World's richest man on geothermal power South Korea earthquake technology thinking

In a number of new energy, geothermal power has natural advantage, cause no huge boiler equipment, no smoke and ash pollution to the environment, is a clean energy, and hydropower and thermal power generation cost is low.

but any energy has its own defects, in November 2017, the southeastern city of posco 5. 4 earthquake, the earthquake for the 1978 South Korea's second largest earthquake since start measuring earthquake. To this, the south Korean government released on March 20, 2019, earthquake caused by geothermal power plants nearby, rather than a natural earthquake.

when it comes to the South Korea announced the results of a survey, there are media reports said, participate in DiaoYanTuan overseas investigation committee for the activities of the two geothermal drilling area near the epicenter and the influence of the independent analysis. According to the analysis of local power plant for the use of geothermal power to the underground injection of high pressure water, leads to the unknown fault zone is activated, triggered the posco main shock of the earthquake, caused & other; Man-made & throughout; 。

the 'securities journal' reporter survey found that in many ways, inject high-pressure water, indeed for a normal operating procedures of geothermal power generation, it is reported, drilling water, geothermal power generation program is first treated geothermal water heating, after extraction steam to drive the turbine generators. But due to the drilling as deep as 4 to 5 km, water injection process may cause the earth's crust looseness fault stress increases, caused an earthquake. International authoritative journals 'science' was published last year, Korea university earth environmental sciences professor Li Jinhan south Korean research team's findings. But there are also opinions, points out that only four injection is such a large earthquakes is impossible.

compared to other new energy niche, geothermal power actually has a long history, in 1913, the first installed capacity of 0. 25 mw of geothermal power station in Italy is built and run, marks the beginning of commercial geothermal power generation. At present, the world's largest geothermal power plant is cover sur, geothermal power plants in the United States. Its the first geothermal power generation unit ( 11MW) Launched in 1960, after 10 years, 13 mw, 27 mw and 27 mw have been put into operation. 9 units were put into production in the 1970 s, 80 s, and have produced a large number of units. Which in addition to the 13 # unit capacity is 135 mw, more than the rest of 110 mw unit.

by the end of 2017, China's installed capacity of 20000 megawatts (mw) ground source heat pump, the world's maqun owns by shallow geothermal energy equivalent to 19 million tons of standard coal, realize heating ( Refrigeration) Construction area of more than 500 million square meters, mainly distributed in Beijing, tianjin, hebei, liaoning, shandong, hubei, jiangsu, Shanghai and other provinces and cities of the city, including the development and utilization of the largest of the beijing-tianjin-hebei region.

have declined to be named experts to 'securities daily' reporters, geothermal power has various advantages, but there is currently still cannot solve the technical problems, such as: geothermal power plant can also use the cooling tower will waste heat released into the atmosphere, in order to avoid the heat pollution. Cooling tower make-up water comes from steam itself, so there is no need to foreign sources. Geothermal steam before through the turbine, first enter the centrifugal separator, removing the rock and dust, and then condensing into warm water, through the cooling tower, make 75% & ndash; 80% turned into steam, the rest of the cooling water return condenser. 过剩的冷却水由于积累了硼氨等污染物，应排注地下，而不应该排注水体。

it solved the pollution problem, but could trigger earthquakes; But may also be due to injection in succession to gradually sliding rock, but slowly lift the backlog, so that to avoid the breaking of the earthquake. What the outcome, has to be carefully monitored.

in addition, the experts say the geothermal belongs to one resource regeneration is slow. Geothermal steam production can only be used for a period of time, its length is difficult to estimate, probably between 30 a to 3000 a. Due to use water more than the reinjection water, use of geothermal power, finally may cause ground settlement, it must be attention.

however, hot standing in the world to have got the approval. In early march this year, by Jeff & middot; Bezos, bill & middot; Mr. Gates and Mr. Ma billionaire fund investment funds such as Break Energy Ventures is preparing to a company called Baseload geothermal project development company invested $12. 5 million of Capital.

Baselload Capital is an investment company, it USES the parent company of Sweden Climeon development technology for construction of geothermal power plants.

just like Google Dandelion of the break-up of Alphabet to the parent company, recently raised $16 million through a new round of financing Climeon firms are also creating standardized machine to the development and utilization of geothermal Energy. But Dandelion Energy company mainly geared to the needs of the consumer market, in order to use its technology to home heating; While Climeon company will geothermal energy into electricity. Said a spokesman for the company, the company's module about two cubic meters can produce 150 megawatts of electricity, enough to power supply for about 250 European family.

in the two sessions this year, there are also representatives said the basis of geothermal well in our country, has considerable experience, also have successful cases. Now the task is to put the can use of geothermal resources, from shallow to deep to use, expand the model results, and carry forward can be reproduced.