Sanity Check Please

7 comments started 2026-04-20 last 2026-04-29
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#1 Maxwell

I've been looking at my daily totals for import/export and i am using the "Import_Energy_Today_kWh" register from givtcp. And when I compare that total with what is in the portal or app it looks to me that this register is showing the same value as "grid to home" in the portal/app. Have i missed a register or is this a known feature or is that do some sums with the existing fields to work that out ? The "export Energy Today kWh" figure is more accurate. Somedays it is spot on with portal/app and others so far has been

W
#2 wrighar

These are the 6 I track (totals, but they also have today versions):

G
#3 geoffreycoan

As above, its better to use the import/export energy total figures, the today figures don't always reset correctly and can have some strange behaviour.

Personally I never look at the grid to home/battery etc, I have all these disabled in HA, they don't really add much value and I just use the raw import, export, solar, etc

W
#4 wrighar

Yep, I just track totals:
My annual saving this year will be down as I was 3 months without battery, and because of that lost my ability to switch to Intelligent Octopus Flux :-(



#5 Maxwell

wrighar I used the total export and total import figures, bottom chart and i used this grafana query to generate the top chart (the ge_non_raw_numbers is the measurement name i created in telegraf for the non raw fields in givtcp)

SELECT difference(max("Export_Energy_kWh")) FROM "ge_non_raw_numbers" WHERE $timeFilterGROUP BY time(1d)

SELECT difference(max("Import_Energy_kWh")) *-1 FROM "ge_non_raw_numbers" WHERE $timeFilter GROUP BY time(1d)

And these calculated values match exactly to the import and export today totals which of course we know in themselves are not completely correct. If you look at the 27th the GE portal says 0.7kWh imported, of which 0.2 is to the home. And you can see that on both the grafana chart and excel graph that the value here matches the grid to home, not the total (taken from the import today total field). I know this is a limited data set. But from what i can see the import today field matches against what the portal shows as daily grid to home total and doesn't include import to battery. And i'd say that the same can be said of the total import energy field.

The export totals are not exact but perhaps more consistent (subject to my small data sample). But, i will take the Octopus values here 🙂

J
#6 Jellybaby

oooooooooooo those are nice graphs at the top and on the right

#7 Maxwell

Jellybaby Thanks, bet you say that to all the boys/girls 😉