The lease payments do not make it to SCTY's balance sheet, they're securitized and sold as SolarBonds, a financial beast of their own, with no secondary market, no default protection and no rating from a ratings agency.
I've currently invested in Solar Bonds, and am comfortable with the risks they present. I don't need a secondary market and I'm not worried about vast amounts of people no longer paying their electric bill.
> I'm not worried about vast amounts of people no longer paying their electric bill
No one was worried about vast amounts of people no longer paying their subprime mortgages either. Not saying your investment strategy is wrong, but "predictions are difficult, especially about the future".
If the lease payments backing the bond stop, Solar City will attempt to rectify the situation, but it's not responsible for the remainder of the debt in any fashion. This specific aspect of operation is similar to other online servicers, like LendingClub, which would not compensate you in the event of a peer-to-peer loan default.
• your inability to initiate bankruptcy proceedings against SolarCity;
• the lack of certain “customary” investor protective covenants in the indenture;
• your inability to require us to repurchase the Solar Bonds upon a change of control of SolarCity;
• lack of cross-default provisions in the indenture with respect to our other debt; and
• the lack of an underwriter to conduct third party due diligence and other types of “gatekeeper” actions typically taken by an underwriter in an underwritten public offering.