How Much Fuel Does a Generator Use?
Learn how generator fuel consumption changes with load, calculate runtime from a manual’s tank specification, and avoid common gasoline, diesel and propane mistakes.
Power & Battery Guides
How Many Watts Does a CPAP Use?
Learn how many watts a CPAP uses with or without a humidifier, calculate eight-hour energy use, and size a realistic overnight battery backup.
How to Size a Solar Battery Bank: Step-by-Step Guide
Calculate solar battery-bank capacity from daily kWh, backup days, efficiency, depth of discharge, temperature and reserve, with a complete worked example.
How Many Watts Does a Refrigerator Use? Complete Guide
Learn the difference between refrigerator running watts, compressor startup surge and daily kWh, with realistic ranges and a battery-backup example.
Mini Fridge Wattage: Running Watts and Startup Surge
Typical mini-fridge running watts, startup surge, daily energy use and a worked power-station runtime example.