Not in the sense it is not there at all. It is just that to reconcile the data displayed you have to calculate two (at least) balancing terms that are missing, they are the battery losses and the energy exported from the battery to the grid.
It would be really good if these terms could be calculated automatically, how about it @Guy Stewart (Victron Community Manager)?
This is the System Overview display option from the dashboard for my sytstem for a whole year (23-01-01 0000h to 24-01-01 0000h)
Next we see the Consumption figures
So (1558 - 982 = 576) must have gone from the Grid into the Battery, this is confirmed below
Next come the Solar figures
So in total (576 + 1939 = 2515) must have gone into the Battery.
Also the discrepancy in the "To Grid" figures mean that (2724 - 2570 = 154) must have gone from the Battery to the Grid, we need to include that to get the total energy out of the battery (154 + 1593 = 1747).
Lastly we can get the Grid figures
which just confirm some of the data already displayed.
So we can at last derive
(i) the round trip efficiency of the battery which is (Total energy out/Total energy in) = 1747/2515 = 69.5%
And (ii) the final energy balance:
Total solar generation (7144) is split between
- Loads (5210),
- Battery round trip losses (768) and
- Net exports (2724 exports - 1558 imports = 1166).
(For a much shorter period of time, we would also have to take into account the net change in the state of charge of the battery but over a whole year this is totally insignificant.)
