The benefit of batteries in a flexible distribution grid : results from the FlexNett project

This report is developed within the FlexNett project (2015-2018) and summaries the results from the demonstration sites focusing on batteries, located both at BKK Nett, NTE Nett and the municipality of Hvaler. The FlexNett project aimed to contribute to increased flexibility in the future smart distribution grid by demonstration and verification of technical and market based solutions for flexibility, on different grid levels and for different stakeholders. This report focuses on stationary batteries. A stationary storage is typically a lithium battery (Li-ion) and often consists of modules that can be assembled into larger units depending on the specification. A battery can be installed anywhere in the mains; at the customer (behind the meter), in a neighbourhood, in a network station / transformer station or at a production unit.