Rooftop PV plant recovers costs less than 5 years

You can use your own power to generate electricity. You can sell it to the country if you use it. Since August 19, Zhang Hairun, a resident of the village of Shangtou, who lives in the upper block of the street, has watched how much electricity has been sent from the meter on the top floor every day. His family has just built a photovoltaic power station at his own expense.

Power generation at 158 ​​degrees for 5 days and a half "There are 17 or 8 degrees of power generation per day, depending on weather conditions." Zhang Hairun has been busy with his own photovoltaic power generation project since March of this year, and finally succeeded in grid connection on August 19th. The electricity generated by his home's photovoltaic panels, in addition to his own use, can also be sold to the national grid.

Zhang Hairun’s photovoltaic power generation board was installed on the roof of his own building, and the Power Supply Bureau of Shangjie District also specially installed equipment such as meters for him. In the past few days, he had to go to the roof every day to see how much electricity was delivered. At 4 pm yesterday, He specifically looked at the meter: 158 degrees.

Zhang Hairun said that in fact, the grid-connected test began in the afternoon of August 17. It started to generate electricity during the test period and was formally connected to the network on August 19.

Zhang Hairun said that many residents went to his home to look at the equipment and felt that the investment was not profitable. However, as the final price for the acquisition of the State Grid has not yet been introduced, these residents are still watching.

What kind of house do I need?

The installed capacity of 1000 watts requires a roof area of ​​7.5 square meters and 2000 watts requires 15 square meters. For the time being, single-family houses such as villas, townhouses, remote areas and rural areas are more suitable for distributed photovoltaic power generation projects, while urban apartments The roof area is limited and it faces the problem of households sharing. All landlords need to agree and the community sign it to apply. Find a construction unit to evaluate. After determining that the installation conditions are met, residents can apply to the power department.

How long does it cost to recover?

Taking Zhang Hairun’s photovoltaic power station as an example, his power plant covers an area of ​​30 square meters and has an installed capacity of 4 kilowatts. The main equipment is a set of 16 solar panels and a grid-connected inverter. The equipment life is 25 years and the investment is less than 30,000 yuan.

According to the original equipment design and local lighting time, summer can generate 30 kWh per day in summer, 12 kWh in winter, and can generate about 6,000 kWh in the whole year, and consume about 1000 kWh in the home. The remaining 5000 kWh can be sold to the country. The power grid can recover costs in less than five years.

How do residents apply?

Bring ID card, ** book, real estate certificate or property ownership certificate, go to the power business office to apply.

The power sector surveys on-site how to connect the photovoltaic power generation system to the power grid system and issues an opinion letter on the access system according to site conditions.

Based on the opinion letter of the access system, the construction company was hired for design, construction and installation.

After completion of the construction, apply for acceptance and commissioning.

The electric power department arranges the personnel to carry on the acceptance to the installation, install the meter, sign the connection agreement with the resident.