Central Air Conditioning (VAV) Billing System Solution

Energy + Air Volume Cumulative Billing Method

Variable Air Volume (VAV) air conditioning systems regulate indoor temperature by adjusting the supply air volume. The Energy + Air Volume Cumulative Billing Method involves using heat meters to measure the cooling (or heating) consumption of each AHU air handling unit. Simultaneously, the VAV manager directly queries the VAV network controller via Ethernet to obtain real-time air volume and temperature data from each terminal VAV box. The VAV manager then performs real-time cumulative air volume calculations, enabling uninterrupted long-term VAV air volume accumulation. On the billing settlement date, the system automatically allocates the cooling (or heating) energy generated by the AHU air handling unit on each floor based on the proportion of cumulative air volume consumed by each VAV box during the specified settlement period relative to the total air volume of the entire floor, thereby achieving VAV air conditioning billing.

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Energy Measurement Management System

The Energy Measurement Management Information System utilizes modern communication technology, embedded systems, and large-scale database technology to achieve energy consumption data collection, analysis, and processing for buildings. It enables online monitoring and dynamic analysis of energy consumption, strengthens energy-saving operational management, and implements critical tasks such as energy consumption collection, energy efficiency evaluation, energy consumption statistics, energy audits, energy efficiency disclosure, energy usage quotas, and energy-saving services.

The Energy Measurement Management Information System will achieve comprehensive breakthroughs in capacity building and institutional development for building energy conservation management. It establishes a digital platform for energy efficiency management to support building energy measurement, statistical analysis, and management system construction. This system promotes the openness and transparency of energy usage data, enables quota-based energy management and low-cost or no-cost energy-saving management, and establishes a scientific energy-saving management system.

It enables sub-metering for different sectors within the same building or industry, assesses energy consumption across departments, and enhances energy conservation efforts in various sectors. From a practical perspective, it analyzes and monitors process parameters to obtain equipment operational efficiency, identify abnormal data, and facilitate immediate corrective actions, thereby improving work efficiency and reducing energy consumption. Through data mining and analysis, it reduces standby energy consumption, achieving energy savings through management.