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Estimated Energy Surplus of the Day Ahead Market

The following graphs show:

  • The estimated Energy Surplus from the solution of the Integrated Scheduling Process (Energy Surplus ISP)
  • The estimated Energy Surplus from RES from different schedules (RES ISP – RES DAM), between
    • the Day Ahead Market (RES DAM) and
    • the Integrated Programming Process (RES ISP)

The Energy Surplus from ISP has negative values, as depicted in the solution of the Integrated Scheduling Process implemented by IPTO.

The estimated Energy Surplus from different RES schedules (RES ISP – RES Market), shown in the following graph as shaded are since 18.01.2024,
date when IPTO started reporting the estimated Energy Surplus within
the solution of the Integrated Scheduling Process (Energy Surplus from
ISP), can be:

  • positive, meaning that part of the estimated Energy Surplus from the ISP schedule, has not been included in the solution of the DAM schedule.
  • negative, meaning that the DAM schedule estimates additional Energy Surplus from RES, on top of the Energy Surplus from the ISP schedule.

 

The following graph shows the 2 curves described above, when there exist (negative) Energy Surplus values from the solution of the Integrated Scheduling Process (Energy Surplus ISP).

  • Daily estimated Energy Surplus for each hour of any selected date, since the implementation of the Target Model in Greece
  • Average estimated Energy Surplus for each hour on any selected time-period, since the implementation of the Target Model in Greece
  • Total estimated Energy Surplus for each hour on any selected time-period, since the implementation of the Target Model in Greece

Notes:

The Integrated Scheduling (ISP) includes the solutions of ISP2 and ISP3 of IPTO, for the first twelve and the last twelve hours of each day respectively, close to real-time. Since no data is published by IPTO for the solution of the Real-Time Balancing Energy Market (RTBEM), which is the most approximate result of the actual real-time operation, the ISP was chosen to be depicted as the the closest to real-time solution.

IPTO, since 18.01.2024, publishes the estimated Energy Surplus within the ISP. The actual Energy Surplus in the real time may differ significantly from the estimated Energy Surplus in the above indicative schedule (ISP), and should be considered as an indicative estimation by IPTO close to real time.

For the Day Ahead Market and the Intraday Market, the net load of Crete, as a result of the electric demand of Crete minus the local electricity production from RES and thermal units, is added to the load of the system (Load DAM, Load Market),while for the Integrated Scheduling Process the power flow through the Crete-Peloponnese cable (VIRTUAL_CRETE of the ISP) is added to the load of the system (Load ISP), as Crete – until the start of operation of the Crete – Attica interconnection – is treated as a Small Interconnected System.

Sources: