Technology

A >99% efficiency figure or an 8.5ms switching time looks good on a spec sheet. Understanding why Soaring reaches those numbers — and why they cannot simply be copied — means understanding decisions we made years before the market caught up.

Three-Level Topology — Maximum Conversion Efficiency Above 99%

In 2016 Soaring introduced a three-level converter topology to China’s energy storage industry. Maximum conversion efficiency broke through 99% — a number that sounds marginal until you calculate what half a percent means at 100MW across a twenty-year project life. That topology is still our core architecture: continuously refined, never abandoned. It is why Soaring PCS run cooler, need less cooling infrastructure, and return more revenue per MWh of installed battery.

99.2% — measured maximum conversion efficiency.

Charge/Discharge Switching in 8.5 Milliseconds

The Chinese national grid standard requires a charge-to-discharge transition within 100ms. Most of the industry lands between 20 and 100ms. Soaring does it in 8.5ms.

This is not a minor spec difference. It is the difference between qualifying for primary frequency regulation markets and not qualifying. Across 80+ projects at 100MW or more, this has been proven at real scale — not in a test lab.

Benchmark	Switching time
Soaring Electric	8.5ms (<10ms)
Chinese national standard	100ms
Typical industry peers	20–100ms

VSG-Based Grid-Forming — China’s First-Batch Certification

Most energy storage inverters are grid-following: they detect the grid’s voltage and frequency and synchronise to them. That works while the grid is stable. As renewable penetration increases the grid becomes less stable — and grid-following inverters can make the problem worse.

Grid-forming (GFM) inverters actively establish voltage and frequency references, provide inertia support, and damp oscillations — functioning more like a synchronous generator than a passive converter. Soaring’s GFM control, built on Virtual Synchronous Generator (VSG) principles, delivers inertia and damping characteristics equal to or better than conventional synchronous machines.

In 2023 Soaring was in the first batch of companies in China to receive Grid-Forming PCS certification from the China Electric Power Research Institute (CPRI). The Xinhua Wushi project — China’s first commercial GWh-scale GFM energy storage project — runs on Soaring technology.

Transformerless Multi-Unit Parallel — Pioneered in China, Since 2010

In 2010 Soaring pioneered a single-stage converter architecture that lets multiple PCS units connect directly to the grid bus in parallel, without individual step-up transformers. The result: lower equipment cost, smaller footprint, higher system efficiency and simpler maintenance — verified in China’s most demanding benchmark projects, including the National Wind-Solar-Storage Demonstration Project. Soaring holds the earliest engineering verification of six-unit transformerless direct paralleling.

Engineering-Verified System Functions

• Black start
• Multi-unit paralleling
• Virtual synchronous machine (VSG)

The products this technology goes into → · Certifications & test reports →