Issue with Cost Tracker and increasing sensor resetting daily

[asuweb]

Describe the bug

Following discussion #747, believe there to a bug / unforeseen issue in logic of cost tracker.

Cost tracker set to track import meter, using entity sensor.solax_today_s_import_energy and another to track export meter.

As you'll see from the below screenshot and csv data, at 00:00 local, the entity being tracked sensor.solax_today_s_import_energy resets to zero as designed, and the cost tracker then goes to a negative value.

CSV of related data history.csv

state_class: total
last_reset: "2024-02-14T00:00:00+00:00"
name: agile_import_costs
mpan: "2700001188890"
target_entity_id: sensor.solax_today_s_import_energy
entity_accumulative_value: true
kind: cost_tracker
account_id: A-5D061854
is_tracking: true
tracked_charges:
  - start: "2024-02-15T00:00:00+00:00"
    end: "2024-02-15T00:30:00+00:00"
    rate: 0.116235
    consumption: -14.110000000000001
    cost: -1.6400758500000001
  - start: "2024-02-15T00:30:00+00:00"
    end: "2024-02-15T01:00:00+00:00"
    rate: 0.121065
    consumption: 0.03
    cost: 0.00363195
  - start: "2024-02-15T01:00:00+00:00"
    end: "2024-02-15T01:30:00+00:00"
    rate: 0.117285
    consumption: 0.32
    cost: 0.0375312
  - start: "2024-02-15T01:30:00+00:00"
    end: "2024-02-15T02:00:00+00:00"
    rate: 0.10584
    consumption: 0.91
    cost: 0.0963144
  - start: "2024-02-15T02:00:00+00:00"
    end: "2024-02-15T02:30:00+00:00"
    rate: 0.11025
    consumption: 0.3999999999999999
    cost: 0.04409999999999999
  - start: "2024-02-15T05:00:00+00:00"
    end: "2024-02-15T05:30:00+00:00"
    rate: 0.12306
    consumption: 0.020000000000000018
    cost: 0.002461200000000002
  - start: "2024-02-15T05:30:00+00:00"
    end: "2024-02-15T06:00:00+00:00"
    rate: 0.12411
    consumption: 0.26
    cost: 0.0322686
  - start: "2024-02-15T06:00:00+00:00"
    end: "2024-02-15T06:30:00+00:00"
    rate: 0.139335
    consumption: 0.30999999999999983
    cost: 0.04319384999999998
  - start: "2024-02-15T06:30:00+00:00"
    end: "2024-02-15T07:00:00+00:00"
    rate: 0.13671
    consumption: 0.22999999999999998
    cost: 0.031443299999999993
  - start: "2024-02-15T07:00:00+00:00"
    end: "2024-02-15T07:30:00+00:00"
    rate: 0.1323
    consumption: 0.010000000000000231
    cost: 0.0013230000000000305
  - start: "2024-02-15T07:30:00+00:00"
    end: "2024-02-15T08:00:00+00:00"
    rate: 0.15435
    consumption: 0.20000000000000018
    cost: 0.03087000000000003
  - start: "2024-02-15T08:00:00+00:00"
    end: "2024-02-15T08:30:00+00:00"
    rate: 0.12873
    consumption: 0.10999999999999988
    cost: 0.014160299999999983
  - start: "2024-02-15T08:30:00+00:00"
    end: "2024-02-15T09:00:00+00:00"
    rate: 0.14595
    consumption: 0.10000000000000009
    cost: 0.014595000000000014
  - start: "2024-02-15T09:00:00+00:00"
    end: "2024-02-15T09:30:00+00:00"
    rate: 0.138915
    consumption: 0.3999999999999999
    cost: 0.05556599999999998
  - start: "2024-02-15T09:30:00+00:00"
    end: "2024-02-15T10:00:00+00:00"
    rate: 0.139755
    consumption: 0.3999999999999999
    cost: 0.055901999999999986
  - start: "2024-02-15T10:00:00+00:00"
    end: "2024-02-15T10:30:00+00:00"
    rate: 0.1323
    consumption: 0.30000000000000027
    cost: 0.03969000000000004
  - start: "2024-02-15T10:30:00+00:00"
    end: "2024-02-15T11:00:00+00:00"
    rate: 0.125055
    consumption: 0.40000000000000036
    cost: 0.050022000000000046
  - start: "2024-02-15T11:00:00+00:00"
    end: "2024-02-15T11:30:00+00:00"
    rate: 0.12348
    consumption: 0.7999999999999998
    cost: 0.098784
  - start: "2024-02-15T11:30:00+00:00"
    end: "2024-02-15T12:00:00+00:00"
    rate: 0.12432
    consumption: 0.5999999999999996
    cost: 0.07459199999999995
  - start: "2024-02-15T12:00:00+00:00"
    end: "2024-02-15T12:30:00+00:00"
    rate: 0.12432
    consumption: 2.5
    cost: 0.3108
  - start: "2024-02-15T12:30:00+00:00"
    end: "2024-02-15T13:00:00+00:00"
    rate: 0.12705
    consumption: 3.200000000000001
    cost: 0.40656000000000014
  - start: "2024-02-15T13:00:00+00:00"
    end: "2024-02-15T13:30:00+00:00"
    rate: 0.12726
    consumption: 2.6999999999999993
    cost: 0.3436019999999999
  - start: "2024-02-15T13:30:00+00:00"
    end: "2024-02-15T14:00:00+00:00"
    rate: 0.13314
    consumption: 0.09999999999999964
    cost: 0.013313999999999953
  - start: "2024-02-15T15:00:00+00:00"
    end: "2024-02-15T15:30:00+00:00"
    rate: 0.143535
    consumption: 1.6000000000000014
    cost: 0.2296560000000002
untracked_charges: []
total_consumption: 1.790000000000001
unit_of_measurement: GBP
device_class: monetary
icon: mdi:currency-gbp
friendly_name: Octopus Energy Cost Tracker agile_import_costs

Reproduction steps

Create a cost tracker that tracks an accumulating sensor that resets daily

Expected behaviour

Expect that the cost tracker resets to zero daily

Tariff Code

E-1R-AGILE-23-12-06-F

Integration Version

10.1.0

Home Assistant Version

2024.2.1

Fresh Install?

Not specified

Home Assistant Logs

I've enabled and will update this issue tomorrow once the midnight reset has occurred.

Confirmation

• [X] I confirm that I cannot find my solution within the documentation
• [X] I confirm that I cannot find my solution within the FAQ

[BottlecapDave]

Thanks for the issue, and sorry you're encountering it. I'll try and take a look when I can.

[BottlecapDave]

Hello. This should hopefully be fixed in v10.1.1. Please confirm when you can :)

[billmichell]

Downloaded and new cost tracker created. We shall see when it resets at midnight!

[billmichell]

Looking good

[asuweb]

Many thanks for the quick fix. I can confirm this has now been resolved and is working as expected

[BottlecapDave]

Closing as this looks like it's fixed now.