SUMITOMO solar PV with used LEAF battery storage
 

Yesterday morning there was a news piece on NHK TOKYO Japan, television ( PBS ).https://sumitomoelectric.com/press/2022/04/prs012
For the past 7-years, SUMITOMO Inc. has been operating a solar farm on one of the islands, and using second -hand battery packs from LEAFs for grid storage.
Their so satisfied with their results that they've acquired a larger parcel of land on which to expand operations.