DEWI Group now provides measurement services using LiDAR technology. Wind measurement with LiDAR can avoid long administrative approval procedures that are normally required for a mast erection and can lower overall project risks by providing additional valuable information, e.g. for tall hub heights, for large size projects requiring several measurement locations, or for locations where no measurement mast can be erected.
LiDAR is an optical remote sensing technique that measures both vertical and horizontal wind speeds and direction based on laser signals backscattered by particles in the atmosphere. The DEWI Group implements this state-of-the-art technology to provide wind farm developers, operators, owners and investors, as well as manufacturers, with the following services:
During the development of a wind farm, the measurement strategy with a LiDAR device can be defined and performed by DEWI experts, including:
This type of measurement strategy is valuable for:
These services are carried out either with your LiDAR system or with one of the LiDAR systems that DEWI offers for rent.
The DEWI Group offers comprehensive Energy Yield Assessment services at the pre-construction stage, including:
The DEWI Group performs power curve measurements with ground-based LiDAR in accordance with the upcoming IEC 61400-12-1 Ed.2. The DEWI experts are also able to carry out power curve measurements with nacelle-mounted LiDAR.
In general, the DEWI Group offers the entire range of wind turbine power curve verification services to ensure the equipment’s performance meets IEC 61400-12-1 and MEASNET procedures:
Prior to measuring with a remote sensing device on a site where no measurement mast is available, the current discussion in IEC expert teams has led to the requirement that the LiDAR is verified against a high-quality measurement mast of suitable height equipped with calibrated cup anemometers before being installed on-site.
DEWI Group offers this service, as well, providing traceability of the wind speed and wind direction signal.
In addition to LiDAR services, the DEWI Group’s range of professional on-/offshore services include safety testing, performance testing as well as certification for wind turbines and their components based on international and national standards and regulations (IEC 61400 series, GL guidelines, DIBt, BSH), as well as site evaluation, design evaluation, energy yield assessment, technical due diligence, turbine assessment/inspection and research.
We are committed to expanding our global service portfolio to continue providing flexible and comprehensive expertise precisely targeted to the needs of all wind industry stakeholders.