Can rural solar installations connect to the grid? A comprehensive guide to grid-connecting residential solar power systems.
For rural households considering the installation of rooftop photovoltaic systems, a common question is whether these systems can be connected to the public grid. This query is widespread among those interested in such installations. In reality, provided the conditions stipulated by relevant regulations are met, rooftop photovoltaic systems installed by farmers can indeed be grid-connected for power generation.
Many people considering the installation of a photovoltaic (PV) system worry that the local grid company might refuse to connect their privately installed setup. In reality, such concerns are unfounded; the state has been vigorously promoting distributed PV projects and—far from restricting individual farmers from installing PV systems on their own rooftops—actively supports the practice.
What are the requirements for a private grid-connected photovoltaic installation?
To install a grid-connected photovoltaic power system, one must first ensure clear ownership of the roof; ideally, this applies to a privately owned home with a property title deed, or—in the case of a self-built rural house—proof of ownership issued by the village committee. Additionally, the roof must provide sufficient surface area and load-bearing capacity; generally, a south-facing orientation is most suitable.
The installation of photovoltaic equipment must comply with national standards, requiring the selection of certified PV modules and inverters. For grid-tied systems, a grid connection plan must be provided by the utility company—a process that requires professional assessment. In some regions, grid capacity is already nearing saturation, so a waiting period may be necessary.
What is the process for installing a private grid-connected photovoltaic system?
The first step is to submit a grid-connection application to the local power supply service center, bringing along relevant documents such as your ID card, property ownership certificate (or proof of title), and household registration book. Subsequently, the power supply authority will conduct an on-site inspection within a specified timeframe and issue a grid-connection plan. Once you receive the plan, you can contact an installation company to proceed with equipment procurement and installation.
Once the photovoltaic power generation system has been installed, the owner must submit an application to the local grid company for acceptance and grid connection. The grid company will then dispatch professional personnel to the site to conduct an inspection, primarily to verify that the installed photovoltaic equipment complies with relevant national standards and grid connection requirements; the subsequent steps will proceed only after compliance has been confirmed.
Subsequently, the grid company installs a dedicated bi-directional meter for the user to simultaneously record the electricity fed into the grid from the photovoltaic system and the user's own electricity consumption; a formal power purchase and sale agreement is signed to clearly define the respective rights and obligations regarding the transaction. From the submission of the grid-connection application to the actual commencement of grid-connected power generation, the process takes approximately one to two months—provided everything proceeds smoothly—and is entirely free of charge, with the grid company imposing no fees related to the grid connection.
What should be considered when installing a private grid-tied photovoltaic system?
The electricity tariff for the grid-connected power generation project is composed of two parts: the local benchmark price for coal-fired power and the corresponding national subsidy; this pricing standard is subject to periodic adjustment based on actual circumstances. Electricity generated by the project is first used to meet on-site consumption needs, and any surplus is sold to the local grid; if there is a significant amount of surplus electricity, it may alternatively be carried over to the following month to offset future electricity costs.
In certain regions, a specific grid-connection model known as the "full feed-in" mode exists; under this arrangement, the entire output from local grid-connected power generation projects is aggregated and sold to the grid company, without provisions for prioritizing self-consumption or mechanisms for offsetting surplus electricity through storage.
As a high-tech enterprise, Changsong Electric Co., Ltd. possesses deep expertise in the field of electrical equipment for photovoltaic power generation systems. Integrating R&D, production, and sales, the company is dedicated to providing customers across the board with electrical connection and protection solutions that are safe, highly efficient, and intelligent.
The company's core products include...The product lineup is comprehensive, featuring PV grid-connection cabinets, grid-connection boxes, and combiner boxes, alongside specialized PV circuit breakers. These products fully address the requirements across the entire PV power plant value chain—from DC-side combining and protection to AC-side grid connection and power distribution—and offer flexible adaptability for diverse application scenarios, including residential distributed PV, commercial and industrial rooftop systems, and large-scale ground-mounted power plants.
It is advisable to select a photovoltaic installation company with extensive practical experience and a solid reputation in the industry. Before signing the contract, be sure to carefully review every clause and provision—paying close attention to key details such as the duration of equipment warranties and the specific division of responsibilities regarding grid-connection services.
After installation, the surfaces of the photovoltaic panels and any fallen leaves from the surrounding area should be cleaned regularly to ensure the cleanliness of the modules and maintain stable power generation efficiency. In the event of a malfunction, the service provider should be contacted promptly for repairs; generally, free repair services are available within the warranty period.