ifference between revisions of "EMO:Charts"

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The following chart types are used in ''EMarketOffer:''
 +
*'''''Supply Curve Graph'''''
 +
*'''''Offer Graphs'''''
 +
*'''''Demand Histograms'''''
 +
*'''''General Purpose Charts'''''
 +
 +
== The Supply Curve Graph ==
 +
 +
=== Access ===
 +
The '''Supply Curve''' option is under the '''Supply and Demand''' item on the '''Edit''' menu of the '''''Main Window''''' and is available for all '''''Data Source''''' types.
 +
 +
=== Purpose ===
 +
The Supply Curve Graph displays the Offer Stack for the '''''Current Data Set''''' (excluding the Powerflow Case Data Source).  The Graph appears in its own window and is updated whenever the Current Data Set changes.
 +
 +
=== Features ===
 +
 +
{|class="wikitable"
 +
! Feature !! Purpose
 +
|-
 +
|
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:''Title Bar''
 +
|
 +
:Shows Current Data Source and Current Period displayed in the graph
 +
|-
 +
|
 +
:''Price Axis''
 +
|
 +
:Non-Linear scale of Offer price
 +
|-
 +
|
 +
:''Quantity Axis''
 +
|
 +
:Represents total offered quantity (MW) in the Current Period
 +
|-
 +
|
 +
:''Demand Line''
 +
|
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:System Demand for the Current Period
 +
|-
 +
|
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:''Supply Curve''
 +
|
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:A line joining the price points in the Supply stack
 +
|-
 +
|
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:''Supply Roll Over''
 +
|
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:A mouse-activated feature that shows details about the Unit offering capacity at that (vertical) point on the Supply Curve.
 +
 +
----
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NOTE: It should NOT be assumed that a Unit belongs to a marginal Generation Station if an offer band is not fully dispatched
 +
|-
 +
|
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:''Dispatched Shading''
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|
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:Provides a vertical shaded band at right angles to the Supply Curve at every point along where quantity offered was actually dispatched. This means that:
 +
*Generation that was expected to be dispatched based on price but was not, shows as vertical white bands to the left of the Demand Line
 +
*Generation that was not expected to be dispatched on price but was, shows as vertical green bands to the right of the Demand Line
 +
|-
 +
|
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:''Options Link''
 +
|
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:Open the Supply Curve Options Window to customise the appearance of the Supply Curve Graph
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|}
 +
 +
----
 +
NOTE: The Supply Curve Graph Window is sizeable. The chart area expands and compresses to fill the available space.
 +
 +
===The Supply Curve Options Window===
 +
 +
====Access====
 +
The '''Options Link''' on the '''''Supply Curve Graph.'''''
 +
 +
====Purpose====
 +
To customise the appearance of the '''''Supply Curve Graph'''''
 +
 +
{|class="wikitable"
 +
! Feature !! Purpose
 +
|-
 +
|
 +
:''Supply Colour''
 +
|
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:Uses the Windows Colour Picker to select a colour for the Supply Curve line
 +
|-
 +
|
 +
:''Demand Colour''
 +
|
 +
:To select a colour for the Demand line
 +
|-
 +
|
 +
:''Generation Colour''
 +
|
 +
:To select a colour for the Generation
 +
|-
 +
|
 +
:''Show Generation Fill''
 +
|
 +
:On/Off Toggle for the display of the dispatched generation shading
 +
|}

Revision as of 11:06, 9 January 2013

The following chart types are used in EMarketOffer:

  • Supply Curve Graph
  • Offer Graphs
  • Demand Histograms
  • General Purpose Charts

The Supply Curve Graph

Access

The Supply Curve option is under the Supply and Demand item on the Edit menu of the Main Window and is available for all Data Source types.

Purpose

The Supply Curve Graph displays the Offer Stack for the Current Data Set (excluding the Powerflow Case Data Source). The Graph appears in its own window and is updated whenever the Current Data Set changes.

Features

Feature Purpose
Title Bar
Shows Current Data Source and Current Period displayed in the graph
Price Axis
Non-Linear scale of Offer price
Quantity Axis
Represents total offered quantity (MW) in the Current Period
Demand Line
System Demand for the Current Period
Supply Curve
A line joining the price points in the Supply stack
Supply Roll Over
A mouse-activated feature that shows details about the Unit offering capacity at that (vertical) point on the Supply Curve.

NOTE: It should NOT be assumed that a Unit belongs to a marginal Generation Station if an offer band is not fully dispatched

Dispatched Shading
Provides a vertical shaded band at right angles to the Supply Curve at every point along where quantity offered was actually dispatched. This means that:
  • Generation that was expected to be dispatched based on price but was not, shows as vertical white bands to the left of the Demand Line
  • Generation that was not expected to be dispatched on price but was, shows as vertical green bands to the right of the Demand Line
Options Link
Open the Supply Curve Options Window to customise the appearance of the Supply Curve Graph

NOTE: The Supply Curve Graph Window is sizeable. The chart area expands and compresses to fill the available space.

The Supply Curve Options Window

Access

The Options Link on the Supply Curve Graph.

Purpose

To customise the appearance of the Supply Curve Graph

Feature Purpose
Supply Colour
Uses the Windows Colour Picker to select a colour for the Supply Curve line
Demand Colour
To select a colour for the Demand line
Generation Colour
To select a colour for the Generation
Show Generation Fill
On/Off Toggle for the display of the dispatched generation shading
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