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Changelog

All notable changes to this project will be documented in this file. The format is based on Keep a Changelog.

Unreleased

input data/calibration

changed

  • scripts Harmonize command line arguments for output.R: prefix -- is now required, change --outputdir to --outputdirs [#2413]
  • scripts Move LCOE reporting into reoirtingLCOE instead of reporting [#2416]

added

  • scripts Add the possibility to build only some sections of the compareScenarios2 report with --sections= [#2415]

removed

fixed

[3.7.0] - 2026-07-15

input data/calibration

  • Split final energy demands into buildings and industry specific parameters [#2329]
  • update information form MAgPIE( e.g. AP, agricultural costs, supply curves) to MAgPIE v4.14.0 New: land use air pollutants got a major update, because they are taken from current MAgPIE version from now on replacing outdated data [#2364]

changed

  • core Set default regional floor cost to gdpBased instead of uniform [#2400]
  • 33_CDR Rename module to 33_carbonRemoval [#2332]
  • 36_buildings Refactor buildings CES tree structure and remove bound relaxations for improved model performance [#2331]
  • 37_industry Rename set item pri to prim [#2332]
  • 36_buildings, 37_industry Split final energy demands into buildings and industry specific parameters [#2329]
  • 39_CCU Rename module to 39_carbonUtilization [#2332]
  • scripts Use quitte::write.gdx in climateAssessmentInterimRun.R to dump climate assessment results to gdx [#2334]
  • scripts Transition from IAMC-style index column period to REMIND-style tall when writing climate-assessment results to p15_climate.gdx in climateAssessmentInterimRun.R [#2334]
  • scripts include reporttransport/remind2 (EDGE-T/REMIND) variable harmonization. reporttransport (EDGE-T side) energy service demand is rescaled to match exactly remind2 ES/FE/Emi values for variables reported by both models [#2320]

added

  • 30_biomass Quick-fix for cm_maxProdBiolc: allocate up to 25 EJ/yr of the global lignocellulosic biomass potential to regions by hardcoded 2020 crop-production shares (remainder still via marginal-cost inversion); scales down if the budget is smaller and works for both the H12 and EU21 region resolutions [#2390]
  • scripts Add the possibility to give aliases to runs in the compareScenarios2 script [#2399]

removed

fixed

[3.6.0] - 2026-03-27

input data/calibration

  • mrremind new data source for geological CO2 storage potential (split into onshore/offshore and technical vs. limited potentials), replacing the previous LimitCCS output [#788]

changed

  • scripts Forward reporting dir to reportEmiForClimateAssessement [#2287]
  • reporting Distinguish between onshore and offshore transport and storage of captured CO2 [#777]
  • core Distinguish between onshore and offshore transport and storage of captured CO2 [#2296]
  • core replaced execute_load with execute_loadpoint in core/preloop.gms [#2237]
  • 11_aerosols Move calculation of air pollutant emissions from REMIND module 11_aerosols to remind2. [#2231]
  • 21_tax replaced execute_load with execute_loadpoint in 21_tax/on/datainput.gms [#2237]
  • 24_trade replaced execute_load with execute_loadpoint in 24_trade/se_trade/datainput.gms [#2237]
  • 29_CES_parameters replaced execute_load with execute_loadpoint in 29_CES_parameters/calibrate/datainput.gms and 29_CES_parameters/calibrate/preloop.gms [#2237]
  • 30_biomass replaced execute_load with execute_loadpoint in 30_biomass/magpie_40/datainput.gms [#2237]
  • 35_transport replaced cm_startIter_EDGET with c_edgeTransportIter [#2283]
  • 36_buildings replaced execute_load with execute_loadpoint in 36_buildings/simple/datainput.gms [#2237]
  • 37_industry replaced execute_load with execute_loadpoint in 37_industry/subsectors/datainput.gms [#2237]
  • 45_carbonprice Use ScenarioMIP settings as new default for regional carbon price differentiation in 45_carbonprice/functionalForm [#2229]
  • 46_carbonpriceRegi Refactor netZero realisation and ensure that targets are aligned with national accounting #2307
  • 45_carbonprice adapt NDC realization of carbonprice module to implement absolute emissions targets instead of relative targets #2328

added

  • mapping Add csv mapping MAgPIE to REMIND variables used by the coupling script #2249
  • scripts Add new coupling script executed between the Nash iterations to transfer data between REMIND and MAgPIE and run MAgPIE #2249
  • core Adapt maximum early retirement rates and differentiate between NPi and policy runs [#2300]
  • core further decrease early retirement rates in Npi and adapt coal power trends [#2311]
  • 30_biomass Replace realization magpie_40 with new coupling realization magpie that runs MAgPIE between the Nash iterations #2249
  • 40_techpol implement renewable energy share targets for NPi2025 realization based on NewClimate policy protocol [#2226]
  • 45_carbonprice New realization 45_carbonprice/functionalFormRegi for regional carbon budget targets [#2222]
  • 45_carbonprice update NDC realization to run 2030+2035 NDC emissions targets by default and clean up and extend on switches for NDC variants [#2289]

modules

  • Add module 25_WACC to represent technology-specific weighted average cost of capital (WACC) and investment financing costs [#2378]
  • Add realization Investment_Inefficiencies in the 01_macro module [#2379]

removed

  • scripts Remove of coupling scripts #2249
  • scripts The distinction between 'raw' and 'smoothed' land use CO2 emissions is no longer supported, as the MAgPIE reporting only includes raw emissions #2255
  • core remove no longer used technolgies (pcc, pco, apCarPeT) #2228
  • core remove no longer used buildings final energy and useful energy items in sets.gms #2230
  • 21_tax remove input files with upper bounds on subsidies for final energy, as it is directly applied as part of input data generation #2207
  • 30_biomass Replace realization magpie_40 with new coupling realization magpie that runs MAgPIE between the Nash iterations #2249
  • 46_carbonpriceRegi Remove NDC realisation: all NDC mechanisms are in 45_carbonprice #2307

fixed

  • 30_biomass fix pathways of historic 1st generation bioenergy deployment #2253
  • 40_techpol reformulate and weaken renewable FE share targets for EU #2349

[3.5.2] - 2025-09-26

input data/calibration

  • mrcommons New input data rev including new subtype of landuse CO2 emissions (co2luc) #167

changed

  • scripts Refactored the MAgPIE coupling interface (getReportData.R) introducing MAgPIE-to-REMIND mappings and replacing magclass with quitte/dplyr. #2103
  • scripts Upgrade renv from 1.1.4 to 1.1.5 #2192
  • core Restructured core declarations file with different subsections and better documentation. Added units where missing and flagged declarations that can be either be removed or moved to another module in future steps. #2142
  • core Moved variable and parameter declarations from core to more fitting modules. #2189

added

  • scripts Make it possible to provide a renv.lock to be used for a run (useful for the releases) #2195
  • scripts Update release scripts: the release uses the renv snapshot, the develop does not #2196
  • 11_aerosols Add renewed pipeline exoGAINS2025 for the calculation of air pollutant emissions in REMIND. #2205
  • 33_CDR Adds biochar as novel CDR option. Biochar can be produced via three established and one future pe2se technology. #2168

removed

  • 11_aerosols Remove old pipeline exoGAINS for the calculation of air pollutant emissions in REMIND. #2209
  • 21_tax remove input file with upper bound on subsidy for fuel extraction, as it no longer has any effect on the data #2201

fixed

[3.5.1] - 2025-07-10

changed

  • scripts Consolidated the MAGICC7_AR6.R climate reporting script and the climateAssessmentInterimRun.R climate assessment iteration script for damage runs using the remindClimateAssessment and piamenv packages [#2082], [#2099]
  • scripts Enhanced reporting.R to read extra data needed for reporting directly from inputdata [#2084]
  • scripts nashAnalysis is deprecated in favor of improved nashConvergenceReport. [#2138]
  • core Updated costs for learning technologies based on the data in the IRENA 2023 report Renewable Power Generation Costs, and made the convergence from regional to global values slower. Increased floor costs for wind onshore, decreased floor costs for wind offshore, and increased learning rates for both on- and offshore.
  • core restricted near-term growth of electrolysis by putting a global upper bound of 100 GW(el) in 2030 and increasing adjustment cost parameter and decreasing adjustment cost seed value [#2126]

added

  • 45_carbonprice ScenarioMIP settings for regional carbon price differentiation added to 45_carbonprice/functionalForm [#2117]

removed

  • config Two scenario config files (damagepaper) were used for the NGFS runs but are not needed anymore. [#2107]
  • 45_carbonprice/46_carbonpriceRegi remove reading in and printing contents of fm_histShare.cs3r

[3.5.0] - 2025-04-04

added

  • Possibility of using updated sources for baseline non-CO2 emissions calculation, controlled by cm_emifacs_baseyear
  • Add readcoupled script that allows to print data from gdx files or mif files for all coupled runs [#1977, #1990]
  • Add scripts/start/checkSettingsRemMag.R to check compatibility of REMIND and MAgPIE settings with respect to GDP, Population, bioenergy phaseout and damage settings [#2028]

input data/calibration

  • new input data rev7.21 including new MAgPIE data [#1956]
  • new input data rev7.24 including IEA update [#1992]
  • add CES parameters for SSP3 with imperfect capital markets [#1995]

changed

  • config updated ScenarioMIP config [#1972]
  • scripts for MAgPIE coupled runs, if the coupled config contains a path_gdx_ref column, it needs a path_gdx_refpolicycost column as well. [#1940]
  • scripts make the selection of variables and equations that are fixed on reference run automatic [#2033] -_scripts You can define timesteps in xlsx_IIASA export script. Defaults to REMIND standard. If you want interpolation between timesteps, you need to adjust it. [#2056]
  • core merge cm_GDPscen and cm_POPscen into cm_GDPpopScen [#1973]
  • 45_carbonprice realization 'none' only sets carbon price to 0 for t >= cm_startyear [#2056]
  • scripts Updated renv version from to 1.1.1 to 1.1.4 [#2065]
  • scripts let the release script add a renv.lock to each new release [#2058]
  • scripts Redesigned pull request template. No lines to delete anymore. Checkboxes only in the checklist. [#2063]

added

removed

  • 37_industry removed superseded realization fixed_shares [#1941]
  • last traces of SSP2EU scenario which is superseeded by SSP2 [#2028]

fixed

  • 37_industry fix and restructure chemical feedstock balancing to account for all negative emissions from stored non-fossil carbon [#1829]
  • 05_initialCap fix pe2se gas emissions factors for DEU [#2109]

[3.4.0] - 2024-12-11

input data/calibration

  • new input data rev6.84 [#1757]
  • new input data rev6.95 in US$2017 [#1812]
  • new input data rev7.13 including new MAgPIE emulators [#1886]
  • CES parameter and gdx files calibrated with new default diffLin2Lin for NPi [#1747] and [#1757]
  • Update of NDC goals with cutoff data August 31, 2024 [#1816]
  • Prepare to make input data available for externals. Do not stop on missing validation data. [1828]

changed

  • shift base unit from US$2005 to US$2017 [#1812]
  • plastic waste by default does not lag plastics production by ten years anymore; can be re-activated using cm_wastelag
  • moved to edgeTransport 2.0 version [#1749]
  • scripts in readCheckScenarioConfig(), do not automatically remove path_gdx_bau if allegedly 'not needed' [#1809]
  • scripts adjust MAgPIE coupling to US$2005 -> 2017 shift [#1851]
  • core changed adjustment cost of geohe (central heat pumps), elh2 (electrolysis), MeOH (FT-Synthesis: H2-to-Liquids) and h22ch4 (methanation: H2-to-Gas) to better reflect upscaling dynamics [#1823]
  • core increase electrolysis CAPEX and slightly adjust default setting for electrolysis taxation and flexibility benefit, add near-term bounds for electrolysis and synthetic fuel deployment [#1882]
  • core update co2 capture rates and cost of biomass liquids and gas and some other X-to-Liq/Gas technologies to be internally consistent [#1881]

added

  • config add ScenarioMIP config [#1894] and [#1920]
  • 32_power increase minimum required dispatchable back-up capacity for VRE integration [#1789]
  • 33_CDR added ocean alkalinity enhancement to the CDR portfolio (OAE is turned off by default) [#1777]
  • 45_carbonprice added realization functionalForm [#1874] and [#1723]
  • 45_carbonprice added realizations NPi2025, NPi2025expo and NPiexpo [#1851] and [#1888]
  • 50_damages, 51_internalizeDamages add KotzWenz realization based on Kotz & Wenz (2024) [#1601]
  • config add ELEVATE2p3 config [#1851]
  • scripts define defaults for script selections in output.R [#1739]
  • scripts fail transparently on duplicated column names in scenario_config*.csv files [#1742]
  • scripts checkProjectSummations now also checks whether global intensive variables (prices) lie between regional min/max [#1773]
  • scripts add support for EDGE-Transport standalone results to cs2 [#1780]
  • scripts add option to use raw land-use change emissions variable in coupled runs [#1796]
  • testthat fail if manipulating main.gms with default cfg drops/changes switches and comments [#1764] and [#1767]
  • scripts integrate automated scenario validation via piamValidation as output script [#1790]
  • scripts add interactive plotting script 'selectPlots' [#1815]
  • scripts in readCheckScenarioConfig() while running tests, check if all scenarios stated in path_gdx* columns exist [#1818]
  • scripts fail transparently if cm_startyear is earlier than that of path_gdx_ref [#1851]
  • testthat ignore missing historical.mif in tests because it is an optional input file [#1857]
  • scripts Add scripts for preparing a release [#1871]

fixed

  • 30_biomass reset 1st gen. biofuel bound from 2045 to 2030 [#1890]
  • 37_industry included CCS from plastic waste incineration in CCS mass flows so it is subject to injection constraints (but did not add CCS costs, see https://github.com/remindmodel/development_issues/issues/274
  • MAGICC7 fix climate data for time before cm_startyear on reference run [#1744]
  • scripts fix tax convergence reporting in modelSummary [#1728]
  • scripts cleanup non-existing realizations from settings_config.csv [#1718]
  • scripts REMIND-MAgPIE start scripts now correctly use all non-gms cfg switches [#1768]
  • scripts limit slurm runtime of output.R scripts to 2 hours [#1783]

removed

  • 45_carbonprice removed superseded realizations linear, exponential and diffCurvPhaseIn2Lin [#1858]

[3.3.2] - 2024-07-04

changed

  • fix output generation [#1715]

[3.3.1] - 2024-06-18

changed

  • new input data (6.77) including new GDP and population data [#83] [#1684]
  • 37_industry remove subsector-specific shares of SE origins in FE carriers for performance reasons [#1659]
  • 37_industry make process-based steel production model the default over the ces-based model [#1663]
  • 37_industry fixed incineration of plastic and non-plastic waste causing non-zero emissions for biomass and synfuels [#1682]
  • core another change of preference parameters and associated computation of interest rates/mark ups [#1663]
  • scripts do not check anymore that MAgPIE uses renv [1646]
  • scripts adjust function calls after moving functionality from remind2 [#578] to piamPlotComparison and piamutils [#1661]
  • scripts enhance output script reportCEScalib to include additional plot formats [#1671]

added

  • 24_trade add optinal trade scenario for EUR hydrogen and e-liquids imports [#1666]

[3.3.0] - 2024-03-28

changed

  • 37_industry changed industry to have subsector-specific shares of SE origins in FE carriers [#1620]

added

  • config regex tests for many parameters [#1356]
  • 21_tax add SE tax on electricity going into electrolysis for hydrogen production
  • 32_power extend and reparameterize flexibility tax implementation for electrolysis for hydrogen production
  • 37_industry add feedstocks for chemicals subsector and plastics production
  • 37_industry add process-based steel model as alternative to CES-tree branch
  • 47_regipol add support for delaying quantity targets and improving regional emission tax convergence
  • core add process emissions from chemicals subsector and from plastics incineration
  • core change of preference parameters and associated computation of interest rates/mark ups
  • scripts add script to check fixing of runs to reference run [#1410]
  • scripts add script for cost decomposition of integrated damage runs [#1445]
  • scripts add script to automatically check project summations from piamInterfaces [#1587]
  • scripts add MAGICCv7.5.3 with AR6 settings as output script, add compareScenarios2 option [#1475], [#1615]
  • scripts add 'make test-fix' which runs codeCheck in interactive mode, adjusting not_used.txt files [#1625]
  • testthat test and compile all config files [#1356]
  • testthat test existence of all required input data [#1577]
  • 80_optimization For Nash mode: after infeasibilities continue in debug mode before aborting [#1636]

fixed

  • 26_agCosts 30_biomass fully fix landuse and MAGICC6 variables in delayed transition runs to reference run [#1565]
  • 36_buildings prevent traditional biomass spillover to other sectors than buildings [#1519]
  • 37_industry fixed weights of energy carriers in pm_IndstCO2Captured [#1354]
  • core switch off MAgPIE emission abatement for 45/NPi realization [#1401]
  • scripts let preempted and resumed runs start their subsequent runs [#1414]
  • scripts '--test' mode for start.R and start_bundle_coupled.R does not write RData files anymore [#1500]
  • reporting correctly report Tech|*|Capital Costs|w/ Adj Costs for t < cm_startyear [#1429, #1476]

removed

  • 35_transport remove outdated realization: complex [#1543]
  • 36_buildings remove outdated realizations: services_putty, services_with_capital [#1509]
  • 45_carbonprice remove outdated realizations: NDC2constant, NPi2018, diffPhaseIn2Constant, diffPhaseIn2Lin, diffPhaseInLin2LinFlex, diffPriceSameCost [#1480]

3.2.1 - 2023-07-13 (incomplete)

changed

  • documentation MAgPIE coupling, DIETER coupling, input changes
  • config NGFS_v4, SHAPE
  • scripts re-enable summation checks for IIASA submission
  • inputs update of landuse emissions and costs using MAgPIE 4.6.8, mrcommons 1.32.0, input data rev6.543
  • scripts MAgPIE coupling interface: replace old MAgPIE cost variable
  • scripts MAgPIE coupling interface: remove filtering of negative LU emissions
  • scripts ./start.R --gamscompile now adjust sets and gets input data
  • core MAgPIE coupling: tolerate negative values for n2ofertsom and deactivate its MAC
  • 05_initialCap fix overwriting of investment cost changes from cm_inco0Factor switch
  • core fix bug that emissions from gas use in transport were not accounted

added

  • 45_carbonprice added realization NPi (National Policies Implemented)
  • 47_carbonpriceRegi now supports BECCS quantity targets
  • MAgPIE coupling added qos=auto mode
  • MAgPIE coupling added renv support mode

removed

  • scripts removed .snapshot.Rprofile and snapshot support, renv now fully supersedes snapshots