Student Experience: Dan Walter

“I'd already earned a bachelor’s degree in mechanical engineering from LeTourneau University, but after about three years sitting behind a desk designing construction equipment, I knew I wanted to run my own business. Energy efficiency is something I’ve always been interested in, so it made sense when I was looking for a business idea. 

“Although we offer several products and services that reduce energy usage, air conditioning is a big part of our business. I took all of the air conditioning courses because I wanted to further my knowledge in the field. The best part of my experience was interacting with the faculty; they were just so knowledgeable. David Eishen (now retired) was the biggest reason I joined the program; he really got me involved in the Green Building Institute. 

“I would recommend this program because it gives you a good background in air conditioning. Probably 70% of technicians out there don’t have a good idea of how air conditioning works. They’re taught what to do to make systems work, but they don’t have real understanding of what they’re doing. 

“If you want to start your own business, do what you’re passionate about, and you’ll probably be successful.”   

Dan Walter earned a Residential - Technician III certificate. He is certified by the International Code Council (ICC) to perform both plan reviews and inspections on residential buildings.

His company, Duncanville-based Energy Efficient Solutions, offers services that include energy audits and duct testing in addition to International Energy Conservation Code (IECC) compliance. He has also taught courses as an adjunct instructor at the Residential Building Performance Technology program.


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Alonzo Adams

Alonzo L. Adams

Self-Employed Mechanic Adjunct Automotive Technology Faculty Cedar Valley
“I was eager to learn, and the Diesel program really excited me. The more I learned, the more I realize it’s not so hard. All of my instructors have been knowledgeable; any questions I had for them, they were pretty much able to answer everything. These are great courses if you want to work on diesel engines.”
Automotive, Automotive Technology, Automotive Technology - Diesel and Heavy Equipment
Rafael Merren

Rafael Merren

Owner/Operator Grump’s Rod Shop
“It’s great to have intelligent capabilities, but if you don’t have the skillsets to back them up, what’s the point of going out into the real world? If you have a practical skill, you can always put bread on the table.”
Auto Body Technology
Kathryn Jaeger

Kathryn Jaeger

Technician, Trophy Nissan of Mesquite
“People look at a car and open the hood and see all the hoses and connections, and maybe think, ‘I am never going to figure this out.' Then you learn the basic concepts, and it’s more simplistic than you would think.”
Automotive Technology
Doug Jochum

Doug Jochum

Art Teacher Skyline High School
“The students here are also attentive and helpful — I found out right away that there’s a group of them who have been here a while and who will chip in to help you do anything you don’t understand or help hold something you’re working on. I think that attitude is a reflection of the teaching here as well.”
Welding
Dan Walter
Dan Walter
Owner Energy Efficient Solutions

Air Conditioning and Refrigeration Technology
School of Manufacturing and Industrial Technology
Updated July 28, 2026