1. Nomenclature

This section defines all sets, parameters, and variables used in the market and redispatch model.

Sets

SymbolDescriptionUnit
$\mathbf{ACL}$Set of AC lines-
$\mathbf{DCL}$Set of DC lines-
$\mathbf{N}$Set of nodes-
$\mathbf{P}$Set of power plants (including renewables)-
$\mathbf{S}$Set of storage units-
$\mathbf{T}$Set of time periods-
$\mathbf{Z}$Set of market zones-

Parameters

SymbolDescriptionUnit
$\mathbf{avail_{p,t}}$Availability of generating unit $p$ at time $t$-
$\mathbf{cap_{acl}^{max}}$Maximum capacity of AC line $acl$MW
$\mathbf{cap_{dcl}^{max}}$Maximum capacity of DC line $dcl$MW
$\mathbf{cap_{s}^{max}}$Maximum storage capacity of unit $s$MWh
$\mathbf{c^{curt}}$Curtailment cost$\mathrm{EUR}/\mathrm{MWh}$
$\mathbf{c_{p,t}^{mc}}$Marginal cost of generating unit $p$ at time $t$$\mathrm{EUR}/\mathrm{MWh}$
$\mathbf{charge_{s,t}}$Charging of storage unit $s$ at time $t$ (input, redispatch)MW
$\mathbf{cu_{p,t}}$Curtailment of unit $p$ at time $t$ (input, redispatch)MWh
$\mathbf{gen_{p}^{max}}$Maximum generation capacity of unit $p$MW
$\mathbf{gen_{p,t}}$Generation of unit $p$ at time $t$ (input, redispatch)MW
$\mathbf{gen_{s}^{max}}$Maximum generation capacity of storage unit $s$MW
$\mathbf{inflow_{s,t}}$Inflow into storage unit $s$ at time $t$MW
$\mathbf{load_{n,t}}$Load at node $n$ at time $t$MWh
$\mathbf{ntc_{z,zz}}$Nominal transmission capacity between zones $z$ and $zz$MW
$\mathbf{A^{dc}_{l\times n}}$Incidence matrix of DC lines-
$\mathbf{B^{line}_{acl \times n}}$Line susceptance matrix-
$\mathbf{B^{bus}_{n \times m}}$Bus susceptance matrix-
$\mathbf{\\eta_s}$Efficiency of storage unit $s$-

Variables

SymbolDescriptionUnit
$\mathbf{CHARGE_{s,t}}$Charging of storage unit $s$ at time $t$MW
$\mathbf{CHARGE_{s,t}^{down}}$Charging decrease of storage unit $s$ at time $t$ after redispatchMW
$\mathbf{CHARGE_{s,t}^{redisp}}$Charging of storage unit $s$ at time $t$ after redispatchMW
$\mathbf{CHARGE_{s,t}^{up}}$Charging increase of storage unit $s$ at time $t$ after redispatchMW
$\mathbf{CU_{p,t}^{redisp}}$Curtailment of generating unit $p$ at time $t$ after redispatchMWh
$\mathbf{CU_{z,t}}$Curtailment at zone $z$ at time $t$MWh
$\mathbf{EX_{z,t}^{net}}$Net exchange at zone $z$ at time $t$MWh
$\mathbf{EX_{zz,z,t}}$Exchange from zone $zz$ to zone $z$ at time $t$MWh
$\mathbf{F_{dcl,t}}$DC line flow at time $t$MW
$\mathbf{F_{dcl,t}^{neg}}$DC line flow in negative direction at time $t$MW
$\mathbf{F_{dcl,t}^{pos}}$DC line flow in positive direction at time $t$MW
$\mathbf{GEN_{p,t}}$Generation of unit $p$ at time $t$MW
$\mathbf{GEN_{p,t}^{redisp}}$Generation of unit $p$ at time $t$ after redispatchMW
$\mathbf{INJ_{n,t}}$Injection at node $n$ at time $t$MW
$\mathbf{RAMP_{p,t}^{down}}$Ramping down of generating unit $p$ at time $t$MW
$\mathbf{RAMP_{p,t}^{up}}$Ramping up of generating unit $p$ at time $t$MW
$\mathbf{S_{s,t}^{lvl}}$Storage level of storage unit $s$ at time $t$MWh
$\mathbf{S_{s,t}^{lvl,redisp}}$State of charge of storage unit $s$ after redispatch at time $t$MWh
$\mathbf{\theta_n}$Voltage phase angle at node $n$-

See market_model.md for the utilization of the Sets, Parameters and Variables.