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Supplier
Customer
DSU
TSC
PIMB+: DSU energy payments plus any other TSC cashflows.
PSUPP-: Saving in supplier charges shared with DSU.
PSUPP: Saving in supplier charges.
No saving in supplier’s SEM wholesale purchase costs, as supplier’s imbalance is corrected to remove effect of demand reduction.
Figure 3: Option 3 (DSU Energy Payments with Supplier Compensation)