Update 06 June 2021...
Terima kasih kepada Niezarm yg telah berkongsi config beliau utk reset kwh apabila mendapat bill dari tnb di mana ianya berlainan utk tiap rumah. Rumah saya 24hb dan rumah Niezarm 13hb. Sebelum ini saya gunakan helper utk reset kwh counter bila 24hb. Cara Niezarm lagi mudah...
https://github.com/Niezarm/TNB_billing_Calculation
....................................................................
platform: template
sensors:
finaltnb_bill24hb:
friendly_name: "Final Bill TNB 24hb"
unit_of_measurement: 'RM'
icon_template: mdi:currency-usd
value_template: >
{% set O = states('sensor.2monthly_energy_kwh_normal') | float %}
{{ (O * 0.218) |round(2) }}
2monthly_energy_kwh:
source: sensor.energy_spent
cycle: monthly
tariffs:
normal
..............................................................................
Kena letak tariff, baru call service keluar utk utility_meter.reset
kemudian kena tambah automation
Config saya akan diperkemaskan semula utk guna cara ini...
bill tnb using home assistant kena tambah dari existing config file
kena tambah helper.. number input utk correct meter reading
kena tambah helper.. number input utk tnb24hb yg kena keyin manually tiap bulan lepas tnb baca meter. refer ke actual tnb bill utk tahu last meter reading value
https://www.youtube.com/watch?v=3o9a9HwUETk
referrence
https://www.home-assistant.io/integrations/utility_meter/
https://www.home-assistant.io/integrations/statistics/
https://www.home-assistant.io/integrations/template/
https://learn.openenergymonitor.org/electricity-monitoring/ct-sensors/interface-with-arduino