Replacement of Indoor 750kW Emergency Generator

To restore and modernize emergency power infrastructure at NYU Langone Health, Batska Consulting oversaw the replacement of a failed 750kW Detroit Diesel generator located on the hospital’s 6th floor with a new 750kW CAT C18 unit. The project encompassed critical upgrades to electrical, mechanical, and life safety systems while maintaining uninterrupted emergency power to clinical operations. Batska led a carefully sequenced implementation plan, including the installation of a new generator output breaker integrated with the hospital’s building management system (BMS), the addition of a compliant pre-action sprinkler system where none previously existed, and the replacement of a large, double-height exhaust louver with a modular, multi-section system to support future generator access and replacement. Other infrastructure improvements included energy-efficient LED lighting and the construction of a sound-attenuating vestibule to minimize operational noise and enhance comfort on the occupied floor. One of the project’s most complex phases involved the rigging and removal of the 19,000-pound existing generator and the delivery of the new 10,000-pound CAT unit through a 6th-floor louver opening. This work was staged over two weekends and coordinated with structural reinforcement activities, including a new concrete equipment pad and a resilient flooring liner. Due to shared fuel oil, flue stack, and exhaust systems with the 7th-floor generator, both units were taken offline during the upgrade. Batska ensured continuity of emergency power by deploying dual temporary 750kW roll-up generators stationed at street level throughout the construction period. The successful completion of this technically demanding project improved the hospital’s emergency power resilience and safety compliance, while minimizing impacts on patient care in a highly sensitive environment.