Huaneng Group has commissioned a massive 5.43 GW hydro-solar hybrid project in Yunnan, Southwest China, as of April 27, 2026. Operated by Huaneng Lancang River Hydropower, this facility combines 4.2 GW of existing hydropower with 1.23 GW of new solar, designed to supply stable energy to the grid by using the dam as a "natural battery" to manage solar intermittency.

Huaneng Group has commissioned a massive 5.43 GW hydro-solar hybrid project in Yunnan, Southwest China, as of April 27, 2026. Operated by Huaneng Lancang River Hydropower, this facility combines 4.2 GW of existing hydropower with 1.23 GW of new solar, designed to supply stable energy to the grid by using the dam as a "natural battery" to manage solar intermittency. 

Key Details of the Project:
Location: -
The project is integrated with the existing 4.2 GW Xiaowan hydropower station on the Lancang River in Yunnan Province.
Capacity Breakdown: -
The 5.43 GW total capacity consists of 4.2 GW (hydro) and 1.23 GW (solar).
Integration: -
16 photovoltaic (PV) plants are connected through a single collection station, allowing the hydropower to smooth out solar output volatility.
Impact: -
The project is expected to generate approximately 20 TWh/year of electricity, capable of powering around 7 million households and reducing CO2 𝐢𝑂2 emissions by 16 million tons annually.
Technology: -
The project features fully localized core equipment, including monitoring systems, protection devices, and STAT COMs. 
The Xiaowan Dam, which is 292 meters high, provides essential regulation for the whole Yunnan province's grid by coordinating with this large-scale renewable generation. 
The specifics of the "hydro–solar intelligent control" system.
The long-term goals for China's renewable energy capacity.
   Based on a fully domestically controlled system for the hydropower plant, it has also achieved full localization of core equipment, including photovoltaic station.
MJF Lion ER YK Sharma 

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