Tesla Energy also has large scale Powerpack modules available for utility scale and commercial energy storage. The 100kWh Powerpack (ref image) is simply made up of multiple smaller battery units and available in a modular system which can be easily linked together to create several MWh of energy storage. With each Powerpack costing around AU$40K this is a breakthrough price for large scale storage.
Recycling
Recycling the complex Lithium based batteries used in the powerwall poses several challenges compared to common lead-acid batteries which are easily recycled, although much research and development is underway. A recent breakthrough by American Manganese Inc or “AMI” has shown very good results in extracting the raw materials from Lithium NMC batteries for re-use. The Lithium NMC batteries used in the Powerwall are difficult to recycle but Tesla claim it will be feasible once the volume increases; since most Tesla lithium batteries are still in use and are expected to last 10+ years there are simply not enough used batteries available yet to refine the recycling process.
https://www.cleanenergyreviews.info/blog/tesla-powerwall-2-solar-battery-review