Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Is there any limit to the amount of times you can switch tariffs with Octopus during a year?
I don't imagine anyone would to use this tariff during the summer, but if you can switch between tariffs depending on the time of year I can see this being very attractive, particularly for those with battery storage which could be topped up to get you through the peak period.
@squeakysim off the top of my head there is no charge to swap away. But I think there is a minimum 90 days? I am with octopus so I can find out easily enough
I was looking at the Agile Octopus tariff. With underfloor heating it should be possible to get the slab nice and toasty during the cheap overnight period, which sometimes actually pays you as much as 5p/kWh to use power in the wee hours! Octopus Agile Southern England - Energy Stats UK (energy-stats.uk)
The only problem is you only know the prices a day ahead.
@brooster I think that's for fairly obvious reasons. That said, if you have batteries, there should be no need for Go over the summer anyway. I rarely charge anything into my batteries in the summer
Posted by: @broosterI’m also on Agile outgoing for surplus solar in summer and Go is not compatible with the outgoing tariff!!!
What are the allowable combinations with the outgoing tariff? Or is there a consensus that you're better off with Agile?
@squeakysim my understanding is that you cant have a cheap ToU tariff and outgoing e.g. you cant have Go or intelligent etc. As it would mean people could charge batteries for cheap and simply sell back to the grid at higher rates.
Just joined Cosy Octopus tariff. Live from 12 midnight.
We don't have solar or an EV.
Going to see how this goes, we were with shell energy price guarantee tariff before we swapped to octopus
These are our settings.
Going going to see if it saves us, we can change in 30 days if not. Annoying that the FTC can only set 4 temp changes I would've liked set backs rather than off, so freeze stat could still be enabled, so will have to keep an eye on weather if goes below 3c, as we don't have enough anti freeze in the system according to the Mitsubishi engineer who serviced our ashp.
Will monitor and feedback
@sand I found that if you use the app to set the timer, you can have unlimited(?) temperature changes. You can also change between WC/Auto Adapt/Flow rate which is very useful. For example, when electric is cheap you can switch to a high flow rate, then back to WC when its normal rate.
250sqm house. 30kWh Sunsynk/Pylontech battery system. 14kWp solar. Ecodan 14kW. BMW iX.
Thanks for that.
All thru the summer the timer worked in the app for us brilliantly, set to room temp.
Then we added a further remote in the autum and changed to WC and app timer stopped working and I don't understand why, it also doesn't work in auto adaption mode either.
We have normal WiFi and 5g and 2 tp link boosts and the melcloud app does say it needs a stable WiFi so could understand if it had never worked, no settings have been changed on theWiFi.
I'm hopefully moving to Cosy, just having compatibility issues with my export tariff apparently. I was moving to Eco7, but the recent cold snap highlighted that I would need way more battery capacity than I have currently and the cost would probably not make it worthwhile. So I'm really pleased that there is an option for two cheaper periods in the day to charge up the batteries. The expensive period is similar to the saving sessions that I recently took part in and they were very doable even when it was cold.
Mitsubishi Ecodan 8.5kW
4.4kW Solar PV
5.2 kWh Battery Storage
1983 build, 300mm loft insulation, cavity wall insulation (beads)
- 27 Forums
- 2,800 Topics
- 66.3 K Posts
- 3,090 Online
- 7,207 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
One solution is a heat-pump with 'Enhanced Vapor Inject...
By Temperature_Gradient , 10 minutes ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
Unfortunately our floors our concrete so not possibilit...
By seaviews , 27 minutes ago
-
RE: How will removing the standing charge on gas bills benefit heat pumps?
The BUS grant funding for 2026/27 will run out at the c...
By Rob of York , 10 hours ago
-
RE: New Build 3 Phase or 1Phase
Not so any more.... 1: It's now the...
By Transparent , 23 hours ago
-
@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 2 days ago
-
RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 2 days ago
-
RE: How much of your renewable and home setup would still work if the internet went down?
Yes I actually have a copy of a tool that whenever a ce...
By EtchedPixels , 2 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
By Indevolt Tech , 3 days ago
-
RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 3 days ago
-
@transparent we’re still running a secure version of PH...
By Mars , 4 days ago
-
RE: How quickly would you want/expect heat recovery to take from setback?
Much longer than that here. The heating isn't even on. ...
By bobflux , 4 days ago
-
RE: Passiv Smart Thermostat - Help & Forum Support
Obviously the weather is changeable but there's a defin...
By Singlespeed , 4 days ago
-
RE: Forum updates, announcements & issues
Get the Renewable Heating Hub heads-up on WhatsApp. I...
By Mars , 4 days ago
-
RE: Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
@editor I pointed out to the one of the Fuse execs that...
By dansus , 4 days ago






