Recently, through viewing in the site, the PUE value of Dongjiang Lake big data center reached to 1.05, becoming the world's most energy-efficient data center. The PUE value is the ratio of all energy consumed by the data center to the energy consumed by the IT load. The closer the PUE value to 1 means the higher the greenness of a data center. Dongjiang Lake big data center is more energy saving than the most energy-efficient Yahoo "henroost" data center (PUE = 1.08), setting the world record.

At present, the most energy-efficient 5 data centers in the world are: Yahoo "chicken" data center (PUE = 1.08), Facebook data center (PUE = 1.15), Google Belgium data center (PUE = 1.16), HP UK Wynyard data center (PUE = 1.16), and Microsoft Dublin data center (PUE = 1.25).

Dongjiang Lake big data center is located near the beautiful Dongjiang Lake, using the natural cold water of Dongjiang Lake (water temperature maintains at 8 ℃ -13 ℃) as a cooling cold source. Most of the time without the use of air conditioning machine greatly reduces the energy consumption and operation cost, more than 30% energy saving than common data center. It has become the most energy-efficient, energy saving and environmental protection IDC (Internet data center) in China, even in the world. Dongjiang Lake big data center with 500G of broadband realizes the two-way routing protection, has standardized telecommunications professional big data operating environment and reaches the "diamond five-star" data room standards, which is the largest data center in Hunan Province.