This photo taken on April 6, 2023 shows a view of Yangyi geothermal power station in Damxung County of Lhasa, southwest China's Tibet Autonomous Region. The Yangyi geothermal power station, the highest-altitude geothermal power station in China, has generated over 500 million kilowatt-hours of electricity since it started operation on Sept. 29, 2018. (Xinhua/Jigme Dorje)

　　This aerial photo taken on April 6, 2023 shows a view of Yangyi geothermal power station in Damxung County of Lhasa, southwest China's Tibet Autonomous Region. The Yangyi geothermal power station, the highest-altitude geothermal power station in China, has generated over 500 million kilowatt-hours of electricity since it started operation on Sept. 29, 2018. (Xinhua/Jigme Dorje)

　　A staff member checks the operation of equipment at Yangyi geothermal power station in Damxung County of Lhasa, southwest China's Tibet Autonomous Region, April 6, 2023. The Yangyi geothermal power station, the highest-altitude geothermal power station in China, has generated over 500 million kilowatt-hours of electricity since it started operation on Sept. 29, 2018. (Xinhua/Jigme Dorje)

　　A staff member checks the operation of equipment at Yangyi geothermal power station in Damxung County of Lhasa, southwest China's Tibet Autonomous Region, April 6, 2023. The Yangyi geothermal power station, the highest-altitude geothermal power station in China, has generated over 500 million kilowatt-hours of electricity since it started operation on Sept. 29, 2018. (Xinhua/Li Jian)

　　A staff member checks the operation of equipment at Yangyi geothermal power station in Damxung County of Lhasa, southwest China's Tibet Autonomous Region, April 6, 2023. The Yangyi geothermal power station, the highest-altitude geothermal power station in China, has generated over 500 million kilowatt-hours of electricity since it started operation on Sept. 29, 2018. (Xinhua/Jigme Dorje)