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RENEWABLE POWER
42CAPA034/10/2010
SODAR AND LIDAR REMOTE SENSING SERVICES
Sonic Detection and Ranging (SODAR) and Light Detection and Ranging (LIDAR) are portable, ground-based, remote sensing techniques to directly measure wind profiles and turbulence characteristics over the entire blade-swept area of modern wind turbines ranging in height from 30 to 160 meters. These measurements decrease uncertainty in extrapolated wind speeds from meteorological towers and therefore available wind energy estimates for every project.
Hatch, through its acquisition of GPCo, has many years of experience in remote sensing measurement programs in various climates and conditions across North America. Our custom campaigns typically range from three months to a year or more and are usually orchestrated with on-site tower measurements. Hatch optimizes the performance of each SODAR or LIDAR machine by considering site-specific terrain and climate. Regular on-site maintenance and data retrieval are conducted to ensure consistent and accurate data acquisition.
REMOTE SENSING MEASUREMENT CAMPAIGNS
• Complement conventional anemometry measurements for a more accurate understanding of the wind resource at and above turbine hub heights
• Provide continuous profiles of all three wind velocity components as well as turbulence data at 10 meter intervals from 30 to 200 meters in height
• Perform Initial site prospecting/ Feasibility measurements
SODAR AND LIDAR APPLICATIONS FOR WIND ENERGY
• Detailed wind shear and profile analysis
• More comprehensive input data for site wind flow modeling
• Turbine inflow and rotor plane energy production estimation studies
• Detailed turbine wake effect and array loss studies
• Offshore and remote site assessment
• Simple multi-site spatial or seasonal wind variability or complex terrain studies
Remote sensing can precisely measure the wind resource at and above hub height
Measured and extrapolated wind speed profiles: SODAR and Met Tower
CONTACTS
Ray KavanaghGlobal Director, Wind Power Tel: +1 403 920 [email protected]
Michel CarreauDirector, Renewable PowerTel: +1 514 864 5500 x [email protected]
Louis AugerGeneral Manager, Wind Resources AssessmentTel: +1 514 864 5500 x [email protected]
Tim DwyerManager, Wind ResourcesTel: +1 801 649 [email protected]
Ron HigsonDirector, Renewable PowerTel: +61 7 3166 [email protected]
Ground-based remote sensing equipment measures wind profiles
RENEWABLE POWER
SODAR AND LIDAR REMOTE SENSING SERVICESCONTINUED
SERVICES
Site Evaluation and SODAR Deployment
• Site obstruction analysis
• Ambient noise/echo/line-of-sight analysis
• Equipment calibration and characterization
• Signal-to-noises ratio and data reliability checks
Operational Support/Maintenance
• Daily satellite/cell link for data download and operational check
• Routine site visits: weekly to bi-monthly
• Local personnel maintenance training
Remote Sensing Instrumentation
• Experience with multiple equipment manufacturers
• Custom power supply systems: solar, wind, gas/diesel generator, or AC
• Auxiliary sensors: temperature, relative humidity, pressure, precipitation
• Special features: GPS, precipitation mitigation measures
Data Analysis and Quality Control
• Robust multi-tier data analysis process
• Rigorous data QC using in-house software tools
• Operational signal quality, data reliability, recovery rates
Custom Data Analysis/Software Development
• Ability to produce client customized data
• Internal development of software tools
On-Site Met Tower Comparison
• Used in most campaigns
• Provides on-site data validation, reference data
Standard Monthly and Annual Reporting
• Standard tower correlation data
• RS data profiles: vertical, horizontal, inflow angle, turbulence
• Essential plots, tables and QC reports
• Complete, concise and easy-to-read
Triton SODAR
SODAR at a proposed wind farm site
Daily wind speed measurements
Hourly wind speed measurement
