watt&home
US · UK · Europe
Market & tariff

Choose your label market and enter the electricity price from your bill.

For example, 20 cents/kWh is 0.20 USD/kWh. Use your own bill rate.

Read United States guidance

Changing market selects a currency and clears the draft price for you to enter. Currency changes do not convert prices. Your remembered market sets the label reader's starting market; shared examples keep their own inputs. Separate scenario rates stay as entered.

Clearing removes saved market, tariff, scenarios and measurement observations. Export journal records you want to keep first. Analytics choices are managed separately in the footer.

How device storage works

YOUR APPLIANCE. YOUR TARIFF.

What changes your appliance cost?

Compare three sets of assumptions for electricity use, tariffs and replacement prices, and see how annual cost or simple replacement payback changes.

WHAT CHANGES THE RESULT?

Try three sets of assumptions.

Use a compatible annual baseline. The energy percentage is a hypothetical change to that baseline. These sample sets do not predict tariffs, actual use or purchase prices.

Lower inputs
Base inputs
Higher inputs
Annual electricity cost under your assumptions
Assumption setLower inputsBase inputsHigher inputs
Annual baseline / current energy480 kWh600 kWh720 kWh
Annual electricity cost$105.60$168.00$244.80

Three chosen inputs, not a statistical range. A lower energy percentage or tariff can reduce annual costs; change one input at a time to see its effect.

Understand the assumptions

Scenario energy = baseline annual kWh × percentage ÷ 100. Annual electricity cost = scenario energy × scenario tariff. In replacement mode, both current and replacement energy use the same percentage. Annual savings = (current − replacement) kWh × tariff. Simple payback = net upfront price ÷ positive annual electricity savings.

Net savings over the chosen period = annual electricity savings × years − net upfront price. Include installation and disposal less confirmed credits in that price. No positive savings means no electricity payback. A zero upfront price is shown separately.

A changed annual label value is a hypothetical scenario, not a recalculation of the product’s official test result. Repairs, failures, financing, environmental impacts and future tariff changes are excluded. The period is not an appliance-life forecast.