ROI Analysis for 2MW Natural Gas Power: Comparing 3 Global Scenarios

Baseline Technical Parameters (2MW Unit):

• Power Output: 2 MW

• Operational Time: 24 h/day (330 days/year)

• Daily Output: 48,000 kWh

• Daily Gas Consumption: 12,000 Nm³

Scenario 1: Standard Manufacturing (China or SE Asia)

Optimized for regions with developed gas infrastructure and moderate industrial electricity rates.

1. Financial Assumptions:

• Grid Electricity Price: ≈ 0.13 USD/kWh$ (0.90 RMB)

• Natural Gas Price: ≈ 0.35 USD/Nm³ (2.5 RMB)

• Total Investment (CAPEX): ≈ $700,000 USD (5 Million RMB)

  (Including Gen-set, gas station, grid-connection, and installation).

2. Annual Performance:

• Annual Grid Expenditure: ≈ $2,000,000 USD$

• Annual Self-Generation Fuel Cost: ≈ $1,390,000 USD

• Annual Net Savings: $610,000 USD (4.36 Million RMB)

3. Payback Period:

• 700,000  ÷ 610,000 ≈ 1.15 Years (approx. 14 Months)

Scenario 2: Data Centers or Mining (High-Tariff Regions)

Optimized for overseas markets (e.g., parts of Europe or the Americas) with expensive commercial rates.

1. Financial Assumptions:

• Grid Electricity Price: ≈ $0.18 USD/kWh$

• Natural Gas Price: ≈ $0.35 USD/Nm^3$

• Total Investment (CAPEX): ≈ $750,000 USD (Base system)

2. Annual Performance:

• Annual Grid Expenditure: ≈ $2,850,000 USD$

• Annual Self-Generation Fuel Cost: ≈ $1,390,000 USD$

• Annual Net Savings: $1,460,000 USD

3. Payback Period:

• 750,000  ÷ 1,460,000 ≈ 0.51 Years (approx. 6 Months)

Scenario 3: Integrated Energy (CHP - Combined Heat & Power)

Optimized for factories requiring both electricity and thermal energy for production or HVAC.

1. Heat Recovery Value:

• Efficiency Boost: Recovers engine waste heat (exhaust & cooling water), equivalent to saving 8,000 kWh/day in thermal energy.

• Annual Thermal Savings Value: ≈ $335,000 USD (2.38 Million RMB)

2. Total Annual Benefits:

• Power Savings ($610k) + Thermal Savings ($335k) = $945,000 USD/year

3. Payback Period:

• 700,000 ÷ 945,000 ≈0.74 Years (approx. 9 Months)

Executive Summary Table

Conclusion

Compared to traditional grid reliance, a 2MW natural gas power solution offers industrial users a path to full cost recovery within 6 to 15 months. Beyond the rapid ROI, it secures a stable, independent energy supply while significantly lowering the carbon footprint through cleaner-burning fuel and high-efficiency heat recovery.