Geothermal power generation 'indirect trigger' South Korea's second-largest earthquake

My country is rich in solar energy, since the 1980 s began to promote farmers from 100 ~ 500 w to household solar power generation equipment. Then the project of the light solution to remote areas without electricity 2 3 million people living power. Since 2001, the implementation & other; The global environment fund/world bank & renewable energy development projects throughout; Villages and the support of the United Nations development program (undp) renewable energy power generation project plan, up to now, has installed more than 500000 sets of 100 ~ 500 w solar power equipment for the user, in remote areas and islands built at the county, township, village, schools with 1 kW, 10 kW to 100 kW solar power stations for nearly 1000 large and small, the cumulative total capacity has reached 50 mw, in the future will increase rapidly year by year at a speed of more than 30%. Built in yuzhong county in gansu province from 1985 garden township 10 kW solar power station, after more than 20 years, our country independent model in and below 100 kW of solar power equipment technology has been basically mature. In the future, in addition to continue to promote household and small and medium-sized solar power equipment, but also to large above 1 mw solar power plant development. In September 2004 in build up 1 mw solar power station, shenzhen city, guangdong province. 2007 years ago Shanghai prepared construction demonstration of the total capacity of 5 mw solar power station, the first in the construction of chongming island 1 mw solar power station. Prepare construction 2 mw solar power stations in panxi region of sichuan province. 2005 gansu dunhuang 8 mw grid photovoltaic power generation system construction preliminary feasibility report ', has passed the expert review, listed in the state & other; 11 & middot; Five & throughout; Planning, if built capacity will be more than the world's largest 6 now. 45 mw solar power plants. Now our country is engaged in the solar power generation technology research, development, production and application of the unit, which has more than 100, a similar wuxi suntech power co. , LTD. ( As shown in figure 2) And baoding yingli new energy resources co. , LTD and other well-known large enterprises, and other industries of large companies such as CLP electric group, China's solar power technology industry developed rapidly, already submitted before breakthrough of solar battery 20, 2006 mw, solar power generation equipment of accumulative total installed capacity of 80 mw As shown in figure 3) 。 However, there are still some problems. The main products are solar cell components upstream and downstream of the two outer: more than 90% of the original imports, dependent on exports more than 90% of the products. Is likely to hinder the development of solar power technology industry in China.

the south Korean government mission 20 press center in South Korea issued a formal investigation, according to a report in 2017 South Korea's posco area is not a big earthquake & other; Throughout the earthquake & nature; , but due to human activities & other Trigger earthquake & throughout; 。

on November 15, 2017, five north Korea pohang north road, yet. A strong earthquake with a magnitude 4. This is South Korea in 1978 with testing record second magnitude earthquake, aftershocks reached more than 100 times. According to statistical results released by the Korean central security disaster countermeasures headquarters, the earthquake didn't cause serious casualties, but bring direct economic loss of 54. 6 billion won. The south Korean university entrance exam is delayed due to earthquake disaster.

earthquake posco Korea national concern. Some public opinion and the public thought, only a few hundred meters away from the quake epicenter of posco geothermal power plants is likely to be triggered the culprit of the earthquake.

posco geothermal power station with two depth of 4 km to 5 km of geothermal Wells, a way with high-pressure water injection to produce water vapor, another collection of steam to drive the turbine to generate electricity.

in response to the public, the south Korean government was established in March 2018, a government survey research group. Mission in South Korea & other; Korean association of geological & throughout; As the main body, is composed of 16 domestic and foreign experts, divided into two parts, overseas investigation committee and the domestic investigation committee, independent operation.

work after almost a year, two commission to the same conclusion, that posco geothermal power plants to the geothermal well injection of high pressure water posco earthquake triggered the assignment.

investigation that power station works of original stress impact the vast underground rock belt, lead to the rupture, triggering the earthquake.

mission, Seoul national university professor Li Kanggen said in an interview with science and technology daily, in the process of the exploitation of the geothermal happened a series of small earthquake. The time of the earthquake are closely related to high pressure water injection time. These data is one of the important basis for final conclusion on the mission

he explained at the same time, posco earthquakes are caused by the activities of the exploitation of geothermal resources have already there is a danger of the earthquake fault stress changes indirectly & other; Trigger & throughout; ，“ It's just like pulling the barrel of the gun trigger & throughout; 。

the south Korean industry trade resources on the said & other; Deep regret & throughout; , and announced that, according to the commission's findings, the south Korean government will permanently stop posco geothermal power plant operation of the project, and will be back to the land to its original state. Also plans to invest 225. 7 billion south Korean won money over the next five years on the reconstruction of the disaster area.

is posco geothermal power station in 2010 to promote the lee myung-bak administration research and development projects. The media here said the poll was published, posco earthquake will be deemed to be a rushed building development of geothermal resources in & other; Man-made & throughout; , leading the development of the south Korean government could face huge compensation lawsuit.