NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) assigns a preliminary rating to one note class issued by Sunrun Athena Issuer 2018-1, LLC. The transaction is secured by the equity interests of the managing members in the related Project Companies that in the aggregate, own a portfolio of 34,493 leases and power purchase agreements (“PPA”) associated with residential solar photovoltaic installations (“PV Systems”). Cash flow related to the portfolio is net of operations and maintenanc