How to build a Home Assistant system on the RPI4 4B for energy monitoring?

home assistant How to build and how to install what I need to buy mainly energy and current controlling or find out how much power under RPI4 4B but I have SD 16GB and what I need to do in the house I have 230V current but from where and for how much is worth doing

But what do you want to monitor? The production from the panels? The consumption of the entire house? The consumption of individual appliances? Write down what your goal is, and only then select the tool to achieve it .

With the system because I wanted to find out but how and from where the equipment that I have to upload on the system on 24H/7 so that you after to work and find out how much power outlet etc pretty much all over the house so that you do not exceed under power maybe someone will tell or a professional will tell and what for the purpose of the installation system please remember that I have SD 16 memory card on RPI4 controlling under monitoring

Added after 8 [minutes]:


>>21056433
So I don't have a panel because I don't know but I really wanted to have you control how much of something there so that automatic I don't know it pays off