VIJERON / ENERGY LAB
Editorial method and sources
What the tools calculate, where the concepts come from, and what the results cannot establish.
Rumus / Formula
Estimated energy = watts × hours per day × days × units ÷ 1,000. This gives kWh when power is assumed steady. Two options are compared as B − A on the same schedule and quantity.
Tarif dan tagihan / Rate and bill
Estimated energy charge = kWh × the rate you enter. We do not insert an automatic national rate. Taxes, fixed charges, tiers, subsidies, and provider rules are not modeled.
Batas / Limits
Rated power may differ from real average draw. Cooling, heating, and standby devices can vary their power. Measure actual kWh over a representative period for important decisions. The site's examples explain arithmetic; they are not product test results.
Proses editorial / Editorial process
These guides and examples were written for Vijeron on 9 October 2026. The primary sources below check definitions and methodological limits. We do not republish their articles, images, rate tables, or test results.
Sources you can inspect
- U.S. Energy Information Administration — Measuring electricity
- NIST — Conversion factors for energy units
- U.S. Department of Energy — Measuring standby power
- U.S. Department of Energy — Consumer guide to efficient lighting
- Australian Government — Energy ratings and running costs
- U.S. Department of Energy — Why energy efficiency matters