SERVICES

• Site Evaluation
• Evaluations
  • Hydromechanical
  • Runner Upgrades
  • Generator Uprating
  • Governors
  • Generators/Switchgear
  • Substations
  • Relay/Metering/SCADA
  • Automation
• Conceptual Designs
• Feasibility Studies
  • Economic Analysis
  • Hydraulic Studies
  • Cost Estimates
• Preliminary Designs
• Detailed Designs and Specifications

Project Examples

Duke Energy Hydroelectric System Modernization, Catawba-Wateree River

The Duke Power Hydroelectric System Modernization Program is one of the major systematic hydropower upgrade and rehabilitation efforts undertaken in the country, involving 43 generating units at 13 stations with a total installed capacity of 1,550 MW.  DTA staff performed an initial condition assessment of all of the components at each of the 13 powerhouses on the Catawba River in NC and SC.  Read More...

Weldon Hydro Station Upgrade and Frequency Conversion

The Weldon Hydro Station is an unmanned facility located on the Penobscot River in northern Maine. The station contains four turbine-generator units with a total installed capacity of approximately 20 MW. GLHA engaged the services of Devine Tarbell & Associates Inc. (DTA) to study these units and develop a program for runner replacement, generator rewind, unit upgrades, and 40 to 60 Hz frequency conversion.  Read More...