High-Efficiency VRF Metering and Billing Solution

Driven by the "Dual Carbon" goals, energy-saving renovations in China's building sector are accelerating. Addressing common industry pain points in central air conditioning systems—such as high energy consumption (accounting for over 40% of total building energy use), frequent billing disputes, and extensive management—GRAD Group has innovatively launched a new-generation VRF metering system. This system, powered by the dual drivers of "precise metering + intelligent control + full-chain energy savings," helps commercial buildings achieve energy-saving and cost-reduction targets of 15% to 25%.

Three-Tier Intelligent Architecture, Re-engineering Energy Management

The system adopts a coordinated design of "Device Layer - Data Layer - Application Layer," building a comprehensive energy-saving management system:

Device Layer: Smart gateways (compatible with 8+ brands including Daikin and Gree) + high-precision smart electricity meters + industrial-grade data collectors.

Data Layer: A cloud/local dual-deployment management platform that monitors 10,000+ data points in real-time.

Application Layer: Six major functional modules, including billing management, remote control, and AI energy-saving strategies.

Supply-Demand Linkage & Intelligent Prediction, Optimizing Energy Utilization

Supply-Demand Linkage for Precise Load Matching: The system monitors the usage status of terminal indoor units in real-time, dynamically adjusting the unit's output capacity to ensure efficient balance between supply and demand, enabling zonal and room-specific equipment management to avoid energy waste.

Intelligent Prediction for Optimized Energy Use: The system intelligently predicts startup times and adjusts operation strategies in advance, meeting comfort requirements while reducing energy costs. It provides multi-dimensional statistical analysis of user energy consumption.

Scientific Billing & Intelligent Temperature Control, Delivering a Positive Energy-Saving Experience

Centralized Control and Remote Intelligent Operation: Users can monitor and manage device status remotely in real-time via mobile app or PC, achieving intelligent device interconnection, intercommunication, and intercontrol. 

Scientific Sub-metering and Accurate Billing. The system charges tenants based on the actual proportion of device usage, realizing the principle of "pay more for more use, pay less for less use." Supports hourly statistics of equivalent runtime for each indoor unit. Supports periodic settlement by day, month, cooling season, or heating season. Supports segmented settlement based on rental periods. Supports pre-paid functions with convenient top-up services; use is permitted only after payment. Enables one-click notification for arrears and can be set to shut down upon arrears, preventing malicious non-payment.

 Intelligent Temperature Control with Customizable Energy-Saving Strategies. To prevent energy overuse, the system sets a minimum cooling temperature of 23°C  and a maximum heating temperature of 25°C  (adjustable range). If manual user settings exceed these limits, the platform automatically intervenes to readjust, ensuring temperatures remain within a reasonable range that balances comfort and energy efficiency.

The system supports various automatic control strategy modes, including Energy Saving Mode, Holiday Mode, and Time-Segment Mode, allowing flexible customization to meet diverse control needs.

Three Core Devices Ensuring Stable System Operation

The system relies on three core components. Smart Gateway, breaks down brand barriers, enabling full compatibility control. Smart Electricity Meter, provides precise metering and intelligent pre-paid functionality. Data Collector, ensures stable and reliable, round-the-clock monitoring.

Four Core Advantages, Empowering Building Energy Efficiency Upgrades

High Cost-Effectiveness: Features self-developed terminals and platform; delivers integrated hardware and software solutions; offers more competitive pricing compared to alternatives.

Reasonable Billing: Pay-for-use model; saves up to 30% on manual operation and maintenance costs; low installation costs, saving up to 15% on construction expenses.

Intelligent Operation & Maintenance: A comprehensive management platform (cloud or on-premise deployment) provides diagnostic analysis, intelligent control, and digitalized O&M functions; reduces management costs by 30%.

High Efficiency & Energy Savings: Utilizes AI expert energy-saving algorithms based on big data; implements whole-process energy savings (supply, distribution, terminal); achieves supply-demand linkage, with typical scenario energy savings exceeding 15%.

GRAD Group's VRF Metering System has been successfully applied in numerous commercial complexes and park projects, helping clients achieve energy conservation, consumption reduction, and refined management.