Military Energy Security Act or the MESA Act - Directs the Secretary of Defense (DOD) to carry out a collaborative energy security pilot program involving one or more partnerships between a military installation and a national laboratory, for the purpose of evaluating and validating secure, salable microgrid components and systems for deployment. Requires the Secretary and the Secretary of Energy (DOE) to jointly select a military installation and national laboratory for such purposes.
Requires an initial and final pilot program report from the Secretary to the congressional defense and energy committees.