v0.9

New feature :

• function select_years() which cluster from a full Antares dataset a few representative Monte-Carlo years with associated weights

• setting yearly-weights which allows to ponderate ununiformly the simulated Monte-Carlo years.

The role of those two new features is to speed-up the computation time by reducting the number of simulated Monte-Carlo years when using the package.

v0.8

New features :

• investment candidates can now have an already-installed-capacity
• load factor profiles can now have two columns to distinguish the impact of the investment candidates on the two directions of the link

v0.7

Major changes:

• relaxed_fast mode has been renamed expansion_fast
• fast and accurate modes have been restrained as they are not fitted to the benders decomposition algorithm

New features:

• expansion_accurate mode has been added. It takes into account technical constraints of the thermal clusters (Pmin, minimum up/down duration) and includes in its objective function the start-up costs. It differs from the accurate mode of Antares in that the unit-commitment is non-integer.

v0.5

New features :

• Addition of availabity time series (in percentage of the invested capacity) to model the fact that a candidate might not be equally available in every hour of the year. This new feature notably allow the modelling of intermittent generation.
• Parallel computing of the ANTARES simulations (if ANTARES v6.0.0 or more is used) with the new argument parallel of the benders() function. If parallel=TRUE, the Monte Carlo years will be simulated in parallel within ANTARES.
• Deletion of the ANTARES outputs generated by the expansion problem with the new argument clean of the benders() function. If clean=TRUE, the output of ANTARES simulation will be deleted at each iteration of the expansion problem, except for the ones of the best found solution.
• Addition of LOLE (h/year) in the report, for each area and each iteration.
• Reloading capacities of the best found solution in the ANTARES study at the end of the benders() function
• Reseting the ANTARES options to their initial values at the end of the benders() function

v0.4

v0.4 does not include new features but fix some bugs of the v0.3.

Add error report when input data (from the antares study or candidates.ini file) does not respect the convergence conditions of the benders decomposition:

• Return error if candidate’s names and associated links are not unique
• Return error when market bid are not equal to marginal costs

Bugfix:

• Handle link names with capital letters
• Handle study path with spaces
• Return clear error when ANTARES solver version does not match the version of the study
• Force the initialization of the candidates to a multiple of unit-size
• Fix error in the generation of the .html report when the integer solution was found in the relaxed search