Overview#
The Airman EBOSS 400-220 is the flagship of the EBOSS hybrid energy system lineup — combining a 400 kVA Airman generator with 220 kWh of Lithium Titanate Oxide (LTO) battery storage. The largest hybrid system Airman offers, it delivers 320 kW prime / 336 kW standby with massive fuel savings and emissions reduction for large construction sites, data centers, and temporary facility power. The 220 kWh battery bank can independently power significant loads for extended periods, with the Isuzu 6WG1X diesel engine cycling on only when battery state-of-charge requires it.
Features unlimited parallel capability for scaling beyond single-unit capacity. LTO battery chemistry for superior cycle life and fast charging. Built by Hokuetsu Industries in Japan with 110% fluid containment. A genuinely unique product — no other portable generator manufacturer offers integrated hybrid systems at this scale.
EBOSS Hybrid Technology at 400 kVA#
The EBOSS 400-220 represents the pinnacle of portable hybrid power generation. The Isuzu 6WG1X diesel engine is paired with a 220 kWh LTO battery bank — the largest in the EBOSS lineup and enough stored energy to run substantial loads independently for hours. At this scale, the fuel savings become economically significant: a conventional 400 kVA diesel generator burning fuel 24/7 on a multi-month deployment represents tens of thousands of dollars in fuel cost. The EBOSS 400-220's intelligent power management eliminates that waste by running the diesel engine only when needed and always at its most efficient operating point. The unlimited paralleling capability means that even 320 kW is not a ceiling — multiple units can be linked for campus-scale power requirements while maintaining the same hybrid efficiency. For data center temporary power, the 220 kWh battery bank provides instantaneous load response during diesel engine startup cycles, delivering a level of power quality that conventional diesel-only generators cannot match.
Our Service Experience#
The EBOSS 400-220 is a specialized asset in our fleet, deployed on the largest projects where the fuel savings and environmental compliance advantages justify its position at the top of the EBOSS lineup. We have placed it on major infrastructure projects and data center commissioning work where the combination of 320 kW prime capacity, silent battery-only operation during noise-restricted hours, and reduced emissions made it the clear choice over conventional diesel generation.
At this power class, fuel logistics are a significant operational consideration — and the EBOSS 400-220 dramatically simplifies them. The reduced diesel engine run hours mean fewer fuel deliveries, less on-site fuel storage, and a smaller spill risk profile. The Isuzu 6WG1X diesel components follow the standard 250-hour oil change schedule, and the LTO battery system requires only periodic visual inspection. For fleet operators evaluating the EBOSS 400-220, the total cost of ownership calculation should include not just fuel savings but also reduced fuel delivery logistics, lower maintenance frequency due to fewer engine hours, and the ability to operate on noise-sensitive sites where a conventional 400 kVA diesel generator would be prohibited.
