If we ask for a number, we tell you exactly what it means and how it is used.
Global Cry tools
Turn guidance into a plan.
Practical utilities for working out what you need, rather than another page of articles to scroll through.
01
Preparedness planner
Build Your Kit
Build a tailored home, car, travel or backup-internet plan using people, duration, device types, power metrics and scenario modules.
- Core / Useful / If needed priorities
- Powered-device profile
- Two-page printable emergency pack
02
Power calculator
Power Station Runtime Calculator
Plan backup power for a whole household using people, device types, usage hours, charging cycles, efficiency, reserve and output requirements.
- Household + device load builder
- Wh / kWh capacity estimate
- Continuous output + surge checks
- Energy breakdown + priority loads
How these tools work
Useful numbers, without fake precision.
Device counts never become made-up wattages. Real power estimates require actual watts.
The planner produces compact printed sheets designed to remain useful when the site is unavailable.