Economic Benefits of Diesel-Storage Smart Power Station for Project Camp Power Supply

Economic Benefits of Diesel-Storage Smart Power Station for Project Camp Power Supply

1. Project Background

The case is a highway project in Xizang without grid power access. The original power supply relied on two diesel generators (200kW and 100kW) for living quarters and test areas. The load was unbalanced: the peak load was 80kW, while the average load was only 20~30kW. Even under light load far below the rated power, the generators had to run continuously.

To cut fuel cost and reduce noise pollution, the project adopted a diesel-storage smart power station. The existing 200kW diesel generator was retrofitted for parallel operation with the smart power station. The diesel engine charges the energy storage system and shuts down once fully charged, and the energy storage system independently supplies power to the camp. The original 100kW diesel generator was decommissioned.

Daily operation hours of the 200kW diesel generator: reduced from 16h to 4h

Power supply: upgraded from 16-hour power supply to 24-hour uninterrupted power supply

Daily fuel consumption reduction: approx. 200L

2. Fuel Cost Comparison: Conventional Diesel Generator vs. Diesel-Storage Smart Power Station

3. Core Economic Benefits

Direct fuel saving: 18.78 - 12.52 = 6.26 million CNY

After deducting the rental difference between the smart power station and conventional diesel generators, the total cost saving reaches 563,200 CNY over the whole project period.

Additional implicit benefits:

Less operation time reduces engine wear and maintenance cost, extending generator service life.

24-hour uninterrupted power supply ensures stable power for living and test areas, avoiding losses caused by power outages.

Lower fuel consumption reduces auxiliary costs for fuel transportation and storage.

Shorter running hours of diesel generators cut noise and exhaust emissions, meeting environmental requirements on plateau.

4. Summary

Conventional diesel generators operate with poor efficiency under low-load camp conditions, suffering from the "large engine for small load" problem and low fuel utilization.The diesel-storage smart power station works in this way: diesel generators run for a short period to charge energy storage, and energy storage continuously delivers power. The diesel engine only works during charging, greatly cutting its running hours and improving fuel efficiency. With the same total power demand, it drastically reduces diesel consumption and power cost, while improving power supply continuity.