Notifications

Clear all

Octopus tariffs - API & choosing best tariff

Tim441 · 2023-02-18T18:08:09Z

I'm not sure if anyone has got the time or any interest in expanding on available Octopus API data & tariffs to aid personalised calculations for best tariff? For example: Octopus now have many different tariffs inc Standard/flexible, Tracker (Daily rates), Tesla (retiring soon), Flux, Cozy, Agile tracker (incoming, half hourly rates), Agile outgoing (Half hourly), Agile Outgoing (Fixed), SEG... and maybe others! Trying to choose the best one is becoming a very personalised issue depending on usage (days/times), PV solar, batteries, ASHP, EV But the "right" tariff is likely to have very significant differences in cost I was wondering whether someone with right skills could take the Octopus API key + MPAN to extract historical data etc to try and see the best tariff based on historical data (perhaps with certain assumptions if necessary?) For myself I have 16kw ASHP, 3 x 8.2 kw batteries, 8kw PV solar and am inclined to think my best combination is currently Tracker (daily) + Agile Outgoing (half hourly) but its possible that Flux will be better in the summer and Tracker (daily) + Agile Outgoing (half hourly) in winter! Even though I've had the ASHP for 3 winters we have only recently got to grips with weather compensation to ensure most efficient usage. At a guess we use around 8000kwh per annum. We used a hot tub a lot last year but I suspect that will be in the shed except for a month in the summer this year! I need to check but guess our solar production is around 4000 kw/h. Batteries give us options to potentially fill them at cheap tariff rates (as well as solar) & export at peak rates I'm not currently aware of any easy way of trying to work it out other than guesswork. any thoughts?

Page 4 / 4 Prev

Electricity, Tariffs, Monitoring & Providers

Last Post by Toodles 2 years ago

43 Posts

9 Users

14 Reactions

9,146 Views

RSS

Tim441

(@tim441)

Prominent Member Contributor

Joined: 3 years ago

Posts: 290

Topic starter 17/07/2023 7:30 am

one of the reasons its harder for me to take full advantage of periods of lower time of use tariffs is that my Givenergy Gen1 inverter can only charge/discharge from batteries at 2.6kwh. Gen2 and the new All in One offer much better options. My ASHP is a large one ... so again needs bigger throughput to take full advantage. its not worth upgrading as the system works fine and Tracker import with Fixed export is giving a very fair cost.

Overall very happy with the setup - installed 2021 .... before battery & material prices took off.

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

ReplyQuote

Toodles

(@toodles)

Illustrious Member Contributor

Joined: 3 years ago

Posts: 2023

29/07/2023 4:35 pm

@tim441 I see that tomorrow (Sunday 30th. July) Octopus Agile has a peppering of very cheap and some negative priced periods available. Guess who has just set up their Eddi to charge the DHW and also set the Tesla app to some negatively charged half hours to fill the battery?! Regards, Toodles

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

👍

ReplyQuote

Tim441

(@tim441)

Prominent Member Contributor

Joined: 3 years ago

Posts: 290

Topic starter 30/07/2023 8:20 am

@toodles yes...very nice! presumably wind is blowing nicely ..

Tracker is down at 12.06p as all day rate so I'm not unhappy with that. My Gen1 Givenergy inverter can only charge batteries at 2.6kwh.

Charging batteries as well as EV ... and heating hot tub!

Key question will be what happens over the winter - I'm hopeful that barring black swans out of Russia/Ukraine/China etc we will see overall wholesale prices well under standard rates

ReplyQuote

Toodles

(@toodles)

Illustrious Member Contributor

Joined: 3 years ago

Posts: 2023

30/07/2023 9:35 am

@tim441 No hot tub here or EV for that matter but, tomorrow’s laundry is running a day earlier and the oven is now on a an autoclean cycle! The battery is charging nicely and DHW is up to temperature. I have never been a gambler - that is until Agile came along.;-))) Regards, Toodles.

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

ReplyQuote

Toodles

(@toodles)

Illustrious Member Contributor

Joined: 3 years ago

Posts: 2023

30/07/2023 4:32 pm

I think I was ‘spoilt’ yesterday/today as tomorrow’s half hourly slots are rather more expensive! I have instructed Eddi not to ‘spend’ more than 10 pence per kW/h to heat the water tomorrow! Ah well, you win some…. (Of course this is still very a good rate by today’s reckoning, but Ill leave any PV output to export where it can as this still rewards me at 15p per kW/h.!) Regards, Toodles.

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

ReplyQuote

Toodles

(@toodles)

Illustrious Member Contributor

Joined: 3 years ago

Posts: 2023

02/08/2023 4:48 pm

Again, tomorrow (Aug. 3rd.) there are some very cheap half hour slots to avail oneself of for heating water / charging battery type purposes; my DHW will cost less than 10 pence for a day’s supply 😉 Regards, Toodles.

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

ReplyQuote