Quietly Powerful: Hoymiles HoyUltra 2 C&I ESS Achieves Breakthrough ≤60 dB(A) in Certified Noise Testing

2026-02-12 - 10:38

HANGZHOU, China, Feb. 12, 2026 /PRNewswire/ — As energy storage systems (ESS) are increasingly deployed in commercial centers and residential neighborhoods, noise levels have become a critical factor for project approval. Hoymiles’ HoyUltra 2, the liquid-cooling C&I battery system, has achieved ≤60 dB noise level certification in a recent noise evaluation test conducted according to the