Not working on it yet but can a small box sitting on your counter do LLM, TTS all local with maybe outbound queries to the internet.
First iteration may be box is rpi based and local LLM runs in another room on beefier machine (or even before that just get it working with a cloud Llama).
What would make this cool is to use MemGPT for memory so you can talk to it Monday and then it remembers what you said Friday.
What happens if no one takes the power (not one solar installation but lets assume lots of surplus power). Does it screw up the grid? Increase voltage/frequency?
If I were to deliver you 1000 gallons of milk that expires in 10 minutes*, would you pay me or want to charge me for that priviledge. Assume you have enough milk already.
* (< 1 millisecond for electricity but hey for the milk analogy say 10 minutes).