Today I saw on Kickstarter a new energy storage system project that will compete against Bluetti and two others, uses solid state cells instead of LFP cells, holds much more energy with larger batteries, and is more expensive. Read more here:
https://www.kickstarter.com/projects/zendure/superbase-v-first-plug-and-play-home-energy-storage-system?ref=backer_just_launched_superbaseV_Sep2922&utm_medium=email-mgb&utm_source=bdev&utm_campaign=superbasev-09292022&utm_content=button&banner=invent-newsletter01&lid=kyv3097pua9h
Seems interesting but one must evaluate all the specifications before backing this project. The 240 VAC application is my main interest but I still believe that the Bluetti application is better.