OctoCostToo

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Summary

OctoCostToo is an AppDaemon app for Home Assistant which calculates the daily, monthly and yearly cost and usage of the Octopus Energy tariffs. This is a refactored and improved fork of the now archived octocost.

By default OctoCostToo only gathers usage and cost information for the current (as of Jan 2021) Agile tariff: AGILE-18-02-21 but can be configured to gather usage and cost information for an another electricity tariff, giving you the opportunity to compare your current tariff to the Agile tariff.

Usage and cost information can also be gathered for a gas tariff.

OctoCostToo creates and sets sensors for daily, monthly and yearly cost (£) and usage (kWh), up to and including yesterday:

sensor.octopus_daily_cost
sensor.octopus_daily_usage
sensor.octopus_monthly_cost
sensor.octopus_monthly_usage
sensor.octopus_yearly_cost
sensor.octopus_yearly_usage

If a comparison electricity tariff is configured, OctoCostToo will also create the following sensors:

sensor.octopus_comparison_daily_cost
sensor.octopus_comparison_monthly_cost
sensor.octopus_comparison_yearly_cost

If the gas section is configured, OctoCostToo will also create the following sensors:

sensor.octopus_monthly_gas_cost
sensor.octopus_monthly_gas_usage
sensor.octopus_yearly_gas_cost
sensor.octopus_yearly_gas_usage

The data is updated once every two hours, although in reality the data Octopus Energy gets only seems to be updated once a day, so this is a compromise between trying to be up-to-date, and not hammering their servers, when the data doesn't update very frequently anyway.

Installation

Use HACS or download the tarball and extract the OctoCostToo directory from inside the apps directory to your local apps directory, then add the configuration to enable the OctoCostToo module.

Apps.yaml Configuration

OctoCostToo:
  module: octocosttoo 
  class: OctoCostToo 
  region: H
  mpan: <13 digit MPAN number>
  serial:  <Serial number>
  auth: <Octopus Energy API Key>
  start_date: 2020-02-23
  comparison_tariff: FIX-12M-20-02-12
  gas:
    mprn: <Gas MPRN number>
    gas_serial: <Gas meter serial number>
    gas_tariff: FIX-12M-20-02-12
    gas_start_date: 2020-02-23

The module and class sections need to remain as above, other sections should be changed as required. The whole gas section is optional and can be excluded if not required.

Field	Changeable	Example
Title	Yes	octocosttoo
module	No	octocosttoo
class	No	OctoCostToo
region	Yes	H
mpan	Yes	2000012345678
serial	Yes	20L123456
auth	Yes	sk_live_abcdefg
start_date	Yes	2020-02-23
comparison_tariff	Yes	FIX-12M-20-02-12
gas:	Yes
mprn	Yes	1234567890
gas_serial	Yes	E1S12345678901
gas_tariff	Yes	FIX-12M-20-02-12
gas_start_date	Yes	2020-02-23

The start_date setting should be set to the date you started on the Agile Octopus tariff, not the date you joined Octopus Energy. It is used to adjust the start point if you joined within the current year or month, it should not be left blank if you joined earlier. region is the region letter from the end of E-1R-AGILE-18-02-21-H which can be found on the Octopus Energy developer dashboard webpage in the Unit Rates section for your account.

Limitations

• OctoCostToo only caters for single-rate comparison electricity and gas tariffs.

Lovelace UI Cards

Once the sensors are created, they can be displayed as cards within the Lovelace UI. For example:

- entities:
    - entity: sensor.octopus_yearly_usage
      icon: 'mdi:flash'
      name: Yearly Usage (kWh)
    - entity: sensor.octopus_yearly_cost
      icon: 'mdi:cash'
      name: Yearly Cost (£)
    - entity: sensor.octopus_monthly_usage
      icon: 'mdi:flash'
      name: Monthly Usage (kWh)
    - entity: sensor.octopus_monthly_cost
      icon: 'mdi:cash'
      name: Monthly Cost (£)
  show_icon: true
  title: Octopus Usage / Cost
  type: glance

Contributing

Want to contribute to this project? Great! Fork the repo, make your changes (don't forget to add tests 😉) and submit a pull request.

You can install the necessary dependencies and run the tests locally as follows:

$ python -m pip install --upgrade pip
$ pip install -r requirements-test.txt
$ pytest

Credit

OctoCostToo is a fork of the original octocost.

NOTE: The configuration for OctoCostToo is not compatible with the original.