Army 91D MOS: Tactical Power Generation Specialist

In today’s post, I’m going to educate you about the Army 91D MOS, the Tactical Power Generation Specialist. 

Here’s a brief description of the MOS, from two different trusted websites.

The Tactical Power Generation Specialist supervises operation and performs field level maintenance functions, including overhaul, but not rebuild of power generation equipment, internal combustion engines and associated equipment up through 200KW (except for turbine engine driven generators). ~


91D involves tactical power generation. Power generation is the set of mechanisms and processes necessary to move electrical energy from its generation point to a point where it can accommodate the power demands of an electrical load. This MOS encompasses all aspects of tactical power generation, including development, production, delivery, storage, and use. Additionally, these services are required to provide guidance for units on tactical power generation.

This MOS provides opportunities for individuals with experience in all areas of Tactical Power Generation to develop technical skills to meet the growing demand for tactical power generators by developing strategies that are cost-effective and provide optimum performance. This requires planning that addresses potential growth/expansion needs over the next 20 years. ~ Hood MWR

army 91d mos

Army 91D MOS Overview

In the paragraphs below, I will cover six different good to know things about the Army 91D MOS.

# 1: Primary Responsibilities

Here are some of the key responsibilities of a 91D.

  • Conduct field or sustainment level maintenance on power generation sets, internal combustion engines, tactical utilities, and similar equipment.
  • Perform work on mobile and stationary power plants.
  • Service, repair, troubleshoot, and overhaul equipment such as starters, switches, alternators, fuel injectors, generators, voltage regulators, and control circuits.
  • Maintenance Management & Quality Control.

Here is a good Army 91D MOS Job Description I found over at

Senior Power Generation Equipment Repairer
Serves as the Senior Power Generation Equipment repairer for Headquarters and Headquarters Battalion; responsible for the training, mentorship, counseling, health, and welfare of three Soldiers; Coordinates Scheduled and Unscheduled maintenance for 103 pieces of Ground Support Equipment worth over $3,700,000; responsible for disposition, evacuation, and transportation of all equipment that require higher echelon maintenance; provides technical guidance in areas of Field and Sustainment level maintenance including servicing, troubleshooting, and repairing Power Generation Equipment.

# 2: Training

To become a 91D, Soldiers must complete 10 weeks of Basic Combat Training (BCT) and 11 weeks of Advanced Individual Training (AIT) at Fort Lee, Virginia. AIT will consist of part classroom and part in the field learning first hand. Upon completion of AIT at Fort Lee, you will be assigned to a respective Active Duty, Army Reserve, or National Guard unit. While assigned to the unit, you will receive on-the-job-training to help round out your skills and experience.

# 3: Qualifications

Job qualifications for the 91D MOS consist of:

  • Very heavy physical demands.
  • PULHES – 221121.
  • Do not need to be a United States citizen.
  • No security clearance required.
  • ASVAB scores – either General Maintenance (GM) of 98 or General Maintenance (GM) of 88 and General Technical (GT) of 88.

For MOS 91D, you’ll need either a 98 in the general mechanical (GM) aptitude area of the ASVAB or an 88 in GM and an 88 in the general technical (GT) area. There’s no Department of Defense security clearance required for this job, but normal color vision (no colorblindness) is required for soldiers doing this work. If you have experience using or repairing hand and power tools, you’ll be a step ahead of the game. Interest in electricity will be useful, and if you’ve ever worked with large machines, or are interested in doing so, this job should be a good fit for you. ~ The Balance Careers

# 4: Career Opportunities

The 91D MOS offers many wonderful career opportunities inside and outside of the military. Some of your career opportunities inside the military could include:

You could hold a variety of these positions throughout a 20-year military career (other than the last two). Most of these opportunities would happen after you reached the rank of Sergeant. At that point, you could stay in current career field, get a new MOS, or take on one of these additional specialties.

Outside of the military, after you honorably complete your military service obligation, you could could find several high paying jobs such as:

  • Government Contractor
  • Electrician
  • Small Engine Repair
  • Wind Turbine Mechanic
  • Industrial Mechanic
  • General Maintenance & Repair

Some of these jobs could require additional licensing or certification, but would be well worth it.

Even better, you could take your knowledge and start your own business!

# 5: Skills You Will Learn

Here are some of the basic skills you will learn as a Army 91D.

  • Generator and power plant operations.
  • Electrical generation and distribution.
  • Diesel generator operation, disassembly, inspection and maintenance.
  • Principles of electrical and electronic circuitry.
  • and much more.

Just reading these skills proves to me how awesome the 91D MOS is. Basically, you will learn a valuable trade you can use ANYWHERE, to find a good job.

# 6: Additional Skill Identifiers

It is always a plus to add to your skills once you attain your MOS. For the Army 91D, recommended additional skills you may want to achieve are:

  • MAST and Electric Power Plant Maintenance. (C9)
  • Unmanned Aerial Vehicle Repairer. (U2)
  • and Hunter Unmanned Aerial Vehicle Repair. (U3)

Final Thoughts

In conclusion, the Army 91D MOS (Tactical Power Generation Specialist) is an important job in the U.S. Army. Is it a sexy job? Probably not! But will you stay busy in your primary responsibilities? I would say so!

Even better, the possibilities of a high paying career after honorable Army service are immense.

So tell us, are you or were you a 91D? what your experience was like. I would love to learn more about it so we can educate our website visitors. Just leave a comment below to share your thoughts. Thank you.

Other posts you may enjoy:
  1. Army 13T MOS: Field Artillery Surveyor/Meteorological Crewmember
  2. and Army Leadership Principles for Officers and NCOs
  3. Army 14H MOS: Air Defense Enhanced Early Warning System Operator
  4. Top 20 Army Qualification Badges
chuck holmes

Chuck Holmes
Former Army Major (resigned)

Suggested Resources:

  • Drop the Belly Fat Today! Decrease cravings. Lose weight and feel great. Learn how.
  • The # 1 Health Product you need, but haven't heard of before! Get the info.
  • My Favorite Cup of Coffee. You've got to try this SMART COFFEE. Learn more.
  • The # 1 Home Business for 2024 & Beyond! Daily Pay. Take the free tour.
  • Get Paid to Shop Online. It's 100% free forever. Earn $30 per referral. Learn more.

1 thought on “Army 91D MOS: Tactical Power Generation Specialist”

  1. I’m not a good mechanic or engineer but I just love this whole story about 91D MOS . But in reality I really wanna learn how to work with engine like 91D MOS did. Some how I wish I could join and train in this 91D

Leave a Comment

Your email address will not be published. Required fields are marked *