‘Dynamic Line Rating’ (DLR) technology is being trialled for first time in the UK following successful deployment on National Grid’s electricity networks in the US.
DLR uses sensors and a data analytics platform to highlight available spare capacity on overhead power lines when available.
Based on the US trial, National Grid said the system has the potential to unlock 0.6GW of additional capacity, enough to power more than 500,000 homes and save £1.4m in network operating costs annually.
The sensors continuously monitor the transmission lines and apply advanced analytics to calculate the Dynamic Line Rating which is determined by a power line’s physical and electrical properties, such as size, resistance and maximum safe operating temperature, as well as the local weather conditions.
Electricity transmission lines have historically been operated using a ‘static’ line rating calculated using conservative and static values for assumed weather conditions...
