[triplepoint217]

I like that analogy.

Batteries are kind of the RAM/cache in the system: - Big merchant batteries like Hornsdale are kind of like more distant ram RAM - Batteries co-located with renewables are kind of the local to core ram - UPS and similar are cache - Pumped hydro is probably Tape ;)

It feels like we might still be lacking a good/widely deployed HD/SSD equivalent in this space, hopefully new/emerging technologies (maybe the sodium chemistries others are mentioning) will be able to fill that in.

[Maxion]

I think in terms of the energy grid batteries are currently more like your L1 cache or similar. I.e. very expensive to have, and has specific requirements so you have little of it.

Hydro would be more like your RAM.