an arrangement in which a company owns its own supply chain , as opposed to a more typical arrange-ment in which each member of the supply chain produces a different product or (market-specific) service, and the products or services combine to meet a market need.
Can be a powerful market transformational force
Can be inflexible
These are like a steel company that owns the mill, the mines and the ships and railroads that move everything around. The transition to 100% RE will take a mix of market model approaches. Flexibility and forward force are what's needed.