Tetra Tech is a leader in the wind energy market and is ranked #1 in Wind by Engineering News-Record. We provide integrated environmental, engineering, construction management, and operational services solutions for all phases of wind energy project development.

Tetra Tech supports projects for the top wind power developers and wind industry original equipment manufacturers. During the last few years, our teams have worked on more than 700 wind projects worldwide. Our project experience extends across all 50 U.S. states and 8 Canadian provinces.

We build the best team for every project, partnering our industry experts with niche firms to enhance our team’s capabilities when necessary. Our integrated team of environmental, engineering, and construction professionals helps our clients achieve development and operational objectives and increase project return on investment.

Tetra Tech’s depth and breadth of resources allows us to quickly respond to complex, multifaceted projects, saving clients time and money. We have experience addressing project challenges including:

  • Very complex logistics and severe weather conditions
  • Numerous stakeholders
  • Very aggressive schedules
  • Unanticipated issues that require specialized services (e.g., unexploded ordnance surveys)

We tailor all of our outputs to meet our clients’ project-specific needs, including transactional due diligence efforts, specialized avian and bat monitoring methods, and conservation measures. 

Tetra Tech’s depth of resources and broad geographic coverage ensure industry-wide competence with local delivery. With strong working relationships with regulatory agencies, we can help streamline project siting and permitting. We provide early consideration of constructability, respect for in-service schedules, and an appreciation for overall project economics.

Environmental Services

  • Preliminary siting
  • Critical issues analysis and strategic planning support
  • GIS application and data management
  • Constraint mapping
  • Biological resource studies and risk assessments
  • Cultural resource and architectural history surveys
  • Tribal consultation
  • Community and Aboriginal engagement
  • Shadow flicker and visual impact assessments
  • Avian and bat risk assessments
  • Endangered species act consultation
  • Noise modelling, impact assessments, and compliance and monitoring
  • Interference assessments
  • Federal, state/provincial/territorial, and local permitting
  • Environmental impact assessments
  • Expert witness testimony
  • Public involvement and community outreach
  • Environmental site assessments

Engineering Services

  • Engineering studies
  • Conceptual and detailed design
  • Interconnect planning and analyses
  • Geotechnical, geophysical, and thermal resistivity investigations
  • Transportation studies, planning, and permitting
  • Field staking and micrositing support
  • Value engineering
  • Stormwater pollution prevention plans (SWPPP) and spill prevention, control, and countermeasure (SPCC) plans
  • Civil design for mountainous terrain and islands
  • Foundation and structural design
  • Drainage, erosion, and sediment control design
  • Environmental compliance, management, and inspection

Construction Management Services

  • Clearing and grading
  • Roadways
  • Crane pads and paths
  • Foundation installation
  • Electrical construction
  • Tower and panels
  • Interconnect/communication
  • Substation
  • Overhead transmission lines
  • Turbine erection
  • O&M building installation
  • Compliance monitoring
  • Construction oversight

Operational and Maintenance Services

  • Post-construction environmental services
  • Post-construction mortality monitoring
  • Operations and maintenance services
    • Full-service O&M
    • 24/7 remote monitoring
    • Preventive maintenance system development and implementation
    • Large correctives
    • Scheduled and unscheduled maintenance cycles
  • Compliance monitoring
  • Warranty inspection services
    • Due diligence inspections
    • End-of-warranty inspections
    • Retrofits and remediation
    • Rotor removal and installation
    • End-of-warranty punch list and corrective maintenance
  • Technical support services
    • O&M personnel training
    • QA/QC inspections
    • Project management
    • Supplemental maintenance support
    • Generator alignments


  • Tetra Tech developed the American Wind Energy Association (AWEA) and Canadian Wind Energy Association (CANWEA) Wind Energy Siting Handbooks to assist wind developers in addressing regulatory and environmental issues. 
  • In the past five years, we have provided O&M support for more than 10 gigawatts of projects, including turnkey annual and semi-annual services, retrofits, construction and special projects.
  • Tetra Tech has the financial strength and depth of resources to stand behind large, complex projects.