The litre figure on a Korean refrigerator is effective internal volume, and the efficiency grade is scored relative to that volume. In public filings, a 299L Grade 1 unit drew 4.9 kWh less per month than a 253L Grade 2 unit.
The power and water figures on a washing machine label are per cycle. At five washes a week you multiply by 260. A 100Wh difference per cycle costs 5,580 won a year; 20 litres costs 6,396 won.
Cross 450kWh in July or August and the standing charge on a Korean household electricity bill jumps from 1,600 won to 7,300 won. Here is how to derive an air conditioner's hourly draw from its CSPF rating and price it against the three summer tiers.
A 6-place and a 12-place dishwasher differ by about 1,000 won a year in electricity. In Korea Consumer Agency testing, the real gap was drying method: 43,000 won for heated-air models against 28,000 won for fan and passive drying.
A dryer's "107 won per cycle" figure assumes a 5kg standard load in eco mode, priced at a rate that excludes the climate levy and taxes. On billed rates the same cycle starts at 126 won.
The inverter vs. non-inverter electricity bill gap comes from the compressor: one modulates output, the other just switches on and off. This post explains which structure loses under which usage pattern, covering spec-sheet reading and the basics of calculating your bill.