Functional Architecture

This section describes the components which make EMarket work.

Functional Components

1. Four 'Calculation Engines:'
   1. Water Value calculation module
   2. Dispatch module (SPD simulation)
   3. Short term river chain optimisation module
   4. Company optimisation module
2. A 'Volatility Engine' which includes:
   1. A Volatility Matrix (incorporating inflow variability)
   2. A Monte Carlo series Generator
3. A scripting language which includes:
   1. A script editor (effectively the EMarket user interface)
   2. A script interpreter (controls the system operation) the scripting language underlies all EMarket operations. It is used to:
      1. Describe the characteristics of all Resource Instances
      2. Control and coordinate the operation of the calculation and volatility engines
      3. Control the production and formatting of output data

The script for a complete EMarket working environment is contained in the Resources.txt file stored in the Data folder of the associated Working Directory. With a copy of this script it is possible to recreate the same working environment on a different computer running EMarket and produce the same Forecast Results. However to reproduce exactly the same Forecast Data on a different computer with a script, both computers must be running the same version of EMarket and be using the same Demand and Inflow data. Differences in Forecast output may also occur if the associated Run Definition relies on randomly seeded unit outages or data series created by the Monte Carlo Generator.