I have a couple of automations which control some computers and devices in my house depending on the live energy prices, and solar output. The automations are starting to get a bit all over the place as I have 10+ devices dependent on these criteria.
Is there a simple automation that I can group the devices into, and turn them on/off depending on available excess solar energy?
Most likely yes. What is the part where you are struggling? What are the rules for your automation?
If the criteria is everywhere the same, just add multiple entities in the service calls.
And what does the title of your post have to do with anything?