Here is an example of what can be done with the \compress
macro (found on this site), which makes LaTeX believe we're at the beginning of a minipage, so that a list adds no vertical spacing, and a customised list with the enumitem
package:
\documentclass{article}
\usepackage{caption, tabularx}
\usepackage{enumitem, ragged2e}
\usepackage[svgnames]{xcolor}
\makeatletter
\newcommand*{\compress}{\@minipagetrue}
\makeatother
\begin{document}
\begin{table}[!htb]
\centering
\setlist[itemize]{font= \color{DeepSkyBlue}, wide, leftmargin=*, noitemsep, after=\vspace*{-\topsep}}
\setlength{\extrarowheight}{3pt}
\setlength{\tabcolsep}{3pt}
\caption{Summary of advantages and disadvantages of HEP configurations}
\label{my-label}
\begin{tabularx}{\textwidth}{|p{15mm}|*{2}{>{\compress\RaggedRight\arraybackslash} X |}}
\hline
HEP con\-figuration & Advantages & Disadvantages \\
\hline
Turbo-electric
& \begin{itemize}
\item Does not depend on ad\-van\-ces of energy storage technologies
\item High design freedom for pro\-pulsional-aircraft integration
\end{itemize}
& \begin{itemize}
\item High weight and low efficiency
\item Gas turbine engine is sized for peak power conditions
\item Depends on advances in HTS maaterial technology
\end{itemize} \\
\hline
\end{tabularx}
\end{table}
\end{document}
