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Energy :: Technical Specialties

DEA offers a full range of energy development services for traditional and renewable projects. Our team is staffed with technical and professional experts to address the needs of all project phases and deliver successful projects. DEA offers an experienced group of individuals who work closely together to deliver projects from regulatory approvals through design and permitting to construction and operation.

Pre-construction Services

Surveying and Land Acquisition

  • 3D High Definition Laser Scanning (HDS)
  • Aerial mapping/photography
  • ALTA surveys
  • Boundary/cadastral surveys
  • Control surveys
  • Encumbrance mapping
  • Geographic Information Systems (GIS) mapping
  • Global Positioning Systems (GPS)
  • Legal descriptions and plat maps
  • Mapping preparation/compliance
  • Monument perpetuation
  • Records of survey
  • Right-of-way engineering/mapping
  • Title research
  • Topographic/design surveys
  • Water crossing and hydrographic surveys

Siting and Permitting

  • Animal/bird protection studies
  • Environmental assessment
  • Environmental fatal flaw analysis
  • Environmental impact statement
  • High-quality graphics for public involvement
  • High-quality map production for permitting
  • Landscape design
  • NPDES permitting/SWPPP preparation
  • Pipeline anomaly and cathodic protection
  • Pipeline replacement
  • Public outreach
  • Visual impact studies

Pre-construction Engineering

  • Balance of Plant (BOP) engineering program management
  • Bills of material
  • Civil, structural, and electrical engineering
  • Cost estimates, quantity take-off (QTO), and bid support
  • Design visualization and modeling (3D/4D)
  • Drainage and hydrology services
  • Grading design
  • Major equipment specifications
  • Material requisitions
  • NPDES and SWPPP support and preparation
  • Oil containment protection and control
  • Roadway design
  • Site layout/laydown design
  • Spill Prevention Control and Countermeasure (SPCC)
  • Substation design
  • Traffic engineering
  • Water Quality Management Plans (WQMPs)
  • Water/wastewater engineering

Development Services


  • 3D/4D visualizations
  • Endangered Species Act (ESA) consultations
  • Environmental studies and permitting
  • Geographic Information Systems (GIS) mapping
  • Impact analyses
  • NEPA/SEPA/CEQA documentation
  • Site feasibility and due diligence analyses
  • Site selection and feasibility studies


  • Civil feasibility studies
  • Civil, structural, and electrical engineering
  • Cost estimates
  • Drainage and hydrology
  • Equipment and material specification and procurement
  • Geographic Information Systems (GIS) mapping
  • Grading design
  • Infrastructure siting and mapping
  • Preliminary design layouts and reports
  • Roadway design
  • Site layout/laydown design
  • Site selection and permitting
  • Transportation planning and traffic engineering
  • Transportation studies
  • Water Quality Management Plans (WQMPs)
  • Wind potential analysis, planning and optimal site selection
  • Zoning and entitlements


  • 3D mapping and visualization (terrain and facility)
  • Comprehensive survey and mapping services
  • GeoAutomation (3D Imaging System)
  • Land and corridor surveys
  • Mobile scanning, photogrammetry, and LiDAR

Construction Services

  • As-built drawings and inspection
  • Bid proposal solicitations
  • BOP engineering program management
  • Construction inspection
  • Construction observation
  • Construction scheduling
  • Construction surveys
  • Contract administration and accounting
  • Environmental compliance
  • Field coordination
  • GeoAutomation (3D Imaging System)
  • Quality assurance


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