Comprehensive technical and economic evaluations of using second-life
In this study, a techno-economic evaluation method is employed to determine the price of a used battery in the process of reevaluation after its initial use has been concluded.
The term second life batteries (SLB) refers to electrical vehicle retired batteries that are repurposed and used in second-life applications. Various techniques are implied for screening, repurposing, and accurate state of health estimation to enhance their techno-economic benefits.
Introduction of government policies such as low cost of second life battery in comparison to new battery, attractive net metering rates for second life batteries' users and controlled inflation in second life battery prices are suggested to affect the market scenarios.
The second-life batteries have variable battery SOH and variable PV generation penetrations. There are supporting results about economic revenue from battery operation, hence encouraging consumers to adopt second-life batteries as a viable option for energy storage.
These economic studies have mostly confirmed the cost benefits of second-life batteries over new batteries, including decrease in LCOE, increased annual revenue, and reduced operating and payback years. However, these results cannot be generalized.
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