gas, oil shale and others, though Nagqu had long been severely backwards in energy production and usage to the point that at one stage only Nagqu Town had a 2 MW diesel power plant. Geothermal energy production began investigation in 1984. Nagqu geothermal field lies away from Nagqu Town, and covers an area of . Jiagang Hydropower Station in Xainza County was built in the 1990s and as of 2008 serves about 20,000 nomadic households across the county. In June 2019, Jinqiao Hydropower Station, the first hydropower station to be built with a rock-fill concrete gravity dam in Tibet, was inaugurated in Lhari County, serving some 30,000 local farmers and herdsmen in an area previously without electricity. The station and dam reportedly cost 1.4 billion yuan (about 202.7 million U.S. dollars) and has an annual power generation capacity of 357 million kilowatt-hours. With Nagqu being one of China's five biggest pastures, and possibly the highest in the world at 4,500 metres above sea level, most counties rely on animal husbandry, and few counties are semi-agricultural and semi-animal husbandry areas. As of 2017, the regional GDP in Nagqu was 11,982 million yuan (1,775 million US dollars), completed fixed assets investment 18,549 million yuan (2,747 million US dollars), urban and rural residents per capita disposable income reached 31,252 yuan (4,629 US dollars), 9,792 yuan (1,450 US dollars), total retail sales of social consumer goods 2,127 million yuan (315 million US dollars), tax revenue exceeded 1,000 million yuan (148 million US dollars). Agriculture and animal husbandry accounted for 1.923 billion yuan. By 2015, the manufacturing industry was expected to be valued at 1.852 billion yuan, an increase of 23.4%. Production of medicines and Tibetan carpets have significantly increased in recent times. As of 2015 there were 5 scientific research institutions and 11 agricultural and animal husbandry science and technology-related institutions, employing 5,856 professional and technical personnel. Culture Nagqu contains a number of Tibetan Buddhist monasteries. Shodain Monastery (also known as "Shodain Yarba" or "Shadain"), with around 350 lamas, is one of the most significant, and is governed by Sera Monastery in Lhasa. The monastery was established in 1884 and originally belonged to the Nyingma sect before the Geru sect. The 13th Dalai Lama lived at the monastery for over a month in 1908 during his return journey from Beijing. He inaugurated the Grand Summons Ceremony to be held annually on January 4 in