Extended backup power.
WHAT THEY DO
Supply the facility when mains power is unavailable, for as long as fuel lasts.
HOW THEY WORK
An engine drives a generator, started automatically on supply failure.
HOW QUICKLY
Within seconds, with batteries covering the interval.
WHAT DETERMINES RUNTIME
Fuel storage, and resupply.
WHY THAT MATTERS HERE
Extended outages require sustained generator operation, and fuel logistics become the constraint.
WHAT TO ASK
How many hours of fuel are held on site What the resupply arrangement is Whether it is contractual and tested
THAT LAST QUESTION
A resupply arrangement never exercised may fail during widespread demand.
WHAT MAINTENANCE REQUIRES
Regular running under load Fuel condition management Starting system checks
WHY RUNNING UNDER LOAD
A generator that starts but cannot carry the load has not been proven.
WHAT TO ASK
How often they are tested under full load.
WHAT REDUNDANCY LOOKS LIKE
More generators than needed, so one can fail or be serviced.
WHAT TO VERIFY
That transfer to generator has actually been demonstrated.
