Improving Battery Operating Conditions To ensure a certain battery lifetime, it is crucial to consider the operating conditions. Overtime usage of batteries results in a loss of battery efficiency, reduced capacity, and increased internal resistance, generally referred to as battery aging. The aging depends on multiple mechanisms and can happen even if batteries are not operated. During operation, factors like temperature, state of charge, energy throughput, depth of discharge, and C-rate affect the aging and with it the battery lifetime. To tackle this, battery manufacturers offer a performance warranty. It is a contract between your business and the battery system supplier to guarantee a particular lifetime and energy capacity during the performance warranty period. The contract is usually standardized for smaller industrial systems and negotiated on a project basis for larger systems. You are contractually obliged to operate the battery within the operational constraints of the performance warranty; otherwise, you can lose the warranty. The operational constraints can be defined daily or yearly or set as upper and lower thresholds that can't be exceeded at any moment of your operation.

Making The Most Out Of Your Performance Warranty Understanding how to fully utilize the potential of a performance warranty and its impact on your business is crucial. With it, you can rely on a secure financial model that meets energy requirements outlined in, e.g., a tender or to fulfill service contract obligations. Moreover, performance warranties enable you to compare battery suppliers based on their offered conditions and pricing. While one system may have a lower CAPEX, it might provide less energy throughput or have a shorter guaranteed lifetime. During operations of battery energy storage systems, there are many ways to handle the operating conditions to meet the performance warranty constraints. This includes tracking and monitoring the operational parameters, logging and storing operational data, , and forecasting the development of relevant parameters to avoid potential violations or loss of the warranty. By tracking and forecasting the operational conditions of your battery system, you can securely operate near the thresholds of your performance warranty without violation and, therefore, maximize your battery system's performance.

How Cellect Helps In This Scenario Within the Cellect Platform, we have built a section solely focused on operational parameters and performance warranty. Cellect provides different performance warranty trackers according to the standard terms of different manufacturers, which can be customized on a project basis. You can get an overview of all the information related to your performance warranty by viewing parameters like temperature, state of charge, energy throughput, depth of discharge, and C-rate. All the data is securely stored in the cloud, allowing you to generate a report for any specific time period whenever you need it, especially when making a claim. Cellect's analytical capabilities can help enhance battery operations and optimize performance warranty utilization. It not only ensures operational compliance but also empowers you to make well-informed decisions that align effectively with your business goals.