Endogenous Capacity

This guide explains how the Low Emissions Analysis Platform (LEAP) calculates endogenous capacity to maintain minimum planning reserve margins, detailing the process for specifying addition sizes, order of addition, and the use of supply curves.

• Endogenous capacity is calculated internally by LEAP to ensure a minimum planning reserve margin is maintained, acting as a supplement to the exogenous capacity levels specified by the user. This variable is not utilized when a LEAP module is calculated using least-cost optimization methodology.
• To manage endogenously added capacity, users define a list of available processes, specifying their addition size and the order in which they are added. LEAP cycles through these processes sequentially to meet reserve margin requirements; once a process reaches its specified lifetime, it is automatically retired.
• The timing for when LEAP begins adding endogenous capacity is influenced by the speed of electricity requirement increases, the initial reserve margin relative to the planning reserve margin, and whether any capacity has been added exogenously.
• Users can specify a supply curve by combining the endogenous capacity screen with the Maximum Built Capacity variable. This allows for a sequence where one process is built up to its maximum capacity before a subsequent, often 'next generation', technology is added.

APA

Stockholm Environment Institute (n.d.). Endogenous Capacity. https://cdn.leap.sei.org/help24/Transformation/Endogenous_Capacity.htm

Chicago

Stockholm Environment Institute. Endogenous Capacity. n.d. https://cdn.leap.sei.org/help24/Transformation/Endogenous_Capacity.htm.

Wikipedia

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

BibTeX

@techreport{stockholmenvironmentinstitutendendogenous, author = {{Stockholm Environment Institute}}, title = {{Endogenous Capacity}}, institution = {Stockholm Environment Institute}, url = {https://cdn.leap.sei.org/help24/Transformation/Endogenous_Capacity.htm}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }