The National Energy Modeling System (1992) / Chapter Skim
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Appendix E: A Brief Description of DOE and EIA Models
Appendix E: A Brief Description of DOE and EIA Models
Pages 129-134
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From page 129... ...
The core model of PIES/MEFS was a single linear program of regional fare} supply, transportation, conversion, and end-use demand activities. This linear program optimized by solving for the configuration of fuel production =d transportation to meet demand at the least cost to consumers.
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From page 130... ...
The fuel supply modules of 1~[S encompass all the activities necessary to produce, import, and transport the fuel to the end user, thus computing the domestic production and the regional end-use prices necessary to meet end-use demand. Each of the end-use demand modules compute the fuel requirements for the sector by region, based upon the regional end-use prices of aD competing fuels, as well as other factors such as economic variables and technology characteristics.
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From page 131... ...
So the electricity module computes a denved demand curve for natural gas, explicitly representing the demand for gas at a variety of pnces, for both the electricity acid gas modules to deal more effectively with convergence. Due to the partitioning of the energy markets and the specific implementation of the modules, it is stra~ghdorward to execute any subset of the modules or a sit [e module In IFFS or to substitute a module that meets a minimum interface requirement.
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From page 132... ...
These generic models include a simple and a complex conversion process, an allocation process, a primary resource process, a end-use demand process, and a transportation process. In building a model using GEMS, a user draws the network by selecting a generic model for each node, defining all the input and output links to other nodes, and specifying all necessary data to characterize the node specifically.
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From page 133... ...
For those where there are choices of fuels, a least-cost aIgonthm based on consumer choice theory is used In Fossil2 to determine the market share for different fuel- using categories of new energy equipment. The energy supply sectors of the Fossil2 mode} represent the decisions that lead to the commitment to new production capacity, the operation of existing production capacity, and the setting of energy prices for oil, gas, coal alla electricity.
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