evcc

v0.308.1 Feature

This release adds 3 notable features for engineering teams evaluating rollout.

Published 1mo Home Automation

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✓ No known CVEs patched

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✓ No known CVEs patched in this version

Topics

battery charger eebus emobility go home-automation

+8 more

modbus mqtt ocpp pv semp solar sunspec wallbox

Summary

AI summary

Updates Other Changes ☀️, New Features 💫, and Bug Fixes 🐞 across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Feature
Feature	Low	Adds returnEnergy support for MBMD. Adds returnEnergy support for MBMD. Source: llm_adapter@2026-06-05 Confidence: high	—
Feature	Low	Adds returnEnergy support for SunSpec. Adds returnEnergy support for SunSpec. Source: llm_adapter@2026-06-05 Confidence: high	—
Feature	Low	Uses ESPHome entity-name sensor URLs for Meter (SlimmeLezer V2). Uses ESPHome entity-name sensor URLs for Meter (SlimmeLezer V2). Source: llm_adapter@2026-06-05 Confidence: high	—
Bugfix
Bugfix	Medium	Fixes dimmed issue in Huawei integration. Fixes dimmed issue in Huawei integration. Source: llm_adapter@2026-06-05 Confidence: high	—
Bugfix	Medium	Prevents double custom element registration. Prevents double custom element registration. Source: llm_adapter@2026-06-05 Confidence: high	—
Bugfix	Medium	Drops orphan grid charge headline on fresh Battery UI installs. Drops orphan grid charge headline on fresh Battery UI installs. Source: llm_adapter@2026-06-05 Confidence: high	—
Bugfix	Medium	Improves truncation handling in Device Card. Improves truncation handling in Device Card. Source: llm_adapter@2026-06-05 Confidence: high	—
Bugfix	Medium	Guards DriveSomethingGreater against empty VIN or value. Guards DriveSomethingGreater against empty VIN or value. Source: llm_adapter@2026-06-05 Confidence: high	—
Bugfix	Medium	Prevents data loss in DriveSomethingGreater on error. Prevents data loss in DriveSomethingGreater on error. Source: llm_adapter@2026-06-05 Confidence: high	—
Refactor	Low	Logs unzipped data in DriveSomethingGreater. Logs unzipped data in DriveSomethingGreater. Source: llm_adapter@2026-06-05 Confidence: high	—

Full changelog

Changelog

New Features 💫

aaed8c24a37230f3e41cd168adb815e895573d3a MBMD: add returnEnergy support (#30514)
233cd72a9589a07fa9c07ec93a0f18c99a1cde8a SunSpec: add returnEnergy support (#30515)

Other Changes ☀️

29e5599c993b9b1453554c45cdc2e21bfd9634e0 Battery UI: drop orphan grid charge headline on fresh installs (#30530)
501789c7bfb7d91a440ac395d1134f2852f315e0 Device Card: improve truncation (#30533)
380416e3e1ad456d4ad020b9b401742346c903d2 DriveSomethingGreater: guard against empty vin or value (#30516)
fe07fa78381ae995b464dc47357a42dfd6301be0 DriveSomethingGreater: guard against losing data on error
da8f13254ee3e774f1ca5ea28a79a9a9df8012ec DriveSomethingGreater: log unzipped data
81bede7fe88bad06c10cf7ddcfddbd8c4cd4b605 Meter (SlimmeLezer V2): use ESPHome entity-name sensor URLs (#30466)

Bug Fixes 🐞

db5ab3337d3759d633fe4c5e04077b8c15589ea1 Huawei: fix dimmed (#30507)
111247947ba207ad22fbc99d517cbda93e032432 fix: double custom element registration (#30542)

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Earlier breaking changes

v0.312.1 Home Assistant: add plugin source, support temp for heating switch devices
v0.312.0 make curtail (model 123/704) optional (BC)
v0.312.0 remove atoom alliantie (BC)
v0.309.0 Refactors dim/curtail handling, splits hems and circuit (BC)
v0.309.0 Adds long-lived API key (BC)