In fairness there needs to be a pretty serious
investigation. Pretty poor really - let's hope for BRS
there is a credible explanation (will be expensive whatever).
I work in an office with 1000 people in, not a
multi million users, complex, safety critical
operation and we have multiple back up generators
including diesel ones so the lights should never go out. They need
a lot of maintaining and very regular load testing.....simulating
peak load use......