Hydro clustering - UC CR 13 Bis

[hugo-antoine-rtei]

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Work In Progress - I will add to this discussion in the coming days

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The implementation of a clustered approach to hydro is key in order to:

• Enables future work on the reserves to be carried out
• Compliance with methodology for hydropower modelling of key adequacy assessments e.g., ERAA, NRAAs.
• Improved UCED in hydro-dominated countries (e.g., Austria, Switzerland, Sweden, Norway).
• Simplification of the modelling approach and results analysis thanks to reduced usage of virtual areas, links, user-made constraints and other cumbersome workarounds.

Logic of the Change

The objective is to allow the definition of multiple reservoirs on a single area and have one single aggregated unit connected to each reservoir – no connected reservoirs at this stage, one reservoir per Hydro Valley. No time-series generation will be possible for hydro clusters. The hydro heuristic will be applied on each cluster separately (instead of each area, it will be each cluster).

1 - UI Change

1.1 - Inputs

The hydro clusters should be defined similarly to the Renewable and Thermal clusters. For ease of development and to ensure compatibility, the hydro clusters will be added as a new window inside Antares:

Note: This approach should probably be revisited down the road, with a switch like it was done for the renewable clusters.

Inside of that window, you will find on the left the list of each area, like for the renewable clusters or thermal windows, and on the right, two general tabs will be available, containing data applicable for all hydro clusters:

• Allocation: Matrix to keep track of the weight of each area's load in the heuristic of each hydro cluster, with the shape:
             area_1.cluster_1   area_1.cluster_2   area_2.cluster_1    area_2.cluster_2
  load_area_1  1                0.5               0                       0
  load_area_2  0               0.5              1                       1
  load_area_3  0                0                0                       0
  load_area_4  0                0                0                       0
• Hydro Cluster List: list of all hydro clusters, copied from the thermal&renewable clusters, with the ability to create/delete/clone hydro clusters for each area. In the bottom of this tab we will define cluster-related data once a cluster is selected.

Once a hydro cluster is selected, the following tabs are available in the bottom of the Hydro Cluster List tab:

• Common: Name of the hydro cluster, to keep the same structure as is found in thermal&renewable clusters
  Note: Could be used in the future when we define more than one turbine unit per hydro cluster.
• Management Options: Same as current
• Daily Power and Energy Credits: Same as current
• Reservoir levels and water values: Same as current
• Run-of-the-river (ROR): Same as current
• Hydro Storage: Same as current
• Minimum Generation: Same as current

The following tabs are intentionally not re-used, as generation of inflows time-series for hydro clusters will not be available:

• Spatial Correlation
• Inflow Structure

1.2 - Outputs

The logic used for thermal and renewable clusters can also be re-used. A separate tab, “Hydro clusters” will be created, to hold the “H. ROR”, “H. STOR”, “H. PUMP”, “H. LEV”, “H. INFL”, “H. OVFL”, “H. VAL”, and “H. COST” columns for each hydro cluster.

2 - File Storage

2.1 - Input files

Current way of storing data:

/hydro
  ⌞ allocation
    ⌞ .ini
  ⌞ common
    ⌞ capacity
    ⌞ creditmodulations_.txt
    ⌞ inflowPattern_.txt
    ⌞maxpower_.txt
    ⌞ reservoir_.txt
    ⌞ waterValue_.txt
  ⌞ prepro

Proposition to add a new folder inside input: hydroclusters:
/hydroclusters