our specialities

Relevant experience with industrial electrical projects and most qualified E/I&C capabilities...

Diep Nguyen has actively served in various positions  as Chairman of the IEEE Power Engineering Society and Sr. Director of the OEB Executive Committee...

"Diep, you are the best!"
-John Prete, PE  
(SFPUC Construction Manager)

"You provided a very good design and excellent support."
-Maurice Atendido, PE
(DSRSD Sr. Electrical Engineer)

DTN Engineers, Inc. offers consulting services primarily in electrical engineering with focused wastewater facilities. Our in-house licensed professionals include electrical, fire protection, control system engineers, mechanical engineers and registered architects. Other disciplines can be supplemented from affiliated engineering firms as needed.

We specialize
•  Building electrical systems
•  Power system design and studies
•  Emergency and standby power engineering
•  Motor controls and variable frequency drives (600V to 4,160V)
•  Fire alarm and extinguishing systems, security systems
•  Site and roadway lighting
•  Communications and security systems
•  Control system and SCADA design
•  Industrial automation
•  Cogeneration systems
•  Construction support services
•  Feasibility studies
•  Electrical value engineering
•  PLC/HMI software engineering
•  PV Solar power systems
•  Arc Flash hazard analysis and studies
•  Electrical system upgrades   >>View projects

design process

Our work process is fast and easy wih 5 basis steps below. Besides, there are more details and interactions between DTN and client that based on the challenge element constraints on each design of the project.


Field visit

On-site visit to evaluate existing buildings and structures, also perform inventory survey and evaluation for power and control systems.




Provide a detailed, pre-design technical memo randum of the facilities and provide recommandation for design criteria.



Prepare detailed design plans and technical specifications for construction of recommended items from the technical memorandum. The design submittal in 25%, 50%, 90%, and final.



Final design document will be provided: plans, design calculations, and cost estimate for project. The PE stamp and signatures are also included in the drawings.



Participation in the pre-bid meeting, answering contractor questions, and assisting the Client in recommending award of contract.

cad desigN & software

To support for the design, our team have excellent drafting skills in 2D as well as 3D with the most drafting software in the market including: AutoCAD, MicroStation, Orcad, SolidWork, Revit, Photoshop, Illustrator, and Indesign. We are also familiar and have used following application software: SKM, Power System Analysis (PSA), Pspice, Tutsim, Lotus 123, Dbase III, MS Word, MS Excel, MS Project, MS Power Point, US DATA FactoryLinks, Modicon PLCs, Wonderware Intouch...