State Grid Ningxia institute completes pilot distributed power hosting capacity evaluation

State Grid Ningxia Electric Power, the sole pilot entity in Northwest China among eight national designees, completed the trial calculation of distributed power hosting capacity under the newly revised guidelines for hosting capacity evaluation of distributed power connected to power systems on June 11.

The State Grid Ningxia Economic Research Institute provided all core technical support and successfully delivered the full set of trial calculations, establishing a solid data and technical foundation for orderly grid connection, efficient absorption, and safe operation of distributed sources on the regional grid.

The updated guidelines, issued in December 2025 and effective from June 2026, unify technical specifications, evaluation dimensions, and calculation methods for hosting capacity assessment nationwide. Their full implementation is considered vital for enhancing new energy absorption, ensuring grid stability, and advancing the new power system.

To ensure high‑standard and standardized execution, the institute adopted multiple measures, including targeted training sessions for frontline technicians from municipal and county power departments, focusing on core revisions and key technical clauses.

These sessions explained the calculation rules and essential points in depth, ensuring that staff fully grasped the new standards and reinforced the theoretical basis for the trial work.

The institute also developed customized work plans and platform operation manuals tailored to Ningxia's grid conditions. These documents detailed calculation workflows, standardized evaluation criteria, and clarified responsibilities, enabling standardized management throughout the process.

Through symposiums and exchanges, the institute shared interim results and practical experience with peer institutions in Northwest China, demonstrating its expertise in distribution network planning.

In March, the institute began operating a biweekly coordination mechanism to regularly track progress, address operational bottlenecks, and resolve calculation difficulties. Multiple rounds of trial calculation and verification were carried out, successfully completing all assigned tasks.

Based on local resource endowments and county‑level grid hosting conditions, the trial delivered scientific hosting capacity assessments for all county‑level grids in the region, providing authoritative data and decision‑making support for the rational deployment, orderly connection, and efficient absorption of distributed generation.

Moving forward, the institute plans to deepen research on new energy technologies, continuously optimize calculation processes, and refine regular working mechanisms.

It aims to continue empowering the high‑quality development of Ningxia's new energy industry with its professional expertise and fully support the establishment of a new power system in order to achieve peak carbon emissions and carbon neutrality.