smartmeter_iotsa - read current household energy use

This plugin interfaces to a iotsa p1 reader https://github.com/cwi-dis/iotsaSmartMeter. It consists of an esp8266 that interfaces to the standardised dutch smart meter p1 port, see DSMR v2.2.

It reads all information including current electricity and gas use, electricity delivered back to the net, total consumption, etc.

requirements

• A dutch smart energy meter.
• A iotsa p1 reader.

schema

• sensors/smartMeter: raw data read from the smart meter:
  • timestamp: Time of reading, as provided by the smart meter itself (isotime).
  • meter_id_electricity and meter_id_gas: unique IDs of the meters (string).
  • current_kw: Current electricity use in kW (float).
  • total_kwh_tariff_1: Total electricity use under normal tariff over meter lifetime (kWh, float).
  • total_kwh_tariff_2: Total electricity use under reduced (night) tariff over meter lifetime (kWh, float).
  • all of those are also available with _returned appended for delivery back to the net.
  • current_tariff: integer, 1 or 2 depending on day or night.
  • total_power_failures: total number of power failures over device lifetime (integer).
  • total_power_failures_: total number of long power failures over device lifetime (integer).
  • total_gas_m3: Total gas consumption over meter lifetime (float).
  • unkown: Other readings. This element has a tag attribute with the DSMR identifier and the data is a string with the unparsed DSMR content.
• plugindata/smartmeter_iotsa/host: string, host name or IP address of the iotsa p1 reader.
• plugindata/smartmeter_iotsa/protocol: protocol to access the iotsa p1 reader (http, https or coap).

internal actions

• Once every minute the smart meter is read and the data deposited into sensors/smartMeter.
• Whenever the data in sensors/smartMeter is changed environment/energy/electricity is updated.