The U.S. residential solar market is growing rapidly and undergoing a major transformation at the same time. A new acquisition, partnership, or project fund seems to be announced every week.

But what is the underlying trend here? For a while, many of us simply boiled it down to industry consolidation. The most recent developments, however, point to something even more specific: vertical integration.

via Greentech Media: Headlines – Is the SolarCity Model the Only Way to Scale Residential Solar?.