Endogenous Capacity

The document describes the functionality of endogenous capacity in LEAP, which allows the software to automatically calculate and add capacity based on user-defined processes, addition sizes, and order to ensure a planning reserve margin is maintained. It details the user's role in balancing base and peak load plants, the use of conditional expressions for addition sizes, and the ability to create supply curves using maximum built capacity and next-generation technology markers.

• Endogenous capacity is a feature in LEAP that automatically calculates capacity additions to maintain a minimum planning reserve margin, operating as a supplement to exogenous capacity levels. However, this variable is not utilized when the least-cost optimization methodology is applied to a LEAP module.
• Users define endogenous capacity by listing available processes, specifying their addition size and the order in which they are added. LEAP cycles through these processes in the specified order to meet reserve margin requirements, and automatically retires processes once they reach their specified lifetime.
• The timing for when LEAP begins adding endogenous capacity is influenced by the rate of electricity requirement increases, the initial reserve margin relative to the planning reserve margin, and whether exogenous capacity is being added.
• LEAP allows for the creation of supply curves by combining the endogenous capacity screen with the Maximum Built Capacity variable. This enables a sequence where one process is built up to its limit before a 'next generation technology' with a later build order 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} }