About Us

Sentry Electrical Group started in 2006 with the vision to provide the renewable energy sector with comprehensive solutions to interconnect wind and solar projects to the grid.

Today, Sentry Electrical Group leads the industry in tower wiring and also offers tower repower and repair, MV and fiber underground systems, transmission line construction, substation construction, materials handling, operations & maintenance, and emergency repairs. Sentry Electrical Group is a leading electrical contractor for renewable energy, utility and industrial construction services. We deliver complete, turnkey electric power construction services to major utility companies, electric cooperatives, municipalities, engineering firms, renewable energy, prime contractors, owners and developers across the United States and in Canada.

a leading electrical contractor

As a top-10 EPC contractor ranked by Energy Acuity, we have constructed over 550 miles of transmission lines from 69 kV to 345 kV, built substations to 500 MVA, installed over 200 miles of collection systems, wired more than 16,500 wind turbines, and served our customers through hundreds of projects over the past 15 years.

Our approach is defined by total integration. Our safety, management, design, manufacture, and construction teams all work together to maximize value to the customer at every stage of the project.

We have individual crews dedicated specifically to each division: transmission, substation, tower wiring, fiber optic installation, Operations & Maintenance, or industrial electrical construction. These crews are standing by to help you complete your electrical construction project.

We are members of Institute of Electrical and Electronics Engineers (IEEE) and AWEA (American Wind Energy Association (AWEA).

We look forward to the opportunity to serve as your partner on your next energy construction project.


Transmission Lines Up to 345 kV

Substations to 500 MVA Including Reactive Power and Storage Requirements

Solar Photovoltaic (PV) Array Electrical Installation

Turnkey Construction Solutions

Wind Turbine Wiring, Repower and Repairs

Wind and Solar Collection Systems

Industrial Electrification BOP Services

Fiber Optic Cable Installation and Termination/Splicing

Operations & Maintenance Services

MV and Fiber Underground Systems Including Terminations, Splicing and Testing

Battery Storage Systems

Materials Handling

Storm Emergency Response