The number of small scale generation units (or
Distributed Generation (DG)) worldwide is increasing rapidly.
Norway has a large potential for hydropower which leads to
expectations that the number of small scale hydro generation
units to be connected to the MV distribution system will increase
in the years to come. However, as more DG connects, more
challenges are induced into the distribution system. In order to
ensure stable and secure system operation, several rules and
regulations are necessary. This paper focuses on the network
code proposed by the European Network of Transmission
System Operators for Electricity (ENTSO-E) in June 2012,
which, when applied in Norway, will introduce new
requirements both to the DG owners and distribution system
operators (DSOs). The paper discusses some of the changes the
new network code will likely impose on the distribution network
operators and on the existing and future DG units in the
distribution system.