Why doesn't the total in Time View match the sum of my Manual Export?
The same meter data shown two ways. Here's how to pick the right view for an accurate total.
Time View and Manual Export show the same meter data from the same source. The differences you see come from the resolution you're looking at, not from the view itself - different resolutions apply rounding differently.
What's happening:
- At the 1 hour resolution, the total is calculated from the raw values and rounding is applied only once - to the final number. This makes the 1 hour total the most accurate.
- Time View displays its data at the 1 hour resolution, so the Time View total uses this accurate calculation. Manual Export at the 1 hour resolution returns the same numbers - the totals match exactly.
- Manual Export also offers resolutions finer than 1 hour (for example, 5 minutes or 1 minute), and the available choices depend on the date range you pick. At those finer resolutions, each value is shown rounded for display. Summing a long range of those rounded values lets the rounding differences accumulate, so the total can drift slightly from the 1 hour total - the finer the resolution, the larger the drift.
Why does this happen?
A raw 1-minute reading in the database might be a long decimal like 0.0065 kWh, but in the exported CSV it's shown as 0.01 kWh. The rounding is small per value, but over hundreds or thousands of minutes those small rounding-ups add up to a visible difference in the total.
Which view to use:
- For an accurate total or trend, use Time View or Manual Export at the 1 hour resolution - both rely on the same accurate hourly calculation.
- Use Manual Export at a finer resolution when you need to inspect individual readings at high granularity - for example, to spot a specific event. For accurate totals over a long range, read the value from Time View or from a 1 hour export instead of summing the finer-resolution values.


The screenshots above show the same device (Machinery) over the same date range (Last 7 days) in both views. Hover on Time View at any hour - for example, Thu, May 21 at 23:00 - and the value matches the row for 21/05/2026 23:00 in the exported CSV exactly. At the 1 hour resolution, every hourly value is identical between the two views.