"Our electric car can be charged anytime and anywhere in the countryside, which is convenient and affordable!" Last weekend, Mr. Chen's family from Hangzhou drove to liangjiadun, dingqiao town, a landmark of net red in Haining city. after eating a meal at the farmhouse, his electric car was "fully charged and revived.

This also benefits from the energy Internet. At the end of 2017, the comprehensive pilot demonstration project of urban energy Internet in Jiaxing, Zhejiang Province was officially launched. Jiaxing is gradually transforming into a low-carbon energy Internet city with clean energy, efficient power grid, green transportation, low-carbon buildings and smart energy.

　　Building a new energy supply and demand balance system

In 2017, the National Energy Administration announced the first batch of 55 "Internet-connected smart energy" demonstration projects, of which 12 were urban energy Internet comprehensive demonstration projects. The Zhejiang Jiaxing Urban Energy Internet Comprehensive Pilot Demonstration Project jointly declared by the State Grid Zhejiang Electric Power Co., Ltd. and the Jiaxing Municipal People's Government has become one of the 12 comprehensive demonstration projects.

"This means the arrival of a period of urban development in which energy is used cleanly and efficiently." State Grid Zhejiang Electric Power Co., Ltd. Electric Power Research Institute Vice President Zhou Ziqiang introduced. The demonstration project includes two categories: infrastructure and R & D integrated energy service platform. It will take the urban energy big data sharing platform as the core and the smart and efficient power grid as the support to improve the integration of clean energy, low-carbon buildings, smart electricity, green transportation and other fields. Infrastructure, to achieve a new energy supply and demand balance system with multi-resource coordination, low-carbon energy saving, information sharing, supply and demand interaction, and open mode, form a "Zhejiang model" that can be promoted and replicated, and finally form a Zhejiang model of "low-carbon energy saving, information sharing, and interaction between supply and demand", set a benchmark, and replicate and promote it on a larger scale.

What are the benefits of energy Internet to Jiaxing? Distributed photovoltaic power generation is no longer unfamiliar to Jiaxing. The application of photovoltaic reduces the power load to a certain extent, and in the future, ground source heat pump, water source heat pump and cooling, heating and power triple supply technology will further improve energy efficiency and clean energy utilization ratio. Take the ground source heat pump as an example, because the underground temperature is high, if you want to use heating in winter, you can first introduce water at room temperature of only a few degrees Celsius into the ground, use geothermal heat to heat the water first, and then use electric heating, then heat to the specified temperature The electricity consumption will be greatly reduced, not only reducing the electricity load, but also making full use of the clean energy of geothermal heat.

"Simply put, the urban energy Internet is to focus on electricity, use energy more intelligently and efficiently, and establish a platform for interconnection, comprehensive utilization and optimized sharing. The construction of the urban energy Internet is a green, low-carbon, safe and efficient modern energy ecosystem based on the smart grid, with the 'Internet' as the means and electricity as the main carrier." Zhou Ziqiang told reporters that after the launch of the Zhejiang Jiaxing Urban Energy Internet Comprehensive Pilot Demonstration Project in Haining, it will be gradually implemented with an investment of more than 0.1 billion yuan. "The project has now passed the review, and the project will be subject to bidding and technology research and development in accordance with regulations. It is expected to be completed by the end of 2019."

　　Haining will take the lead in building an energy Internet city

"Given that Haining has a solid foundation for urban energy Internet construction, we will eventually put the pilot in Haining." State Grid Jiaxing power supply company deputy chief engineer Zhou Jianhe said. Haining is rich in renewable energy resources such as solar energy, biomass energy, and wind energy. Wind power and photovoltaic power generation are growing rapidly. The construction of various energy infrastructure is at the forefront, and the project will eventually be settled in Haining.

"The demonstration project mainly includes the active distribution network Haining demonstration project, Jianshan New District distributed photovoltaic power generation project, Haining City 'million family roof photovoltaic project', Haining City family roof photovoltaic grid connection supporting project and other sub-projects." Zhou Jianhe introduced.

On the roof of the residents' houses in Dongpeng Community, Yuanhua Town, Haining City, a large number of photovoltaic panels are shining, continuously converting solar energy into electricity. In the center of a power distribution room not far away, neat rows of large-capacity batteries show that it is different from other power distribution rooms.

"The whole power distribution room is like an oversized charging treasure, but its electric energy comes directly from solar energy, so it is a 'super solar charging treasue '". State Grid Zhejiang Haining City Power Supply Co., Ltd. Technician Zhu Xin introduction. Last year, the province's first residential photovoltaic energy storage power station was completed and put into operation in Haining.

At the same time, the green transportation construction of Haining City has begun to take shape. At present, 28 charging stations, 292 charging piles, 53 electric car rental power stations and 305 charging piles have been built, mainly distributed in high-speed service areas, public parking lots, stadiums and other places. "It is planned to complete the construction of 1000 charging piles within 3 years, forming a 2km charging service circle for urban electric vehicles." Zhou Jianhe said.

In the future, on the basis of the existing grid frame in Jianshan New Area, Jiaxing City will pilot the implementation of active distribution network in Haining, to achieve supervision, power generation, power grid, users of the "four win-win", at the same time for the development of new energy high penetration area power grid to provide a replicable active distribution network "Zhejiang model". In addition, a new energy business model and mechanism will be established to support economic and social transformation and development with a more scientific and reasonable energy consumption structure. At the same time, we will accelerate the construction of smart communities, smart buildings, new energy vehicles and other projects, and comprehensively and effectively carry out comprehensive low-carbon city services and applications.