Hi Daan,
Congratulations on your new home! It sounds exciting.
There are a number of topics/posts in this forum. But it can be a little challenging to get started.
To start, here are a few questions:
- How to you plan to measure solar generation, grid consumption, and consumption by your various loads? There are various hardware solutions, but most people here would recommend local control of your sensors (as opposed to some service that uses the web).
- Do you have experience with Home Assistant? If so, are you a beginner, or perhaps a power user?
- What company will supply your energy? (Some have web interfaces where you can pull pricing data etc.) Cost is a major driver for many (but not all) energy automations.
- Can you write down your goals for a control system? Is there a penalty for exporting power? (I wonder if this is why you are thinking about crypto miners as a load for excess solar generation.)
Running a single load to consume excess power can be quite simple, as long as you can throttle or turn off this load when needed. But it gets complicated when there are multiple loads to manage. I’ve written my own automations for controlling two heat pumps, and it was quite a challenge for me. Here are a couple of suggestions for more complex situations.
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PV / Solar Excess Optimizer This is a BluePrint that seems to be geared toward general users of Home Assistant. There are some minor bugs and issues reported in the posts.
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EMHASS: An Energy Management for Home Assistant This is a powerful Add-On for HA that predicts when it will be best to run various loads based on history, forecast, and requirements, and of course you can use the forecast to run your home. It is for Power Users - I’ve tried to implement it myself and eventually crashed my system. But others have good success with it.
I hope this is helpful.