1. Project Basic Information
- Project Name
- Suzhou Sports & Cultural Center
- Project Location
- Suzhou High-tech District
- Project Scale
- A total construction area of 170,000 m².
- The Sports & Cultural Center consists of the “Three Centers”:
- Cultural Center, Library, Gymnasium, Public Fitness Center, Film & Television Center, and Commercial Center.
- Project Format / Type
- Large Urban Complex
- Core Energy Requirements
- Main energy types: Electricity / Water / Gas / Heat
- Energy-use characteristics:
- Venue energy consumption fluctuates significantly depending on competitions or event schedules.
- Each venue requires independent energy accounting; shared/public energy consumption must be allocated.
2. Core Project Pain Points (Direct Needs Highlighting the Necessity of the System)
- Energy data collection is difficult.
- The Sports & Cultural Center consists of three venues and three functional centers, each operating independently, yet energy consumption in shared areas—such as lighting, hot water, and HVAC—cannot be evenly allocated. Energy metering relies mainly on manual readings and analysis, resulting in low efficiency.
- Energy costs remain high.
- Annual electricity consumption reaches approximately 12 million kWh, and natural gas consumption about 700,000 m³. HVAC systems, swimming pool hot-water systems, and lighting systems contribute most significantly to energy usage.
- Uneven heating and cooling in HVAC systems, with comfort levels needing improvement.
- The HVAC control system cannot accurately regulate thermal output: some areas (e.g., the library) are oversupplied, while others (e.g., certain office areas) are undersupplied, resulting in suboptimal thermal comfort.
3. Energy Optimization Solution
Based on the energy management needs and current equipment conditions of the Sports & Cultural Center, we propose an integrated energy optimization solution consisting of the ECO EMS Energy Management System, Intelligent Central Air Conditioning Control System, and High-Efficiency Equipment Upgrades.
3.1 ECO EMS Energy Management System
Centered on the ECO EMS energy management software and equipped with smart water meters, three-phase electricity meters, electromagnetic energy meters, industrial-grade data collectors, and power monitoring control cabinets, it builds an integrated intelligent management and metering system for multiple energy types—electricity, water, cooling, and heat.
- Hardware Investment:
- Central Control Hardware: Monitoring workstation, server, UPS
- Data Transmission Hardware: Switches, energy data acquisition boxes (20 sets)
- Data Acquisition Hardware: Three-phase smart meters (355 units), smart water meters (2 units), electromagnetic energy meters (2 units), intelligent HVAC thermostats (168 units)
- Software Function Design:
- Energy Consumption Analysis
- Supports energy consumption comparison, ranking, year-on-year analysis, and month-on-month analysis. Enables queries by date and energy type.
- Energy Consumption Analysis
- Energy Flow
- Allows querying energy flow under different combinations of conditions across multiple dimensions.
- Query dimensions: Date, Energy Type, Energy Category.
- Energy Consumption Reports
- Supports consumption reports, cost reports, and peak-value reports. Provides daily, monthly, and annual reports by time dimension, and supports export to Excel.
- Energy-Saving Diagnostics
- Customized diagnostic module for identifying abnormal operation of power equipment.
Through sub-metering with 350 multifunction meters, combined with platform data visualization and automated report generation, the system not only enables refined energy supervision but also feeds data back into system control strategies. This reduces labor for manual meter reading and operations while providing quantifiable optimization insights to support continuous energy savings.
3.2 ECO Intelligent Central Air Conditioning Control System
The original central air-conditioning control system is replaced with the ECO Intelligent Central Air Conditioning Control System, which performs coordinated air–water regulation based on load characteristics or comfort requirements. It supports constant temperature and humidity control, standard comfort control, and other modes. By integrating process-specific needs with optimal heat-exchange efficiency of the HVAC system, it achieves precise terminal load control and comfort control while ensuring the highest operational efficiency.
- Hardware Investment:
- Central Control Hardware: Central air-conditioning control server
- Intelligent Control Cabinets: Chiller plant control cabinet, cooling tower energy-saving control cabinet, chilled-water energy-saving control cabinet, cooling-water energy-saving control cabinet, hot-water system energy-saving control cabinet
- Sensors: Temperature sensors (18), pressure sensors (13), outdoor temperature & humidity sensor (1)
- Air-Conditioning Terminal Upgrades:
- Air-Handling Unit Control Upgrade: Integrate 88 terminal AHUs and fresh-air units into the control system for remote intelligent regulation.
- Valve Control Upgrade: Retrofit and repair water valves and air valves to optimize energy-saving control.
- Fan-Coil Unit Intelligent Upgrade: Replace 168 FCU panels in public corridors and restrooms with remote intelligent control terminals.
By implementing coordinated control of the chiller plant and the terminal BA system, variable-frequency regulation is used to match cooling-load demand, directly improving HVAC energy-station efficiency by 16%. Meanwhile, remote intelligent terminal control enables precise regulation of end-use energy, reducing terminal management complexity and achieving efficient cooling distribution across the entire chain—from “chiller → piping → terminal.”
3.3 High-Efficiency Equipment Upgrades
- Targeting the energy-efficiency shortcomings of the existing facilities at the Suzhou Sports & Cultural Center, high-efficiency equipment retrofits were implemented:
- Lighting System Efficiency Improvement:
- Metal-halide lamps in the gymnasium and tennis hall were replaced with high-efficiency, anti-glare LED lighting; 18W tubes in the underground parking area were replaced with 8W high-efficiency tubes while maintaining the same illuminance.
- Hot-Water System Upgrade:
- An 800 kW swimming-pool heat pump and a 345 kW shower heat pump were added to replace the original gas-boiler heating system, significantly reducing heating energy consumption.
4. EMS System Value & Project Outcomes
This energy-efficiency upgrade reduces annual energy expenses for the Sports & Cultural Center by RMB 900,000 per year. Among the improvements, the central air-conditioning system achieved a 16% energy-saving rate, the hot-water system 40%, the lighting system 50%, resulting in an overall comprehensive energy-saving rate of 25%.
| Renovation Item | Energy-Saving Effect |
| ECO EMS Energy Management Platform | Enables refined energy management and reduces labor input |
| Enables refined energy management and reduces labor input | Improves HVAC energy-station efficiency by ~16% |
| Hot-Water System Upgrade | Reduces heating energy costs by ~40% |
| Terminal BA System Upgrade | Saves approximately 15% of total energy consumption |
| Lighting System Upgrade | Saves approximately 50% of lighting energy consumption |
5. Conclusion
The ECO EMS Energy Management System and the ECO Intelligent Central Air Conditioning Control System work together to deliver dual energy-saving value through “intelligent control + data-driven optimization.” This transforms the Sports & Cultural Center’s energy management from experience-based to intelligent and precise, ensuring both comfort for venue users and elevating energy savings from single-point reduction to system-wide efficiency improvement.
6. RFQ
Q1: Can you provide a similar energy optimization solution tailored to our facility’s size and energy types?
Yes. We design project-specific solutions based on your building size, energy types (electricity, water, gas, heat), and existing equipment. Using the same methodology applied in the Suzhou project—sub-metering + data analytics + intelligent control—we create optimized solutions that fit your operational needs and deliver measurable savings.
Q2: What energy-saving results and ROI can we expect with an EMS + intelligent HVAC control system?
Typical energy savings range from 15%–30%, depending on equipment conditions and usage patterns.
In the Suzhou case:
Overall: 25% savings Most clients achieve ROI within 1–3 years.
HVAC: 16% savings
Hot-water system: 40% savings
Lighting: 50% savings
Q3: What hardware will be required for our project (meters, gateways, sensors, control units, etc.)?
A (EN): We provide a complete bill of materials (BOM) tailored to your site.
Typical components include:
Terminal controllers (AHU/FCU, etc.)
Smart electric/water/heat meters
Industrial IoT gateways
Data acquisition boxes
HVAC control cabinets
Temperature, pressure, and flow sensors
Q4: Can your EMS integrate with our existing HVAC, BMS/BA, or legacy metering systems?
Yes. Our EMS supports Modbus, BACnet, MQTT, and other industrial protocols.
We can integrate with:
- Existing HVAC systems
- BMS/BA systems
- Legacy meters
- Chiller plant PLCs For incompatible systems, we provide retrofit or protocol conversion solutions.
Q5: What level of installation, commissioning, and after-sales support do you offer?
We offer full lifecycle support, including:
Remote diagnostics and long-term maintenance Depending on your region, you may choose on-site support, remote support, or local partner services.
Technical proposals and system design
Hardware supply and on-site installation guidance
System commissioning and data validation
Platform setup and reporting configuration
