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美姑河是金沙江左岸的一级支流,位于凉山州美姑、昭觉、雷波三县境内。美姑河流域梯级水电站开发自上而下包括牛牛坝、瓦洛、瓦吉吉、柳洪、坪头五个水电站。其中柳洪水电站是美姑河规划“一库五级”开发方案的第四级水电站。利用落差392m(1305m～913m),设计发电引用流量57m3/s,总装机容量180MW(3×60MW),保证出力34.5MW,年发电量8.45/9.11亿kW·h(单独运行/联合运行)。2006年10月26日,柳洪水电站顺利通过了大坝蓄水安全鉴定。2007年初,柳洪水电站全面进入机电安装高峰期,分别于1月和3月顺利完成了2#和3#水轮发电机组转子吊装。目前柳洪水电站主体工程已基本完工,首台(1#)机组预计将于2007年6月投产发电。第五级坪头水电站位于四川省凉山彝族自治州美姑、昭觉、雷波三县交界处,该水电站利用落差328m(913m～585m),设计发电引用流量72m3/s,总装机容量180MW(3×60Mw),保证出力28.96MW,年发电量7.788/8.61亿kW·h(单独运行/联合运行)。目前处于主体工程施工高峰期。四川美姑河梯级水电站送出工程则为美姑河梯级水电站的配套工程,是五个梯级水电站发电送入四川主网的220kV输变电工程。分为一期工程和二期工程两部分建设。一期工程包括220kV美姑河开关站、柳洪～美姑河开关站220kV送出线路(220kV柳美线)、美姑河开关站～普提变电站(220kV美普一线)送电线路及相应的OPGW通信、二次继电保护、系统自动化控制等工程。四川省电力建设工程质量监督中心站于2006年9月,对该工程进行了竣工质量检查,工程合格率为100%,工程质量等级评定为优良。二期工程包括坪头～柳洪送电线路、牛牛坝～瓦洛～美姑河开关站送电线路、瓦吉吉～美姑河开关站送电线路、美姑河开关站～普提变电站(220kV美普二线)送电线路及相应的OPGw通信、二次继电保护、系统自动化控制等工程。
Migu River is a tributary of the left bank of the Jinsha River, located in Liangshan Prefecture Migu, Zhaojue, Leibo three counties. Meige River Basin cascade hydropower development from top to bottom, including Niu Niuba, Varuro, Waji Kyrgyzstan, Liu Hong, Pingtung five hydropower stations. Among them, Liuhong Hydropower Station is the fourth-level hydropower station that plans to develop “one reservoir and five levels” in Mayanghe. Utilizing a drop of 392m (1305m ~ 913m), the power generation reference flow rate of 57m3 / s is designed with a total installed capacity of 180MW (3 × 60MW) to ensure a power output of 34.5MW and an annual generating capacity of 8.45 / 911GWh (separate operation and combined operation). On October 26, 2006, Liuhong Hydropower Station successfully passed the dam water safety appraisal. In early 2007, Liuhong Hydropower Station entered the peak of electromechanical installation in full swing, successfully completed the rotor hoisting of 2 # and 3 # hydrogenerator sets in January and March respectively. At present, the main project of Liuhong Hydropower Station has been basically completed. The first unit (# 1) is expected to be put into operation in June 2007. The fifth level of Pingtou Hydropower Station is located at the junction of the three counties of Meiyu, Zhaojue and Leibo in Liangshan Yi Autonomous Prefecture, Sichuan Province. The hydropower station uses a drop of 328m (913m ~ 585m) and a design reference generation flow of 72m3 / s with a total installed capacity of 180MW × 60Mw), guaranteed output of 28.96MW, annual power generation of 7.788 / 861 million kW · h (separate operation / joint operation). Currently in the main peak of construction. The project of Sichuan Meigu River Cascade Hydropower Station is the supporting project of Meigu River cascade hydropower station, which is the 220kV power transmission project that the five cascade hydropower stations generate electricity into Sichuan main network. Divided into a project and the second phase of the construction of two parts. The first phase of the project includes 220kV Meigu River Switch Station, Liuhong ~ Meigu River Switchyard 220kV Transmission Line (220kV Liu Mei Line), Meigu River Switch Station ~ Puti Substation (220kV Meipu Line) and the corresponding transmission lines OPGW communications, secondary relay protection, system automation and control engineering. Sichuan Electric Power Construction Quality Supervision Center Station in September 2006, the completion of the project quality inspection, project qualification rate of 100%, the quality of the project rated as excellent. The second phase of the project includes the Pingtou ~ Liuhong transmission line, Niu Niuba ~ Valu ~ Meigu River switchyard transmission line, the Wajiji ~ Meigu River switchyard transmission line, Meigu River Switch Station ~ Puti Substation (220kV Meipu second-tier) transmission lines and the corresponding OPGw communications, secondary relay protection, system automation and control projects.