For the past six months, I have had a Homewizard plugin home battery to see if it is any good and because Homewizard has a good integration with HA. Since I am pleased with it, I want to exchange my Homewizard for a Marstek Venus E battery; it costs the same price but has twice the capacity and, from what I hear, more options than the Homewizard. However, I noticed that while various HACS integrations exist, there is no official integration. Does anyone know if that will be available anytime soon, and if not, which Marstek HACS integration would you recommend?
A core integration would most likely be from whomever feels like porting their current GitHub integration to core.
It is seldom that the HA staff port something in themselves, although it does happen, it is more likely that the community contributes something that is then shaped with the help of staff to work directly with core.
What I am saying is find the best one for your use case, use it, help with issues and suggestions, and support the author to try to move it to core is how this is generally done.
There is a place here to suggest/request new integrations that the community looks to for picking projects that people need.
Hi, i have a Marstek Venus C (2.56kWh), but as far as i know the firmware of the battery is the same or at least very similar. I'm using the battery since end of March. To integrate the battery into home assistant i'm using this HACS integration Marstek Venus Modbus. I also tested the Marstek local API integration, but found it to be unreliable and switched back to the integration via modbus. You will need a RS485 adapter to connect the battery to the HA server like this one RS485 to WIFI converter or similar for Ethernet.
Here is a link to a dutch website with a lot of information i used also: https://gathering.tweakers.net/forum/list_messages/2282240