Background
BackgroundA hospital project in Brisbane required a reliable and cost-effective power solution to support essential site facilities, including lunchrooms, meeting spaces, offices, first aid stations, eye wash stations, toilets, and water stations. Initially, the project relied solely on a diesel generator, running 24/7, leading to high fuel costs, excessive noise pollution, and significant carbon emissions.
To optimize efficiency and sustainability, the project team sought an advanced hybrid power solution that could reduce reliance on diesel, cut operational costs, and minimize environmental impact.
Objective
ObjectiveThe key goals of the project were:
✅ Reduce fuel consumption and operational costs
✅ Minimize generator runtime and noise pollution
✅ Lower carbon emissions for a more sustainable worksite
✅ Ensure stable and reliable power for essential site operations
Hybrid System Setup
To achieve these objectives, the project deployed a Hybrid Generator System, integrating a 188kWh Battery Energy Storage System (BESS) – EnergyPack M100 with a 100kVA diesel generator. The hybrid system allowed the generator to run only when necessary, charging the BESS, which then supplied power to the site facilities. This intelligent energy management significantly reduced generator runtime, fuel consumption, and emissions.
（Image courtesy of our client. This hybrid power solution was implemented by Generent Pty Ltd.）
Results: Hybrid Power vs. Diesel Generator
The comparison between the standalone diesel generator and the hybrid system with a BESS reveals the following benefits:
| Metrics | Diesel Generator Only | Hybrid System (Diesel + BESS) | Improvement |
|---|---|---|---|
| Generator Runtime | 24 hours/day | 3 hours/day | -87.5% |
| Noise Pollution | Continuous 24h | Reduced by 21h/day | -87.5% |
| Diesel Consumption | ~5,160L/month | 1,273L/month | -75.3% |
| Carbon Emissions | ~13,452kg CO₂/month | 3,346kg CO₂/month | -75.1% |
| Fuel Cost Savings | $10,608.80/month | $2,640.45/month | $7,968.35 saved |
Conclusion
By adopting a hybrid power system, this Brisbane hospital project achieved remarkable cost savings, substantial carbon footprint reduction, and enhanced site efficiency. The integration of a Battery Energy Storage System (BESS) with a diesel generator provided an optimal hybrid power solution, ensuring reliability while cutting down operational expenses.
Switching from a traditional diesel generator to a hybrid generator system has proven to be a game-changer for construction projects seeking to balance efficiency, cost-effectiveness, and sustainability.
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