Ancillary Services Opportunity Cost (ASOC) Analyzer for MISO

Generating companies in an energy/ancillary service market have the option to provide ancillary services (particularly load following, regulation, and contingency reserve), gaining ancillary service revenue and incurring some costs. These costs have many drivers, from the wear and tear on the units caused by following regulation signals, to penalties for quality of response, to energy opportunity cost. The ASOC Analyzer software was created to estimate how much ancillary services really cost and how well the market compensates their provision. The package helps analyze, pinpoint, and describe the drivers of such costs.

Why does every MISO market participant need the ASOC Analyzer?

By using real-time operational data gathered with a resolution of a few seconds and relating it to settlement results through detailed reports and easy-to-understand charts, ASOC Analyzer provides a powerful platform for companies seeking to maximize the profitability of their operation in real-time markets.

Features of ASOC Analyzer:

• The ASOC Calculator component:
  • The ASOC Calculator extracts data from settlement reports and historical operational data to determine the ASOC. ASOC is incurred in many ways, among them:
    • Opportunity cost of providing regulation and contingency reserves
    • For parameters unavailable until settlement, inaccuracies in their estimates
    • Compliance with regulation instructions from the market operator
    • Plant/unit-level control problems
    • Decision-making in bidding and operation
    • Manual redispatch ordered by MISO
  • The ASOC Calculator also identifies the profit that would have been attained if the plant provided only energy and responded solely, and optimally, to market conditions. The difference between that profit and the profit actually attained is Ancillary Services Opportunity Cost or ASOC. The goal is to minimize occurrences of high positive ASOC.
  • ASOC Calculator stores and manages the ASOC data in a database for easy retrieval later.
• The ASOC Reporter component:
  • The ASOC Reporter enables an analyst to generate several customizable tables and charts that indicate trends in opportunity cost, broken down over various periods of time, across units or groups of units, and across categories of costs or revenues.
  • The ASOC Reporter data comparison capabilities flag discrepancies between GMS data and settlement data that could indicate reporting errors or could mislead operators and control software into making suboptimal decisions.
  • The charts created by the ASOC Reporter enable improved communication among management, operations staff, and analysts.




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