The 81-page proposed decision [DOC] from CPUC Commissioner Carla J. Peterman breaks new ground in seeking to establish a regulatory regime in which utilities, third-party storage providers, and even customer-owned storage assets can play an integrated role. Those include rules that would limit utilities from owning more than 50 percent of the total amount of energy storage to be procured across the three "grid domains" of transmission, distribution, and customer-located storage.