ptimizing Power for Dalian Jinzhou Bay International Airport with Foxtheon P200
Project: Dalian Jinzhou Bay International Airport (World’s largest offshore artificial island airport)
Client: China Construction Eighth Engineering Division Corp., Ltd.
Solution: Foxtheon EnergyPack P200 + 300 kW Diesel Generator
Application: Battery Storage for Construction (Heavy Machinery Support)
Executive Summary
Construction sites often struggle with oversizing generators to handle momentary power spikes, leading to wasted fuel and high operational costs. In the Dalian Jinzhou Bay offshore airport project, Foxtheon implemented a Hybrid Generator System pairing the P200 EnergyPack with a standard 300 kW diesel generator.
“The Result? This configuration successfully replaced a massive 500 kW traditional generator setup, handling extreme surge loads while delivering a 54.2% reduction in fuel consumption.”
The Challenge: Managing High Inrush Currents
The construction of the artificial island required the continuous operation of Vibro-Stone Column machines. Due to the complex “hard upper, soft lower” geological structure, the equipment faced severe load fluctuations.
The Technical Problem: While the continuous load was only ~395.5 kW, the machinery created massive instantaneous surge loads (spikes) when transitioning between rock layers.
The Traditional Failure: A standard 300 kW generator would trip immediately. Using a 500 kW generator solved the spike issue but created new problems:
Inefficiency: The generator ran at low loads (<30%) most of the time, leading to “wet stacking” and engine damage.
High Costs: Fuel consumption soared to 40–50 L/h.
Oversizing: paying for capacity that was only used for seconds at a time.
The contractor needed a solution specifically designed as a BESS for high inrush current, capable of reusing their existing 300 kW inventory while cutting costs.
The Solution: Foxtheon P200 HybridPack
Foxtheon deployed a Hybrid Power Solution that integrates intelligent energy storage with traditional generation.
Setup: 1x Foxtheon EnergyPack P200 (Battery Storage) + 1x Existing 300 kW Diesel Generator.
Peak Power Capability: The system can deliver 800 kVA / 640 kW for up to 10 seconds.
How It Works
Powered by the FoxMind™ EMS (Energy Management System), the P200 acts as a shock absorber for the power grid:
Peak Shaving: When the Vibro-Stone machine hits a hard rock layer, the P200 instantly discharges to handle the surge, preventing the generator from overloading.
Optimal Loading: The diesel generator is kept running in its “sweet spot” (50–80% load), where it burns fuel most efficiently.
Automatic Stop/Start: During breaks or low-load periods, the generator shuts down completely, and the site runs silently on battery power.
Results: Validated Performance & ROI
By switching to a Foxtheon hybrid system, the client was able to significantly reduce diesel generator fuel consumptionand lower their carbon footprint.
“Key Takeaway: The hybrid system allowed a smaller generator to perform like a much larger one, saving $17,568 per month in fuel alone per unit.”
Why Choose Foxtheon for Construction Power?
This case study demonstrates that battery storage for construction is no longer just about being “green”—it’s about financial survival and operational efficiency.
Handle Surge Loads: Specifically engineered as a BESS for high inrush current applications like cranes, crushers, and piling rigs.
Maximize Fleet ROI: Rental companies can pair a P200 with smaller, older generators to rent them out as premium “Hybrid Power Units.”
Plug & Play: Rapid deployment with CSC-certified containerized designs suitable for harsh offshore environments.
Stop oversizing your generators. Upgrade to a Foxtheon Hybrid Generator System today.