REMIND: The Equations

This document describes the equations of the Integrated Assessment Model REMIND and represents a complement to the non-technical model description in Luderer et al. (2015). REMIND is developed as a modular framework of a multi-region energy-economy-climate model. The current framework provides a number of features that allows the representation of energy carriers and conversion technologies with various techno-economic characteristics. Moreover, the macroeconomic part contains a nested CES function that can have any structure. The regional models are solved as optimal growth models with equilibrium at the energy and capital markets. The present documentation introduces, jointly with the mathematical presentation of model equations, the GAMS notation of the model code. It gives an introduction to the abstract structure of the model and the modeling possibilities. The present documentation does not introduce the particular realization of a model version. Hence, the documentation opens up the possibility to implement individual model realizations.