New Octopus tariff for solar and battery users - Octopus Flux

cm4ever

I believe there's still another price change to come in October - so probably a bit too early to understand the Flux effect/impact over the dark months yet.

QrizB

Oscarmax said:

Just carried out an estimated excel spread sheet calculation ... In theory I am going to be £51.91 worst off

and

Raxiel said:

Understandable but still disappointing.

The people who have done well on Flux have been exporting more than they've been importing, ie. they are net generators.

With wholesale energy prices falling, it's only to be expected that generation is a less lucrative business to be in.

scubajoe

Things were going so well...

pensionpawn

Whilst export payment rate > gas import rate and export rates * my export > my old deemed payment, all is good. I'll be perfectly happy with any combination of rates that results in my annual energy bill equalling £0!

Toki

I'm due to get PV solar and battery installed in the coming month or so.

I've been trying to compare Octopus tariffs before the installation.  We currently use 2,000kWh per year.  This will increase later this year once we get a hybrid ASHP installed.  I'm on Octopus gas tracker currently and as long as the gas price is under the electricity price x SCOP then will continue using gas.  At a guess, electricity may increase to 3,000kWh per year.

Looking up PVGIS, I expect my solar panels to produce around 3,600kWh.  I'm weighing up either flux or a combination of tracker import and Outgoing fixed. 

By my calculations, I think I'll be better with Flux as even on winter cloudy day, I can import during the night to the battery, which will be a 9.5kWh Givenergy battery, enough for most of my usage, apart from any ASHP in the winter of course.

Obviously, tracker prices vary day by day, but I think even taking them to be broadly the same as Outgoing Fixed, 15p in and export for example, if I'm able to export during the peak periods during the summary particularly, it would still be better with Flux.  Does this match your guys expertise and experience with this tariff?

Appreciate there's a huge amount of variables, if I've missed anything out of my assumptions, just ask.  Thanks in advance.

powerful_Rogue

Toki said:

I'm due to get PV solar and battery installed in the coming month or so.

I've been trying to compare Octopus tariffs before the installation.  We currently use 2,000kWh per year.  This will increase later this year once we get a hybrid ASHP installed.  I'm on Octopus gas tracker currently and as long as the gas price is under the electricity price x SCOP then will continue using gas.  At a guess, electricity may increase to 3,000kWh per year.

Looking up PVGIS, I expect my solar panels to produce around 3,600kWh.  I'm weighing up either flux or a combination of tracker import and Outgoing fixed. 

By my calculations, I think I'll be better with Flux as even on winter cloudy day, I can import during the night to the battery, which will be a 9.5kWh Givenergy battery, enough for most of my usage, apart from any ASHP in the winter of course.

Obviously, tracker prices vary day by day, but I think even taking them to be broadly the same as Outgoing Fixed, 15p in and export for example, if I'm able to export during the peak periods during the summary particularly, it would still be better with Flux.  Does this match your guys expertise and experience with this tariff?

Appreciate there's a huge amount of variables, if I've missed anything out of my assumptions, just ask.  Thanks in advance.

You've missed out Octopus Cosy, might be better suited in the winter once you have your ASHP installed.

Although not much cheaper off peak then Octopus Flux (Just checked my area), you get 2 x 3 hours off peak slots a day 04:00 - 07:00 & 13:00 - 16:00.

Toki

powerful_Rogue said:

Toki said:

I'm due to get PV solar and battery installed in the coming month or so.

I've been trying to compare Octopus tariffs before the installation.  We currently use 2,000kWh per year.  This will increase later this year once we get a hybrid ASHP installed.  I'm on Octopus gas tracker currently and as long as the gas price is under the electricity price x SCOP then will continue using gas.  At a guess, electricity may increase to 3,000kWh per year.

Looking up PVGIS, I expect my solar panels to produce around 3,600kWh.  I'm weighing up either flux or a combination of tracker import and Outgoing fixed. 

By my calculations, I think I'll be better with Flux as even on winter cloudy day, I can import during the night to the battery, which will be a 9.5kWh Givenergy battery, enough for most of my usage, apart from any ASHP in the winter of course.

Obviously, tracker prices vary day by day, but I think even taking them to be broadly the same as Outgoing Fixed, 15p in and export for example, if I'm able to export during the peak periods during the summary particularly, it would still be better with Flux.  Does this match your guys expertise and experience with this tariff?

Appreciate there's a huge amount of variables, if I've missed anything out of my assumptions, just ask.  Thanks in advance.

You've missed out Octopus Cosy, might be better suited in the winter once you have your ASHP installed.

Although not much cheaper off peak then Octopus Flux (Just checked my area), you get 2 x 3 hours off peak slots a day 04:00 - 07:00 & 13:00 - 16:00.

Thanks, yes I should have said, I did look at this also but hard to quantify for me currently. So many variables! Gas prices, unknown ASHP usage. As long as gas is under 5p, then likely use more gas than elec. Even if on cosy, flux or elec tracker. Ased on current prices anyway. 

Screwdriva

Toki said:

I'm due to get PV solar and battery installed in the coming month or so.

I've been trying to compare Octopus tariffs before the installation.  We currently use 2,000kWh per year.  This will increase later this year once we get a hybrid ASHP installed. 

Curious about your logic for purchasing a battery as part of your PV system with such low consumption for the foreseeable? I can't improve upon what a fellow forum member shared recently when comparing the Flux tariff with a battery. 

Alnat1

My 4.8kw battery added 2.5k to my install. It should do 6,000 cycles, lets call that 15 years.

£2500 divided by 15 = £166.66. Divide that by 365 = 0.456, let's call it 47p a day cost.

I can save some of that by not having to import any electricity after the sun goes down, which for 5 months of the year will cover the peak 4-7 times, or when I boil my kettle first thing in the morning before the panels get properly going. I save a bit more with a TOU tariff to fill the battery up with cheaper electricity overnight in the darker gloomier days and  I can max out my Flux export during the 4-7 pm peak.

I don't think my battery will make me a fortune but I'm also pretty sure I will get back what I spent on it. I've have had some good fun playing with it too.

Ron-ski

I have the same opinion, each of my batteries are 14.5 kWh, and probably cost around £7k in total, I'm pretty sure I will get my money back (as things currently stand), they should do 6000 cycles, and even then still have 80% capacity left. One cycle a day is 16 years, and I export during the Flux period about 18 to 20 kWh. I charge the batteries off peak, then all excess is exported.