I am keeping track with a spreadsheet about daily production & usage (among other stuff: like comparing microinverters with stringinverter )
For production it is absolutely spot on the same in my spreadsheet and what sense reports.
For usage it is off since this month.
My spreadsheet is filled out with the values I get from sense on daily basis.
and my spreadsheet:
There seems to be a difference of 51.6 kWh
I added all the daily usage readings (i hovered over each day in the monthly overview) in a calculator and that ended up to be the same value as my spreadsheet.
Which makes me believe that the monthly value of the web interface of Sense is not calculated right.
When I compare last month of my spreadsheet & sense monthly overview, everything matches.
This month I added my hybrid inverter , meaning that my usage actually goes negative part of the day.
I asked for feedback about that in a different thread. Even sent an email to support@ but no response yet.
Could it be that is where the 51kWh “went” ? it just doesn’t show up on the daily values anywhere but somehow the total usage does include the fact it went negative?