfill gas, methane, and industrial tail gas can all be utilized, turning waste into energy while reducing costs and carbon emissions.
4. Flexible Deployment and Investment-Friendly
With a single-unit power range of 300 kW–4000 kW, modular assembly, small footprint, low site requirements, and fast delivery and commissioning.
5. Low Carbon, Eco-Friendly, and Easy Maintenance
Compared to diesel or coal-fired units, CO₂ emissions are reduced by approximately 30%, NOx emissions by over 50%, with virtually no sulfur or dust emissions. Minimal carbon buildup and low wear make maintenance as straightforward as "car servicing."
Gas Internal Combustion Engine vs. Diesel Generator
Efficiency: Gas internal combustion engine (40%–42%) > Diesel (30%–40%)
Cost: Gas cost: 0.12–0.2 USD/kWh, Diesel: 0.3–0.45 USD/kWh
Environmental Impact: Gas is cleaner, with no black smoke and lower noise
Lifespan: Gas units have a longer lifespan and more stable long-term operation
Conclusion: For long-term use, environmental benefits, and overall cost-effectiveness, gas internal combustion engines are the clear winner.
Gas Internal Combustion Engine vs. Gas Turbine
Efficiency: Gas turbine (25%–35%) < Internal combustion engine (40%–42%); combined-cycle gas turbines offer higher efficiency but come with higher investment, larger footprint, and greater complexity.
Flexibility: Internal combustion engines start and stop faster and maintain efficiency at low loads.
Cost: Internal combustion engines have lower upfront costs and shorter deployment cycles, whereas gas turbine projects typically require 2–4 years for delivery.
Application Scenarios: Gas turbines suit large-scale bases; internal combustion engines are preferred for distributed, medium-to-small power, and fast-deployment projects.
Gas Internal Combustion Engine vs. Photovoltaic/Wind Power
Stability: Wind and solar power depend on weather conditions; internal combustion engines provide 24/7 stable power supply.
Reliability: Can serve as backup power sources and operate in isolated grids, which wind and solar power cannot achieve independently.
Complementarity: Wind/solar + gas internal combustion engine = the perfect partnership, with internal combustion engines providing backup for intermittent renewable energy.
II. Why Gas Internal Combustion Engines Are the Current "Optimal Solution"
Gas internal combustion engines are neither the "cheapest" nor the "most cutting-edge," but they are the most robust choice:
High enough efficiency with controllable costs
Fast start-stop and flexible dispatch
Broad fuel adaptability and compliance with environmental standards
Rapid deployment and simple maintenance
Capable of independent operation, complementarity with renewables, and CHP
III. Which Scenarios Should Definitely Choose Gas Internal Combustion Engines?
Industrial Parks and Factories: CHP provides electricity + steam/hot water in one step, delivering significant cost savings.
Data Centers, Hospitals, and Shopping Malls: Reliable backup power + peak shaving, ensuring zero risk of power outages.
Landfills, Livestock Farms, and Wastewater Treatment Plants: Direct utilization of biogas/landfill gas for power generation, with potential subsidies.
Remote Areas and Islands: Isolated grid operation, independent of external power grids.
Renewable Energy Integration: Acts as a "stabilizer" for photovoltaic/wind power, reducing curtailment of wind and solar energy.
Under the broader trends of distributed energy and dual-carbon strategies, gas internal combustion engines represent a shared choice for enterprises seeking cost reduction, governments pursuing emission cuts, and grids ensuring stable power supply.
If you have power generation needs, please contact us. Based on your power requirements, fuel type, site conditions, and budget, we will develop a customized selection plan for you.
