American conglomerate Honeywell has introduced a new modular all-in-one battery energy storage system (BESS) for the commercial and industrial (C&I) segments. Named the Honeywell Ionic, the new system has a nominal storage capacity of 255 kWh. Up to 20 units can be connected in parallel, for a total capacity of 5.1 MWh.
Honeywell Ionic integrates flexible battery storage with the company’s advanced control and energy management system. It is designed to reduce energy costs, absorb demand fluctuations to support grid stability, and provide backup power.
The control software incorporates ISA Secure 2 cybersecurity, protecting users and mitigating risks from potential network threats.
“Right now, the product is intended for the Americas market since it is UL certified only, but IEC certification is upcoming for the European region as soon as Q2 2026. UL deliveries are expected to begin as soon as Q1 2026,” a company representative told ESS News.
The system measures 1,150 mm x 2,450 mm x 1,610 mm, weighs 3,000 kg, and carries an IP55 protection rating. It operates in ambient temperatures ranging from -30°C to 50°C and at altitudes up to 2,000 m.
The BESS uses 314 Ah LFP cells, installed in a series of 256 (256S1P configuration). Its nominal power stands at 125 kW, while its voltage is at 480 V and its frequency is at 50 Hz / 60 Hz. Its round-trip efficiency is more than 90%, and it uses liquid cooling.
It has a cycle life of more than 8000 charge-discrage cycles and comes with a three-year standard warranty.
“Today organizations of all sizes are under increasing pressure to use energy more effectively while simultaneously ensuring reliability and cost-effectiveness,” said Jim Masso, President of Honeywell Process Solutions. “Honeywell Ionic enables businesses to navigate these challenges while meeting their energy goals by delivering a complete energy automation system built on the latest lithium-ion technology.”
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