The Economic and Environmental Benefits of Second-Life Batteries Applied in the Power System

Second-life batteries (SLBs) have attracted increasing attention due to their high remaining capacity and great potential market. Once not handled properly, SLBs will harm the environment and lead to resource waste. However, SLBs also have advantages such as low price and free carbon emission during production. Therefore, it is highly significant to build up effective pricing mechanisms and a clear assessment of economic and environmental benefits for SLBs. To evaluate the benefits of using SLBs, this paper introduces a pricing model for SLBs and integrates them into the power system planning model. The research investigates the impact of SLBs on carbon emission reduction and cost advantages. Ultimately, the study provides compelling evidence that leveraging SLBs can effectively lower power supply costs while making substantial contributions to achieving carbon neutrality.