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The purpose of the Reference Manual is to lay out the full details of the TIMES model, including data specification, internal data structures, and mathematical formulation of the model’s Linear Program (LP) formulation, as well as the Mixed Integer Programming (MIP) formulations required by some of its options. As such, it provides the TIMES modeller/programmer with sufficiently detailed information to fully understand the nature and purpose of the data components, model equations and variables. A solid understanding of the material in this Manual is a necessary prerequisite for anyone considering making programming changes in the TIMES source code.

The Reference Manual is organized as follows: Chapter 1 Basic notation and conventions: lays the groundwork for understanding the rest of the material in the Reference Manual; Chapter 2 Sets: explains the meaning and role of various sets that identify how the model components are grouped according to their nature (eg demand devices, power plants, energy carriers, etc.) in a TIMES model; Chapter 3 Parameters: elaborates the details related to the user-provided numerical data, as well as the internally constructed data structures, used by the model generator (and report writer) to derive the coefficients of the LP matrix (and prepare the results for analysis);