Dispatch Rule

The document describes how LEAP handles process dispatching during simulation, detailing five specific rules—PercentShare, ProportionalToCapacity, FullCapacity, MeritOrderDispatch, and RunningCost—and the data requirements necessary to enable each.

• LEAP distinguishes between two dispatch modes: Historical Dispatch, which runs processes based on the 'Historical Production' variable for years preceding the first simulation year, and Simulation, which applies specific Process Dispatch Rules from the first simulation year onwards.
• The 'PercentShare' rule allows users to specify that a process meets a certain percentage of a module's requirements, provided there is enough capacity; this is particularly useful for integrating results from external models into LEAP.
• Two dispatch rules require capacity data: 'ProportionalToCapacity', which dispatches processes based on the ratio of their available capacity (Capacity * Maximum Availability), and 'FullCapacity', which runs processes at maximum available capacity regardless of module requirements, suitable for export-driven industries.
• The 'MeritOrderDispatch' rule, which requires both capacity and system load curve data, simulates power plant dispatch to meet both annual electricity demand and instantaneous power demand in time slices, based on defined merit orders.

APA

Stockholm Environment Institute (n.d.). Dispatch Rule. https://leap.sei.org/help24/Transformation/Process_Dispatch_Rules.htm

Chicago

Stockholm Environment Institute. Dispatch Rule. n.d. https://leap.sei.org/help24/Transformation/Process_Dispatch_Rules.htm.

Wikipedia

{{cite report |author=Stockholm Environment Institute |title=Dispatch Rule |url=https://leap.sei.org/help24/Transformation/Process_Dispatch_Rules.htm |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{stockholmenvironmentinstitutenddispatch, author = {{Stockholm Environment Institute}}, title = {{Dispatch Rule}}, institution = {Stockholm Environment Institute}, url = {https://leap.sei.org/help24/Transformation/Process_Dispatch_Rules.htm}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }