The one‑person company hasn’t made money yet, but the business sold to the one‑person company turned a profit first

Overview

China’s largest single‑unit intelligent string battery project has entered stable operation: the 220kV Bohans Xingguang Storage Station (博汉星光储能电站) — a 400 MW / 2,400 MWh installation — was officially unveiled at the 2026 Energy Storage High‑Quality Development Summit, it has been reported. The project was built by Haibosi Chuang (海博思创) in partnership with Huawei Digital Energy (华为数字能源), and was grid‑connected at the end of December 2025. The plant reuses an old mine pit for ecological restoration. Who delivered such scale so quickly? A small builder working with a major domestic tech champion.

It has been reported that Haibosi Chuang is registered as a one‑person company and has not yet shown profits on its books; yet the business transaction around the Bohans project reportedly yielded returns before the smaller firm itself posted profit. Treat that as an unverified detail for now. The headline fact remains: the facility is designed to tackle curtailment in Baotou (包头), Inner Mongolia, a region with more than 3,000 effective renewable hours annually and where renewables now exceed 50% of installed capacity.

Technical and operational highlights

The station uses Huawei’s intelligent string‑type PCS and Haibosi Chuang’s single‑cabin 7 MWh modules, with 1,944 string inverters and a round‑trip efficiency of 97.02%. Single‑day discharge has exceeded 2 million kWh since commissioning; equipment online rate is above 99.5% and point‑of‑interconnection efficiency over 90%. Modular design isolates single‑unit faults so one failure won’t halt the whole park, and the fastest fault remediation is reported at 30 minutes. Grid‑connection commissioning reportedly completed in three days and full‑capacity charge‑discharge testing passed on the first try.

Geopolitical and grid context

This project highlights China’s push to solve renewable curtailment and support heavy industry with large‑scale storage. The Bohans station is expected to relieve roughly 1 billion kWh per year of transmission bottlenecks in western Inner Mongolia (蒙西), providing peak‑shaving, valley‑filling and ancillary services. There is also a geopolitical subtext: Huawei, which faces Western export controls and sanctions in several markets, has doubled down on domestic energy‑digitalisation products such as intelligent string PCS. The result is faster deployment of large, locally supplied systems that help secure China’s power transition amid strained global supply chains.