Practical application of active distribution grid planning to pilot area with new energy solutions
Challenge and objective
Molobyen is a near-zero-emission-neighbourhood development area in Bodø considered in a pilot project together with the local grid company Arva.
Grid-connection planning must consider the interplay with solar PV and district heating (DH).
In a master thesis, CINELDI's active distribution grid planning framework is adapted to incorporate load and generation modelling from FME ZEN, a model for optimal operation of neighbourhood batteries, time series power flow analysis with NETBAS, and optimal grid planning with the DYNKO tool.
Because of the DH supply, PV generation becomes the dimensioning factor for the distribution grid.
Calculations of the cost of losses had to be adjusted to account for the effect of local PV generation.
Neighbourhood batteries were not cost-effective, depending on transformer overloading restrictions.
Impact for distribution system innovation
Grid planning must consider the design of the internal energy system in neighbourhoods and the coordination with other energy carriers/sources.