Hi,
In 2026, i may change my electricity contract to something "dynamic", per 1/4h, based on market price.
So i tested the "EPEX Spot" integration to fetch the market prices and the "Epex Spot sensor" .
Seems to work great but the "Epex Spot" integration create a sensor with 2 days of 15 minutes intervals ( 192 records )
So i created my own sensor to recompute something like "End user invoiced price" ( including all stupid belgian rules and extra fees ๐ ๐ ).
HA shouted a warning " sensor too big, above 16374, no data will be saved".
So I analysed the output of "Epex", which is the "input sensor" of my template sensor ... and the result is a data attribute with something like 20160 characters.
Typical record in JSON is:
{"start_time":"2025-12-08T00:00:00+01:00","end_time":"2025-12-08T00:15:00+01:00","price_per_kwh":0.123456},
=> Integration is allowed to save/create big sensors
=> template sensor cannot save above 16384 characters/bytes ! ?
Is there something i can do on my side ?
Thx.