DNV offers comprehensive testing services and unparalleled testing expertise to the wind energy industry. We are accredited for power performance testing and turbine mechanical loads measurements per IEC and MEASNET procedures.

DNV's trained and knowledgeable staff provides testing and measurement services to a wide range of clients. We work with wind turbine manufacturers to evaluate new turbine models, with wind project owners and operators to verify expected performance, and with the research community to analyze new procedures and equipment. Our testing competence includes:

• Power performance testing
• Turbine loads measurements
• Acoustic emissions
• Power quality
• Other customized measurements activities.

DNV has performed these services on wind projects in varied geographies and climatological conditions. Our experience includes work in such diverse locations as West Texas, the Canadian Maritime Provinces, the Philippines, India, and Alaska.

DNV Renewables (USA) Inc. is accredited by the American Association of Laboratory Accreditation (A2LA) to ISO 17025 for power performance testing and turbine mechanical loads measurements as per IEC and MEASNET procedures.

DNV manages all aspects of our measurement projects, requiring minimal client involvement, unless desired. In addition to providing personnel, DNV typically specifies, procures, and installs met towers and all related hardware to conduct the measurements. Leveraging our relationships with met tower and sensor vendors can reduce costs, ensure timely performance, and procure equipment that meets the needs for high-quality measurements consistent with international standards.

Meeting client needs
We provide testing and instrumentation services for turbine suppliers, owners, and developers of wind projects. Examples include:

For turbine manufacturers

• Characterizing prototype turbine performance, acoustic emissions, and loads
• Performance assessments after the project is built and operating
• Optimizing turbine performance
• Understanding turbine response to various wind conditions.

For turbine owners and developers

• Warranted power curve and warranted AEP testing
• Determining site-specific performance of turbines
• Project-wide performance measurements
• Nacelle-anemometer-based power curves using
• SCADA data.

Other related services

• Power performance site selection
• Regional search
• Detailed site suitability studies
• Micrositing
• SCADA and forecasting towers
• Siting
• Turn-key supply and installation
• Asset management and repair
• Complete project and construction management services
• Development of enterprise-wide SCADA met tower program
• Custom met tower solutions for utility interconnects (ERCOT)
• Instrumentation, calibration, specification, and installation
• Sodar and lidar measurements
• Consultation on warranty terms.