Reserve requirements
The reserve requirement functionality models the effect of a transmission system operator procuring reserve capacity from power plants in the system. For mathematical details, please consult the model documentation. Regarding the details surrounding the API, we refer to the module documentation for information on resource URLs and UUIDs of the relevant time series.
Input
The modelling of reserve requirements involves specifying a minimum reserve requirement per area for up or down regulation through the API. As detailed in the mathematical documentation, the functionality is closely connected to startup costs but specifying start up costs is not a requirement, contrary to EMPS’ modelling. We refer to the documentation of startup costs in the thermal module or hydro module.
As reserve requirements is a feature of EMPS, Trident allows to interact with a set of LtmV10 files related to reserve requirements thruogh the LtmV10 loader. However, as EMPS only deals with reserve requirements for thermal units, additional specification of hydro reserve units must be provided through the API. The files required for the reserve requirement functionality in the LtmV10 data set are
“startkostnader.dat”
“styreparametre-startkost.dat”
“Reservekrav.csv”
The first two files specify data such as which thermal units participate in reserves, startup costs and time interval for simulating with startup costs. The last file contains time series data for minimum reserve requirements per area, which is assumed to be in MW.
Lastly, in order to correctly process the relevant thermal plants in Trident, the ltm2trident conversion tool must be run with the option --load-thermal.
Output
The module contains result series for upward and downward production per power plant as well as shadow prices for the area wide constraints.