This document describes methods for measuring the electricity consumption of various household appliances. It explains how to use power (W) and usage time to compute energy use (Wh) and provides example calculations for common devices such as microwaves, VCD/DVD players, and lighting fixtures.
Tables list standby power ranges for many appliances and give typical power ratings for devices like microwaves, air conditioners, and printers. The guide also includes basic electrical concepts such as voltage, current, and power, helping readers understand the formulas needed for accurate energy estimation. This manual is written in Japanese.
| Power Consumption | 2830 W |
|---|---|
| Microwave Energy Output | 1800 W |
| Microwave Frequency | 2430 Hz |
Multiply the appliance's power (in watts) by the usage time (in hours) to get energy consumption in watt‑hours.
Add the standby power multiplied by the standby hours to the active consumption to obtain total daily energy use.
The example microwave lists a power consumption of about 2830 W and an energy output of 1800 W.