diff --git a/homeassistant/components/fronius/coordinator.py b/homeassistant/components/fronius/coordinator.py
index 73bded645f36..f8a46fc73dfd 100644
--- a/homeassistant/components/fronius/coordinator.py
+++ b/homeassistant/components/fronius/coordinator.py
@@ -269,7 +269,7 @@ class FroniusModbusInverterUpdateCoordinator(FroniusModbusCoordinatorBase):
             values[f"mppt_{number}_current_dc"] = module.current
             values[f"mppt_{number}_voltage_dc"] = module.voltage
             values[f"mppt_{number}_power_dc"] = module.power
-            values[f"mppt_{number}_energy_dc"] = module.energy
+            values[f"mppt_{number}_energy"] = module.energy
         return self._as_device_data(values)
 
 
diff --git a/homeassistant/components/fronius/sensor.py b/homeassistant/components/fronius/sensor.py
index cb245f9d7194..ad3831f36914 100644
--- a/homeassistant/components/fronius/sensor.py
+++ b/homeassistant/components/fronius/sensor.py
@@ -324,12 +324,12 @@ def _modbus_mppt_descriptions(
             translation_placeholders={"mppt_no": str(mppt_no)},
         ),
         FroniusSensorEntityDescription(
-            key=f"mppt_{mppt_no}_energy_dc",
+            key=f"mppt_{mppt_no}_energy",
             native_unit_of_measurement=UnitOfEnergy.WATT_HOUR,
             device_class=SensorDeviceClass.ENERGY,
             state_class=SensorStateClass.TOTAL_INCREASING,
             invalid_when_falsy=True,
-            translation_key="modbus_mppt_energy_dc",
+            translation_key="modbus_mppt_energy",
             translation_placeholders={"mppt_no": str(mppt_no)},
         ),
     ]
diff --git a/homeassistant/components/fronius/strings.json b/homeassistant/components/fronius/strings.json
index 93659cfcfd65..f2ff3db4400b 100644
--- a/homeassistant/components/fronius/strings.json
+++ b/homeassistant/components/fronius/strings.json
@@ -264,8 +264,8 @@
       "modbus_mppt_current_dc": {
         "name": "MPPT {mppt_no} DC current"
       },
-      "modbus_mppt_energy_dc": {
-        "name": "MPPT {mppt_no} DC energy"
+      "modbus_mppt_energy": {
+        "name": "MPPT {mppt_no} energy"
       },
       "modbus_mppt_power_dc": {
         "name": "MPPT {mppt_no} DC power"
diff --git a/tests/components/fronius/snapshots/test_diagnostics.ambr b/tests/components/fronius/snapshots/test_diagnostics.ambr
index 04651d1234d6..adbd60c1f000 100644
--- a/tests/components/fronius/snapshots/test_diagnostics.ambr
+++ b/tests/components/fronius/snapshots/test_diagnostics.ambr
@@ -741,7 +741,7 @@
               'mppt_1_current_dc': dict({
                 'value': 8.2,
               }),
-              'mppt_1_energy_dc': dict({
+              'mppt_1_energy': dict({
                 'value': 1000000,
               }),
               'mppt_1_power_dc': dict({
diff --git a/tests/components/fronius/test_modbus.py b/tests/components/fronius/test_modbus.py
index 5305a540d8a2..9806d2101281 100644
--- a/tests/components/fronius/test_modbus.py
+++ b/tests/components/fronius/test_modbus.py
@@ -74,7 +74,7 @@ async def test_gen24_storage_mppt(
     assert_state(hass, "sensor.gen24_storage_mppt_1_dc_current", 8.2)
     assert_state(hass, "sensor.gen24_storage_mppt_1_dc_voltage", 402.1)
     assert_state(hass, "sensor.gen24_storage_mppt_1_dc_power", 3300)
-    assert_state(hass, "sensor.gen24_storage_mppt_1_dc_energy", 1000000)
+    assert_state(hass, "sensor.gen24_storage_mppt_1_energy", 1000000)
     assert_state(hass, "sensor.gen24_storage_mppt_2_dc_power", 1650)
     assert_state(hass, "sensor.gen24_storage_mppt_3_dc_power", 0)
     assert_state(hass, "sensor.gen24_storage_mppt_4_dc_power", 480)
@@ -301,7 +301,7 @@ async def test_not_implemented_values(
 
     assert_state(hass, "sensor.inverter_name_mppt_1_dc_power", 3300)
     assert hass.states.get("sensor.inverter_name_mppt_2_dc_power") is None
-    assert hass.states.get("sensor.inverter_name_mppt_2_dc_energy") is None
+    assert hass.states.get("sensor.inverter_name_mppt_2_energy") is None
     # PV total unknown when a PV module doesn't report energy
     assert hass.states.get("sensor.inverter_name_pv_energy_total") is None
 
@@ -312,7 +312,7 @@ async def test_not_implemented_values(
     freezer.tick(FroniusModbusInverterUpdateCoordinator.default_interval)
     async_fire_time_changed(hass)
     await hass.async_block_till_done()
-    assert_state(hass, "sensor.inverter_name_mppt_1_dc_energy", "unknown")
+    assert_state(hass, "sensor.inverter_name_mppt_1_energy", "unknown")
 
 
 @pytest.mark.usefixtures("entity_registry_enabled_by_default")