Observed arrival · 2026-10-19
Crisis Calculator’s four preparedness tools
A free set of calculators for sizing backup power, simulating a blackout, estimating solar yield, and planning emergency supplies.
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$Paid
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Households planning for outages and backup power
- Worth noticing
- The solar tool uses PVGIS irradiation data for 26 cities; the blackout simulator asks 12 questions and produces a resilience score and failure timeline.
Field notes
The watt tool asks users to choose appliances and set operating hours, then lists watt-hours alongside simultaneous load and start-up surge. The blackout simulator describes a 12-question assessment with a resilience score and a timeline of what fails. The supplies planner can produce a printable list for 72 hours to 10 days and takes household size and allergies into account.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
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