Wattmargin: Outage Planner

About Wattmargin: Outage Planner

Wattmargin is a private backup-power planning workbench for deciding what you intend to run before an outage begins.

Build a load list from equipment labels and manuals, choose must-run and rotating appliances, enter duty cycles, and compare running watts, worst startup demand, and estimated daily energy against a generator, battery power station, or inverter. Runtime estimates help reveal tradeoffs before the household is operating under pressure.

KEY FEATURES
- Generator, battery station, and inverter profiles
- Continuous and surge-watt margins
- Daily watt-hour planning with duty cycles
- Conservative single-load startup analysis
- Battery and generator runtime estimates
- Must-run, rotating, and optional priorities
- Circuit directory and readiness checklist
- Local PDF outage plan
- Offline field-reference guide
- No account, ads, tracking, analytics, subscription, or network requirement

Wattmargin is an estimation and planning tool. Actual demand and runtime vary with equipment, temperature, age, fuel, wiring, and operating conditions. Never connect a generator directly to building wiring or a receptacle. Follow manufacturer instructions and use a licensed electrician for transfer equipment or fixed wiring.