Electric Generation Expansion Analysis System (EGEAS), v13.1

The Electric Generation Expansion Analysis System (EGEAS) is a modular state-of-the-art generation expansion software package. EGEAS is used by utility planners to produce integrated resource plans, evaluate independent power producers, develop avoided costs and environmental compliance plans, and analyze life extension alternatives. EGEAS is a set of computer modules that determine an optimum expansion plan or simulate detailed production costs for a prespecified plan. Expansion plans are defined by the type, size, and installation date for each new generating facility or demand-side management resource. Optimum expansion plans are developed in terms of annual costs, operating expenses, and carrying charges on investment. The objective is to find an integrated resource plan that meets the objective function specified by the user. The two objective functions in EGEAS include: minimizing total present worth costs and minimizing levelized annual customer rates.

EGEAS Version 13 added improvements in modeling of renewable resources, provision for input of load and generation data at sub-hourly time intervals, and several other minor enhancements. EGEAS version 13.1 is an incremental upgrade that includes several important “bug” fixes and other improvements (June 2020).

Benefits and Value

  • EGEAS is used by electric utility planners to develop integrated resource plans, evaluate independent power producers, develop avoided costs and environmental compliance plans, and analyze life extension alternatives.
  • EGEAS is a set of computer modules that determine an optimum (least-cost) generation expansion plan or simulate detailed production costs for a prespecified plan.
  • EGEAS can handle a wide variety of generation technologies including thermal (nuclear, fossil, combined cycle, combustion turbine), limited energy (hydroelectric, interruptible rates), storage (pumped hydro, cool storage batteries, compressed air), and non-dispatchable technologies (solar, wind, cogeneration, conservation load management).  EGEAS can also analyze Demand-Side Management (DSM) options such as conservation, strategic marketing, load management, storage, and rate design.

Platform Requirements

Microsoft Windows 7

Windows 8

Windows 10  (32-bit and 64-bit versions).

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