How to prevent a catastrophic power failure?


UPS Diagram - Here a diagram of a backup power source Wikipedia

If a power failure occurs a battery backing up might be a solution, but this battery needs to hold on for at least one hour. Wiki on UPS
- What can a typical UPS (uninterruptible power supply) provide us with?
- What systems should we keep running at all times?, I would say the water pumps and definitely the air pumps.