The business of installing and commissioning mechanical and electrical equipment is currently the company's second largest business. A total of 13 hydropower stations have been installed and 7 hydropower stations have undergone automation transformation, efficiency enhancement, capacity expansion and multiple technical renovation, maintenance and testing projects.

Mechanical and electrical installation of hydropower stations: The installation and construction tasks of mechanical and electrical equipment for projects such as Wengxi Power Station in Taishun County, Zhejiang Province (1*1.6MW), Unit #3 of Dazhaihe Third-level Power Station in Jinping County, Yunnan Province (3*5MW), Fengchunling Third-level Power Station in Yuanyang County, Yunnan Province (2*6.3MW), Fengchunling First-level Power Station (2*6.6MW), Fengchunling Second-level Power Station (2*5MW), Yangxihe Second-level Power Station (2*6.5MW), Halonghe First-level Power Station (2*5MW), Datammen in Qingyuan, Zhejiang Province (2*2.5MW), Liangtou Power Station in Pingyang County (2*0.5MW), Mu Shutian Power Station (3*1MW), Gechangqiao Power Station (2*1MW + 0.8MW), Baishuiji Power Station (2*0.8MW), Dongningjing Hydropower Station in Xiangyuan County, Shanxi Province (2*0.4MW), Dazhuqing Grade II Hydropower Station (2 x 6.3MW Horizontal Impact Turbine) in Lanping County, Yunnan Province,etc.

Integrated automation transformation of hydropower stations: The integrated automation transformation of power stations such as Sanchaxi Power Station in Taishun (2*22MW), Sanchaxi Second-level Power Station (2*4MW), Dishan Power Station in Xinchang, Zhejiang (2*2MW), Dasai Power Station in Longquan (4*0.63MW + 1*1.25MW), Linjiang Power Station in Longquan (3*0.5MW), Shimen Power Station in Pingyang County (4*0.5 + 2*0.2MW), and Xianju Hydropower Station in Taishun County (2*12.5MW).

Electrical tests of hydropower stations: Electrical handover tests of power stations such as Tingminghe Power Station in Nujiang, Yunnan (2*20MW), Guanbei Power Station in Yangshan, Guangdong (2*3.2MW + 1.6MW), and Egahe Power Station in Nujiang (3*15MW); Previous electrical preventive tests of Hongxi Second-level Hydropower Station in Taishun (2*4MW) and Wengxi Hydropower Station in Taishun (1*1.6MW); Electrical preventive tests of Liangtou Power Station, Baishuiji Power Station, Mu Shutian Power Station, Jiaoxi Power Station, and Shimen Power Station in Pingyang County in 2022; Electrical preventive tests of Fengchunling First-level Power Station, Fengchunling Second-level Power Station, Fengchunling Third-level Power Station, Yangxihe Second-level Power Station, and Yangxihe Third-level Power Station in Yuanyang County, Yunnan Province in 2023.

Technical renovation projects of hydropower stations: Replacement, installation and commissioning of two governors, excitation systems and butterfly valves in Laowohe Fourth-level Hydropower Station of Shenneng Hydropower; Rectification and defect elimination of switch cabinets and cable trays, renovation of three excitation systems and three governors in Bajiaohe First and Second-level Hydropower Stations; Renovation of two excitation systems and two governors in Aluhe Hydropower Station; Renovation of three excitation systems in Latudi Hydropower Station; Replacement of three governors in Laowangzhuang Hydropower Station of Huaneng Lancangjiang; Replacement, installation and commissioning of two governors and two ball valve control cabinets in Fengdianhe Second-level Hydropower Station. Technical renovation of 110kV disconnector at Zilinghe Hydropower Station, and technical renovation of relay protection voltage circuits at Buguluo River First Hydropower Station, Bajiao River First and Second Hydropower Stations, and Laowo River Fourth Hydropower Station.ect.

Overhaul projects of hydropower stations: Each unit A overhaul since 2020 in Laowohe Fourth-level Hydropower Station of Shenneng Western Nujiang Division; Five unit C overhauls in Dudukuluohe First and Second-level Hydropower Stations in 2023; Three unit C overhauls in Latudi Hydropower Station; Unit A overhauls of No. 2 and No. 4 units and unit C overhauls of No. 1 and No. 3 units in Zilenghe Hydropower Station; Two unit C overhauls in Gudanhe Hydropower Station; Unit A overhaul project of No. 2 unit in Bajiaohe First-level Hydropower Station in 2024; Mechanical and electrical equipment repair and replacement projects after the July 28th disaster in Husahe Third and Fourth-level Hydropower Stations in 2023 of Shenneng Western Dehong Division; Unit A overhaul project of No. 5 unit in the capacity expansion of the second phase of Binglangjiang. Five units of the Sidu River Hydropower Plant (2*12MW + 3*0.8MW) of Yunnan Nujiang Power Generation Co., Ltd. of China Energy Group are under maintenance; Unit 2 of the Guning Hydropower Station (2*1.6MW + 0.8MW) of Luliang Liantai Industrial Co., Ltd. of Yunnan Power Grid Corporation is undergoing Class A maintenance; and Unit 2 of the Yueluo Hydropower Station (2*10MW vertical Francis turbine) of Zhaotong Gaoqiao Power Generation Co., Ltd. in Yunnan is also undergoing Class A maintenance, etc.

The technical renovation project company has maintained good cooperative relations with Guangzhou Qingtian Industrial Co., Ltd., Wuhan Changjiang Control Equipment Research Institute Co., Ltd., Wuhan Sanlian Control Equipment Co., Ltd., Wuhan Water Treatment Valve Co., Ltd. and Hangzhou Guowang Technology Co., Ltd.

The specific items are listed in Table 2.

Table 2: List of Installation, Commissioning Projects of Mechanical and Electrical Equipment of Hangzhou Lvchuan Hydropower Technology Service Co., Ltd.

No	Project Name	Installed Capacity, Type, Parameters	Completion Time	Type	Quality	Geographic Position
1	Taishun Wengxi Hydropower Station	1×1.6MW, horizontal mixed-flow, head 160m, 10kV	2006.6	Installation	Excellent	Taishun, Zhejiang
2	Unit 3 of Dazhaihe Third-level Hydropower Station	1×5MW Horizontal impulse, head 500m, 110kV	2009.9	Installation	Excellent	Jinping, Yunnan
3	Fengchunling Third-level Hydropower Station	2×6.3MW，horizontal mixed-flow, head 316m, 110kV	2011.1	Installation	Excellent	Yuanyang, Yunnan
4	Fengchunling First-level Hydropower Station	2*6.6 + 2*0.4MW, horizontal impulse + horizontal mixed-flow, head 345m + 90m, 110kV	2013.9	Installation	Excellent	Yuanyang, Yunnan
5	Fengchunling Second-level Hydropower Station	2×5MW, horizontal mixed-flow, head 185m, 110kV	2014.6	Installation	Excellent	Yuanyang, Yunnan
6	Yangxihe Second-level Hydropower Station	2*6.5MW, horizontal impulse, head 400m	2016.5	Installation	Excellent	Yuanyang, Yunnan
7	Halonghe First-level Hydropower Station	2×2.5MW Horizontal impulse，head 316m	2016.5	Installation	Excellent	Honghe, Yunnan
8	Datammen Hydropower Station	2×2.5MW Horizontal impulse，head 230m	2017.1	Installation	Excellent	Qingyuan, Zhejiang
9	Liangtou Hydropower Station	2×0.5MW Horizontal impulse，head 230m	2017.9	Installation	Excellent	Pingyang, Zhejiang
10	Baishuiji Hydropower Station	2×0.8MW Horizontal mixed-flow, head 130m	2019.7	Installation	Excellent	Pingyang, Zhejiang
11	Gechangqiao Hydropower Station	2×1.0+0.8MW Horizontal mixed-flow, head 103m	2019.6	Installation	Excellent	Pingyang, Zhejiang
12	Mushutian Hydropower Station	2×0.5MW Horizontal mixed-flow, head 100m	2019.5	Installation	Excellent	Pingyang, Zhejiang
13	Dongningjing Hydropower Station	2×0.4MW Horizontal mixed-flow, head 20m	2018.9	Installation	Excellent	Xiangyuan, Shanxi
14	Sanchaxi Hydropower Station	2×22MW, vertical mixed-flow, head 160m, 110kV	2012.1	Integrated Automation Transformation	Excellent	Taishun, Zhejiang
15	Shimen Hydropower Station	4×0.5 + 2*0.2MW, horizontal impulse, 35kV	2018.5	Integrated Automation Transformation	Excellent	Pingyang, Zhejiang
16	Dasai Hydropower Station	4×0.63 + 1.25MW, horizontal mixed-flow, 35kV	2019.5	Integrated Automation Transformation	Excellent	Longquan, Zhejiang
17	Linjiang Hydropower Station	3×0.5MW, vertical axial-flow, 10kV	March 2020	Integrated Automation Transformation	Excellent	Longquan, Zhejiang
18	Dishan Hydropower Station	2×2MW, vertical axial-flow, 35kV	2020.4	Integrated Automation Transformation	Excellent	Longquan, Zhejiang
19	Sanchaxi Second-level Hydropower Station	2×4MW, vertical mixed-flow, head 27.12m, 110kV	2022.1	Integrated Automation Transformation	Excellent	Taishun, Zhejiang
20	Xianju Hydropower Station	2×12.5MW, vertical mixed-flow, head 110m, 110kV	2024.1	Integrated Automation Transformation	Excellent	Taishun, Zhejiang
21	Sanchaxi Second-level Hydropower Station	2×4MW, vertical mixed-flow, head 27.12m, 110kV	2009	Pre-test	Excellent	Taishun, Zhejiang
22	Hongxi Second-level Hydropower Station	2×4MW Horizontal mixed-flow, 110kV	2013, 2016, 2020, 2024	Pre-test	Excellent	Taishun, Zhejiang
23	Taishun Wengxi Hydropower Station	2*0.5MW + 1×1.6MW, horizontal impulse + horizontal mixed-flow, 10kV	2013, 2016,	Pre-test	Excellent	Taishun, Zhejiang
24	Pengxishui Hydropower Station	2×0.5MW Horizontal mixed-flow, 35kV	2016	Pre-test	Excellent	Taishun, Zhejiang
25	Tingminghe Hydropower Station	2×20MW, vertical impulse, 110kV	2015.5	Handover Test	Excellent	Lushui, Yunnan
26	Egahe Hydropower Station	3×15MW, vertical impulse, 110kV	May 2020	Handover Test	Excellent	Lushui, Yunnan
27	Guanbei Hydropower Station	2×3.2+1*1.6MW Horizontal mixed-flow, head 230m	2019.7	Handover Test	Excellent	Yangshan, Guangdong
28	Unit #2, #4 Overhaul and Unit #1, #3 C-Overhaul of Zilenghe Hydropower Station	4×6MW Horizontal impulse，head 600m	2024.4	Overhaul	Excellent	Fugong, Yunnan
29	Unit #1, #2, #3 C-Overhaul of Latudi Hydropower Station	3×6.3MW Horizontal impulse，head 500m	2024.4	Overhaul	Excellent	Fugong, Yunnan
30	Unit #1, #2 C-Overhaul of Gudanhe Hydropower Station	2×12.5MW Vertical impulse, head 500m	2024.4	Overhaul	Excellent	Fugong, Yunnan
31	Unit #1, #2 C-Overhaul of Dudukuluohe First-level Hydropower Station	2×15MW Vertical impulse, head 500m	2024.4	Overhaul	Excellent	Lushui, Yunnan
32	Unit #1, #2, #3 C-Overhaul of Dudukuluohe Second-level Hydropower Station	3×20MW Vertical impulse, head 600m	2024.4	Overhaul	Excellent	Lushui, Yunnan
33	Unit #1, #2 A-Overhaul of Laowohe Fourth-level Hydropower Station	2×12.5MW Vertical mixed-flow, head 175m	2021.6、2024.6	Overhaul	Excellent	Lushui, Yunnan
34	Unit #2 A-Overhaul of Bajiaohe First-level Power Station	3×5MW Horizontal impulse，head 500m	May 2024	Overhaul	Excellent	Lushui, Yunnan
35	Transformation of Governor and Butterfly Valve Oil Pressure Device of Sanchaxi Second-level Hydropower Station	2×4MW, vertical mixed-flow, head 27.12m, 110kV	2018.10	Technical renovation	Excellent	Taishun, Zhejiang
36	Transformation of 2 Governors, Butterfly Valves and Excitation Systems of Laowohe Fourth-level Hydropower Station	2×12.5MW Vertical mixed-flow, head 175m	2022.12-2024.4	Technical renovation	Excellent	Lushui, Yunnan
37	Transformation of 2 Governors of Xianju Hydropower Station	2×12.5MW, vertical mixed-flow, head 110m, 110kV	2024.1	Technical renovation	Excellent	Taishun, Zhejiang
38	Transformation of 3 Governors of Laowangzhuang Hydropower Station	3×3.2MW, horizontal mixed-flow, 110kV	2024.4	Technical renovation	Excellent	Lanping, Yunnan
39	Transformation of No. 1, No. 2 Governors and Butterfly Valve Oil Pressure Device of Fengdianhe Second-level Hydropower Station	3×3.2MW, horizontal impulse, 110kV	May 2024	Technical renovation	Excellent	Lanping, Yunnan
40	Transformation of 3 Governors of Bajiaohe Second-level Power Station	3×5MW Horizontal impulse，head 500m	November 2024	Technical renovation	Excellent	Lushui, Yunnan
41	Repair and replacement of mechanical and electrical equipment at Hushahe third and fourth hydropower stations after the 7.28 disaster	35kV step-up substation	Nov-Dec 2023	Electromechanical installation and maintenance	Excellent	Yingjiang, Yunnan
42	Overhaul of Unit 5 at the Binlangjiang Phase II Expansion Station	10MW, vertical mixed-flow	Apr-May 2024	Overhaul of Unit A	Excellent	Yingjiang, Yunnan
43	Dazhuqing Grade II Hydropower Station	2×6.3MW Horizontal impulse，head 400m	June 2025 - March 2026	mechanical and electrical installation	Excellent	Lanping, Yunnan
44	The secondary construction project for the connection of Dazhuqing Power Station to the 110kV Shideng Substation	Replacement of the line protection for the 35kV Shizhu Line at Shideng Substation	December 2025 - February 2026	Relay protection replacement	Excellent	Lanping, Yunnan
45	The maintenance project of five generating units at the Sede River Power Plant of Guoneng Nujiang Power Generation Co., Ltd.	2*12MW+3*0.8MW	December 2025 - February 2026	C-repair for 2 units of 12MW and B-repair for 3 units of 0.8MW	Excellent	Gongshan, Yunnan
46	The A maintenance of Unit 2 of the Guning Hydropower Station of Luliang Liantai Industrial Co., Ltd. of Yunnan Power Grid Corporation	Axial-flow fixed-pitch 1.6MW	March  - April 2026	Overhaul of Unit A	Excellent	Luliang, Yunnan
47	The A maintenance of Unit 2 at the Yueluo Power Station of Zhaotong Gaoqiao Power Generation Co., Ltd. under Yunnan Power Grid Corporation.	vertical mixed-flow,10MW	April-May 2026	Overhaul of Unit A	Excellent	Daguan, Yunnan