After preparing the relevant materials, the distributed PV project owner submits an access application to the municipal or county-level customer service center of the grid company, and the customer service center assists the owner in filling in the access application form. Once the access application is accepted, within the time limit promised by the grid company, the customer service center will notify the project owner to confirm the access system plan. After the project is completed, the owner submits a grid connection acceptance and commissioning application to the customer service center; the grid company will install the electricity metering device, sign the power purchase and sale contract and dispatching agreement, and carry out grid connection acceptance and commissioning. After that, the project can start grid-connected power generation.