Huaneng commissions dual-flywheel frequency regulation system, claims China single-unit power record

China's Huaneng Group has connected a 5.5 MW dual-flywheel energy storage system to the grid at its Lanzhou coal-fired power plant to enhance frequency regulation. The system reportedly delivers sub-100-millisecond response times and over 99.5% accuracy, and the company claims a China single-unit power record.

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