Tetra Tech offers comprehensive life cycle services throughout the entire development process of a solar energy project.

Tetra Tech safely and effectively plans, engineers, and maintains solar facilities around the world. From initial site screening through full permitting, design, and commissioning, our teams navigate complex regulatory environments and technical challenges to deliver projects on time and within budget. With broad geographic presence, decades of institutional knowledge, and strong solar industry relationships, our planners, engineers, scientists, and project managers have successfully supported the development of more than 1,000 solar projects.

Tetra Tech’s capabilities extend beyond typical solar development services and include engineering design and constructability reviews, contaminated site remediation, transmission and distribution, energy storage, microgrid solutions, and projects with other colocated generation sources.

Solar site layout in blue with topographic elements in cream created by Tetra Tech renewable energy engineers

Planning and Siting

Tetra Tech offers the full suite of planning, environmental, and engineering services to early-stage solar development projects to accurately and efficiently characterize sites and minimize initial and long-term risk to development. Our planners, engineers, and scientists identify and mitigate potential concerns early to position clients’ projects for success.

Tetra Tech employee in vest and hard hat collects data on a tablet during a wetland assessment for a solar project 

Development and Permitting

Our project managers skillfully navigate the local and federal regulatory environments to successfully guide projects through the development and permitting process, while our engineers perform detailed civil, mechanical, and electrical design and other required studies in advance of construction.

  • Biological resource (wetland, wildlife, and avian) and geotechnical studies
  • Cultural resource and architectural history surveys
  • Local, state, and federal permitting
  • Glint and glare analysis and visual impact assessments
  • Hydrological and hydraulic flood studies
  • Federal requirements, such as National Environmental Policy Act, and state environmental review
  • Detailed civil, mechanical, and electrical engineering design for solar site, substation, and transmission
Workers install solar panels in a large array

Construction Management and Compliance

Tetra Tech provides construction services for solar development and associated transmission assets. Our engineers and construction compliance inspectors work seamlessly with clients and contractors to minimize compliance concerns and ensure structural and electrical integrity of the solar site buildout.

  • Construction management services
  • Stormwater pollution prevention and spill prevention, control, and countermeasures plans
  • Compliance planning and inspection
  • Revegetation and site restoration plans
  • Financing support
  • Constructability reviews
  • Field engineering services
Two engineers in hard hats with laptop discuss solar panels

Operations and Maintenance (O&M)

We understand that a key aspect of a successful project is O&M management of a site. Our planners, engineers, and scientists develop optimal monitoring plans to maintain compliance at the site and maximize generation capacity. We specialize in solar O&M mechanical services, providing tools and support to reduce the burden on O&M staff and increase clients’ return on investment.

  • O&M plans
  • Decommissioning plans
  • Performance analysis dashboarding and reporting
  • Operation engineering manual technical services
  • Repowering services
  • Plant optimization and energy loss analyses
  • Tax equity and transaction support