Observed arrival · 2026-10-09
StormWatts: Backup Power, With the Math Shown
A home-outage calculator and guide library for estimating power-station runtimes, comparing costs, and checking solar compatibility.
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- Households planning for power outages
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- Estimates assume 85% inverter efficiency; the eight power-station records were checked October 7, 2026.
Field notes
The visible guides break sizing into running watts, surge, watt-hours, and outage length, with worked scenarios and sourced figures. The homepage says each estimate assumes 85% inverter efficiency and identifies eight power-station records as checked October 7, 2026. Its printable checklist adds an essential-load worksheet and food, medical, and equipment-safety reminders; the site discloses AI-assisted research and no hands-on testing.
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Editorial observations of this landing page, not a rating.
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