Would love one. Tried hard to achieve it too, but swmbo. 
Slightly missing the point, if you are on an EV overnight tariff (like a lot of current heat pump owners I would think) the unit prices for that time are a lot lower than 15p.
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Plus, you may well already have solar panels and a battery.
Installation mostly complete, just commisioning of the panels and batteries tomorrow! My job is to sort out a new Octopus tarrif. From the look of it, I think Octopus Go with the Outgoing Fixed ‘Lite’ is going to be the best option!
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Quite an installation, that 
14.4kW system with 2x 10kWh batteries
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You wouldn’t want to move from there for a long while if ever
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That’s the plan (and the idea for moving first and then starting a family).
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chonker
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Do it once, do it right. Is that still on 1 phase?
Hoops with that sort of generation capability I would get on full Outgoing fixed, 15p export. Swap to an EVSE that supports IOG if necessary.
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Yes, all single phase.
Thanks for the advice , only recently signed up to Octopus so my job for tomorrow is to look through in detail.
First full day and exported 30kWh back into the grid, still waiting for the engineer to come back tomorrow to configure the SolarEdge app and sort out the Zappi to talk to the batteries/solar with the required CT clamps (I gather).
System went live yesterday around 15:30 so assume the lack of any export then, and this morning was charging up the 20kWh of batteries. Already exported more today than we have consumed from the grid on Monday & Tuesday combined so that’s pretty promising just from the basic data and its been mostly on/off cloudy & sun today so not perfect.
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Presumably the people in the flatlands and concrete cow city know about this already? No OX or CV postcodes yet, so Western Power need to get a shift on.
Got the SolarEdge app up and running, working OK but a few issues:
It’s not showing the exported amount back to the grid, as of now, it’s saying generation total was 61.5kWh and Consumption was 58.4kWh which is not right. I think it’s rolling in the exported amount into the whole Consumption figure and it’s not showing up in the summary graphs and data…
Exported - 32.4kWh (Checking via the Zappi app)
Car Charging - 14.3kWh (Checking via the Zappi app)
Home Battery Charging - 8.7kWh (Checking via the SolarEdge app)
Home use - 3.4kWh (as the remaining amount)
From the Android App
Via the Web App
Also the Zappi charger is draining the home battery when charging even on Eco++ mode to make up the shortfall from solar (as I was charging this morning when it was overcast). Not a major issue but thought it would only charge from the excess solar in that mode.
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Zappi will depend on the battery having a CT on it (is it AC coupled?) and the battery settings in the menu adjusted if needed. It will also depend on your threshold percentage in the settings.
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The solar engineers have agreed to install a Myenergi CT clamp for the Zappi so assume that’s going on the battery?? They have not confirmed or re-attended yet. I did play around with the percentage settings but did no seem to make much difference.
