From Sep 14
To Nov 26


Protecting LV and MV distribution lines from bird collisions and nest formation.


Protecting LV and MV distribution lines from bird collisions and nest formation.

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  • Protecting LV and MV distribution lines from bird collisions and nest formation.

    Some types of birds, mostly storks, choose the high parts of MV and LV poles to build their nests during nesting season (January to April). 

    Storks have been identified as responsible for shooting the lines, either because they touch the lines with the wings or because wood sticks or other materials fall from the nests that they build in the poles.

    Storks are protected species so, removing the nests is not an option to preventing the collisions with the lines and consequent downtime and decreased service. 

    Thus, the protection of the lines must be done in one of two ways:

    1. By protection measures on the poles where nests already exist, and

    2. preventive measures to prevent the construction of new nests.


    This is a Reduction-to-Practice Challenge that requires written documentation, experimental proof-of-concept data, and if requested by the Seeker, prototype delivery for a pilot demonstration to be performed by the Seeker for the purposes of evaluating the effectiveness of the solution.



    In the past, Enel has tried several strategies to address this problem. The attempted approaches included:

    - Installation of silhouettes of eagles or ultrasounds to stop the birds from building the nests on the pole.

    - Lines with very low (not harmful) current to prevent birds from approaching the poles or lines.

    - Installation of bollards in the poles with different shapes and locations. 

    - Devices, called “umbrellas” by virtue of their shape, that not only provide a physical barrier, they can rotate to ensure the birds stay away. This system was used combined with a platform to allow storks to build their nests in a safe area. Different umbrellas with different sizes and different locations on the poles have been attempted. 


    All of the above have proven to be unsuccessful as birds still find ways to avoid them and build the nests on the poles.


    The challenge to Solvers is to propose a method/device that can protect the lines (and the birds) from collisions and prevent new nests to be built.

  • Awards
  • Date & Time
    Sep 14 2018 at 00:00 - Nov 26 2018 at 23:45 Europe/Zurich
  • Location & full address
  • Challenge Admins
    Tessa Schwartzmann
  • Terms and Conditions
    Legal terms & conditions