Sodar and Lidar Remote Sensing Services

1. SODAR AND LIDAR REMOTE SENSING SERVICES
RENEWABLE POWER
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
Ground-based remote sensing equipment maintenance and data retrieval are conducted to ensure consistent and
measures wind profiles
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
Measured and extrapolated wind speed
profiles: SODAR and Met Tower • More comprehensive input data for site wind flow modeling
• Turbine inflow and rotor plane energy production estimation studies
CONTACTS • Detailed turbine wake effect and array loss studies
Ray Kavanagh • Offshore and remote site assessment
Global Director, Wind Power • Simple multi-site spatial or seasonal wind variability or complex terrain
Tel: +1 403 920 3359
rkavanagh@hatch.ca studies
Michel Carreau
Director, Renewable Power
Tel: +1 514 864 5500 x 6108
mcarreau@hatch.ca
Louis Auger
General Manager,
Wind Resources Assessment
Tel: +1 514 864 5500 x 6501
lauger@hatch.ca
Tim Dwyer
Manager, Wind Resources
Tel: +1 801 649 3672
tdwyer@hatchusa.com
Ron Higson Remote sensing can precisely measure the wind resource at and above hub height
Director, Renewable Power
Tel: +61 7 3166 7029
rhigson@hatch.com.au 42CAPA034/10/2010

2. SODAR AND LIDAR REMOTE SENSING SERVICES
CONTINUED
RENEWABLE POWER
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
SODAR at a proposed wind farm site
• 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
Triton SODAR • 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
Daily wind speed measurements
• 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
Hourly wind speed measurement