Project

Exploiting the potential of spent electric vehicle batteries, Electric Agder - ELAG

Goal: ELAG brings together important regional actors in the battery sector to try and develop new technologies and concepts that will aid in the electrification of society and contribute to increase circularity in the Norwegian battery value chain. The overall research aim is to determine how used electric vehicle batteries can be automatically discharged and characterised in order to be integrated into a circular battery value chain that also uses battery energy storage to meet the needs of a low-carbon and electrified society.

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Project log

Bernhard Fäßler
added a research item
Circular business models for batteries have been revealed in earlier research to achieve economic viability while reducing total resource consumption of raw materials. The objective of this study is to measure the economic performance of the preferred business model by creating different scenarios comparing second life (spent) and new battery investment for seven different European regions and four energy management strategies. Findings reveal levels of economic ability for a total of 34 scenarios simulated, including direct savings per kWh, a total change in energy costs per year, battery charge/discharge cycles, and comparative breakeven analyses. Regional effects are also measured based on day-ahead electricity prices and solar irradiation. The minimum payback time is 7 years before battery system investment costs are covered. The most viable energy management strategies also had the highest number of charge/discharge cycles, which decreases battery lifetime. Investment in a second life battery compared to a new battery reduced the payback time by 0.5 to 2 years due to lower investment costs. However, the estimated lifetime range (3 to 10 years) is lower compared to a new battery (5 to 15 years), which questions the circular business model viability for the scenarios studied. Energy management strategies should be combined and customized to increase economic benefits.
Bernhard Fäßler
added a research item
Bernhard Fäßler
added a project goal
ELAG brings together important regional actors in the battery sector to try and develop new technologies and concepts that will aid in the electrification of society and contribute to increase circularity in the Norwegian battery value chain. The overall research aim is to determine how used electric vehicle batteries can be automatically discharged and characterised in order to be integrated into a circular battery value chain that also uses battery energy storage to meet the needs of a low-carbon and electrified society.