TRANSIENT-CAPABLE HYDROGEN-HYBRID FOR OFF-ROAD (THOR) THE OBJECTIVE OF THE PROJECT IS TO RESEARCH, DEVELOP, AND DEMONSTRATE A TRANSIENT-CAPABLE HYDROGEN (ENGINE-BASED) HYBRID POWER SYSTEM FOR OFF-ROAD APPLICATIONS, DEMONSTRATE COMPLIANCE WITH TIER 5 CRITERIA EMISSIONS LEVELS, EQUIVALENT (WITHIN 5% DEVIATION) TRANSIENT RESPONSE WHEN COMPARED TO THE BASELINE TIER 4F HEAVY DUTY DIESEL ENGINE, AND REDUCES FUEL CONSUMPTION BY = 9% WHEN COMPARED TO EQUIVALENT HYDROGEN ENGINE ALONE.