Marine Corps Expeditionary Energy Office


Marine Corps Expeditionary Energy Office

HQMC Combat Development & Integration

Happening Now

E2O Successfully Demonstrates the Tactical Aviation Ground Refueling System at Weapons and Tactics Instructor Course 1-19 (OCT 12, 2018)

  • The TAGRS is a mobile, rapid ground refueling system that significantly improves the Marine Wing Support Squadron's ability to conduct Forward Arming and Refueling Point operations in support of aviation operations forward of established airfields.
  • This demonstration improved on current capabilities of the Helicopter Expedient Refueling System (HERS) by reducing setup time by 90% and the total refueling time by 50% while refueling AH-1Z Cobras and AV-8B Harriers during WTI.
  • Future developments of this system will include air-certification for use on the MV-22 and CH-53 and a modular collapsible fuel containment system.

E2O Conducted The First of Two Limited Technical Assessments (LTA) for the Mobile Amphibious Assault Fuel Distribution Initiative

  • These LTAs validated the capability to transfer bulk liquid between storage containers installed within an Improved Navy Lighterage System (INLS), containers on the deck of a Landing Craft Utility (LCU), and Dracone fuel storage systems via a maritime buoy pump.
  • This Joint LTA was held at Naval Amphibious Base in Coronado, CA and was supported by Naval Beach Group 1 (NBG-1), Expeditionary Warfare Training Group Pacific (EWTGPAC), Amphibious Construction Battalion 1 (ACB-1), and Assault Craft Unit 1 (ACU-1).
  • E2O will conduct a second LTA at NAB Coronado, CA to demonstrate the capability to transfer bulk liquid between these Navy craft and a marine Corps bulk fuel unit situated on the beachhead. For more information on the LTA2, see the Inside Defense Article.

3/2 Marines Utilizing GREENS during ITX
  • Marines with 3rd Battalion, 2nd Marine Regiment (3/2) utilized the Ground Renewable Expeditionary Energy Network System (GREENS) at Camp Wilson, Twentynine Palms, CA during the Integrated Training Exercise (ITX).
  • For a week before receiving generators from the ITX issue point, 3/2 powered vital equipment utilizing GREENS.
  • Following receipt of generators, a Quonset hut providing relay switches lost power and the GREENS continued to provide power to that building for uninterrupted operations.



To increase the operational reach of the 2024 MEB/MEF through operational energy risk analysis and development of technology and training to inform future concepts and capabilities.

Analyze, develop, and direct the Marine Corps’ energy strategy in order to optimize expeditionary capabilities across all warfighting functions.

Further, E2O’s role is to advise the Marine Requirements Oversight Council (MROC) on all energy and resource related requirements, acquisitions, and programmatic decisions. E2O serves as the Functional Advocate for Operational Energy.