# EnergyBillAnswers Sources and Reference Standards

EnergyBillAnswers uses authoritative general references together with appliance labels, utility bills, energy-monitor readings, manufacturer manuals, and current product specifications.

## Energy calculations and household efficiency

- U.S. Department of Energy — Estimating Appliance and Home Electronic Energy Use  
  https://www.energy.gov/energysaver/estimating-appliance-and-home-electronic-energy-use
- U.S. Department of Energy — Energy Saver  
  https://www.energy.gov/energysaver/energy-saver
- ENERGY STAR — Products and home-energy guidance  
  https://www.energystar.gov/products

## Emergency power and outage preparation

- Ready.gov — Power Outages  
  https://www.ready.gov/power-outages
- U.S. Consumer Product Safety Commission — Portable Generator Safety  
  https://www.cpsc.gov/Safety-Education/Safety-Guides/Carbon-Monoxide/Generators-and-Engine-Driven-Tools
- Centers for Disease Control and Prevention — Carbon Monoxide and Generator Safety  
  https://www.cdc.gov/carbon-monoxide/about/generator-safety-fact-sheet.html

## Food and refrigeration safety

- FoodSafety.gov — Food Safety During Power Outages  
  https://www.foodsafety.gov/food-safety-charts/food-safety-during-power-outage

## Source-use policy

Technical values for a specific appliance, generator, inverter, battery, or solar input should come from that product's current manufacturer documentation. Utility rates and billing structures should come from the reader's current tariff and bill. General averages are starting points, not substitutes for product-specific measurements.