Hi all, I’m the maintainer of the openHAB Spot Price Optimizer module so I’m very familiar with dynamic tariffs. But I have zero experience with solar power. Problem statement I’m trying to calculate if we could get a decent payback for solar panels in our house. To achieve that, we would need to…

Okay I finished vibe-coding a simulation which works under the following assumptions and control strategy. System 11.3 kWp PV system (7.83 kWp East + 3.48 kWp West, or -67 / + 113 degrees to be exact) 10.2 kWh BYD battery (LFP) 8.17 % roof 14% loss Bundle includes Fronius Symo Gen24 10.0 plus + F…

@mstormi maybe my hesitation to push data to EVCC (which it normally fetches from the inverter) stems from the that it feels like very unintended way of using EVCC. If I let EVCC fetch all the data it wants from the inverter and only toggle different modes, that is effectively the same thing as the…

[image] masipila: I tried to interpret which EVCC API methods you are calling to feed the data to EVCC I don’t use the API for that. You can define custom variables in evcc.yaml and feed them via HTTP, I’m querying the openHAB API.

Hey guys, In the background I’ve been working on something using AI of course. I’ve been implementing an EMS binding and also contributing to the Connectorio OCPP binding in order to make the charger talk to openHAB. So far I have a working setup for my requirements for the moment. I really wanted…

the link doesn’t work, is your repo public?

Sometime i am amazed of how discourse handle some formats etc but it should work now and yes its public have a look and dont be kind say it straight :sweat_smile:

[image] mstormi: I don’t use the API for that. You can define custom variables in evcc.yaml and feed them via HTTP, I’m querying the openHAB API. Okay, this is now the part which I completely misundestood earlier. When you described that openHAB feeds EVCC, I read it as openHAB is the actor w…

Before I start to compare the different inverter / meter vendors and models, I was trying to compile a checklist of what do I actually need. If I put the EV charger to a parking lot for the time being and focus on the inverter / meter combo, am I missing something that I should add to my checklist? …

Bat holding is rare. But you can charge with zero W. min/max SoC is not important, you can start/stop charging which you see they’re reached. Trouble is, no vendor will be able to answer you if you ask him this. You’ll have to research the internet.

[image] mstormi: Bat holding is rare. But you can charge with zero W. I don’t quite follow. This would be a very typical scenario for me: I’m charging the EV from the grid when it’s cheap, there is no PV production. I do not want to drain the home battery to EV, I want to use the stored cap…

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Solar panels, dynamic tariffs, domestic hot water and EV charging

HolBaum5 (Holger Baum) June 7, 2026, 9:45am 86

For the sungrow Modbus registers see