Solar PV Services – Independent Engineering

DNV KEMA provides financial institutions a full-service approach to due diligence. We work closely with project developers and EPC contractors to ensure that every phase of a project is completed safely and with performance in mind. Starting with the initial solar resource assessment and energy estimate, DNV KEMA’s epxerience brings valuable insight into areas such as contract review, operations and maintenance, design review and performance analysis.

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.

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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