R/zchunk_LA117.tradbio.R

In rohmin9122/gcam-korea-release: Build the GCAM-Korea Input Datasets

#' module_energy_LA117.tradbio
#'
#' Creates regional traditional biomass supply curves
#'
#' @param command API command to execute
#' @param ... other optional parameters, depending on command
#' @return Depends on \code{command}: either a vector of required inputs,
#' a vector of output names, or (if \code{command} is "MAKE") all
#' the generated outputs: \code{L117.RsrcCurves_EJ_R_tradbio}. The corresponding file in the
#' original data system was \code{LA117.tradbio.R} (energy level1).
#' @details Creates regional traditional biomass supply curves by multiplying the max historical amount
#' used in each region by the supply curve amount in the global assumption supply curve
#' @importFrom assertthat assert_that
#' @importFrom dplyr filter mutate select
#' @importFrom tidyr gather spread
#' @author RH March 2017
module_energy_LA117.tradbio <- function(command, ...) {
  if(command == driver.DECLARE_INPUTS) {
    return(c("L1011.en_bal_EJ_R_Si_Fi_Yh",
             FILE = "energy/A17.tradbio_curves"))
  } else if(command == driver.DECLARE_OUTPUTS) {
    return(c("L117.RsrcCurves_EJ_R_tradbio"))
  } else if(command == driver.MAKE) {

    ## silence package check.
    year <- value <- GCAM_region_ID <- sector <- fuel <- available <-
        resource <- subresource <- grade <- extractioncost <- NULL


    all_data <- list(...)[[1]]

    # Load required inputs
    L1011.en_bal_EJ_R_Si_Fi_Yh <- get_data(all_data, "L1011.en_bal_EJ_R_Si_Fi_Yh")
    A17.tradbio_curves <- get_data(all_data, "energy/A17.tradbio_curves")

    # ===================================================

    # Calculate the max resource of tradbio as the maximum during the historical years
     L1011.en_bal_EJ_R_Si_Fi_Yh %>%
      filter(fuel == "biomass_tradbio", sector == "TPES") %>%
      group_by(GCAM_region_ID, sector, fuel) %>%
      summarise(value = max(value)) ->
      L117.maxSubResource_tradbio

    # Writing the supply curves to all regions, multiplying maxSubResouce by quantity available at each grade
    repeat_add_columns(A17.tradbio_curves, L117.maxSubResource_tradbio) %>%
      arrange(GCAM_region_ID) %>%
      mutate(available = available*value) %>%
    # Removing resource curves in regions where this fuel does not apply
      filter(value != 0) %>%
      select(GCAM_region_ID, resource, subresource, grade, available, extractioncost) %>%

    # ===================================================

    # Produce outputs

      add_title("Traditional biomass resources by GCAM region ") %>%
      add_units("available: EJ; extractioncost: 1975$/GJ") %>%
      add_comments("Multiply the max historical amount used in each region by the supply curve amount") %>%
      add_legacy_name("L117.RsrcCurves_EJ_R_tradbio") %>%
      add_precursors("L1011.en_bal_EJ_R_Si_Fi_Yh", "energy/A17.tradbio_curves") ->
      L117.RsrcCurves_EJ_R_tradbio

    return_data(L117.RsrcCurves_EJ_R_tradbio)
  } else {
    stop("Unknown command")
  }
}