Hospital campus standby generation plant
A Level 1 standby plant for a regional hospital: two paralleled 1 MW gensets, closed-transition transfer and life-safety branch distribution to OR, ICU and imaging — certified to NFPA 110.
What we were engaged to build.
Actual ratings, devices and standards.
The service voltages, equipment ratings, protective functions and codes this project was built and tested against.
The specific electrical solutions we used.
How each design decision solved a real constraint on this project — from redundancy and coordination to protection and commissioning.
Paralleled 1 MW gensets with load-demand
The paralleling gear runs one genset at light load and starts the second only when demand rises, so the plant avoids wet-stacking and the hospital never runs a 2 MW plant at 20% load.
Closed-transition, no-break transfer
The ATS synchronizes to utility before transferring back, so the switch is a no-break event — critical for imaging and anesthesia equipment that can’t ride a 10-second outage.
NFPA 110 Level 1 compliance program
Weekly inspections, monthly load-bank runs and annual full-load tests are documented to the NFPA 110 record, keeping the Level 1 classification that accreditors audit.
CEC 517 critical branch segregation
The critical and life-safety branches are on their own transfer switches and panels, so a fault on a non-essential branch can never take down the OR or ICU.
From the build.
