Introduction

When viewing the data in the graphs and tables, there may be differences in the totals values.
This is caused by the fact that one value is a single value at the end of the day and the other value is added at 5 minute intervals during the day.

There are 3 different ways how the total value can be determined.

Cases

1. The first case and the most accurate value is the value of the hardware (inverter, meter...) determined for the day.
   This value is queried once by the SolarLog from the connected devices and stored as the total value for the day.
   
   

2. The second case is the determination of the value over a 5 minute interval in which the SolarLog reads the current hardware status every 5 minutes.
   This value is used for the minute view if the hardware has a Wh exact recording. This may lead to smaller time shifts (measurement speed) and rounding errors.
   
   

3. The third case and the worst value is the value summed over 5 minute intervals with non Wh accurate recording.
   In this case other values are used, for Wh the W value is taken and calculated with the interval to arrive at Wh.
   This contains a higher potential for rounding errors / time shifts and data that is already distorted overall due to the measurement inaccuracy (since Wh is not recorded precisely).

In principle, only the value from case 1 is a reliable and billing-relevant value (calibrated in the hardware).
The other cases are only used for viewing in the daily graphs (minute intervals) to show a history over the day.
To display and calculate values such as own consumption and feed-in, this 5 minute interval value is required.
This is the only way to determine whether the energy has been used once for own consumption or whether it has been fed into the grid or drawn from the grid (uncovered consumption).

Examples

App

Data between minutes total and daily value differing (production):

Total minutes

Open

Daily value

Open

Data where the values are equal (production):