M.C. Dean offers the industry's most comprehensive package of Energy Services, drawing from over fifty years of experience in the design, construction and maintenance of all levels of power systems. This extensive experience enables us to provide system solutions to clients of all sizes and complexity.

Our capabilities include:


Power Systems Construction

M.C. Dean boasts vast experience in the construction of complex power distribution systems. M.C. Dean has the proven background and ability to provide assistance with all levels of design and the complete implementation of construction and maintenance projects. Our capabilities in this field include:

  • High Voltage Line Construction
  • Substation Structures
  • Switchgear Installation, Replacement, & Retrofit
    • Oil, Vacuum, SF6 Breakers
  • Transformer Installation & Replacement
    • Oil, Silicon, Cast Coil Dry Type
    • Network & Loop Type
  • Bus Duct Feeders
  • Electronic Metering
  • Advanced Relaying & Supervisory Schemes

As a part of our high voltage services, we offer the complete installation, splicing, termination and testing of high voltage cabling systems of all insulation types, including lead splices and potheads. Our cable installers are factory-trained and certified to perform both splices and terminations up to 35 kV. Furthermore, we own and operate our own aerial and underground cable installing machinery and equipment.

M.C. Dean is also qualified to work with PCB Transformers. Our experience with industrial power distribution projects lead M.C. Dean to be one of the industry pioneers in the removal and replacement of PCB contaminated transformers. We have performed or managed all facets of this work since 1983, and we are proud of our reputation in the removal, replacement, remediation, disposal, flushing and retrofilling of PCB contaminated electrical equipment. Furthermore, we are knowledgeable of and strictly adhere to the EPA regulations regarding these hazardous substances.

Additionally, M.C. Dean performs a variety of lighting services including indoor, outdoor and specialty lighting projects. M.C. Dean can design lighting systems to meet individual facility or client needs.

Specialty Lighting

  • Exhibit Lighting
  • Theatre Lighting
  • Landscape Lighting
  • Accent Lighting
  • Advanced Lighting Control
  • Photoelectric Daylight Dimming
  • Time-of-day
  • Motion Sensing
  • Capacitance Sensing
  • Computer Controlled
  • Energy Saving Upgrades
  • Shared Savings & Rebate Programs

Outdoor Lighting

  • Athletic Field Lighting
  • Airfield Lighting
  • Runway Series Loops
  • Taxiway Guidance
  • Aircraft Approach Lighting
  • Parking Lot Lighting
  • Street Lighting
  • High Mast Highway Lighting
  • Ornamental Street Lighting
  • Electrical Signage


Critical Power

M.C. Dean's Critical Power Group's expertise includes engineering, installation, proactive preventive maintenance and design/build services.

The Critical Power Group provides the expertise and services to ensure the integrity of mission critical systems by understanding customer needs and operations. Our menu of services is aimed at ensuring continuous uptime, preventing disruptive and costly outages, and providing effective data center infrastructure support:

  • Uninterruptible Power Supply Systems (UPS)
  • UPS and Related Power Equipment Installation
  • UPS Start-Up & Testing Services
  • UPS Engineering Specifications
  • UPS Preventive Maintenance Services
  • Power System Analysis
  • UPS Power Quality Surveys and Measurements
  • Coordination Studies
  • UPS Emergency Response and Troubleshooting
  • Professional Engineering Services
M.C. Dean Critical Power brochure


Power Systems Testing and Maintenance

M.C. Dean maintains a staff specializing in the engineering, testing and maintenance of electrical systems. Every inspection and testing is documented and quality assured by technicians who stand ready to perform any emergency repair services. M.C. Dean can dedicate full-time technicians to clients when necessary. The company offers:

  • Circuit Breaker Testing & Analysis
  • Insulating Liquid Sampling, Testing & Analysis
  • DC Testing of Transformers
  • AC Testing of Transformers
  • Gas Testing
  • Relay Testing & Calibration
  • System Ground Testing
  • Cable & Splice Testing - AC/DC Hi-Pot & Megger
  • CoGeneration System Testing
  • Testing & Maintenance of Storage Battery Systems
  • Infrared Scanning
  • Power Factor Testing & Analysis
  • Custom Maintenance Programs
M.C. Dean Building Intelligence
1765 Greensboro Station Pl.
Tysons, VA 22102
(703) 802-6231
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