Grid bottlenecks can be reduced, overloads avoided and the existing infrastructure optimally utilized - a decisive factor in reducing grid expansion costs and ensuring grid stability.In addition to a real-time calculation, it can also be used to calculate a forecast, e.g. to show the electricity load capacity for the following day. Together with a forecast of the expected yields from wind power and photovoltaics, this provides valuable information that contributes to the stable operation of the electricity grids.
Factual basis for the DLR sector:
Curtailments refer to the reduced feed-in of electricity from renewable energy sources (e.g. wind and solar energy) when the grid cannot absorb the excess energy. This happens when the electricity grid does not have enough capacity due to overload or grid instability..
The measuring stations for weather-dependent overhead line operation (WAFB) are installed at strategic points on overhead lines - so-called hotspots. These locations are characterized by high meteorological relevance. Typically, sensors are attached to electricity pylons at a height of 15 to 30 meters, as the wind and temperature conditions that determine the heat dissipation of the conductor cables can be recorded undisturbed here. In some projects, DLR systems also offer the possibility of using AI-supported algorithms that can analyze the measurement data and contribute to improving grid planning. Integration into existing SCADA systems is also possible to ensure seamless integration and automated control.
A major advantage of DLR is the reduction of grid bottlenecks at peak load times, when the actual line capacity exceeds the nominal capacity of the line under certain environmental conditions and is optimally utilized. The economic advantage is obvious: higher grid capacity with unchanged grid infrastructure, i.e. no need to build new lines. Estimates suggest savings in the billions per year. As the NOVA principle only allows the construction of new lines after existing capacities have been utilized, technologies such as DLR make an important contribution to complying with regulatory requirements for efficient grid use..
An alternative to DLR is the use of new cables that are designed for higher loads and offer a better basic capacity. However, such an upgrade requires considerable investment. DLR, on the other hand, optimizes the existing infrastructure by adapting the load on the cables to the weather conditions in real time. This allows the varying cable capacity to be optimally utilized without additional costs for cable replacement.
Suitable sensors for Dynamic Line Rating (DLR).
Ultrasonic Anemometer 2D Compact

Area of application:
Detection of wind speed and direction with maximum precision.
Detection of wind speed and direction with maximum precision.
- Ultra-compact design for easy mast mounting.
- Robust design for extreme environments
- Precise measurement even with minimal air currents
- Data transmission via Modbus interface
Details zu US 2D Compact
CLIMA Sensor US

Area of application:
Combination sensor for several parameters such as wind, temperature and humidity.
Combination sensor for several parameters such as wind, temperature and humidity.
- Weatherproof design with minimal maintenance requirements
- Precise recording of ambient conditions in real time
- Versatile integration into DLR systems thanks to standardized protocols
- Perfect addition for hotspot measuring stations
Details CLIMA SENSOR US