Up to now, the domestic marine wind power generation projects are very small, and there has never been such a high-power wind turbine unit developed by Nanao Group Company, or it is used by domestic research institutions for technical verification, and the technical performance is naturally not comparable with the wind turbine unit of Nanao Group Company, and the investment scale is very small, and it is natural that the scale of scale can not be formed. +∧ Eight + ∧ Eight + ∧ Reading + ∧ Books, .※.→o

Nanao Group has invested more than 5 billion yuan to build these offshore wind power plants, one is to train the engineering and technical team in this area, and the other is to let everyone see that investing in wind power plants can make money.

Such a 4-megawatt wind turbine can obtain about 90,000 kilowatt-hours of electricity from the air every day without consuming any fuel, and even if the electricity price is 3 dimes for the grid, it can obtain close to 300 million yuan of revenue a year, and basically recover the cost in one year.

At present, the construction cost of building such an offshore wind turbine can be controlled at about 14,000 yuan per kilowatt according to the domestic cost level, which means that the cost of building such an offshore wind turbine is less than 60 million yuan.

The international cost is close to 30,000 yuan per kilowatt, and it takes more than 100 million yuan to build such a 4 megawatt offshore wind turbine.

Because Nanao Group has mastered all the core technologies, with the expansion of production scale, even if the cost is reduced, there will be enough profit margins.

Of course, such wind power plants are not suitable everywhere, and they need to be selected in places where wind power is concentrated, and the scale of construction will still be subject to many restrictions.

The sea area near Xuejia Island is a windy area, and Nanao Group is also preparing to build 100 4 MW wind turbines in this sea area. (3) ≠ eight (3) ≠ eight (3) ≠ read (3) ≠ books, .↗●

At the same time, Nanao Group has plans to build wind power plants of the same scale in Jiangsu, Zhejiang, southern Fujian and Qiongzhou provinces.

Yang Jie saw two large wind turbines standing in the sea in the distance of the island, and the next day he also took Luan Hongyu and others to inspect the two generator units by boat.

Luan Hongyu has now been promoted to the general manager of Nanao Group, responsible for the engineering and construction business of Nanao Group.

Luan Hongyu, as the manager of the converter station engineering technology department of the research institute in the research of ultra-high voltage flexible DC transmission technology, was gradually promoted to the position of general manager, which is of course what Yang Jie meant.

Yang Jie, a talent with outstanding technical ability and the ability to work in the most difficult environment, is naturally to be reused.

There are internal cadre selection standards within Nanao Group that more than 60% of the management must be promoted from the outstanding talents working in the front line, so a large number of middle and senior cadres of the Nanao Group are talents with front-line work experience, and their work style is very pragmatic.

In fact, not only Nanao Group, but also the entire Huaxing Group Company cadre selection is this standard, the more people who can have work experience in a difficult environment, the easier it is to be promoted.

Luan Hongyu has been staring here for this time, and Yang Jie also brought him to inspect these two wind turbines.

"Yang Shao, these two fans have been struck by lightning a total of 8 times in the past six months, but there was no damage at all in the follow-up inspection. ”

When approaching the wind turbine unit, Luan Hongyu said to Yang Jie proudly.

Yang Jie then climbed under the tower, and despite the dissuasion of Zheng Chao and others, he climbed from the narrow suspension ladder inside the tower to the inside of the main engine above for inspection.

Luan Hongyu also climbed up, and personally explained the parts inside to Yang Jie in detail.

On the way back, Luan Hongyu also mentioned some of his thoughts on the construction of the wind turbine tower base on the seabed.

"Yang Shao, we have also calculated that when the water depth exceeds 50 to 60 meters, the price of installing underwater foundations becomes extremely expensive, so we are also developing a floating floating wind turbine construction plan. ”

"Tell me what you think. ”

"The idea was to design a base that could float up, a ballast tank made of steel and concrete, and fastened to the seabed with anchors and steel cables to ensure that the base would not shake in the event of a typhoon. ”

Luan Hongyu said: "The installation of offshore wind turbines is a complicated matter, not only to install the foundation, tower, nacelle, but also to install the blades one by one, and the installation has extremely high requirements for the marine environment, in case of bad weather, it will be stopped, so the cost of offshore wind turbine construction and installation is very high." If floating wind turbines are used, they can be pre-installed around the terminal and then transported by tugboat to the designated sea area, which can greatly reduce the cost and installation time. ”

"In addition, there are many places with good wind conditions in the sea where the water depth is 100 meters or more, which means that we can develop more offshore wind energy. ”

Yang Jie nodded: "Well, this is a very good plan, you should first do a good job in this research and development and technical verification, and then promote it after it is mature." ”

"Okay, Yang Shao!"

Luan Hongyu said happily.

In the construction of these two offshore wind turbines, the company also solved a variety of technological problems such as production, assembly, painting, etc., successfully laid the pile foundation embedded in the submarine rock on the seabed, and then built the construction of two wind turbines, and also arranged personnel to follow the Dutch personnel on the submarine laying ship for training and learning.

The acquired submarine laying vessel is still capable of completing the engineering task of laying cables in the offshore zone.

At present, the electricity generated by these two offshore wind farms can meet the electricity consumption of the shipbuilding base in Xiwan District, and also supply power to the residents of Xuejia Island.

When all the 400 megawatts of offshore wind turbines in the sea area of Xuejiadao are completed, the surplus electricity will also be supplied to Qingdao.

At the same time, Huayuan Group will also launch a seawater desalination project and electrolysis hydrogen production project in Qingdao to make full use of this cheap wind energy resource.

Of course, the cost of onshore wind power construction is actually lower, and there are many windy places in China, so the development of wind power generation technology can be said to have a large market space.

Now the domestic people for fuel cell power stations such as environmental protection and safety of new power stations have become commonplace, the number of domestic thermal power plants has become less and less, some local provinces and cities for the emergence of resistance to the emergence of thermal power plants, but also make the market space of thermal power plants smaller and smaller.

When the company and several coastal provinces of Qilu Province are talking about the demonstration project of marine wind power plants, officials in these provinces are also very supportive of the construction of wind power plants that are cheaper than fuel cell power plants, after all, these projects will bring a lot of economic income and create jobs for the local area. 11