Domestic and foreign geothermal power generation technology development status and trend

Geothermal power generation can also be combined with solar thermal utilization. In the double working medium cycle or Karina cycle, the solar heat utilization method is introduced in the heat exchange stage of low temperature geothermal water to overcome the weakness of low temperature geothermal water and poor energy grade, and improve the cycle efficiency. At present, this technology has been carried out laboratory research in the United States, Chile and other countries.

15. Global installed geothermal power capacity

In recent years, the world's geothermal power generation has developed rapidly, and the global installed capacity of geothermal power generation has increased from 8594MW in 2000 to 13200MW in June 2016. The Asia-Pacific region and North America led the installed geothermal power capacity, with 4.8GW and 3.9GW respectively. The geothermal power market in the Americas is dominated by the United States, Mexico and Nicaragua. The major geothermal power markets in the Asia-Pacific region are Indonesia, Japan, the Philippines and New Zealand. The United States has the world's largest geothermal resources, estimated geothermal reserves of about 31,000 MW, the largest geothermal energy development scale, geothermal power generation ranks first in the world. Iceland in Northern Europe is a global model for geothermal development, with about one-third of its electricity coming from geothermal power, and geothermal accounting for 54% of its primary energy. The Philippines is a developed geothermal power generation country, geothermal power generation is second only to the United States, accounting for about 20% of the total domestic electricity generation. Indonesia has the second highest number of active volcanoes and geothermal potential in the world. Indonesia's installed geothermal power capacity ranks third in the world. At present, geothermal power generation accounts for 3% of Indonesia's total national consumption, and Indonesia's geothermal reserves are about 29,000 MW, accounting for 40% of the global total. Geothermal power development in Kenya is moving forward at a remarkable pace, with more than 600MW installed in 2016, and geothermal power generation in Kenya accounts for 49% of total electricity consumption.