Custom Component: (Australia) OpenNEM

Share your Projects! Custom Integrations
1

I’ve created a series of sensors that retrieves data from OpenNEM regarding the National Electricity Market

6 Likes
2

It should be available in HACS soonish (you can add it as a custom repository now)

3

OK this is pretty cool… but I need to use some kind of template to edit the name…
image
Would be nice to be able to configure the friendly name to remove OpenNEM nsw1: from the card.
I am using auto-entities and fold-entity-row to display:

          - type: entities
            title: Open National Electricity Market
            show_header_toggle: false
            entities: 
              - type: custom:auto-entities
                card:
                  type: custom:fold-entity-row
                  head:
                    type: section
                    label: OpenNEM
                  open: true
                filter:
                  include:
                    - entity_id: "sensor.opennem_*"
                show_empty: true
                sort:
                  method: name

I know I can customize them…

4

I’ll add something :slight_smile:

1 Like
5

also noticed too many decimals for some of the entities:
image

6

I’ve pushed an update that will allow you to customise the name & fix the decimals

scratch that, somethings gone wrong

1 Like
7

I think i’ve fixed it - new version available

8

Just grabbed it.
If I use the name option, can I set that to just a null string?

Name: ''

Also… will it only change the friendly name?

Decimal places seem good now…

9

Hmm, good question - I dont know if it does.

Is there a method to change the friendly name to be different to the entity name?

10

There should be. It’s not working anyway. If I use the above it just ignores it. You should be able to set the friendly name in the component.

11

I’ll do some reading

1 Like
12

I already set up customise for them anyway. They would need the same prefix otherwise auto-entities won’t work for lovelace.
Great idea for a component anyway. Useful.
Kudos.

1 Like
13

Cheers - I was talking to a work colleague (another HA user too) the other day about his new energy provider who charges wholesale price* and this developed from a desire to see if we could somehow watch what the current wholesale price was and found the OpenNEM platform.

Its also a little bit depressing to see how little renewables we use in my state (NSW) and that we struggle to meet the energy demand without importing energy

  • its not quite as simple as that as it turns out
1 Like
14

Yeah I thought it was interesting seeing the renewable vs coal as well… Really interesting info. But hey… we can magically eliminate coal in 10 years right? Lol.

15

Hey… have you made a nice Lovelac card for this yet? The entity card is pretty ordinary…

16

No I havent - you’re right that the entities are a bit ordinary though. I’m not sure what I’d want it to be though (I’m not very creative when it comes to this stuff)

Happy to take ideas though!

EDIT: There is a bug/feature where it resets the value to zero if one doesnt exist (its particularly telling on the temperature value) - I probably should fix that too

1 Like
17

What is the issue with the pricing? I was planning controlling loads based on price.

18

The wholesale price didnt directly correlate to what the energy provider (Amber) were charging - since I posted that Amber have given me their formula but I’ve done nothing with it yet

19

Thanks, their ‘pricing’ page fine print does mention a Carbon offset added that is on top of the wholesale. I figure so long as we can get a price signal, that will do for load managment.
… but even better if can factor in the real Amber prices.

20

So OpenNEM is flooding my logs with errors…

2020-04-09 12:18:20 ERROR (MainThread) [homeassistant.helpers.entity] Update for sensor.opennem_nsw1_wind fails
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 279, in async_update_ha_state
    await self.async_device_update()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 476, in async_device_update
    await self.hass.async_add_executor_job(self.update)
  File "/usr/local/lib/python3.7/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/config/custom_components/opennem/sensor.py", line 156, in update
    self.opennem_data.update()
  File "/usr/src/homeassistant/homeassistant/util/__init__.py", line 240, in wrapper
    result = method(*args, **kwargs)
  File "/config/custom_components/opennem/sensor.py", line 194, in update
    _LOGGER.debug("OpenNEM was last updated %s minutes ago, skipping update", (dt_util_utcnow() - self.last_updated))
NameError: name 'dt_util_utcnow' is not defined