Added support for Duke Energy smart meters

.coveragerc

@@ -612,6 +612,7 @@ omit =
     homeassistant/components/sensor/domain_expiry.py
     homeassistant/components/sensor/dte_energy_bridge.py
     homeassistant/components/sensor/dublin_bus_transport.py
+    homeassistant/components/sensor/duke_energy.py
     homeassistant/components/sensor/dwd_weather_warnings.py
     homeassistant/components/sensor/ebox.py
     homeassistant/components/sensor/eddystone_temperature.py

homeassistant/components/sensor/duke_energy.py

@@ -0,0 +1,84 @@
+"""
+Support for Duke Energy Gas and Electric meters.
+
+For more details about this component, please refer to the documentation at
+https://home-assistant.io/components/sensor.duke_energy/
+"""
+import logging
+
+import voluptuous as vol
+
+from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.const import CONF_USERNAME, CONF_PASSWORD
+from homeassistant.helpers.entity import Entity
+import homeassistant.helpers.config_validation as cv
+
+REQUIREMENTS = ['pydukeenergy==0.0.6']
+
+_LOGGER = logging.getLogger(__name__)
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_USERNAME): cv.string,
+    vol.Required(CONF_PASSWORD): cv.string,
+})
+
+LAST_BILL_USAGE = "last_bills_usage"
+LAST_BILL_AVERAGE_USAGE = "last_bills_average_usage"
+LAST_BILL_DAYS_BILLED = "last_bills_days_billed"
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Setup all Duke Energy meters."""
+    from pydukeenergy.api import DukeEnergy, DukeEnergyException
+
+    try:
+        duke = DukeEnergy(config[CONF_USERNAME],
+                          config[CONF_PASSWORD],
+                          update_interval=120)
+    except DukeEnergyException:
+        _LOGGER.error("Failed to setup Duke Energy")
+        return
+
+    add_devices([DukeEnergyMeter(meter) for meter in duke.get_meters()])
+
+
+class DukeEnergyMeter(Entity):
+    """Representation of a Duke Energy meter."""
+
+    def __init__(self, meter):
+        """Initialize the meter."""
+        self.duke_meter = meter
+
+    @property
+    def name(self):
+        """Return the name."""
+        return "duke_energy_{}".format(self.duke_meter.id)
+
+    @property
+    def unique_id(self):
+        """Return the unique ID."""
+        return self.duke_meter.id
+
+    @property
+    def state(self):
+        """Return yesterdays usage."""
+        return self.duke_meter.get_usage()
+
+    @property
+    def unit_of_measurement(self):
+        """Return the unit of measurement this sensor expresses itself in."""
+        return self.duke_meter.get_unit()
+
+    @property
+    def device_state_attributes(self):
+        """Return the state attributes."""
+        attributes = {
+            LAST_BILL_USAGE: self.duke_meter.get_total(),
+            LAST_BILL_AVERAGE_USAGE: self.duke_meter.get_average(),
+            LAST_BILL_DAYS_BILLED: self.duke_meter.get_days_billed()
+        }
+        return attributes
+
+    def update(self):
+        """Update meter."""
+        self.duke_meter.update()

requirements_all.txt

@@ -797,6 +797,9 @@ pydispatcher==2.0.5
 # homeassistant.components.android_ip_webcam
 pydroid-ipcam==0.8
 
+# homeassistant.components.sensor.duke_energy
+pydukeenergy==0.0.6
+
 # homeassistant.components.sensor.ebox
 pyebox==1.1.4