Follower island: Norderney


Energy profile:

100% of the gas consumption is provided via pipes from the mainland. Currently, a mix of 20% biogas (RES) and 80 % natural gas is used. 20% of the power consumption is provided by local PV and cogeneration systems which are running with biogas.

Thus, 20% of the final consumption is provided by renewable energy sources (8 GWh per year).

The rest of the power consumption is provided via a cable from the mainland (32 GWh per year). The cogeneration systems also provide thermal energy for local heating networks (7 independent networks).

Grid profile:

there exists a low voltage 400V and medium voltage 20 kV, 147 km cable network, 49 transformers, 2.500 access nodes, Gas (low pressure, medium pressure), 3,4 km network, 2.000 access nodes, 7 independent local heating networks. 76 km of pipe network and 2 water mining sites.

Norderney has over 100 sites with photovoltaic systems providing 1 GWh of power to the local network. In addition, renewable power by cogeneration systems running with biogas, so that nearly 20% of the power consumption is produced on the island itself.

Regarding power and gas supply Norderney has only one connection point to the mainland.

Goals and objectives:

Potential innovations to be implemented and main challenges:

The aim is to respect and integrate measures to move towards the goals described above and the following technology implementation strategies:

  • Making use of synergies between different energy networks to reduce costs and increase autonomy.

  • Integration of battery systems and handling of energy flexibilities to adapt to higher usage of renewable energy sources and increasing usage of electrical cars. Norderney’s bill for procuring energy on the wholesale market needs to be reduced.

Therefore, Norderney is highly interested in the demonstration of storage from Unije and Madeira, as well as on the results from the biogas intervention in Bornholm. It is important to highlight the enormous interest of the island in preserving the environment of the coast line, which is very protected.

Main use cases for replication: