Recent content by sparkypete

Update here for Powerwall users with a couple of bug fixes and damping of the green energy amps. When monitoring mine it was suffering from slight delays with the powerwall charging so it was switching between 9A and 6A every 10 seconds. This is fixed by altering the green amps offered by a max...

Mine does it via the API. I don't think there's anything in the code to do it any other way.

Try this. I was able to repat the problem. It was 7pm here. If I changed my scheduled time that was 00:00 to 07:00 so that it was 16:00 to 07:00 it immediately started the car charging which is not what we want. So it's dark here and so was going from the minimum 6A offered to the charger up to...

Try loggin into the pi with PUTTY and type screen -r twcmanager That will show you the full trace of debug messages. It may be that for some reason the command to stop the car charging did not work. Also check your schedule from the web page. Remember the green energy tracking will not...

Hi Icepicknz, Yes I am getting the same problem where it stops polling for green energy after going through the night. I don't think it's a bug I've introduced but I'm adding some extra logging so I'll track it down and report back once I have a fix. I'll also build in a try...catch so if the...

Hi Nick, My changes were for a Powerwall so you are probably better off using the main TWCManager code. You'll need to change the check-green-energy code to grab details of the usage from your setup.

Hi Icepicknz, Great that someone the other side of the world can benefit from this too. The forum is great. Yes - I output the main parameters like the grid export amps, current charge amps and calculated green energy as part of the debug level logging so you can see what it's calculating. It...

I found that because solar amps fluctuates frequently, the car was not starting because TWCManager won't start the car if the desired amps changes within a minute. I have build something in to hold the green amps request steady until we get the car to start charging unless it drops below the 6A...

Amendment to above - adding in power currently charging Powerwall when it reaches the desired limit.

Hi everyone, I thought I'd share my mods to TWCManager for Powerwall users. Firstly, many thanks to CDragon for this. Basically I wanted to use Excess solar to charge the car but only when the Powerwall couldn't store it. As the Powerwall can charge at lower amps than the car, if you think...

When I ordered my Model S I couldn't justify the extra price of Autopilot for the few times I'd find it useful (I live in the country with windy roads and few road markings). I see that the Nissan Leaf now includes their version, ProPilot, for just £400 (aroung $500) and it does all that I'd...

Thanks for the quick update. Sounds cool. If I find time to play with it I'll update you. I'm looking to develop code so the TWC appears as a discoverable device via SSDP. The plan is to then develop a hub app that finds devices in the home like WEMO switches etc and then allow configuration of...

@widodh - what state is the Python script in? Is the version on GitHub working?

I think this is all possible with a bit of coding and by using tricking the Tesla Wall Charger like in the interesting TWCManager example GitHub - cdragon/TWCManager: Control power delivered by a Tesla Wall Charger using two wires screwed into its RS-485 terminals. For my setup, I want to...

Done some research on this trying to see how I can maxmise use of solar while ensuring I still have enough charge in the Powerwall and car by a set time of day. It seems you can't at the moment unless you use an OpenEVSE charger instead and use code to control the charge rate. Some have modded...