Solar, wind, and storage renewable energy


Mesa believes in a cleaner and more sustainable energy landscape and is actively supporting these efforts. The US and the world are continuing to convert to renewable energy in the need for better ways to produce and store energy. With a steadfast commitment to engineering excellence, we offer a comprehensive suite of renewable energy solutions for utility scale projects. Ranging from 20 MW to over 1000 MW, Mesa can support your project from early-stage concept, through construction, and during commissioning & testing. Our approach is rooted in collaboration, technical excellence, and a deep understanding of the unique needs of each project. We take pride in offering end-to-end services that encompass first-in-class design and engineering expertise while accommodating cost-effective construction methods.  From nationwide energy producers to investor-owned utilities and private renewable energy developers, each client served becomes a Mesa Partner for life.

Mesa’s renewables team experiences are focused on the following areas:

  • PV Solar
  • Wind
  • Battery Energy Storage Systems (BESS)
  • Hybrid Technologies
  • Hydro

Whether the project is a small BESS add-on to an existing PV Solar site or a brand new 1000 MW wind facility that requires multiple substations and transmission lines, each project is custom designed for the site-specific conditions to establish the most cost-effective solution. Our end-to-end service offerings cover all the required stages of the project lifecycle.

Development/early Stage

Site Selection
  • T-line Route Selection
  •  ROW Review
  • Collection Circuit Route Options
  •  Site Qualification

System Impact Study

Interconnect requirements review and design

Permitting Assistance
  • Army Corp of Engineers (ACOE)
  • U.S. Fish and Wildlife Services (USFWS)
  • National Environmental Policy Act (NEPA)
  • Department of National Resources (DNR)
  • Endangered Species Consultation and Migratory Act
  • National Pollutant Discharge Elimination System (NPDES)
  • EPA Storm Water Pollution Prevention (SWPP)
  • EPA Spill Prevention, Control, and Countermeasure (SPCC)
  • Department of Transportation (DOT)
  • Special use permit
  • Zoning permitting
  • Building permitting
  • Railroad Crossing Permits
  • Pipeline Crossing Permits
Environmental Impact Studies
  • Wetland Delineation
  • Invasive Species Studies
  • Clean Water Act Section 404 permits
  • Section 401 Water Quality Certification

Historical and Archaeological Studies

FAA Requirements

Facility Study

Hydrology Analysis

Desktop Topographical, and Geotechnical Surveying

Equipment Specifications

Cost Estimating

Develop RFP packages for EPC Bids

Detailed Engineering & Design

Technical Coordination with the Regional ISO and/or Transmission Owners

Review and Approval of Drawing Submittals for Major Equipment

Detailed Topographical, and Geotechnical Surveying

Complete Civil, Structural, Physical, and Electrical Design for:
  • Substations and Switchyards (including modifications)
  • Transmission Lines
  • Collection System Designs
  • BESS and Solar Inverter Integration and Design
  • PV Solar Foundation Design
  • SCADA Programming
  • Protective Relay Settings

Detailed Material Lists for Procurement

Fire Protection Evaluation and Design

Pre-Construction Services

Bid evaluations of Construction Contractors

Witness Factory Acceptance Testing for Power Transformers and Switchgear

Factory Inspections for Detailed Steel Fabrication

Transmission Line Staking

Witness Testing for Relay Panels

Pre-shipment Inspections for Control Enclosures

Construction Period Services

Engineering Support, RFI Responses, Approval of Material Substitutions

Full-time Construction Inspections

Commissioning and Testing:
  • Substation High Voltage and Medium Voltage Equipment
  • Protective Relaying
  • SCADA Systems

Periodic Engineering Inspections on-site

Punch-list Development

Project close-out

As-built Processing/Record Drawings

Facility Rating Reports/FAC-008 Development

Additional Services

Independent Engineering Review

Temporary Resource Augmentation
  • Project Management
  • QA/QC and Inspection Services
  • Process Development
  • Engineering and Drafting

If you would like more information about renewables at Mesa Associates, Inc., you can contact Per S. Fjeld, P.E., Director of Engineering, and Eric Davis, Program Manager of Renewable Energy by clicking here.