Settlement Price means the official closing level of the relevant Underlying Reference;
Underlying Reference Closing Price Value means, in respect of a SPS Valuation Date, the Closing Price in respect of such day.
Congestion Price means the congestion component of the Locational Marginal Price, which is the effect on transmission congestion costs (whether positive or negative) associated with increasing the output of a generation resource or decreasing the consumption by a Demand Resource, based on the effect of increased generation from or consumption by the resource on transmission line loadings, calculated as specified in Operating Agreement, Schedule 1, section 2, and the parallel provisions of Tariff, Attachment K-Appendix.
Settlement Price Date means the Valuation Date. "Valuation Date" means the Redemption Valuation Date.
Shadow Price means the marginal value of relieving a particular constraint which is determined by the reduction in system cost that would result from an incremental relaxation of that constraint.