Tianhuaban Dam

The Tianhuaban Dam is an arch dam on the Niulan River, a tributary of the Jinsha River. It straddles the border of Ludian and Qiaojia Counties in Yunnan Province, China. The primary purpose of the dam is hydroelectric power generation and it supports a 180 MW power station. In September 2006, construction on the dam's river diversion tunnels commenced. The first two of 90 MW Francis turbine-generator sets was commissioned in February 2011, the second in March of the same year. Water from the reservoir is diverted to a power station about 2.5 km (1.6 mi) downstream on the right bank of the river.[1][2][3]

Tianhuaban Dam
Location of Tianhuaban Dam in China
Country	China
Location	Ludian/Qiaojia Counties, Zhaotong, Yunnan Province
Coordinates	27°1′41.12″N 103°17′26.67″E
Purpose	Power
Status	Operational
Construction began	2006
Opening date	2011 (2011)
Dam and spillways
Type of dam	Arch, roller-compacted concrete
Impounds	Niulan River
Height	113 m (371 ft)
Length	160 m (520 ft)
Reservoir
Total capacity	65,700,000 m3 (53,300 acre⋅ft)
Surface area	2.2 km2 (0.85 sq mi)
Normal elevation	1,071 m (3,514 ft)
Tianhuaban Hydropower Station
Coordinates	27°2′52.91″N 103°16′28.82″E
Operator(s)	Yunnan Dianneng Niulan Jiang Hydropower Development Limited
Commission date	2011
Type	Conventional, diversion
Turbines	2 x 90 MW Francis-type
Installed capacity	180 MW