\documentclass[]{nrel}
%%%%% Package options place in square brackets
% singleAppendix -- format TOC and appendix chapters without lettering
% draft -- add watermark "draft"
% confidential -- change footer to state contents are confidential
% -----------------------------------
% DOCUMENT PROPERTIES
% -----------------------------------
\title{Writing NREL documents using LaTeX (modified for CHPB)}
\author{A. Clifton, M. Dennis, A. Platt, P. Fleming, M. Lawson}
\def \projectnumber {CHPB-53-2021}
\def \PIs{John Doe, Jane Doe}
\def \PMSmembers{Name A (Company A), \\ Name B (Company B)}
\addbibresource{refs.bib} %<--------- add bibliographic items to this file
\setcounter{tocdepth}{2}
% -------------------------------------
% DOCUMENT STARTS HERE
% -------------------------------------
\begin{document}
\frontmatter
%%%%%%%%%%%%%%%%%%%%%%%%%%%
\chapter{Executive Summary}
% <text>
%%%%%%%%%%%%%%%%%%%%%%%%%%%
\chapter{Acknowledgments}
% <text>
% %%%%%%%%%%%%%%%%%%%%%%%%%%%
% \chapter{List of Acronyms} %<--------- Uncomment this section if adding acronyms
% \begin{acronym}[ICANN]
% \acro {DOE} {Department of Energy}
% \acro {NREL} {National Renewable Energy Laboratory}
% \end{acronym}
\clearpage
\tableofcontents
\listoffigures
\listoftables
\mainmatter
\pagestyle{fancy}
\chapter{Introduction} %<--------- NREL report's highest level is Chapter, followed by section, and subsection. Subsubsections can be used, but WILL NOT appear in the table of contents (TOC)
\label{sec:intro}
% <text>
% \section{<xx>}
% \label{sec:<xx>}
% <text>
% \subsection{<xx>}
% \label{sec:<xx>}
% <text>
%%%%%%%%%%%%%%%%%%
\chapter{Theory}
\label{sec:theory}
% <text>
%%%%%%%%%%%%%%%%%%
\chapter{Experimental Setup}
\label{sec:exp}
% <text>
%%%%%%%%%%%%%%%%%%
\chapter{Results}
\label{sec:results}
% <text>
%%%%%%%%%%%%%%%%%%
\chapter{Conclusions}
\label{sec:conc}
% <text>
%%%%%%%%%%%%%%%%%%
% bibliography
\cleardoublepage
\label{sec:Bib}
\nocite{*} %<--------- This command prints all entries in the bib file. Remove to cite only references cited in the report
% heading=bibintoc,
\printbibliography[title={\LARGE References}]
\addcontentsline{toc}{chapter}{References}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{appendices} %<--------- All chapters after this will be labeled as appendices
% Reset the figure and table numbering to be A.1, etc.
\counterwithin{figure}{chapter}
\counterwithin{table}{chapter}
\appchapter{Supplemental Information}
\label{app:A}
\appchapter{Even More Supplemental Information}
\label{app:B}
\end{appendices}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\end{document}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%% Example figure, list, and table environments %%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %%% Example figure
% \begin{figure}[h] %<--------- placement options are (h)ere, (t)op, (b)ottom, (p)age. More than one option may be supplied.
% \centering
% \includegraphics[width=\columnwidth]{example-image-a} %<--------- path to graphics. Usually figures/<name of figure>
% \caption[Optional short caption for LOF]{Actual caption for figure}
% \label{fig:fig1}
% \end{figure}
% %%% Example subfigure
% \begin{figure}[h]
% \centering
% \begin{subfigure}[b]{0.48\columnwidth}
% \includegraphics[width=\columnwidth]{example-image-b}
% \caption{}
% \label{fig:}
% \end{subfigure}
% \hfill
% \begin{subfigure}[b]{0.48\columnwidth}
% \includegraphics[width=\columnwidth]{example-image-c}
% \caption{}
% \label{fig:}
% \end{subfigure}
% \caption}
% \label{fig:}
% \end{figure}
% %%% Example list
% \begin{itemize}
% \item item 1
% \item item 2
% \end{itemize}
% %%% Example table
% \begin{table}
% \caption[Optional short table caption for LOT]{Actual table caption}
% \label{tab:tab1}
% \centering
% \begin{tabular}{ccc}
% \hline
% a & b & c\\
% d & e & f \\
% \end{tabular}
% \end{table}
