Sichuan private car charging post

A foreign technology company has given a perfect solution: the solar cone they developed is composed of thousands of triangular solar panels. With a specially designed condenser and rotating cone, they can obtain 20 times more light than before, while maintaining the temperature of the core conversion components within a safe range, greatly improving the energy conversion efficiency. Industry insiders believe that this innovation has practical operational significance for photovoltaic power generation, but large-scale popularization still needs to consider the cost and further technical improvement. In order to popularize the application in any industry, it is essential to continuously reduce the cost. Photovoltaic power generation was once very expensive, but driven by economies of scale, the cost of photovoltaic power generation has been declining in recent years, and now it is very close to parity. All this depends on the continuous innovation of photovoltaic technology.

Sichuan private car charging post

Although the proportion of new energy vehicles is increasing year by year, its absolute number is much less than that of fuel vehicles. According to the reporter, consumers are dissatisfied with new energy vehicles (mainly pure electric vehicles) mainly in the following two aspects: first, there are relatively few charging piles and charging time is long. Although it is convenient to install by yourself, it is an indisputable fact that in a big city like Beijing, there are only a few parking spaces of their own, and most of them are parked at the roadside. Second, the endurance mileage is not long enough. If you travel far, you will be in trouble once you cannot find the charging post. Chen Qingtai, president of the China Electric Vehicle Hundred People Association, believes that the basis for the rapid growth of electric vehicles is that the cost performance and convenience of electric vehicles should reach or exceed that of fuel vehicles. Therefore, in addition to technological progress, charging infrastructure construction must also keep pace.

Sichuan private car charging post

Any problems arising from development must be solved with a development perspective and innovative practice. By innovating the operation mode of "mixed ownership", Shenzhen has solved the problem of "one kilometer after Z" in the promotion of new energy public transport, and the measures to realize the pure electrification of exclusive public transport are worthy of reference for the industry. "The charging pile has a large capital investment and rapid technology update. Without the intervention of companies with technical reserves and market power, it would be difficult for enterprises to survive." As one of the top three bus companies in Shenzhen, Yu Gang, the chairman of Shenzhen Bus Group, has a deep understanding of the "charging pile problem" encountered in the promotion of pure electric bus. Yu Gang introduced that the public transport group in a city in China had invested more than 200 million yuan to build 200 charging piles, each charging pile cost about 1 million yuan, 2-3 times the market price. Z could not recover the cost at last, and because it could not keep up with the technology update, many equipment was currently idle.

Sichuan private car charging post

Miao Wei, minister of the Ministry of Industry and Information Technology, said at the China Electric Vehicle Hundred Talents Forum (2018) that the current vehicle to pile ratio of 3.5:1 across the country still cannot meet consumers' demand for charging. With the continuous growth of the number of new energy vehicles, the problem of insufficient structural supply of charging infrastructure has become increasingly prominent, and the overall scale is still lagging behind. In 2020, China plans to build about 500000 public charging piles. However, compared with the annual production and sales of 2 million vehicles and 5 million vehicles in the 2020 plan, the number of charging piles still does not match, and the vehicle pile ratio even tends to deteriorate. In addition, the layout of charging facilities in China is also not reasonable. The utilization rate of public charging piles is less than 15%. A sustainable business development model has not yet been formed. There is still a two-way contradiction between operating enterprises' profitability difficulties and consumers' high charging prices.

Sichuan private car charging post

AC type: Technical requirements for AC charging pile (plug) 1. Requirements for environmental conditions: ① Working environment temperature: - 20 ℃~+50 ℃; ② Relative humidity: 5%~95%; ③ Altitude: ≤ 1000m; ④ Installation site: outdoor; ⑤ Seismic capacity: ground horizontal acceleration 0.3g; Ground vertical acceleration 0.15g; The equipment shall be able to withstand three continuous sine waves under simultaneous action, and the safety factor shall be greater than 1.67; 2. Structural requirements: ① The shell of AC charging pile (bolt) shall be firm; ② In structure, it is necessary to prevent hands from easily touching the exposed part; ③ The AC charging post (bolt) shall be a steel composite structure with a thickness of more than 1.0, and the surface shall be treated with plastic immersion, and the requirements for heat dissipation shall be fully considered. The charging pile (bolt) shall have good shielding function against electromagnetic interference; ④ The charging pile (bolt) shall have sufficient support strength;

Sichuan private car charging post

At present, solar cells are divided into several types according to the raw materials, structures and manufacturing methods used. Among them, crystalline silicon solar cells mostly refer to monocrystalline silicon solar cells and polycrystalline silicon solar cells using silicon semiconductor substrates as raw materials; In addition, there are amorphous silicon solar cells, which are made by evaporating amorphous silicon on glass substrates rather than silicon substrates based on the same film preparation method as liquid crystal panels. Monocrystalline silicon solar cells form solar cells on monocrystalline silicon substrates, and there are also products with conversion efficiency up to about 20%, which have excellent performance and reliability. However, the price of silicon substrate as raw material is expensive, and the power generation cost per watt is high. Although the conversion efficiency of polycrystalline silicon solar cells is lower than that of monocrystalline silicon solar cells, they have the advantage of relatively low cost.