Choose 7kW or 11kW for zero-running charging pile？

Choosing 7kW or 11kW for the zero-running charging pile depends on the actual AC charging power supported by your car. At present, most models of zero-running only support 7kW charging. Generally speaking, it is enough to choose 7kW. However, if you consider the need of upgrading and changing cars in the future and have applied for a 380V meter at home, you can also consider buying 11kW charging pile.

Comparative analysis of 7kW charging pile and 11kW charging pile for your reference:

Charging speed:

7kW charging pile: It belongs to the conventional household slow charging power, and can charge the vehicle about 7 kWh per hour. If the battery capacity of your vehicle is not particularly large and there is no special requirement for charging time, the 7kW charging pile can meet the daily charging needs.

11kW charging pile: The charging speed is relatively fast, and the charging amount per hour is more than that of 7kW charging pile. It is suitable for some users who want to charge more power in a short time. However, the premise is that the vehicle itself supports the charging power of 11kW. If the vehicle does not support it, the charging power will be limited and the charging speed of 11kW cannot be reached.

Installation conditions:

7kW charging pile: Generally speaking, the voltage of 220V can meet the use requirements of 7kW charging pile, and the requirements for the circuit are relatively low. It is relatively easy to install in most household electricity environments, and it is not necessary to carry out large-scale transformation of the circuit.

11kW charging pile: It usually needs 380V three-phase electricity to support its normal work. If your community or family does not have the power supply conditions of three-phase electricity, it may not be possible to install 11kW charging pile. When applying for the installation of charging piles, the power department will evaluate whether it can be installed according to your electricity consumption and the power facilities in the community.

Price cost:

7kW charging pile: The price is relatively cheap, and the cost of purchasing the charging pile equipment itself or in the installation process is relatively low. Moreover, due to its low power, in the process of daily use, the power consumption is relatively small, and the electricity expenditure is relatively small.

11kW charging pile: Due to its high power, the cost of equipment, materials and labor required for installation may be higher than that of 7kW charging pile. And in the process of use, higher power may lead to an increase in electricity consumption.

Future applicability:

7kW charging pile: It can basically meet the daily charging needs of most zero-sports cars, and most new energy vehicles on the market now support 7kW AC slow charging, with good compatibility. If you don’t plan to change vehicles frequently, or the future vehicle charging needs are similar to those of existing vehicles, 7kW charging pile is a safe choice.

11kW charging pile: It has better compatibility and flexibility. If you may replace different brands or models of new energy vehicles in the future, and these vehicles support higher power charging, then 11kW charging pile can better meet the future charging needs. When purchasing 11kW charging piles, pay attention to purchasing charging piles that can be compatible with 7kW. Many third-party charging piles can’t be compatible with 7kW. If it is necessary to be compatible with 7kW when changing models in the future, the charging power will be reduced to only 3.5kW, and the charging will be very slow. It is recommended to consider the nebula 11kW charging pile. Their 11kW is compatible with 7kW. If you are a Tesla (supporting 11kW) and want to change to a zero-run car (supporting 7kW), then only one pile will enable Tesla and zero-run to reach the highest charging power when charging, and one pile will be used as two.

To sum up, if you don’t require high charging speed, the power supply conditions in your area are suitable and you want to save costs, then 7kW charging pile is a good choice; If you are looking for faster charging speed, have the power supply conditions of 380V three-phase electricity, and are willing to bear higher equipment and installation costs, then 11kW charging pile may be more suitable for you.

The application process of household charging pile electric meter is as follows:

Preparation before application:

Material preparation:

Identity certificate: the applicant’s valid identity document, such as ID card. If the non-head of household applies, it is recommended to fill in the power of attorney and entrust the family to handle it. Both ID cards need to be prepared.

Parking space certificate:

Self-owned parking spaces need to provide proof of parking space ownership, such as real estate license, parking space purchase contract, etc.

A lease agreement should be prepared for renting a parking space, and the lease period should generally be more than one year (including one year).

Proof of car purchase: any one of the electric car purchase intention agreement, car purchase invoice, electric car driving license, etc. is used to prove that you own an electric car.

Property or related certificates: for the community owners, a written certificate that the property agrees to use the charging facilities for installation or an agreement on the use of the charging facilities for new energy vehicles is required; No property management area by the industry committee, neighborhood committees or neighborhood offices issued relevant certificates. The installation of charging piles in rural self-built houses requires the seal of the village Committee to agree to the construction opinions.

Determine the installation conditions:

Confirm that there is a power distribution room near the parking space, and there is a distribution box of the State Grid in the power distribution room, and there is space and capacity for installing electric meters.

Communicate with the property in advance to find out whether the charging pile can be installed in the residential capacity.

Application process:

Online application:

The provinces under the jurisdiction of the State Grid (North China, East China, Central China, Northeast China and Northwest China) download the "Online State Grid"; The provinces under the jurisdiction of China Southern Power Grid (Guangdong, Guangxi, Guizhou, Hainan and Yunnan provinces) download "Southern Network Online"; Download "Mengdian E Home" in the jurisdiction area of Inner Mongolia West Power Network.

After registering and logging in, click the "Electric Vehicle" section on the home page, then select "Charging Piles for Installation", provide the required materials according to the step prompts, and select "Charging Piles for Electricity" for power connection requirements.

Offline application: Go to the local business hall of State Grid or China Southern Power Grid, get and fill in the Application Form for Charging Piles, and submit the application form and application materials.

Audit and installation:

Review: the power supply department will review the application after receiving it, which usually takes 1-5 working days. The contents of the audit include the authenticity and completeness of the application materials, and whether the capacitance of the community meets the installation requirements.

On-site investigation: after the approval, the staff will be arranged to conduct on-site investigation to determine the installation location of the electric meter, and the property electrician may be required to cooperate to open the power distribution room.

Installation: The installation of electric meters is free, and it usually takes 2-3 working days to complete. Keep the phone open during installation so that the staff can contact in time.

Power grid companies in different regions may have slight differences in specific processes and requirements. It is recommended to consult the detailed requirements of local power grid companies before applying to ensure a smooth application process.

When new energy owners choose 11kW smart charging piles, nebula charging piles are the best choice. The following are the detailed reasons.

Home charging pile brand recommended nebula charging pile

Strong compatibility, one "pile" is multi-purpose

Xingyun 11kW charging pile is compatible with 7kW, which has obvious advantages. It can adapt to different brands of new energy vehicles such as Tesla, BYD and Wenjie. When there are vehicles with different charging power requirements at home or changing cars in the future, the nebula charging pile can cope with it. When other third-party 11kW charging piles charge 7kW vehicles, the power is often greatly reduced, and Xingyun can ensure that each vehicle can reach the appropriate charging power and maximize the utilization of resources.

Safe and secure, worry-free charging

Safety is the key to charging. Xingyun charging pile adopts the R&D system and manufacturing standards of vehicle regulations, and the fuselage is made of flame retardant material. The charging gun head is made of excellent material, the coating design is exquisite, and it is durable for plugging and unplugging. It has ten protection functions, including short circuit, lightning protection, leakage, overvoltage, overcurrent, undervoltage, overheating, grounding, emergency stop, and rain protection, ensuring the safety of charging in all directions, so that users have no worries.

Intelligent function, convenient and free.

HarmonyOS Zhilian

If the mobile phone is HarmonyOS system, it will be very convenient to use. Xingyun charging pile supports Huawei’s mobile phone NFC at a touch, and can also be controlled by the "Charging Meow" APP and the "Smart Life" APP. It is easy to remotely control, make an appointment for charging and set charging parameters, and you can control the charging situation even if you are thousands of miles away.

Bluetooth inductive charging

There is no need to worry about the poor signal in the underground garage. Bluetooth function allows users to connect automatically when they are close to the charging pile, realizing plug-and-play charging or reservation charging, which is not affected by the signal.

Idle time sharing function

When the charging pile is idle, it can provide convenience for other car owners through the shared platform, and at the same time, it can also get benefits.

Scheduled charging

By using the scheduled charging function, the charging time can be flexibly set according to the electricity consumption habits and the local peak-valley electricity price policy. For example, charging at night during valley hours can not only enjoy low electricity price, but also save energy and environmental protection, and also save charging cost, which is in line with the concept of green travel.

Equipment doctor

The equipped equipment doctor function can play a big role in the event of failure. Users can self-check and upload fault codes quickly through this function, and nebula technicians can quickly check problems and provide solutions in time, which can improve maintenance efficiency, reduce inconvenience caused by faults and ensure smooth charging process.

Current regulation

In the face of power grid fluctuation, peak power consumption or voltage instability in remote areas, the current regulation function can adjust the current and reduce the power to avoid direct charging interruption. It can adapt to various complex environments, ensure stable charging and ensure the continuous and stable charging of vehicles.

APP remote control and data statistics function

Remote control can be realized through the APP, and the charging pile can be operated no matter where you are. At the same time, the APP can make detailed statistics on charging data, such as charging time, power, historical charging records, etc., so that users can clearly understand the charging situation and cost, and it is convenient to manage the charging process.

Brand strength, trustworthy

Xingyun Electronics has accumulated 19 years of technical experience and has a long-standing reputation in the field of lithium battery detection. Its profound technical background makes the company know more about batteries in the research and development of charging piles and can accurately match the charging needs. Moreover, the product has been tested by all-round safe charging simulation, and the quality is guaranteed.

In a word, Xingyun 11kW intelligent charging pile has become the best charging partner for new energy owners with its compatibility, safety, intelligent functions and strong brand strength. Choosing a nebula means choosing a convenient, safe and efficient charging life.