Distribution Grid Planning for Energy Perspectives 2050
Calculating the total (or annualized) grid investment cost at each network layer (NE4-7) for a number of scenarios of proliferation of distributed energy resources (i.e., solar PV, HP, EVs) for each target year (i.e., 2030, 2035, 2040) with and without flexibilities in the network by using time-series-based grid infrastructure planning.
The utilities are interested in the impacts of national targets for proliferation of solar PVs, electrification of heating and e-mobility on the grid investment decisions in MV and LV grids (NE4-7) in 2030, 2035 and 2040,
- considering the traditional grid expansion methods such as strengthening the cabling, converting the overhead lines to cables, strengthening the transformers, and
- employing on-load tap changers in MV-LV (NE6), ensuring reactive support from solar PVs in LV (NE7) and facilitating flexibilities such as curtailing PV, smart EV charging, limiting the charging capacities, shifting HP operation and limiting HP peak power.
- Reflecting the EV, PV and HP proliferation scenarios to each building (EGID) and network node (house connection point - Hausanschlusskasten - HAK), based on the federal datasets (e.g., Buildings and Dwellings Statistics by Federal Office of Statistics)
- Creating the timeseries of EVs, PV and HP with and without flexibilities in 15-minute resolution for 9 representative days (Winter/Summer/Spring Weekday/Saturday/Sunday) at building- and HAK-level.
- Importing the grid data from commercial software (e.g., NEPLAN, CYME)
- Performing grid planning based on AC power flow analysis for each scenario and flexibility combination for 9 days in 15-minute time resolution for each target year.
- Calculating the annualized investment costs
