Mein LaTeX-Forum

\documentclass[...]
\usepackage{acronym}
 \usepackage[acronym, toc, shortcuts]{glossaries}
    \newglossary[slg]{symbolslist}{syi}{syg}{Symbols}
    \makeglossaries

    \input{content/acronyms}
    \input{content/symbols}

    \newglossarystyle{acronym}{    
        \renewenvironment{theglossary}      
            {\begin{longtable}[l]{ll}}
            {\end{longtable}}
        \renewcommand*{\glossaryheader}{}  
        \renewcommand*{\glsgroupheading}[1]{}    
        \renewcommand*{\glossaryentryfield}[5]{\glstarget{##1}{##2} & ##3 \\ }      
        \renewcommand*{\glsgroupskip}{\\}                  
   }

\newglossarystyle{symbol}{                                
        \renewenvironment{theglossary}                    
            {\begin{longtable}[l]{lll}}
            {\end{longtable}}
        \renewcommand*{\glossaryheader}{}
        \renewcommand*{\glsgroupheading}[1]{}                                                        
        \renewcommand*{\glossaryentryfield}[5]{\\ \multicolumn{3}{l}{\glstarget{##1}{##2}} \\ \\}
        \renewcommand*{\glossarysubentryfield}[6]{\glstarget{##2}{##3} & $ \si{##5} $ & ##4 \\}
        \renewcommand*{\glsgroupskip}{\\}
    }

\begin{document}
\frontmatter
\printacronyms
\printglossaries
\mainmatter                                        
\include{content/Paper}
\end{document}

 \newacronym{acr:DSM}{DSM}{Demand Side Management}

The feed-in of fluctuating renewable energies must, therefore, be compensated by so-called flexibility options, which include flexible and controllable generation, storage and \ac{acr:DSM} measures.