Sizu Home › Calculators › Tariff Comparison
Plans unit rate + daily standing charge
Enter your usage and each plan’s rates, then press Compare.
From the book — Chapter 4. A fair tariff comparison fixes the usage and adds both parts of each plan: unit rate × units, plus standing charge × days. The plan with the lowest unit rate isn’t automatically cheapest — a high daily standing charge can swallow the difference, especially if you don’t use much.
Use the same units the plans quote (kWh, m³…). Enter the standing charge in the same currency unit as the rate. Everything stays in your browser.