Octopus Flux tariff from April

[Stinsy]

Hello,
The announcement from Octopus that their night-time charge rate will be significantly less than the day-time export rate was a surprise and has prompted me to search for answers to the following question.

Can anyone tell me if the Tesla gateway assesses the next day sunshine forecast to decide whether to charge the batteries in the night or to leave them in whatever partial charge state they are in?

My daily consumption rates vary from 14kWh to 60 kWh per day and the 3x batteries have approx 40kWh storage. In the summer the PV system exceeds my load, but not in the winter.

Many thanks,

David

I don’t know that anyone else on this forum has a Tesla house battery. I know that Victron and SMA kit has this functionality built in. Additionally you can implement it with HomeAssistant or Node Red on many inverters. This is a sought-after feature for those who don’t get paid for exporting.

Why not just fill your battery on cheap rate and export it all in the premium slot?

[jonc_uk]

I know that Victron and SMA kit has this functionality built in. Additionally you can implement it with HomeAssistant or Node Red on many inverters. This is a sought-after feature for those who don’t get paid for exporting.

The SMA Sunny Island does not have this for overnight charging, although if you read the docs, it reads like it does.

[Fintray]

I have a Tesla Powerwall 2 but without the gateway, it charges completely during the cheap rate and I find now that it mainly discharges from around 8pm, it is set for Time-Based Control, Energy Exports set to Everything and Grid charging enabled.

I don't know if it does access a local sunshine forecast but the algorithm does adapt depending on your usage and the amount of solar input.

My Tesla Powerwall now "sits behind" a Victron system that controls any export to the grid.

[Stinsy]

I know that Victron and SMA kit has this functionality built in. Additionally you can implement it with HomeAssistant or Node Red on many inverters. This is a sought-after feature for those who don’t get paid for exporting.

The SMA Sunny Island does not have this for overnight charging, although if you read the docs, it reads like it does.

[Stinsy]

Here is a video about the topic of this thread.

I’ve always thought that Octopus’ export tariffs were unbalanced. In particular that 15p has always been too high (not that I’ve been complaining) and that Agile Export prices have been too low. Flux has never been for me because I consume too much and generate too little and now they’ve narrowed the margins, it is even less attractive.

[SporranMcDonald]

Back in Nov24 I moved to COSY & "Outgoing Variable".

The (big) FLUX Export Rate drop for daytime, means that I won't be going back to FLUX ( with current rates ).

I watched the, above, "Gary Does Solar" and anticipate that forcing battery export during the Demand Peak as what we will be encouraged towards. . . . . as Gary suggests.

[nowty]

I'm sure our IOG with double bubble export gold rush will come to an end at some point but we keep saying that and it still continues.

Wholesale prices have really taken a heavy fall over the past couple of months (about 30%) after quite a long slow climb, year ahead is now under 7.5p / kWh. If prices stay at current levels pressure will build for Octopus to pull the plug on us.

I'm milking it whilst its still there.

[Yuff]

I'm sure our IOG with double bubble export gold rush will come to an end at some point but we keep saying that and it still continues.

Wholesale prices have really taken a heavy fall over the past couple of months (about 30%) after quite a long slow climb, year ahead is now under 7.5p / kWh. If prices stay at current levels pressure will build for Octopus to pull the plug on us.

I'm milking it whilst its still there.

You can fix export at 15p for 12 months

[nowty]

I'm sure our IOG with double bubble export gold rush will come to an end at some point but we keep saying that and it still continues.

Wholesale prices have really taken a heavy fall over the past couple of months (about 30%) after quite a long slow climb, year ahead is now under 7.5p / kWh. If prices stay at current levels pressure will build for Octopus to pull the plug on us.

I'm milking it whilst its still there.

You can fix export at 15p for 12 months

I almost 100% sure that does NOT fix your export tariff as that is separate to IOG, it only fixes your import rates. Probably not a good time to opt to fixed rates at the moment due to recent 30% crash of wholesale prices.

The fixed Outgoing Octopus (export) tariff has been a variable rate tariff since Nov last year for those moving to it or renewing. The fixed 15p variant can be changed given a months notice except if your still on the older pre Nov 2024 fixed version.

[Stinsy]

I'm sure our IOG with double bubble export gold rush will come to an end at some point but we keep saying that and it still continues.

Wholesale prices have really taken a heavy fall over the past couple of months (about 30%) after quite a long slow climb, year ahead is now under 7.5p / kWh. If prices stay at current levels pressure will build for Octopus to pull the plug on us.

I'm milking it whilst its still there.

You can fix export at 15p for 12 months

I almost 100% sure that does NOT fix your export tariff as that is separate to IOG, it only fixes your import rates. Probably not a good time to opt to fixed rates at the moment due to recent 30% crash of wholesale prices.

The fixed Outgoing Octopus (export) tariff has been a variable rate tariff since Nov last year for those moving to it or renewing. The fixed 15p variant can be changed given a months notice except if your still on the older fixed version.

And I assumed that the rate would change very soon after they made it "vraible", but to-date: nothing.

While nothing so good can possibly last forever, it has endured so far.