Perform a techno-economic assessment of a Battery energy storage system (BESS) installation (A1) in a radial LV grid to maintain the voltage level within mandatory limits, and compare the results to traditional grid reinforcements (A0).
Work performed
Developed a simulation model in Python consisting of a model for running the battery as efficient as possible, a power flow solution model based on the backward/forward sweep algorithm, and an economic assessment.
Significant results
The battery is able to maintain the voltage level above the limit of 0.9 pu (A1 in figure) for all hours.
The cost of installing the battery is 77 % higher than the corresponding line costs, resulting in a break-even cost of the BESS of 3900 NOK/kW and 1160 NOK/ kWh for power and energy capacity, respectively.
Impact for distribution system innovation
Investigate the potential for using batteries for system support as alternative to traditional grid reinforcement.
