This column is required for, and only used by, Constraint Types = Emission or Emission Rate. The Emission Pricing column is used to specify the input price for the emission by referencing the Price column in the Emission Price table or the Price column in the Supply Curve table. If no input emission price is desired, the column should reference an Emission Price ID that has $0 emission prices. This allows the ability both to apply an already known emission price as well as a global constraint (which will give an additional emission price in the form of a shadow price).
For entries in this column with a prefix of sc_ the model will look for a matching Supply Curve Name in the Supply Curve table. When the supply curve is used, the price may vary depending on the actual observed emissions of the set. See the Supply Curve table for more details.
For entries with no prefix or a prefix of ep_ the model will look for a matching reference ID in the Emission Price table. When a reference to an Emission Price is used, the price will be fixed for the current year.
This column is not used for energy constraints.
NOTE: When doing an Emission Constraint study, the resource or zone level Emission Price IDs do not have to match constraint level emission prices IDs, but the constraint level prices will take precedence if both are defined for the same emission type.
Emission Pricing Column