This chapter introduces concepts of DC MicroGrids exposing their elements, features, modeling, control, and applications. Renewable energy sources, en-ergy storage systems, and loads are the basics components of a DC MicroGrid. However, a new concept is emerging, as the electrical distribution networks characterized by DC transmission are beginning to be considered as a promising solution due to technological advances. These components can be better integrated thanks to their DC feature. With the goal of supporting a long-term lunar base, Sandia National Laboratories (SNL) and the National Aeronautics and Space Administration (NASA) collaborated to develop and evaluate resilient direct current (DC) microgrids that included power electronics-based interconnections from multiple DC. However, with the rise of distributed energy resources, controlled energy flows, and motor power recuperation for reduced system losses, DC microgrids have emerged as a compelling alternative. This paper introduces DC microgrids, their implementation in industrial applications, and several Texas. This refers to the use of DC voltage to supply energy to industrial plants, for example to optimize energy efficiency in production, but also to ensure grid quality and security of supply – an important step towards climate-neutral production.