Solar PV Services – Owner's Engineering

DNV KEMA works with project owners to ensure a high level of engineering excellence starting with site feasibility studies and progressing through all project phases culminating in final acceptance testing and performance verification. Our team brings a multi-disciplinary approach to each project, providing a borad and deep perspective on design, contract review, pro forma review, construction monitoring and final testing.

For the list of service tasks below, detailed reports are generated specific to the needs of the client and can include various combinations of the following tasks.

Site evaluation

Evaluate site for suitability of proposed installation; potential impact of the following on system construction and operation:

  • Solar resource
  • Topography/shading
  • Site/soil condition
  • Security
  • Environmental factors

Design review

Review design for code compliance and conformance to customary solar engineering practice. Evaluate key components:

  • Modules
  • Inverters
  • Tracker design
  • Balance of system
  • System integration

Performance estimate

Estimate system performance:

  • Site-specific solar resource
  • System power ratings (dc/ac, STC/PTC, etc.)
  • First-year energy production
  • Life-time energy production, including degradation

Permit status review

Identify key permit and schedule milestones. Evaluate on-going status of permits including:

  • Building permits, easements, grading, dust, etc.
  • Incentive reservations and proof of progress
  • Utility interconnection/net metering/FERC/ISO
  • Environmental permits

Construction support

Review and investigate construction activity, identify potential hurdles and recommend solutions:

  • On-site construction monitoring
  • Supply and service contract terms and conditions
  • Key subcontractors
  • Installation schedule
  • Performance guarantee review

O&M review

Review and investigate operations and maintenance (O&M), identify potential hurdles and recommend solutions:

  • O&M cost estimate
  • O&M contract terms and conditions
  • O&M manual
  • Key subcontractors

Overall risk assessment

Summarize project risk in terms of potential impact on:

  • Construction schedule
  • Evaluate workmanship
  • Verify permit compliance
  • Perform or witness sub-system testing
  • Develop punch list and check status as necessary

System test

Witness or review performance data set to:

  • Verify minimum period of continued operation
  • Assess actual vs. predicted output
  • Other contractual measure of acceptable performance

Performance evaluation

Complete or spot evaluation of array, tracker and inverter through the use of:

  • Spot voltage and current measurements
  • IV curves
  • As-installed array and system ratings
  • Independent performance monitoring

Final completion

Verify the completion accuracy of all items to be declared listed on the Final Completion Notice, such as:

  • System ready for full, unattended commercial operation
  • System passed inspections with AHJ
  • Utility interconnection installation evaluation complete
  • System tests passed successfully

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