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Compare Octopus tariffs using own real world data

Electricity, Tariffs, Monitoring & Providers

Last Post by Toodles 2 years ago

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Tim441

(@tim441)

Prominent Member Contributor

Joined: 3 years ago

Posts: 365

Topic starter 23/01/2024 2:15 pm

A great website to help compare Octopus tariffs using own real world data
https://octopriceuk.vercel.app/

in my case @OctopusEnergy saves me £890 from Feb 23 - Jan 24 - helped by @GivEnergy batteries

Tracker tariff suits us best with ashp - avoids need to juggle Time of Use.

ToU tariffs like Go Agile, Cosy, Intelligent offer great options as well if you can make use of cheap rates and avoid peaks.

In my case we use an ASHP which is on 24x7 but with a setback overnight of 1deg in cold weather. So I don't think we can benefit fully from Agile cheaper rates.

We have 3 x 8.2kw batteries but with only a Gen1 hybrid inverter we can only charge at 2.6kwh. so again its hard to benefit fully from cheap rates or avoid peak rates.

On the savings page on that website if you click the + you can add other rates to compare.

This topic was modified 2 years ago by Tim441

Listed Grade 2 building with large modern extension.
LG Therma V 16kw ASHP
Underfloor heating + Rads
8kw pv solar
3 x 8.2kw GivEnergy batteries
1 x GivEnergy Gen1 hybrid 5.0kw inverter
Manual changeover EPS
MG4 EV

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Tim441

(@tim441)

Prominent Member Contributor

Joined: 3 years ago

Posts: 365

Topic starter 25/01/2024 11:56 am

I've been in touch with the developer and he has added options to compare

Week

Month

Year

Or even a custom period

might be useful if you want a more granular look or if you change tariff?

the app has got a new shorter domain name: https://octopriceuk.app&source=gmail&ust=1706269397819000&usg=AOvVaw0xscAGC33wBqKOGbcJHaj S"> https://octopriceuk.app (without the 'vercel' bit). The existing domain STILL works fine, but if you would use the new domain you will have to enter your API key again on the new domain once.

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Tim441

(@tim441)

Prominent Member Contributor

Joined: 3 years ago

Posts: 365

Topic starter 25/01/2024 1:34 pm

sorry .. link picked up some garbage:

https://octopriceuk.app

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Toodles

(@toodles)

Illustrious Member Contributor

Joined: 3 years ago

Posts: 2336

21/02/2024 4:41 pm

@tim441 Having moved over from Agile to Cosy some months back, I have just moved back to Agile. I could see the simplicity of setting 2 x 3 hour fixed slots a day has its’ attractions but, there was a 12 hour gap from the end of the afternoon charge to the start of the following morning and this was uncomfortably close to reverting to the grid at odd times. My other reason for going to Cosy was because of my present predicament with sight loss and the chore it became trying to select Agile best times. I note that there are large blocks of time where though the rate varies, Agile is still noticeably lower than Cosy; I have therefore set up ‘generic blocks of time’ for charging which even if I don’t alter them from day to day, they are still cheaper and more spread over the 24 hours than Cosy allows for. We shall see how it goes! Regards, Toodles.

Toodles, heats his home with cold draughts and cooks food with magnets.

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AllyFish

(@allyfish)

Noble Member Contributor

Joined: 3 years ago

Posts: 516

22/02/2024 12:55 pm

@toodles thanks for your experience and information. It's really helped me. I've just taken the 'plunge' with Agile, having been on Cosy for a year. Cosy has saved me £500 in the winter heating season by off-peak charging of 13kW of solar PV batteries. I think I can probably better that with Agile. I'll lose out on the fixed rate 15p/kWh export, but we export very little, and the added savings of Agile will more than compensate for reduced export earnings.

We do find in mid-winter the batteries run flat between their scheduled twice daily charging periods of 4-7am and 1-4pm each day, but 85% of our energy consumption is on the Cosy cheapest rate, with less than 5% on peak rate periods. That's usually the cooker, hob, etc., powered simultaneously with a high demand from the ASHP. The inverter output is limited to 3000W. That's fine, I can live with 5% on peak rate if the vast majority of my consumption is cheap rate. 🙂

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Toodles

(@toodles)

Illustrious Member Contributor

Joined: 3 years ago

Posts: 2336

22/02/2024 2:45 pm

@allyfish Hello Allyfish, this may be good news for you as I had Outgoing @ 15 pence per kW/h on Cosy and before when I was on Agile; I have now returned to Agile and still have my export @ 15. BTW, I have 27 kW/h of Tesla Powerwall so was able to just use thos 6 cosy hours and only once have to use the less cosy rate one day. Regards, Toodles.

Toodles, heats his home with cold draughts and cooks food with magnets.

👍

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