My Octopus Agile & Go Tariff comparison / analysis website

Zarch · 2020-03-16T08:49:52.348Z

Chris_Wright:

Am I right in thinking you can switch back to another tariff at any time?

You can move Octopus tariff as and when, fee free. I’ve seen of people get moved the same day as they asked. Seems pretty flexible.

Zarch · 2020-03-16T09:18:57.028Z

borpin:

I wonder, as you seem to have an in, they might consider extending their API such that it would return a simple results of the minimal data. Something line

Cost now

Cost next

1Hr cheapest in next 24 (or period set by option)

2Hr cheapest in next 24

basically anything a user is likely to need on a regular basis to manage their use. May even help their server load as I suspect it is starting to increase!

Brian,

It might be worth you getting yourself on the Octopus API forum.
People are already talking about API improvements in there.

https://forum.octopus.energy/t/api-feedback-suggestions/558

Its Phil Steele (from Octopus) little forum, so imagine the right people will see the comments etc.

borpin · 2020-03-16T13:43:59.441Z

Zarch:

It might be worth you getting yourself on the Octopus API forum.

I’ll need to wait until they actually get my switch sorted out!!!

TrystanLea · 2020-03-17T09:38:10.873Z

Zarch:

My little website and twitter project has become so popular that Octopus Energy themselves got in touch to ask me all about it.

Fantastic @Zarch!

TrystanLea · 2020-03-17T09:41:15.435Z

This screenshot from PV Output? is intriguing:

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Is the irradiation and cloud cover forecast now built into PV output?

Zarch · 2020-03-17T10:05:05.848Z

TrystanLea:

Is the irradiation and cloud cover forecast now built into PV output?

No, my python script does that.
Cloud Cover comes from Dark Sky.
Irridation and Sun Angle from
https://pysolar.readthedocs.io/en/latest/

I then send them to PVOutput as extended data variables.

TrystanLea · 2020-03-17T10:13:55.947Z

Fantastic, I will take a look at pysolar, it would be interesting to see the correlation between

irridation x (100 - cloud cover)

and your solar gen feed over time, how well does it predict your solar output generally?

Perhaps (120 - cloud cover) as panels will still likely generate something during 100% cloud cover?..

Bill.Thomson · 2020-03-17T18:49:14.340Z

TrystanLea:

as panels will still likely generate something during 100% cloud cover?

They usually do, but it depends on the thickness of the cloud deck.

Here’s a screen cap of my PV system output:

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and here’s a couple of pics of the current sky conditions:

Looking East:

DSC033661920×1080 737 KB

Looking West:

DSC033671920×1080 734 KB

I’ve also seen zero PV output on days where the sky appears as it does in the two photos above.

TrystanLea · 2020-03-18T18:09:32.035Z

Good example, not too dissimilar weather to here today

Zarch · 2020-03-27T16:12:41.696Z

More low, low, low pricing tomorrow.

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borpin · 2020-03-27T17:10:45.599Z

Switch done. Of course all meter installs are stalled now…

borpin · 2020-04-02T20:25:40.870Z

4 posts were split to a new topic: DarkSky API access to be closed by Apple

borpin · 2020-04-02T21:51:43.908Z

Finally got a solution working for a local dashboard to go on my tablet with today’s Octopus Agile pricing.

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Using Home Assistant and the Node-Red, InfluxDB and Grafana add-ons (really there is no easier way to install all 3 so they work seamlessly together).

The graph shows a rolling 24Hr so far left bar is the current price. When it gets beyond half 10 at night you start to see a blank area to the right as the new data does not come out until about 16:30 but that is fine for my purposes. It is easy for the rest of the household to understand when it will be cheap.

This is a Node-Red dashboard as I could not get HADashboard to authenticate and let me show the Grafana Graph.

[edit]
I added more detail on the HA community post

Bill.Thomson · 2020-04-02T22:57:03.688Z

borpin:

When it gets beyond half 10 at night you start to see a blank area to the right as the new data does not come out until about 16:30

Grafana has a time window selection called today so far.
Have you tried that?

borpin · 2020-04-03T06:13:04.944Z

Bill.Thomson:

Grafana has a time window selection called today so far .

No I haven’t, but when the new pricing comes out, it fills the rest of the next 24Hrs up which is what I want - it tells you when the next cheapest period is (max 24hrs out) so I use now to now+1d which works well.

The other trick is to add a refresh to the URL.

Zarch · 2020-04-03T06:23:47.036Z

borpin:

now+1d

You can also do things like now+1d/d
The /d limits just to the end of that day… rather than going all 24hrs?

borpin · 2020-04-03T06:25:23.417Z

Zarch:

rather than going all 24hrs?

Going all 24hrs keeps the size of the graph constant otherwise I suspect it will want to resize all the time. Instinctively you also know how far away the next cheapest period is.

Zarch · 2020-04-04T16:11:57.908Z

I have no words for tomorrow afternoon!!!

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Zarch · 2020-04-06T09:48:20.415Z

The number one question asked of me when there are Agile price plunges…

How many price plunges have there been?

How frequent are they?

Well ask no more…

Energy Stats UK

Agile Price Plunges - Energy Stats UK

Agile Price Plunge Negative Pricing charts. See when Octopus Agile Tariff paid your for electricity.

Est. reading time: 1 minute

Zarch · 2020-04-19T15:25:57.741Z

More fun pricing tomorrow.

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