As turbines continue to grow taller, Lidar has emerged as a powerfull tool for collecting precise, bankable data at a range of heights. Ideal for wind resource assessment, wind turbine optimization, and wind plant monitoring, the Spidar Vertical profiler can be deployed alone or alongside a Met Mast, and can used in a variety of climates and terrains.

Pair Lidar with met towers at your prospective wind plant site to obtain economical, hub-height wind speed measurements.


The Spidar Vertical Profiler is a DNV GL Stage 2 remote sensing wind measurement device that uses Pulsed Direct Detect Lidar technology to provide bankable wind measurement data at 10 vertical heights.

This low-cost remote sensor is ideal for wind resource assessment, wind farm operations, forecasting, research, and meteorological applications. Spidar has the smallest cone angle of any remote sensor in the wind industry, so it can be sited closer to potential obstacles such as buildings or trees. It is also compact and highly portable. This allows Spidar to measure in locations where meteorological towers are not viable due to terrain complexity or permitting constraints.

Spidar is a complete remote sensing solution backed by NRG’s global partner network, technical support, remote power supplies and integrated services for seamless installation and operation. To date, over 150 Spidar Vertical Profilers have been delivered to dozens of wind energy and meteorology customers around the world.


Each Spidar is individually validated against a reference Spidar to confirm it performs to specification. The reference Spidar is routinely calibrated by a third party in compliance with IEC 61400-12-1 (Ed. 2, Annex L) using MEASNET-calibrated class one anemometers.

Spidar Factory Verification Example

Spidar has been independently verified by several leading wind energy consultants. This includes eight separate tests by DNV GL, who consider it a Stage 2 remote sensing device, capable of adding value to wind farm developments with project finance requirements. If you are interested in reviewing their Spidar position statement, please click on the following link:

Spidar DNV GL Report


  • Complete remote sensing solution is backed by NRG’s global partner network, technical support, and integrated services
  • Turnkey installations, including remote power supplies
  • Verified DNV GL Stage 2
  • Highly mobile
  • Flexible configurations with accessories to meet project-specific needs
  • Favorable pricepoint when compared to Doppler Lidar


  Cellular (#14076)
Instrument type Vertical Profiling Direct Detect Lidar (DDL)
  • Wind Prospecting
  • Vertical Uncertainty Reduction (Wind Shear Validation)
  • Horizontal Uncertainty Reduction
  • Ramp Event Forecasting
  • Freestream Operational Reference Measurements
System Verification
Classification DNV GL Stage 2 Lidar up to 100m, capable of adding value to wind farm developments with project finance requirements.
  • All units factory verified against IEC calibrated reference Lidar.
  • IEC calibration available upon request.
Verified Wind Measurement Performance
Applicable Wind Speed Range Average results up to 100m range gate from 10 Lidar performance verification tests performed by independent third parties.
WS Forced Fit Slope 1.004
WS Correlation R² .984
WS Deviation (±m/s) 0.02 @ 10 m/s
WS Deviation (%) 0.23%
System Geometry
Full Cone Angle 10°
Measurement Height Range 20-200m
Number of Range Gates 10
Range Gate Heights Configurable
Hardware Specifications
Warranty 2 years
Maximum Site Slope 20°
Dimensions Typical installed footprint: 1,092mm x 1,259mm x 1,425mm (43.0" x 49.6" x 56.1")
Weight Shipping Crate:
  • 136kg (300lbs)
  • 1,118mm x 889mm x 1,041mm (44" x 35" x 41")
Electrical Specifications
Power Consumption
  • > 0°C: 35W
  • < 0°C: 50 to 100W
Supply Voltage 23-32 VDC
Data Specifications
Data Sampling Rate 14 Hz
Averaging Interval Configurable
Storage File Format ASCII
Storage Capacity ~3 years
Data Output Options
  • .csv files delivered via email at configurable interval
  • Continuous delivery to SCADA networks via Modbus
Environmental Specifications
Operating Temp Range -40° to 50°C
Operating RH Range 0 to 100%
Ingress Protection IP65
Eye Safety Classification IEC Laser Class 1M