1 Project Challenges and Requirements

As a leading 5-star hotel in Vung Tau, IMPERIAL sets strict requirements for service quality, including maintaining a stable and comfortable temperature 24/7 for customers. This means that the air conditioning system must operate continuously, leading to very high electricity costs during peak hours, directly affecting profits.

Key challenges:

1. Ensures absolute stability of cold supply for a high-end service environment.

2. Cut peak-hour electricity costs without compromising cooling performance.

3. Deploying the solution in a specific location (on the roof) requires a compact, safe and easy-to-integrate design.

2 Breakthrough Solution from ESS Vietnam: Rooftop Cold Storage Tank

ESS Vietnam has supplied and installed a specially designed Cold Storage Tank (TES) solution located on the roof of the IMPERIAL hotel, effectively solving space and cost problems.

• Take Advantage of Low Electricity Prices: The main air conditioning system (Chiller) operates at night to store 4,300 kWh of cooling capacity in the tank.

• Stable Supply: The stored cold is used to support or completely replace the Chiller system operating during the day (peak hours), ensuring a stable cold source without having to bear the burden of high electricity costs.

• Rooftop Design: The solution of placing the TES tank on the roof is an optimal choice, taking advantage of unused space and minimizing technical barriers for the area inside the hotel. ESS Vietnam has ensured the structure and material calculations to meet the load and construction safety standards.

3 Investment Efficiency and Implementation Process

The IMPERIAL VUNG TAU project is a testament to the outstanding economic efficiency of the TES solution, even for projects with medium capacity and strict technical requirements.

• Record Return on Investment: By optimizing electricity costs by time frame, the project brings great financial benefits, demonstrated by an impressive payback period (ROI) of only 3 years .

• 5 Star Quality: TES solution helps hotels maintain the highest level of comfort and convenience, while contributing to the sustainable operation criteria of 5-star hotels.

• Completion Time: The project was handed over and installed by ESS Vietnam in February 2015 , ensuring progress and quality.

3.1 Actual Implementation Process

The construction process of the rooftop Cold Storage Tank has been carried out according to strict procedures, ensuring safety and quality:

1. Tank construction: Build and shape the structure of the cold storage tank on the roof according to detailed technical drawings, ensuring compliance with standards on load and waterproofing.

2. Complete installation of equipment in the tank: Install heat exchangers, piping systems and specialized sensors inside the tank, connecting to the hotel's central cooling system.

3. Completed tank: Hand over the completed TES tank, integrate and test the system, ready for commercial operation to start the energy saving cycle.

ESS Vietnam is proud to be a partner providing energy storage solutions for high-end projects, requiring the most stringent technical standards and services. Contact us to receive in-depth advice on rooftop TES solutions for your project.