# Abbreviations

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**In brief** — This page lists the abbreviations and acronyms used throughout the OPEN-PROM documentation, with their full meanings.
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* - Abbreviation
  - Meaning
* - AFOLU
  - Agriculture, Forestry, and Other Land Use
* - BECCS
  - BioEnergy with Carbon Capture and Storage
* - BEV
  - Battery Electric Vehicle
* - CAPEX
  - Capital Expenditure
* - CCS
  - Carbon Capture and Storage
* - CDD
  - Cooling Degree Days
* - CDR
  - Carbon Dioxide Removal
* - CEP
  - Capacity Expansion Planning
* - CGE
  - Computable General Equilibrium
* - CHP
  - Combined Heat and Power
* - CNG
  - Compressed Natural Gas
* - CSP
  - Concentrated Solar Power
* - DAC
  - Direct Air Capture
* - EU
  - European Union
* - FCEV
  - Fuel Cell Electric Vehicle
* - FTT:Heat
  - Future Technology Transformations: Heat (energy system model)
* - GDP
  - Gross Domestic Product
* - GEP
  - Generation Expansion Planning
* - HDD
  - Heating Degree Days
* - HEV
  - Hybrid Electric Vehicle
* - ICEV
  - Internal Combustion Engine Vehicle
* - ICT
  - Information and Communication Technology
* - IEA
  - International Energy Agency
* - IRF
  - International Road Federation
* - IRP
  - Integrated Resource Planning
* - LPG
  - Liquefied Petroleum Gas
* - LTS
  - Long-Term Strategy
* - MADRaT
  - May All Data be Reproducible and Transparent
* - MAgPIE
  - Model of Agricultural Production and its Impact on the Environment
* - METEOR
  - Multivariate Emulation of Time-Evolving and Overlapping Responses
* - NDC
  - Nationally Determined Contribution
* - NECP
  - National Energy and Climate Plans
* - NT
  - National Trends
* - O&M
  - Operation and Maintenance
* - openTEPES
  - Open Generation, Storage, and Transmission Operation and Expansion Planning Model with RES and ESS
* - OPEX
  - Operating Expenditure
* - PHEV
  - Plug-in Hybrid Electric Vehicle
* - SEP
  - Storage Expansion Planning
* - TEP
  - Transmission Expansion Planning
* - WDI
  - World Development Indicators
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