The grid price was published to evcc/tariff/gridprice, under evcc's own
retained-topic namespace — evcc manages evcc/# and wiped the price
(observed: retained value cleared with no broker/evcc restart), which
would hang evcc on its next restart until the HA automation republishes.
Move it to a neutral topic evcc only READS: grant the evcc Mosquitto user
'read energy/#', and point the grid tariff at energy/tariff/grid. The HA
automation is repointed in the homeassistant repo.
Note: applying this restarts the Mosquitto pod once (ACL change).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
k.rennerandClaude Opus 4.8