Which tarrif are most UK based Growatt systems using?

Frosty148

A couple of newbie questions if that’s ok ….
Was hoping that Octopus Agile could be used with Growatt but doesn’t seem to be the case 😕 so what tariff are you guys using with wonderwatt?
Do people swap tariffs at different times of the year for better efficiency?
Thanks - I have a lot to learn

Kevin

Frosty148 Not sure why you say Agile can't be used with Growatt?
Been using Agile with outgoing Octopus for almost a year. I know some that swapped to Octopus cosy over the winter but I stuck it out with Agile for the whole winter.

Frosty148

Sorry, have confused Agile with Intelligent Octopus Flux … this is sort of my issue currently, there seem to be a fair number of tariff options with Octopus and trying to work out the various pros and cons of each is not easy.
Following some further research on their website this afternoon, it’s become a bit clearer and seems that for a standard solar/ battery install (with no heat pump or EV, and a non intelligent supported battery, Growatt) … the options are below (at least with Octopus)

Frosty148

I have signed up for Flux (standard), but thinking that Agile Import with Outgoing Agile Export may be the better option 🤔

johalareewi

Frosty148 Agile Import with Outgoing Agile Export may be the better option

On the Octopus Agile portal, you can enter your Octopus details and get a comparison of your current tarif vs Agile to see what the difference would have been. https://agile.octopushome.net/dashboard

Frosty148

johalareewi thanks … I wasn’t aware of this … I’ll take a look

Frosty148

Well that was unexpected ... I only have 4 months of data to check (between Oct and Jan) before I had solar/ battery fitted and was previously on a fixed tariff (approx 23.6p/kwh) but wasn't expecting to see it would have been 10% worse on Agile ... however, just guessing but might they be some reasons for this?
e.g.
It was four winter months so the Agile rates might be higher than my overall fixed rate which is an average across the whole year?
My used was not constrained in anyway, so I suspect I was using power at peak times, when I hopefully would be using my battery with my new system?
It doesn't take account of me time shifting that peak import cost, buying cheaper say overnight and consuming during the day?
The possibility of exporting some power (although not likely during these months)?
Does this sound plausible?
Is there an issue using Agile over the winter months, as it seems some people switch to an alternative tariff during the winter - does Octopus limit how many times you can change smart tariffs?
Thanks