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

KEEP THE READING AND ITS CONTEXT

Record what
you measured.

Use accumulated kWh from a suitable monitor. Keep complete-day or completed-cycle observations with their settings, then price or project them separately.

Your observation

For complete-day samples, finish at the same local clock time after the entered number of days. Dates and times are kept as entered; a daylight-saving change can make a calendar day shorter or longer.

Optional price and annual scenario

A price models cost at one constant rate. Your remembered tariff, if any, supplies the starting price; loading a saved observation restores its recorded inputs. A routine projects the sample average; neither changes the measured readings. Keep time-of-use charges and other costs separate. Currency changes do not convert prices.

Saved on this device

Keep up to 100 observations in this browser profile. Export records you want to retain; clearing browser data removes them. Records are not synced or uploaded by this application.

No saved observations on this device.