Summary
The Financial Page charts and tabulates the gross margin, components of gross margin, variables that relate to gross margin, regulation enablement and non-enablement factors and other metrics such as market share of FCAS. The primary use is to better understand the revenues and liabilities for regulation FCAS so that revenues may be improved and liabilities can be identified and therefore reduced. The reports are specifically designed to be aggregated over both time (from 5 min to 1 year) and units (from single units to stations, portfolios and regions).
Definition of gross margin and the components
A full description and derivation of gross margin and the components and underlying variables can be found in the PAGE "Derive regulation gross margin"
How To Access "Financial Reports"
To open the "Financial Page" use the URL fcaspays.com.au and click on the dollar pad symbol in the left hand navigation bar (shown left).
Selecting units, station, portfolios and/or regions
Expand the selection tree and choose the objects you wish to include in your report (left screen shot).
You can remove branches of the tree and you can add filters on any branch.
The screen shot to the right shows portfolio branch switched off.
Click add filter, in this case region filter has been selected for NSW1.
You can add more than one filter and more than one object per filter.
Calculation of raise/lower non enablement and enablement factors
The recovery of regulation FCAS costs is described in AEMO's document, "REGULATION FCAS CONTRIBUTION FACTOR PROCEDURE". The preceding step in aggregating a portfolios factor, "Area Portfolio Factor" is to calculate the Raise and Lower Enablement Factors, REF and LEF respectively, and the Raise and Lower Non-Enablement Factors, RNEF and LNEF respectively. The following example shows how to calculate these four values for a station, in this case Vales Point.
How To Select the Enablement Factors - REF, LEF, RNEF and LNEF
Select the services, Lowerreg and Raisereg from the select SERVICES option.
Then select the Variables Not Enabled Factors and/or Enabled Factors.
Then select the level of unit and time aggregation and the time period located in the top tool bar.
Calculation of raise/lower non enablement and enablement factors
To calculate the 4 week Portfolio Factor you need to sum 4 weeks of each factor, take the minimum of zero and the value for enabled factors and sum the four values, then divide by the number of 4 second intervals - i.e. divide by 28days*24hours*12dispatchintervals*75foursecondintervals. Note that our enablement factors are sums not averages. We do this because averages can be misleading.
The recovery of regulation FCAS costs is described in AEMO's document, "REGULATION FCAS CONTRIBUTION FACTOR PROCEDURE". The preceding step in aggregating a portfolios factor, "Area Portfolio Factor" is to calculate the Raise and Lower Enablement Factors, REF and LEF respectively, and the Raise and Lower Non-Enablement Factors, RNEF and LNEF respectively. The following example shows how to calculate these four values for a station, in this case Vales Point.
Portfolio Factor (Sum) = min(0, (299817 + 1089327 + 591092 - 487886)) + (-1126500 - 5966139 - 5920043 - 3024999) + min(0, (1708742 + 4112717 + 983939 + 6151298)) + (628208 + 2360981 - 602921 + 982151)
Portfolio Factor = 0 - 160376681 + 0 + 3368419
Portfolio Factor = - 12,669,262
Average Portfolio Factor = -12,669,262 / (28*24*12*75) = 20.94
