Electric Utilities

  • Power Transmission Projects

    To address conditions posed by environmental changes, infrastructure service life and suitability, shifting power production, and consumer use trends, Vermont Electric Coop regularly improves its substation yards and transmission infrastructure. Under an on-call arrangement, D&K provided survey, civil, and structural engineering to more than ten locations throughout VEC’s service area.  

  • Hydro & Substation Projects for GMP

    Green Mountain Power (GMP) is a private electrical utility provider that maintains much of Vermont’s electrical distribution and hydroelectric power-generating infrastructure, solar farms, and natural gas cogeneration facilities. As GMP has grown through expansions and small utility provider acquisitions over the past 20 years, D&K has supported approximately 200 projects, and we continue to provide…

  • Garvins Falls Inflatable Bladder Study

    Patriot Hydro sought the operational and maintenance benefits of converting water-level controls from timber flashboards to a remotely operated inflatable bladder system at a 12.4-MW hydroelectric project. An unusual amount of woody debris had accumulated in the facility’s intake channel. D&K evaluated the dam and hydrologic and hydraulic conditions to determine the feasibility of installing…

  • Hooksett Hydro Station Improvements

    To understand existing conditions and evaluate opportunities to upgrade the facility, D&K supported Patriot Hydro by providing an evaluation and designing upgrades of the 1.6MW Hooksett Hydroelectric Project. The team assessed existing conditions, including civil-structural, equipment, hydrologic and hydraulic, and natural resources. D&K also completed an electrical generation study that identified ways to optimize the…

  • Electric Utilities

    DuBois & King provides assessment, planning, and design for hydroelectric, solar, and gas cogeneration facilities. Structural engineers focus on evaluation of assets and support systems such as penstocks, powerhouses, cranes, bridges, access, dams, fall protection, intakes, stacks, lattice structures, and foundations. Mechanical engineers provide review, design, and commissioning for systems, such as heating, cooling, plumbing,…

  • Stevens Mill Penstock Inspection

    To comply with Federal Energy Regulatory Commission (FERC) regulations and gain a better understanding of the condition of this asset, Eagle Creek Hydro engaged D&K to inspect this concrete box penstock located on the Winnipesaukee River. Where feasible, D&K’s structural and hydroelectric engineering staff performed a visual observation, rebound hammer measurements, and soundings of the…