Project SWITCH – A capacity expansion model for the electricity sector

Associated Publications:

SWITCH (Solar and wind energy integrated with transmission and conventional sources) is a linear programming modeling platform used to examine least cost energy systems designed to meet specific reliability, performance and environmental quality standards.


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SWITCH is a capacity expansion model that invests in new generation and transmission assets as well as in end-use and demand-side management options (including electrified vehicles and storage) with a high-resolution assessment and planning package to explore the system performance resting from different scenarios.

SWITCH was initially developed for California, but has been expanded and refined to explore energy choices across the US West (the WECC, Chile, Nicaragua, China), with future plans to cover the East African Power Pool (EAPP) and India.

A wide range of SWITCH publications are in print and in use at various energy, climate, and development agencies.

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