III. How to Evaluate a Green Data Center

1. Green Data Center Evaluation Model

Green data centers are assessed primarily through three models: self-assessment by the data center, external assessment by third-party assessment agencies, and evaluation by the demand side regarding the selection of the data center.

◾Self-evaluation is an internal self-check conducted within the data center to help identify and improve problems;

◾Third-party evaluations are conducted by independent organizations to ensure the results are objective and impartial;

◾Demand-side evaluation refers to the selection of data centers by users or customers based on green standards.

The combination of these three models can comprehensively cover the actual operation of data centers, making the assessment more flexible and practical.

2. Evaluation Indicators

It includes five main types, covering all aspects of data centers.

(1) Efficient utilization of energy resources

Specific indicators include:

a. Annual energy efficiency ratio: This measures energy efficiency, and it is recommended that it not exceed 1.5. The lower the value, the more energy-efficient it is.

b. Information equipment load utilization rate : This refers to the utilization rate of server rack resources, which should not be less than 30% to avoid resource waste;

c. Renewable energy and energy storage utilization level : including the proportion of renewable energy used and energy storage capacity, and encouraging the use of clean energy such as solar and wind power;

d. Water resource utilization efficiency: For water use such as cooling, it is recommended not to exceed 1.6 liters per kilowatt-hour to promote water conservation.

(2) Green design : Environmentally friendly design of HVAC systems, electrical systems, intelligent systems and information systems, such as using high-efficiency air conditioning or intelligent control to reduce energy consumption.

(3) Green procurement : Assess the procurement of environmentally friendly products and control of restricted substances to ensure pollution reduction at the source.

(4) Green Operation and Maintenance : This includes energy and water resource use management, greenhouse gas emission management, operation and maintenance, waste electrical and electronic equipment disposal and waste treatment, as well as environmental impact and occupational health management, emphasizing the implementation of environmental protection measures in daily operations.

(5) Green services : Focus on business continuity, green transformation, construction layout and green public service level to ensure that the service process also meets the requirements of sustainable development.