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Grid-Forming energy storage becomes the ‘power pacemaker’ to solve the problem of black start in power grids

Recently, NR Electric successfully completed black start tests for Grid-Forming energy storage equipment in Jingmen, Hubei Province, and Zhaoyuan, Shandong Province. NR-ISGrid's ideal synchronous power source control technology provides an optimal solution for renewable energy dominated electric power systems.

On 13 June 2025, the Gaoqiao and Qingnian 110kV substations in Jingmen, Hubei Province, and the Jindi Photovoltaic Power Station were in a simulated blackout state, resulting in a power outage in seven surrounding transformer districts. Upon receiving the black start command, the Xingang 50MW/100MWh energy storage power station activated instantly, restoring power to the entire area within 30 seconds. Immediately thereafter, the Jindi Photovoltaic Power Station resumed operations synchronously, supplying electricity to the regional grid. Subsequently, power supply to residents within a radius of over ten kilometres and three pump stations in the surrounding areas was fully restored. After all tests were completed, the regional grid seamlessly integrated into the ‘main grid’ and returned to normal operations. This trial marks the first successful implementation of a Grid-Forming energy storage power station initiating the regional grid in Central China.

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Panoramic view of Hubei Xingang Energy Storage Power Station

On 20 June, the Zhaoyuan Energy Storage Power Station in Shandong completed a 100MW Grid-Forming energy storage system black start test with a 220kV line and a photovoltaic power station. With the issuance of a one-button black start command, more than 100 Grid-Forming energy storage converters across the station started up simultaneously, achieving a black start for the 200MVA photovoltaic main transformer on the opposite side of the energy storage station with in one minute.

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Panoramic view of the Zhaoyuan Energy Storage Power Station in Shandong Province

The two trials covered grid-side and renewable energy base application scenarios. Through advanced technologies such as ‘one-click synchronous black start’ and ‘minute-level rapid start-up,’ fully automatic regional grid restoration was achieved.

NR Electric has been deeply involved in the energy and power sector for over 30 years. Through grid-forming technology, it has innovatively transformed energy storage systems into the ‘pacemaker and multi-dimensional stabiliser of the power system,’ ensuring safe and stable operation across all scenarios of power generation, transmission, and consumption.

To date, NR Electric has successfully implemented over 110 grid-forming projects across global markets including China, the Middle East, Europe, and South America, with a cumulative installed capacity exceeding 10 gigawatts, consistently leading the technological evolution and industrial upgrading of global renewable energy dominated electric power systems.


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