The PV system load does not use the generated electricity, is there a way to wire the meter?

GoodWe PV inverter answers for you:

According to the "Notice of the National Energy Administration on Further Implementing the Relevant Policies of Distributed Photovoltaic Power Generation": the project that has been implemented according to the mode of self-consumption and surplus electricity is allowed to change to the full grid mode in the case of a significant reduction in the electricity load (including disappearance) or the power supply and consumption relationship cannot be performed, and the project unit shall apply to the local energy department for change for the record, and sign a new grid-connected agreement and power purchase and sale contract with the power grid enterprise. Power grid enterprises are responsible for applying to the Ministry of Finance and the National Energy Administration for changes in the subsidy catalog。

If it is connected to the grid for power generation, a two-way metering meter is an energy meter that can measure electricity consumption and power generation. Power and electric energy are directional, from the perspective of electricity consumption, the power consumption is counted as positive power or positive electric energy, and the power generation is counted as negative power or negative electric energy, the meter can read out the positive power and reverse power respectively through the display screen and store the power data.

The reason for the installation of bidirectional meters is that the electricity generated by photovoltaics cannot be fully consumed by users, while the remaining electricity needs to be transmitted to the power grid, and the meter needs to measure a number; When photovoltaic power generation can not meet the needs of users, it is necessary to use the electricity of the power grid, which needs to measure another number, and ordinary single meters cannot meet this requirement, so it is necessary to use smart meters with bidirectional meter metering functions.

The grid-connected meter of photovoltaic power generation is generally an electric energy metering equipment installed on the AC side of the photovoltaic power generation system connected to the power grid, which is used to calculate the amount of electricity supplied by the photovoltaic power generation system to the power grid. The access circuit of household three-phase electricity is another independent power system, and the two cannot be directly connected.

Although it is theoretically possible to connect the AC side of the photovoltaic power generation system to the access circuit of the household three-phase electricity, so that the power generation system can supply power to the household appliances, there are great risks in doing so. First, different power systems may have different voltages, frequencies, and phases, which are difficult to match with each other, which may lead to electrical damage or safety accidents. Second, it does not comply with the regulations of the relevant departments of electric power, and there is a risk of violating the law.

Therefore, if the household needs to use the electricity generated by the photovoltaic power generation system, an independent power system (such as a power generation system composed of inverters, batteries, etc.) should be installed and output to the access circuit of the household three-phase electricity. At the same time, it shall comply with the power safety management regulations formulated by the power department, pay attention to relevant safety matters when using the power generation system, and avoid accidents caused by improper use.

Hello, this state is different from place to place, so the time is also uncertain, generally speaking, the sun is generally closed to rent a day to two weeks to press the meter. As long as your previous work is done, the general power supply department will report the trillion data according to the materials, and then put the meter down.

First of all, this distributed photovoltaic is now going to the State Grid Corporation to apply for it by itself! Once you get the approval of the application, then you can install it.

I think you have this file state application approved from the installation. To install a meter! Two months is already very fast.

In the ranks of doing this photovoltaic power station project, it generally takes half a year for a photovoltaic power station at the earliest. Even distributed photovoltaics take a long time.

Coupled with the approval department of the State Grid, he needs to have a process for approval. Then add the number of grid-connected photovoltaic power stations in the line and the object, so you have to queue up to go through this program.

I think the two months you're talking about is a lot of time. If you are asking if it can be completed next month, then I, you, will be completed in two months. But there should be a lot of energy in the ante, but this is a relatively fast test paper, so you have to be mentally prepared for more than two months.

Okay, that's it, thanks for your attention.

Why can't the electricity meter under the photovoltaic dry be transmitted to the dry one?

There may be many reasons why the meter under the photovoltaic dry cannot be transmitted to the dry meter: <> cable or connection line failure: there may be problems such as damaged cables, loose terminals or poor contact, resulting in the signal cannot be transmitted to the dry meter.

Inspect the cables and connection lines to make sure they are in good condition and connected correctly. Communication module or device failure: The communication module or device used for data transmission in the PV system may malfunction, resulting in data not being transmitted to the meter on the dry side.

Check the status of communication equipment, such as communication modules, repeaters, data collectors, etc., to ensure that they are operating properly. PV system configuration issues: The configuration of the PV system may not be properly set up or paired, resulting in data not being transmitted to the meter on the dry side.

Check the system configuration parameters, such as communication protocol, baud rate, address, etc., to ensure that they match the dry power meter. <>

Dry and upper power meter access issues: The dry power meter may not be properly connected to the PV dry and offline power meter to be measured, resulting in data transmission. Make sure that the wiring of the dry power meter is correct and that it is properly connected to the PV dry power meter. <>

Data transmission distance or signal attenuation: If the distance between the PV system and the dry meter is long, or there is an interference source that causes signal attenuation, the data can not be transmitted to the dry meter. In this case, you can consider using a signal amplifier or adding a relay device to solve the signal transmission problem.

Hello, glad to answer for you. This doesn't exist. Now the photovoltaic power station is basically connected to the grid, the electricity generated during the day, can be used for its own use, and it will be automatically transmitted to the public power grid if it is not used up during the day.

At night, the photovoltaic power station basically does not generate electricity, and the electricity at this time comes from the public grid. The state subsidizes the electricity generated by photovoltaic power stations according to the yuan, which is the same throughout the country. In addition, you need to look at the local desulfurization coal electricity price, this is you sell electricity to the electricity bureau, and the electricity bureau will give you money according to this; There is also how much the local electricity cost, this depends on what kind of electricity is used, household electricity and industrial electricity are different.

Knowing the above data, you can calculate that for each kilowatt-hour of electricity generated by the power station, how much is the state's subsidy + electricity sold, and how much is the electricity fee for your electricity, there is a price difference between this. Different places, local subsidies are also different, many places have local jujube subsidies, but also according to each kilowatt-hour of electricity subsidies, whether for self-use or transmission to the public power grid. There are two meters connected to the photovoltaic power station, one is to count the power generation, the other is to count the electricity consumption, the national simple erection subsidy is based on the statistics of the electricity generation meter, and the profit from selling electricity is calculated according to the difference between the two meters.