Our 'BBB+' issuer credit rating (ICR) on Nevada Power Co. is derived from: Our 'bbb' anchor, based on our "strong" business risk and "significant" financial risk profile assessments for the company. Modifiers that have no impact on the rating outcome. The 'bbb' stand-alone credit profile (SACP) for Nevada Power, reflecting our view of its business risk and financial risk profiles; one notch weaker than that of the group credit profile (GCP) for ultimate parent holding company MidAmerican Energy Holdings Co. (MEHC), which is currently 'bbb+'. Under our group rating methodology, we consider Nevada Power to be a core subsidiary of the MEHC group, and therefore the ICR on Nevada Power is equal to the MEHC GCP. Regulated electric utility that