Real estate is the largest of five pillars within Blackstone’s sprawling financial empire, and Blackstone has the largest real estate private-equity business in the world.

Nearly one-third of Blackstone’s $310bn or so of assets under management are tied up in real estate, giving it a “vast assortment” of C&I properties, Vivint Solar says.

The Utah-based company -- which is majority owned by Blackstone -- will "collaborate with Blackstone to provide clean, efficient solar energy to Blackstone's portfolio of commercial and industrial properties".

Generally,