Using smart-meter data safely

Use readings, half-hourly profiles and in-home display data without confusing cost estimates with bills.

Smart data is most useful when tied to a specific question: base load, peak use, time-of-use shift or missing readings.

This site does not connect to meters or request account credentials.

Readings

Compare supplier readings with the meter and note communication gaps.

Profiles

Weight time-of-use prices by kWh in each interval.

Display

An in-home display estimate can use tariff settings that need updating.

Privacy

Remove MPAN/MPRN, address, name and account numbers before sharing data.

Frequently asked questions

Can this website read my smart meter?

No. All inputs are entered manually and calculated locally.

How current are the figures?

Each page shows its review date. Your live tariff and the latest official publication always take priority.

Sources and review date

Content reviewed on: 2026-08-03.