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Recent content by vanhtu1987

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    Battery consumption high initially and then normalise

    I use ScanMyTesla and can confirm that on a normal day i.e., not too hot/cold, all of the extra energy comes from cabin conditioning. If I configure the car for no AC/heater then the power usage stays the same whether on the first mile or the 100th. Short trips tend to include more starts/stops...
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    DIY solution for charging with excess solar without Zappi/Hypervolt

    Yes, I think the portable heat pumps work perfectly for that type of windows. Ours open outwards so there's no easy way to keep it open without a lot of air leakage. 48 panels and MVHR?. I'm, like, not jealous at all 🥲 Agreed, I think until V2H becomes more commonplace or 50kWh storage...
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    DIY solution for charging with excess solar without Zappi/Hypervolt

    I've attached the YAML files for HA in my previous post :) . One of my colleagues has a GivEnergy battery system installed and whilst it works, it does not respond quickly enough to sudden changes in the flow of energy between the household and the grid. For many smart heaters that power on and...
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    DIY solution for charging with excess solar without Zappi/Hypervolt

    Yes, we haven't had one installed yet but this would work well enough to absorb the excess once the battery is fully charged. The gradual ramping down of charge amp before it's stopped completely will cost perhaps 40W, which should be easy to recoup. As far as I understand, the Zappi has 2...
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    DIY solution for charging with excess solar without Zappi/Hypervolt

    The nice thing about HA is that it already has the necessary integration for these devices, so what's left is mostly the programming. Here are some potentially relevant information for the automations I set up for the car. This monitors the excess power to start charging the car at a minimum...
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    DIY solution for charging with excess solar without Zappi/Hypervolt

    I recently acquired a Shelly EM Shelly EM + 120A Clamp | Shelly Store UK | Smart Home Automation to make use of our excess solar, as it's that time of the year again. Using the data I got from it with the help from Home Assistant Home Assistant . I used a TP-Link Tapo P110 smart socket to turn...
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    Intelligent Octopus's integration with smart chargers (Ohme Home Pro)

    @teotutulan the following setting should work if you want charger integration (what you have is car API integration which is working as expected): - No charging schedule in the car i.e., it shall charge immediately once plugged in if power is available - One active schedule in the charger...
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    Intelligent Octopus's integration with smart chargers (Ohme Home Pro)

    @Big Dunc It seems that Zappi supports switching charging mode on a schedule https://support.myenergi.com/hc/en-gb/articles/360020720298-zappi-charging-modes so it should do exactly what you want: - The Octopus app is set up to integrate with Tesla - The Zappi is set up to enable Boost mode...
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    Intelligent Octopus's integration with smart chargers (Ohme Home Pro)

    It seems odd that the Zappi is unable to switch between Fast and Eco modes automatically on a schedule. Surely Zappi doesn't expect users to toggle between the modes daily?.
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    Intelligent Octopus's integration with smart chargers (Ohme Home Pro)

    Would you not be able to switch charging mode to using excess solar only during the day and enable bump charging in the Octopus app?. Since we're bump charging that would be billed at peak rates, it's fair game. In this scenario, the car would be instructed to start charging throughout the day...
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    Intelligent Octopus's integration with smart chargers (Ohme Home Pro)

    @Big Dunc The problem you're having could be solved with proper integration between the solar panel system and the car. During the day, you could set the Max charging schedule but the car could only take as much electricity as it needs to balance the excess generation. This is supported by the...
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    Intelligent Octopus's integration with smart chargers (Ohme Home Pro)

    Yes, there's currently no integration between these systems so you'll need to DIY one, if you can extract the Ohme charging schedule. It is possible and is being used by some people. This is only an issue with car API integration and not Ohme charger, since it is an Octopus' product: the...
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    Intelligent Octopus's integration with smart chargers (Ohme Home Pro)

    Octopus says that any smart charging would be billed at off-peak rates. My bill is yet to come till 10 days later, but the figures shown in the Ohme app match expectation (all charging & preconditioning were calculated at off-peak rates).
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    Intelligent Octopus's integration with smart chargers (Ohme Home Pro)

    @Big Dunc Intelligent Octopus is meant to balance the grid load so charging schedule is suppose to vary daily (even hourly). It's also quite common to see charging sessions that fall outside of the off-peak hours too. Having finished setting it up using the Ohme Home Pro (no API integration)...
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    Intelligent Octopus's integration with smart chargers (Ohme Home Pro)

    Thanks @browellm , I'll post there as well.