Smart / AI Powered Home Battery charging with dynamic energy prices and pv forecast

[Raducanu (Marcel)]

Hello,
i am looking for a smart solution for smart charge my home battery based on dynamic energy prices, estimated pv production and estimated load.
I try to get into EMHASS, but the configuration is a total nightmare.
I have all the data in my HA, but the conditions are too complex to write automations.
Currently AI integration is all about LLM and Chat/Voice bots.
But isn’t home assistant about building smart homes? Are their any acivities into integrate AI / LLMs for more than chat/voice bots?
For example:

• Here is my Battery SoC
• Here is my energy prices for the next hours
• PV forecast
• History energy consumption

Based on these information a AI should be easy descide when charge the battery and to which SoC.

Thank you

[rrooggiieerr]

Have a look at

GitHub - TheFes/cheapest-energy-hours: Jinja macro to find the cheapest...

I use this to run my water heater, washing machine and dishwasher at the cheapest time of the day.

You might be interested in my feature request regarding forecasting

Add a standardised way to handle forecasting sensor data as part of HA core

HA has a solid way to store historic sensor data, using the recorder and long term statistics, but what about forecasting sensor data? I think it would be a great addition if there would be a standardised way to handle forecast throughout all of HA. Think about the UI showing graphs with forecasted energy prices, automations that can anticipate on forecasted precipitation Some added benefits if forecast would be part of HA: An automation could close the awning 5 minutes before it starts to rai…

[Raducanu (Marcel)]

Simple stuff like “charge my car during the cheapest period” is simple.
But whats about more complex stuff.
Situation yesterday night:
We had a rainy day in germany and i used a lot of home appliances in the evening.
So my home battery was down to 30% at 10pm. I would not made it through the night.
So their was a cheap phase from 1-3am.
With node-red-contrib-power-saver its easy to use these.
With a simple automation you can charge the battery in this time.
But will you charge it to 100% SoC?
Maybe tommorrow is enough sun so that you only have to charge to a certain SoC level until sunrise. But if their is not enough PV on the next day, you can charge up to 100%, right?
But what is if on the next evening you have even cheaper prices?
Then all of your automation gets really messy.

[vajdum]

Same Problem here but with weather forecast rather than prices:

• I want to manage a solar generator, which is used for power outages and to power the server.
• I know the usage rate per hour.
• I want it as full as able, around 90% max, but empty enough for the solar power antizipated the next day.
• Solar forecast is sometimes very bad, weather forecast (sunny, partly sunny) is more exact.
• Generator uses ~20w by itself if on, therefor i want to discharge the battery in morning/evening hours with low solar power rather then at night to save power and use low solar power hours.
• To prevent aging of battery in times with high solar power i dont want to discharge in high power hours.
• As there is no bypass, all energy has to go through the battery first. If its nearly full and i want to use the solar power i have to discharge it in high power hours.