One of the settings options is "Automatically pre-select import slots for prices (in pence) below the threshold specified here. Slots meeting the price threshold criteria will be selected regardless of your Agile charge window From and To times."

Could there be an option to de-select/ignore settings for slots OVER a price threshold? e.g. in my case I auto pre-select under 13.5p but I would like the auto pre-select to avoid all over (say) 19p

    At the moment I make manual adjustments to slots every day. Not a huge task - done in a few clicks.
    But would be great to have automation closer to final usage so that its less important to manually adjust and can be forgotten

      Tima441 what are your typical adjustments you make and based on what?

          admin forgive me if it's excessive info but I'll describe usage.

          Userid: tepid-topi
          I have GivEnergy Gen1 kit
          3 x 8.2kw batteries
          Hy5.0 inverter
          with 16kw LG ashp, ev, 8kw pv solar

          Currently on Octopus Agile imports with Fixed exports. Seems to be working very well but need to maximise battery efficiency and avoid Agile peak rates.

          Ashp is using weather compensation and most efficient if used 24x7. But in winter will setback thermostat in peak periods to reduce usage in that period.

          Charging batteries from solar and cheap grid slots.

          Background:

          1. Inverter max charge/discharge is 2.6kwh which means harder to maximise use of cheap Agile slots. If batteries are empty (not normally the case) they take around 10 hours to fully charge. So I try to top up from cheap slots whenever available day or night.

          2. Ashp is large so at times may draw 5kw or more.

          3. ASHP is 2020 model and will not integrate with Home Assistant afaik

          Wonderwatt usage:

          1. I've been on Agile only since March this year and using WonderWatt a few months. I find Wonderwatt easy to use but so far need to manually adjust every day - perhaps my fault in settings? I'm using 20 slots across 3 charge windows per screenshot with override to Automatically pre-select import slots below 13.5p (partly based on PV solar fixed exports are 15p so should only use to charge batteries when grid imports are above approx 13.5p)

          2. My adjustments take into account the battery SOC and charge rate 2.6kwh as well as a look at likely weather and demand in the home ... so i choose cheapest slots

          3. to maintain 100% SOC

          4. to maximise pv solar exports at 15p

          5. especially charging and using cheapest slots by price e.g. I see batteries are likely at 70% so i need around 8kw but 2.6kwh charge rate means that needs at least 3 hours (6 slots)

          6. typically removing all preselected slots over 13.5p in summer (as I'll hopefully charge from solar)

          7. in winter I get very little solar relative to usage. So likely will keep topping up batteries all day and night. Choosing cheapest slots as much as possible with general objective sub 19p

          Obviously the last penny of cost is not particularly important in overall picture so automation might not be able to match my picks that have elements of weather forecasting and experience - unless you can go further with AI or predictive charging! But I think simple automation should get "close enough" that I might not need to tweak daily?

          I guess my thoughts are that

          1. Using charging windows is useful
          2. Ideally recognising SOC and therefore only taking sufficient cheapest slots to maintain target. (As it is slots might be taken by WW that fill batteries at 13.5p or more .. even if negative rates available an hour or 2 later)
          3. Cheapest slots under preselected 13.5p priority is good base
          4. But avoiding charging entirely over a preselected max would be better for me
          5. perhaps I would never auto charge over 19p
          6. that might mean preselected slots actually used are far below my 20 slots. Perhaps you would have a min and max number of slots on each charge window? In my case using max if under 13.5p...
          7. some users might prefer that max to be linked to SOC? Not sure I would use that. e.g. do not charge over 19p unless SOC under a limit (say 40%) and use best slots over 19p to bring back SOC to a limit (say 70%)

          Sorry about long reply! Hope it helps or happy to follow further.

            Fyi
            Interesting to see that imports so far in 2024 to 31st Aug
            5608kwh @ ave 13.06p from 1st Jan
            Switched to Octopus Agile from 23rd Mar (Tracker prior).

            Agile only is ave just 10.22p for 2458kwh from 23 Mar. Usage includes EV, hot tub for a month, some imports at cheapest rates to fill batteries etc.

            Tracker 1st Jan to 22nd Mar 2818kwh @ 16.15p

            Exports 2432 @ 15p

            Hopefully coming winter can keep under Tracker rates by good use of batteries as well as a bit of setback in peak periods

            Ave import cost 8.08p in Aug for 331kwh
            Ashp for hot water and EV etc
            Export 438kwh @ 15p

            2023 imports were 8304kwh @ 22.2p on Tracker (not bad vs standard rates

            Imports ytd 5608kwh @ 13.06p = £732.31
            Exports ytd 2432kwh @ 15p = £364.80
            Net ytd cost = £367.51

            Tima441 Right, you basically want a price threshold selection for the charge window.

            You could then configure that to below 19p, and only x number of slots below 19p would be selected. If no sub 19p slots available you may then end up with no agile slots at all.

            Is that close to what you are suggesting?

                admin yes I accept no slots at all if prices are over the threshold. Maybe in my example

                1. Below 13.5p I would take all slots.
                2. But if practical that would ideally have a prioritising option so that WW recognised SOC of batteries and grabbed the cheapest slots?
                3. 13.5p to 19p it would take the number of slots I've chosen in the schedule. Again ideally recognising SOC to grab cheapest slots and fill batteries to target SOC.
                4. Above 19p no slots taken regardless of SOC or how many slots scheduled.

                    Tima441 But if practical that would ideally have a prioritising option so that WW recognised SOC of batteries and grabbed the cheapest slots?

                    You can achieve this already right? You would simply configure the SOC less than value for your charge window, which will only charge the specific slots where the SOC is lower than your specified percentage, and where the rate would be below 19p say.

                      I mean that ....say my SOC is currently 70%

                      • and needs 7.5kw to get to 100%
                      • at charge rate 2.5kwh
                      • then I need 6 slots

                      My charge schedule might allow 12 slots. As it is WW will take the 12 slots configured but of course actual charging will be the first 6 and not necessarily the cheapest 6.

                      Ideally I would like WW to select the 6 cheapest slots

                      Hope I've explained!