Replies: 11 comments
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We could probably expose the max/min currents but not another mode. |
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I thought the easiest way might be to just disable evcc per mode/button. Because thats what I do right now by stopping the service. But this is not really handy. |
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You can already set the mode to off- why isn't that sufficient? |
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I just tested this (again). It doesn't work because evcc finds an out of sync state and stops the charging. Maybe it would be a possibility to set the behavior of "Off" in the yaml configuration. Default as it is, and a new mode which stops the charging when button pressed but stop monitoring the charger state until mode is switched again. |
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Just to be clear, disabling the charger with „stop“ works for your, but you want to get rid of the „out of sync“ message that occurred when you manually enable the charger through its own app again, right? Afaik the message is just a warning that has no negative effect and evcc does not try to disable your charger again, right? |
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No, thats not the case. Like I said: "evcc finds an out of sync state and stops the charging". It's not just the message, ecvv tries to correct the out of sync state. |
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Correct, when EVCC runs it is meant to be the sole entity that manages the charging process and hence will stop charging if it is set to off. What you are asking for is not „Off“, you want to „DISABLE“ EVCC overall. For that you could setup your own system that quits/starts the EVCC process/docker container/… Regarding your assumption that losses are bigger with higher currents: Did you measure this and if so how? What EV is this? In all my measurements and to my knowledge this is not commonly correct. Regarding EVCC being slow in regulating currents: what is your interval in the configuration? Why is this a problem? Does your household grid connection not cover the load? Regulating PV currents will always and with any system not be perfect. The same would be true if a cloud will come over your house for some seconds once in a while and you PV generation will drop. This feels like a desire for an optimization that is not possible. Regarding limiting the max currents: Right now this is a static configuration as we don‘t offer a web front end for configuration. The idea is to provide this in someday in the future. But this will also have other implications as with other EVs and chargers the EV will provide the possible min and max currents, depending on which EV is connected. So the desire here to limit the max current is something different to what the EV-charger-system is capable off. There will also be a need for other limits, e.g. if the electrical installation requires limiting the max power. This seems to be rather in that direction, but we need to think much more about this and its side effects. Overall the ticket system doesn‘t match the state this discussion or feature wish. I would recommend to move this to the discussions section under „ideas“. Right now I recommend you setup some personal system to disable/enable the EVCC process overall and use the chargers web interface do set whatever you want. EVCC is not designed and meant for such a need. Maybe other systems are a better fit? |
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First of all, don’t get me wrong. I’m totally happy with evcc and I really appreciate the work you guys put into it. |
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Don't get me wrong either, we appreciate the feedback. I would recommend to start an Idea discussion in the forum here on GitHub, so others can more easily weight in if they see similar needs. As you can see, we are not convinced yet that such a feature is really needed. Also because it is not clear why you have those use cases. They currently provide some assumptions (which are not verified) and some just don't make sense to us right now. See my questions. Hence more discussions would be required. |
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I think I have three more than valid use cases concerning my own situation:
I don’t want to argue about these use cases anymore, but these are the three that apply for my personal situation the most. Maybe it’s just me, but I don’t think so. And I didn’t wanted to start a discussion at all, I just wanted to make a suggestion. So I’ll leave it as it is here and if you decide to implement this I’ll be very happy, if not I’ll find a solution too (probably removing the monitoring from the exiting Off-Mode and creating a local build from time to time because this seems to fit my needs the most) |
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Closing this here as we don't get any further on this. Just some comments:
I don't get why you don't want to discuss this. Just throwing something over the fence isn't how things usually work. And as we are willing to interact and understand things, discussion is the only way. The only other option is to close the ticket. :( |
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I’ve seen similar issues/requests so this one might be duplicated, although I went to the whole list and did not find exactly the same thing.
I’d like to see an additional mode, maybe called ‘manual’ or maybe even ‘off’ which let me set the current by hand without regulation (‘manual’) or let me use the original App/Interface off my charger (‘off’) – in my case go-eCharger – to set the charger current.
I see a few use cases for this, one is the 70% cut off in Germany (I had a request for such a feature as well) or wanting to charger slow in Summer when enough power is available all day long to avoid high currents and therefore losses. Another use case is when the stove/oven is used in summer. It is switching really fast and often and the evcc if often to slow just for this scenario. E. g. I have 5kW Power available, the stove switches between 0W and 3kW. So, during this period (e. g. 1h) I’d like to be able to set my charger to 2kW fixed instead of off or taking power from the grid.
It’s also usefull to speed up the Min(+PV) mode a little if necessary without pulling e. g. 7kW in Sofort-Mode.
One of the modes suggested above would enable me (and other of course) to achieve all of this and would add a high flexibility. Preferred would be the manual mode because the evcc webinterface would be enough and no other app would be required. But the regulation-off mode where no set values go to the charger from evcc and I could use the go-e app for setting the current would be fine as well.
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