diff --git a/homeassistant/components/technove/diagnostics.py b/homeassistant/components/technove/diagnostics.py
new file mode 100644
index 00000000000..11a530ef263
--- /dev/null
+++ b/homeassistant/components/technove/diagnostics.py
@@ -0,0 +1,23 @@
+"""Diagnostics support for TechnoVE."""
+
+from __future__ import annotations
+
+from dataclasses import asdict
+from typing import Any
+
+from homeassistant.components.diagnostics import async_redact_data
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+
+from .const import DOMAIN
+from .coordinator import TechnoVEDataUpdateCoordinator
+
+TO_REDACT = {"unique_id", "mac_address"}
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, entry: ConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for a config entry."""
+    coordinator: TechnoVEDataUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
+    return async_redact_data(asdict(coordinator.data.info), TO_REDACT)
diff --git a/tests/components/technove/snapshots/test_diagnostics.ambr b/tests/components/technove/snapshots/test_diagnostics.ambr
new file mode 100644
index 00000000000..2e81f124ba5
--- /dev/null
+++ b/tests/components/technove/snapshots/test_diagnostics.ambr
@@ -0,0 +1,36 @@
+# serializer version: 1
+# name: test_diagnostics
+  dict({
+    'auto_charge': True,
+    'conflict_in_sharing_config': False,
+    'current': 23.75,
+    'energy_session': 12.34,
+    'energy_total': 1234,
+    'high_charge_period_active': False,
+    'in_sharing_mode': False,
+    'is_battery_protected': False,
+    'is_session_active': True,
+    'is_static_ip': False,
+    'is_up_to_date': True,
+    'last_charge': '''
+      1701072080,0,17.39
+  
+    ''',
+    'mac_address': '**REDACTED**',
+    'max_charge_percentage': 0.9,
+    'max_current': 24,
+    'max_station_current': 32,
+    'name': 'TechnoVE Station',
+    'network_ssid': 'Connecting...',
+    'normal_period_active': False,
+    'rssi': -82,
+    'status': dict({
+      '__type': "<enum 'Status'>",
+      'repr': "<Status.PLUGGED_CHARGING: 'plugged_charging'>",
+    }),
+    'time': 1701000000,
+    'version': '1.82',
+    'voltage_in': 238,
+    'voltage_out': 238,
+  })
+# ---
diff --git a/tests/components/technove/test_diagnostics.py b/tests/components/technove/test_diagnostics.py
new file mode 100644
index 00000000000..878b084c0c3
--- /dev/null
+++ b/tests/components/technove/test_diagnostics.py
@@ -0,0 +1,22 @@
+"""Tests for TechnoVE diagnostics."""
+
+from syrupy.assertion import SnapshotAssertion
+
+from homeassistant.core import HomeAssistant
+
+from tests.common import MockConfigEntry
+from tests.components.diagnostics import get_diagnostics_for_config_entry
+from tests.typing import ClientSessionGenerator
+
+
+async def test_diagnostics(
+    hass: HomeAssistant,
+    hass_client: ClientSessionGenerator,
+    init_integration: MockConfigEntry,
+    snapshot: SnapshotAssertion,
+) -> None:
+    """Test diagnostics."""
+    assert (
+        await get_diagnostics_for_config_entry(hass, hass_client, init_integration)
+        == snapshot
+    )