What is the most prominent energy source in China's Qinghai-Tibet region

I think we can consider it from three parts: the sky, the ground and the earth. The sky, there is solar energy, Tibetan area geographically speaking is solar energy rich area, can be large-scale development and utilization, some families have solar cooker, solar water heater, etc., and solar power generation has also been developed; Underground, due to the Tibetan area of the Asian-European plate and Indian Ocean plate collision and extrusion zone, the underground magma will be along the crust of the crustal weak zone invasion of the earth's crust, so that go to the geothermal energy resources are more abundant, but the distribution of geothermal heat There is a great deal of variability, and the degree of development is not enough; on earth, it can be divided into urban areas and pastoral areas, towns and cities generally use gas, while pastoral areas can also use environmentally friendly cow dung as fuel. In summary, the go the most launched resources should be the first solar energy resources.