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沃卡一级水电站位于西藏自治区桑日县境内的雅鲁藏布江左岩一级支流沃卡河上,河口距桑日县25km,距山南行署所在地泽当65km。沃卡一级水电站是一座由许莫、白堆两个首部枢纽、引水渠道、一个发电厂房等建筑物组成的,以发电为主的引水式电站,装机容量4×5000kW=2万 kW,年发电量7704万 kW·h。两渠首最大坝高17.5m,坝顶长度140m。许莫干渠长2645m,白堆支渠长3120m,总渠长828m,合计引水渠总长6593m。引水渠系建筑物除渠道外,还包括5座输水渡槽、1个倒虹吸、6座排山洪渡槽、2条排山洪涵洞及4道排砂涡管、压力前池及2条压力钢管等组成。发电厂房包括主副厂房、尾水建筑物、开关站、主变场及进场交通桥等。
The Woca Hydropower Station is located on the Woca River, a tributary of the left-hand side of the Yarlung Zangbo River in Sangri County, Tibet Autonomous Region. Its estuary is 25km away from Sangri County and 65km from Zendang, where the Shannan Administrative Office is located. Woka Hydropower Station is a water diversion power station consisting of two major hubs of Xumo and Baijiu, diversion channels, a power plant and other buildings, with a generating capacity of 4 × 5000kW = 20,000 kW, Power generation 77.40 million kW · h. The two largest dam height of 17.5m, the crest length of 140m. Xu Mogan channel length 2645m, white pile branch length 3120m, the total canal 828m, a total length of 6593m diversion canal. Besides the channels, the aqueduct system also includes 5 aqueducts, one inverted siphon, six Paiyan flood aqueducts, two volcanic drained culverts and four sand-draining vortex tubes, a pressure front pool and two pressure pipes, etc. composition. Power plant includes the main and auxiliary plant, tail water buildings, switch stations, the main transformer market and access to traffic bridges.