The geothermal power plant built by the Nanao Group Company is under the foothills of the Nianqing Tanggula Mountain in the north of the geothermal city, and the construction of the first phase of the project has now been completed.

The 84-megawatt geothermal power plant will be built in two phases, and the company will also have joint ventures with local power companies and power grid companies.

Nanao Group has drilled two high-temperature wells with a temperature of 205 degrees Celsius, high pressure and strong energy here, which has also laid a very good foundation for the company to build a geothermal power station.

In how to use these high-temperature and high-pressure geothermal steam, Nanao Group has also carried out several years of research and development, using dual-medium geothermal power generation technology.

These high-temperature and high-pressure geothermal steam does not directly work on the generator, but uses the heat exchanger to heat the pure water medium to drive the permanent magnet generator to work and generate electricity, and does not use unsafe media such as chlorobutane for heating.

The steam spewed out from the geothermal well contains a large number of corrosive impurities, which has a great impact on the life of the equipment if it is directly worked.

After Yang Jie came to the power station, he also had a detailed understanding of the internal facilities and equipment of the power station, the generator set did not use a steam turbine, but used the expansion power equipment developed by Nanao Group to promote the permanent magnet generator set to generate electricity, each generator power reached six megawatts, and the generator set technology came from the wind turbine developed by its own company.

The first phase of the project will build four such generating units, plus two hydroelectric generating units, for a total of 36 megawatts of electricity. The second phase of construction will use 8 MW generator units developed by Nanao Group.

At the same time, the power station is also equipped with a set of large-scale temperature difference generator set, using the semiconductor temperature difference battery technology developed by Huaxing Group itself, using the remaining high temperature steam of the generator set to generate electricity, although the power generation efficiency of this temperature difference battery is low, but this set of generator set also provides 30 kilowatts of power generation.

The construction of such a thermal power station by Nanao Group is mainly to verify the new technologies developed by Nanao Group and Huaxing Group in geothermal power generation technology over the years.

If the geothermal power plant can be operated efficiently, the company will expand its investment in the future.

The depth of the two wells drilled by Nanao Group is about 1,500 meters, but it is not easy to drill two wells, and the exploration company that signed the contract has drilled several wells to drill a geothermal well, and in order to improve the geothermal flow capacity, sand fracturing is added, and at the same time, Nanao Group does not want to drill two geothermal wells after a few years, so it is not good to drill back the irrigation well.

Because the cost of geothermal drilling is very high, especially the kind of dry hot rock wells that need to be drilled to about 5,000 meters, just drilling a well may cost hundreds of millions, and it may not be accurate.

Therefore, under the instruction of Yang Jie, Nanao Group Company also controls the depth of drilling wells at 1,500 meters as much as possible, and maximizes the utilization of the thermal energy of each geothermal well.

The previous Yangbajing geothermal power station had only 27 megawatts of power generation, because the maximum power of the generator units was only 3 megawatts that year, and the utilization rate of geothermal energy was insufficient, which was only equivalent to the electricity of nine 3 megawatt wind turbines.

For example, the use of single-phase steam and water transportation, and the use of two mother pipes to transport the hot water and steam collected from the hot wells in various places to the power station, making full use of the hot field steam, and increasing the power generation capacity by more than 30% compared with hot water power generation alone.

At the same time, in solving the problem of scaling in geothermal wells, it is also used to combine the use of mechanical wells and injecting scale inhibitors into the well, and the domestic scale inhibitors have long been localized, which is much cheaper than imported scale inhibitors.

Yangbajing geothermal contains sulfur, mercury, arsenic, fluorine and other harmful elements, after geothermal power generation a large amount of hot drainage directly into the river is not allowed, Yangbajing is also in the geothermal recharge technology has been studied.

However, in the past, the geothermal water was basically recharged directly back to the underground bay without treatment.

Yangbajing geothermal power station basically relies on hydropower generation in the second and third quarters of each year when the water is abundant, and hydrothermal power generation in the first and fourth quarters, and the energy complementarity.

Naturally, the Nanao Group also made use of the extracted geothermal water after treatment, and used two six-megawatt hydroelectric generators to generate electricity at the same time, so as to maximize the utilization of geothermal energy.

Huaxing Group has been developing high-power permanent magnet motors and generators over the years, and the power generation of the generators produced is world-class, and it is precisely because of this that the power generation of this power station is higher than that of Yangbajing geothermal power station with five geothermal wells!

The first phase of this geothermal power station has an investment of 1 billion yuan, and according to the contract of three cents per kilowatt-hour signed between Nanao Group and the local power company, this geothermal power station can generate more than 4,000 hours of stable power a year, and the state subsidizes two cents and five cents, and can make a profit of nearly 90 million yuan a year.

The high-level is still very encouraging for the Nanao Group to actively develop geothermal power stations in the Sichuan-Tibet region, and so far only one group company of the Nanao Group has been involved in the construction of geothermal power stations, so it is also very happy to give subsidies.

After the completion of the second phase of the project, this geothermal power station will basically generate electricity every year to bring 200 million yuan of revenue to the Nanao Group, and basically recover the cost within ten years.

If this geothermal power plant is completed, it will be able to supply electricity to the entire Tibetan area, and there will still be surplus.

The geothermal power station built by the Nanao Group is the largest in Tibet, and local officials also attach great importance to it, and Yang Jie also met with officials from the autonomous region the next day for talks.

In this meeting, Yang Jie also mentioned the idea that Nanao Group will build another geothermal power station, and invest 20 billion yuan with the Power Grid Group Company to build an ultra-high voltage flexible DC transmission network to transmit the power of the geothermal power station to Sichuan and Shu and other places.

Local officials were also very pleased with Yang Jie's proposal, and also expressed strong support, although the Yangbajing geothermal station has provided great support for the development of the local area for decades, but now it can no longer meet the development of Tibetan areas.

Now the big financier behind the Nanao Group is now investing so much in the development of geothermal power stations and sending electricity to the inland provinces, which will also bring a great boost to the economic development of Tibetan areas.

Naturally, local officials welcomed this.