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System Summary

About

The System Summary chart produces a useful summary of the market over a period of time and can be used to identify historical periods of interest. This shows the evolution of all the key prices in the market as well as levels of demand and margin.

Tight levels of demand and margin indicates high prices in the system:

Included Data

The data on this chart is as follows:

  • Demand + System Margin - total system availability not taking into account the time required to get certain units generating
  • Demand + Spinning Reserve - total system availability taking into account the time required to get certain units generating, using spare availability at already running units
  • Demand (INDO/NDF) - Levels of demand based upon the initial demand outturn data and the forecast for this value (National Demand Forecast). This is INCLUDING transmission losses but EXCLUDING station transformer load, pumped storage demand and interconnector demand
  • Imbalance - This is the sum of all noted imbalance volumes at all units in the system and shows the level of trips within the system. When high it indicates that a number of units have trips and at such times prices can be affected by this activity.
  • Sum of FPNs - Plots levels of FPN generation as summed across all units indicating how much generation was expected across the system before adjustments were made via the balancing mechanism.
  • SSP - the system sell price (the price at which over-produced power must be sold at)
  • SBP - the system buy price (the price at which under-produced power must be bought at)
  • MIDP - the market index data price (the volume weighted average of the trades in the APX intraday auction within an 8 hour window ahead of delivery)
  • Day-Ahead EPEX Price - the price for power in the 9:20am EPEX day ahead auction with results generally being published at 9:30am
  • Day-Ahead Nordpool Price - the price for power in the 9:50am Nordpool day ahead auction with results generally being published at 10:00am

Data Service

The System Summary data can be extracted from the API to extract the markets key system level data series. The parameters used as follows:

Code Required/Optional Description
chart Required systemsummary
startdatetime Required The start date time in format YYYYMMDDHHMMSS.
enddatetime Required The end date time in format YYYYMMDDHHMMSS.
resolution Required The type of resolution. (See 'resolutions' action)
format Required The type of format. The value could be xml or csv . (See 'formats' action)

Example :

https://enbm.netareports.com/dataService?username=xxx&password=xxx&format=xml&action=data&chart=systemsummary&startdatetime=20180416000000&enddatetime=20180417000000&resolution=hh