Whether you're facing hurricane season in Florida, winter grid failures in Texas, or rolling blackouts in California, having reliable backup power is no longer optional for American homeowners—it's a necessity.
PowerPrep was built with a simple mission: To demystify generator sizing and help you find the exact power station or inverter you need, without forcing you through confusing government PDFs or scammy lead-generation forms.
Our calculator uses standardized USA appliance ratings (120V/240V) to accurately estimate your Running Watts and Starting Watts, ensuring you don't overspend on a massive generator you don't need, or underspend on a power bank that can't start your refrigerator.
We believe in 100% transparency. This tool is completely free to use. We make money through display advertising (Google AdSense) and affiliate commissions (Amazon Associates). When you click a link on our site and buy a generator on Amazon, we earn a small percentage at no additional cost to you.