In recent years, the State Grid Hubei Power Company has adhered to the concept of green development and vigorously promoted green shore power in the Three Gorges reservoir area. All cruise ships in the core area of ​​the Three Gorges have used clean shore power to help win the battle against pollution.

The Three Gorges Dam, the world's largest water conservancy project, continuously supplies clean water and electricity to all parts of the country.

The Three Gorges Project has also promoted the rapid development of the Yangtze River shipping. The Three Gorges Ship Lock exceeded 100 million tons in 2011, reaching the design passing capacity 19 years ahead of schedule. Under the upper dam of the Three Gorges Dam, there are an average of more than 260 ships waiting to be gated every day. At the peak, nearly one thousand ships are parked. The average waiting time of each ship is more than 44 hours.

In March 2015, the reporter saw at the anchorage of Shawan that more than 50 ships waiting to be docked stopped at the shore. Because most ships use diesel engines to generate electricity, Jiang Feng will blow black smoke to the shore, and the roaring motor sounds one after another. Deafening.

"We also feel that the pollution is very big, but we must use fuel to generate electricity to maintain the operation." Liao Changming, the owner of Guoping No. 5, told reporters that the sound of diesel power generation is 90 decibels, and the noise also makes them very painful.

“As soon as the generator is ringing, it will be shocking and short-lived, and it will not sleep.” Du Guowen, the owner of the Xijianglou farmhouse restaurant near the anchorage of Shawan, said.

According to Yichang Maritime Safety Administration, there are 140,000 ships waiting to be gated to the Three Gorges every year. Diesel power generation emits about 10 tons of sulfides, 4,000 tons of carbon oxides and about 3 tons of PM2.5. The air quality of the dam area and the spawning area of ​​the Chinese sturgeon. The ecological environment poses a threat.

State Grid Hubei Power actively responded to the country's demand for energy consumption revolution and air pollution control. On April 1, 2015, the first shore power pilot project in the Three Gorges reservoir area was put into operation.

"Before the waiting period, our ship will burn more than 300 yuan of diesel power, use 10 hours of electricity every day, and can use electricity 24 hours after receiving the power. It only costs about 100 yuan per day, and it also relieves the crew's work of rotating power generation. Pressure." Liao Changming told reporters.

Rong Yanhai, director of marketing department of Yichang Power Supply Company, introduced that since 2015, the company has promoted shore power in three typical ways: “the cruise ship terminal specializes in shore power, the anchorage to be changed to shore power, and the low-voltage shore power of the barge terminal”. The annual power consumption of the ship's shore power is nearly 5 million kWh, equivalent to 1062.5 tons of alternative fuel.

Rong Yanhai admits that although the shore power promotion has achieved initial results, it also faces two prominent problems: First, due to the inconsistent ship rebuilding technology and interface standards, the immature business model, and the difficulty of payment, the promotion is difficult. Faced with the "built a lot, not used much"; Second, the difficulty of comprehensive promotion, the water level drop of the anchorage on the Three Gorges Dam reached 30 meters, the labor intensity of the electrification is large, and the enthusiasm of the cargo ship is not high. At the same time, the ship under the Three Gorges Dam was not enough to draught on the shore, and it was not docked at the heart of the river. The shore power could not be sent to Jiangxin.

The difficulties encountered in the promotion of shore power in the Three Gorges reservoir area have attracted great attention from the state. The Ministry of Ecology and Environment, the Ministry of Transport, and the National Energy Administration have repeatedly investigated the pollution control work of ships in the Three Gorges Dam area.

On September 25, 2017, the Ministry of Transport, the National Energy Administration and the State Grid Corporation signed a strategic cooperation agreement to establish a strategic partnership to jointly promote the use of shore power by vessels on the port and further reduce pollution emissions from ships.

According to the person in charge of the State Grid Hubei Electric Power, under the leadership of the government, the company cooperated with the overall planning of the shore power of the Yangtze River and the northern section of the Yangtze River, and improved the specific technical solutions for the Three Gorges shore power, in accordance with the difficulties of the first, the first, the small, the first and the second. Principles, step by step to promote the construction of shore power projects.

Under the impetus of Yichang Power Supply Company, Yichang City established a shore power cooperation alliance. The member units include the energy office, design unit, management department, user unit, and power supply company to provide a package solution for the popularization of shore power.

The person in charge of Yichang Power Supply Company introduced that the shore power alliance has formulated a typical plan to standardize transformer settings, power supply pile configuration, ship power connection mode and operation and maintenance mode, etc., to integrate water surface power into the distribution network construction category, optimize the shore power distribution along the line, and study Establish a shore-based payment platform common to social operators, and greatly enhance the service experience through the “scan code shore power” system.

The reporter saw at the port terminal of Yichang City Center that the scan code shore power system consisted of shore power piles, mobile terminal APP, and shore power operation service platform. After the ship arrived at the port, the crew connected the cable to the standardized shore power pile. The mobile terminal scans the two-dimensional code and can be powered on. The system starts to automatically measure the power consumption. When the ship leaves the port, it can scan the two-dimensional code again to clear the electricity. The interface standard is standardized and the payment platform is convenient and universal. According to the cooperation agreement between Yichang Power Supply Company and the Municipal Transportation Bureau, the scanning code shore power system will soon cover all the port terminals along the Yangtze River.

Without the roar of diesel generators, the “Century Legend” docked at the tourist pier of Taohua Village is like a five-star hotel on the river surface, which brings visitors a comfortable experience. “Before traveling to the Three Gorges, there was a generator sound all night on the cruise ship. Now it’s quiet at night, and it’s fun to have a good rest!” said Ms. Su from Shanghai.

Zhang Bo, the person in charge of the Taohua Village Tourist Terminal, calculated that the “Century Legend” cruise ship will stop for 17 hours. 400 tourists will stay on the ship and rest. The original electricity consumption will consume 2 tons of diesel per day, and the operating cost will reach 14,000 yuan. Nowadays, after using shore power, it only needs more than 3,000 kWh of electricity, and the operating cost is only one-third of that of burning oil.

After solving the problem of convenient use of shore power, in the competition of various energy consumption, shore power has also been fully recognized by the market.

In recent years, with the popularity of the tourism market, the “Three Gorges Family” in the 5A-level scenic spot decided to build a long-term beached moored cruise ship. “At first, the scenic spot wanted to use diesel to generate electricity, and even proposed a plan to use natural gas to generate electricity. However, through comprehensive comparison with the shore power plan, it was decided to adopt shore power.” The person in charge of the scenic spot introduced Xian Xianbin. Yichang Power Supply Company took the initiative to open up a green channel and added a 630 kVA transformer to the scenic spot within 10 days. It is expected to increase the power supply by about 600,000 kWh per year and reduce pollutant emissions by about 1.5 tons.

According to Rong Yanhai, the power consumption of the cruise ships is large. The average daily electricity consumption of each cruise ship is more than 1000 kWh. Through the “scanning code charging”, a relatively mature business model has been formed.

Up to now, there have been 28 port terminals in the Yichang section of Yichang to complete the shore power transformation, with a power supply capacity of 31,555 kVA. More than 110 of the tourist ships have all used clean shore power, and the number of tourists and tourists has exceeded 1.2 million. In the first quarter of this year, electricity consumption along the Yangtze River in Yichang City increased by 21% year-on-year.

“It is different from the high-frequency use of the shore power of the cruise terminal, and the use efficiency of the anchorage shore power is obviously lower.” Liu Wei, deputy general manager of Zigui County Power Supply Company, said that 80 dedicated shore power stations were built on the Dam Bay anchorage, but The annual power supply is only about 20,000 kWh, and the utilization rate is not high.

Wu Hao, director of the marketing department of Hubei Power Marketing Department of the State Grid, said that in order to solve this problem, the company invited the State Grid ICT Industry Group Corporation, the Yangtze River Shipping Design Institute, the Yangtze River Ship Design Institute and other units to jointly compile the Three Gorges Dam Area. Shore Power Engineering (Anchor) Technology Research Program. On January 30th, the technical plan passed an expert review organized by the Hubei Provincial Energy Bureau.

On April 18, the reporter saw at the anchorage of Shawan that the employees of Zigui County Power Supply Company were carrying out the preliminary work of installing the intelligent lifting rails on the slope protection. After the shore power piles were installed on the track, they could be between 145 and 175 meters above the water level. Free sliding, shortening the length of the electrical connection to less than 50 meters, solving the problem of difficult cable deployment due to water level drop during power connection.

"After the completion of the shore electric intelligent lifting rails, we will put a QR code on the shore. After the cargo ship is docked, as long as the mobile phone is swept, the service behind us is done by us, just as easy to use as a shared bicycle! Liu Wei introduced that the company has also established a WeChat group that is joined by the maritime management department, the cargo ship company and the crew. When the cargo ship needs to be used for electricity, as long as a WeChat is sent 30 minutes in advance, the power supply company can quickly provide the power supply service.

In the Linjiangping River anchorage downstream of the Three Gorges Dam, due to the lack of water depth on the shore, more than 40 cargo ships waiting to be moored in the middle of the Yangtze River did not dock, resulting in the inability to access shore power, and it is urgent to find a new type of Shore power supply mode.

"The average daily electricity consumption of cargo ships is around 100 to 300 kWh. The electricity consumption is not large. We will provide mobile energy storage solutions, and use the ship as an electric vehicle to provide electricity by changing the battery." Rong Yanhai introduced, preliminary It is planned to build a smart charging station for electric vehicles and ships in the two ports before and after the Jiangxin anchorage. The cargo ship will be docked at the Yunchi terminal before entering the Jiangxin anchorage. The power supply company will provide a 90 kW battery for its use. More than one day, before the gate is over, the battery will be replaced by the terminal at the central port.

The 140,000 ship waiting for the gate is equivalent to 140,000 sub-electric vehicles. The "E-Charging" APP can be used to build a ship-network charging service network, which can effectively solve the problem that the shore-based power supply cannot be extended to the river. Yichang Power Supply Company has conducted technical demonstrations with relevant parties for many times and will carry out demonstration applications in the second half of this year.

Zhu Yinjun, deputy director of the Hubei Power Marketing Department of the State Grid, believes that if the shore power is well-received and called, it requires the close cooperation of relevant government departments, comprehensive use of economic, legal, technical and necessary administrative means, and the use of market mechanisms to mobilize the enthusiasm of enterprises. For example, California has enacted the “Control of the emission of toxic gases from auxiliary engines of sea-going vessels anchored in California ports”. Since January 1, 2017, it will implement a mandatory new standard for the use of shore-based power for ships.

In the next step, Yichang City will strengthen the monitoring and enforcement of ship pollution emissions. The “Implementation Plan for the Prevention and Control of Air Pollution Prevention and Control in Yichang City” proposes that 80% of the port terminal power supply transformation in the city should be completed in 2018, and full coverage will be achieved in 2020.

The person in charge of the State Grid Hubei Electric Power said that in order to protect the Yangtze River, it is necessary to carry forward the spirit of nailing and continue to exert strength for a long time. It is estimated that by 2020, the construction of Yichang port and ship shore power facilities will be 137 million yuan. All the ships in the Three Gorges reservoir area will use clean shore power. The annual electricity consumption of shore power will reach 23.8 million kWh, which can replace fuel oil. 5057.5 tons, equivalent to 9.15 tons of carbon monoxide, 15.41 tons of nitrogen oxides and 24.08 tons of sulfur dioxide.

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