In accordance with the annual deployment of energy regulatory tasks, the National Energy Administration has focused on the overall development of the energy sector, strengthening oversight of distributed photovoltaic grid connection, and making the situation of distributed photovoltaic grid connection a key component of comprehensive and routine regulatory activities in the power sector for the year. To further promote the healthy development of distributed photovoltaics and fully leverage the educational role of typical issues, the following are the seven typical problems related to distributed photovoltaic grid connection discovered during the comprehensive and routine regulatory activities of the power sector by the National Energy Administration in the year:

I. The deadline for grid connection of distributed photovoltaic projects is generally exceeded, affecting the progress of distributed photovoltaic project construction. Since the beginning of the year, a power supply enterprise in Yantai City, Shandong Province, has accepted applications for distributed photovoltaic power generation projects from households, with grid connection opinions issued beyond the 20-working-day limit for households, accounting for %, and beyond the 30-working-day limit for households, accounting for %. For example, a distributed photovoltaic power generation project in Yantai City submitted a grid connection application on [specific date], but the power supply enterprise did not accept it until [specific date], taking a total of [specific number of days]. Such actions violate the provisions of the "Interim Measures for the Management of Distributed Photovoltaic Power Generation Projects" (Guo Neng Xin Neng [2013] No. 43) regarding the time limit for responding to grid connection opinions.

II. Violation of expanding distributed photovoltaic access into the red zone, restricting the grid connection of distributed photovoltaic projects. A power supply enterprise in Harbin, Heilongjiang Province, determined that the distributed photovoltaic carrying capacity in the corresponding area was zero due to the reverse power transmission of centralized new energy power plants such as biomass to the kilovolt and above grid. For example, on a certain day in a month of a year, a certain kilovolt substation in Harbin experienced reverse power transmission from the main transformer due to increased output from the biomass power plant and reduced load caused by planned line maintenance. The county where the substation is located was identified as a red zone in the second quarter of the year, no longer allowing distributed photovoltaic access. This action violates the "Distributed Power Grid Connection Carrying Capacity Assessment Guide" (/ —) regarding the regulation that "if distributed power causes reverse power transmission to the kilovolt and above grid, the area's assessment level should be red."

III. The handling of the renaming and transfer of distributed photovoltaic (PV) projects is not standardized, affecting the fair grid connection of distributed PV projects. In Zhumadian City, Henan Province, a certain power supply enterprise has loopholes in meter management, allowing PV companies to directly collect meters and open accounts, even though the relevant projects have not been completed and connected to the grid, resulting in the transfer of meter space by some PV users; the management of renaming and transfer of PV projects is not standardized, and some projects, after completing the formalities of meter installation and grid connection, illegally handle renaming and transfer, leading to the transfer of grid-connected meters under the guise of renaming and transfer, and successful grid connection within the limited installation area. These actions violate the provisions of the "Electricity Regulation Regulations" (State Council Decree No.) and the "Regulations on the Supervision of Fair Grid Opening" (National Energy Administration Regulation No.) that power grid enterprises should provide grid connection services to power source owners fairly and without discrimination.

IV. Failure to provide proxy filing services to individual household photovoltaic users as required, increasing the burden of filing for individual household photovoltaic projects. Since a certain power supply enterprise in Shizuishan City, Ningxia Hui Autonomous Region, has not provided proxy filing services to individual household photovoltaic users as required. All individual household photovoltaic installations in the service area have been filed by users themselves at the filing authority, involving a certain number of households. This behavior violates the "Interim Measures for the Management of Distributed Photovoltaic Power Generation Projects" (Guo Neng Xin Neng [2013] No. 43) regarding the requirement that distributed photovoltaic power generation projects built by individuals using their own residential properties and within residential areas should be directly registered by the local grid enterprises and collectively filed with the local energy authorities.

V. The distribution of the system engineering for integrating distributed photovoltaic projects to the grid is handed over to the owners for self-investment and construction, increasing the investment costs of distributed photovoltaic projects. Since the year, a certain power supply enterprise in Nanning City, Guangxi Zhuang Autonomous Region, has responded to the medium voltage (10kV) integration system plans for a total of distributed photovoltaic projects. Due to reasons such as the power supply enterprise's inability to meet the owners' construction progress requirements, of these integration system projects were self-invested and constructed by the owners, accounting for %, and were not repurchased, collectively increasing the investment of distributed photovoltaic project owners by approximately 10 million yuan. Such actions are inconsistent with the provisions of the "Interim Measures for the Administration of Distributed Photovoltaic Power Generation Projects" (Guo Neng Xin Neng [2013] No. 138) that stipulate the integration system engineering for distributed photovoltaic power generation projects should be invested and constructed by the power grid enterprises.

Six, the deadline for settling distributed photovoltaic electricity fees is exceeded, affecting the revenue of distributed photovoltaic projects. In Hefei, Anhui Province, a certain power supply company delayed the settlement of distributed photovoltaic electricity fees by millions of yuan annually (millions of yuan not due to grid reasons), with some electricity fee settlements delayed for more than a year. For example, on January 10, 2021, the electricity fees for January-December 2020 totaling millions of yuan were settled with a certain new energy technology company in Hefei, and on January 15, 2021, the electricity fees for January 2020-January 2021 totaling millions of yuan were settled with a certain engineering management company in Hefei. These actions violate the provisions on the deadline for electricity fee settlement in the "Measures for the Settlement of Electricity Fees between Power Generation Enterprises and Grid Enterprises" (Guonengfa Jian [2020] No. 58).

VII. Violation of the Record-keeping of Distributed Photovoltaic Projects, Creating Market Barriers in the Distributed Photovoltaic Sector. Since a certain period, the Development and Reform Bureau of a district in Meishan City, Sichuan Province, has recorded a total of distributed photovoltaic projects, with a capacity of megawatts, including projects by a certain grain company in Meishan City, with a capacity of megawatts. The bureau arbitrarily added the precondition of "access point and line capacity" in the record-keeping of distributed photovoltaic projects without public disclosure; it also treated private enterprises differently, directly rejecting their officially submitted record-keeping applications without reason, or failing to record them for up to months; after rejecting the distributed photovoltaic record-keeping applications of private enterprises, it turned around and recorded them for its subordinate Meishan City Grain Company. These actions violate the regulations on project record-keeping management in the "Measures for the Verification and Record-keeping Management of Enterprise Investment Projects" (Order No. of the National Development and Reform Commission).

The above seven typical issues related to the grid connection of distributed photovoltaic systems have exposed problems in the pre-filing and grid connection processes of some power companies and local energy authorities, which have constrained the development of distributed photovoltaic energy. These issues are typical and representative. Power companies and relevant units should deeply learn from the lessons of these typical cases, draw inferences from them, and take them as a warning. They must raise their political stance, resolutely implement the decisions and plans of the Party Central Committee and the State Council on the green and low-carbon development of energy, further strengthen the management of distributed photovoltaic development and construction, optimize the business environment, and improve the efficiency of grid connection services, thereby promoting the high-quality development of distributed photovoltaic energy.