Since 2005, 50Hertz, the transmission system operator (TSO) from the north-east of Germany, has been engaged in the planning of the new, higher capacity Uckermark Line (“Uckermarkleitung”). The new 380kv overhead line is to replace the existing 220kv line that went into operation in 1958, whereby the TSCNET shareholder takes account of the growing relevance of renewable energies in its control area. The new Uckermark Line will run from the Bertikow substation near Prenzlau to the Neuenhagen substation in the north-east of Berlin and connect further substations, one of which is an important interconnector to Poland. It will be capable of transmitting up to five times more electricity, so that in future more wind and solar power from the German states of Brandenburg and Mecklenburg-Western Pomerania can be transported to the southern consumption centres.
The start of construction of the 115-kilometre-long new line was delayed for reasons of bird protection: A German nature conservation association had filed a complaint against the planning approval decision granted in 2014. This necessitated a supplementary planning procedure, expert reports on bird protection, consultations, and modifications. The competent authority now granted the building permit, which maintains 50Hertz’ originally planned routing. The future Uckermark Line will no more affect the biosphere reserve Schorfheide-Chorin and thus pays considerable attention to nature conservation. Special permits have been issued for other bird sanctuaries that cannot be bypassed due to their size, including compensation measures to preserve biodiversity. The dismantling of the old power line plays an important role here, but also bird protection markers or special pylons with reduced height.
50Hertz has been cooperating for several years with various nature conservation organisations and ornithological observatories to better assess the possible threats to birds. A nationwide cooperative portal of TSOs and distribution system operators (DSOs) in conjunction with the Renewables Grid Initiative (RGI) for data on detected accident birds is particularly noteworthy in this context. To increase acceptance of a project as essential for the energy transition and climate protection as the Uckermark Line, it is important to reconcile the substantial ecological added value of the capacity expansion with other nature conservation interests. Hence, the commitment of 50Hertz both to the ecologically necessary grid extension and to other environmental interests is highly to be appreciated.