Technical FAQs 4

How does DoD affect energy storage?

In energy storage systems, DOD affects both economic return and system efficiency. A high DOD increases energy output per cycle but accelerates battery wear and replacement costs. A low DOD enhances longevity but reduces the energy available per cycle. Therefore, choosing the optimal DOD setting is crucial.

How can energy storage improve DoD performance?

By optimizing DOD, energy storage users can: Take the Yohoo Elec High-Voltage Series as an example. Featuring Grade-A lithium cells and a high-performance smart BMS, these batteries maintain an exceptional cycle life of up to 8,000 cycles even at 80% DOD under standard conditions.

What is depth of discharge (DOD)?

Depth of Discharge (DOD) refers to the percentage of a battery’s capacity that has been used during a discharge cycle. Simply put, it measures how much of the battery’s stored energy has been consumed. For example, if a 10kWh battery discharges 5kWh, the DOD for that cycle is 50%.

What is the average discharge efficiency of the I-ESS?

The results show that the average discharge efficiency of the I-ESS reaches 27%, while the maximum depth of discharge is 64%. When using simplified models, the error in the depth of discharge calculation varies from 7 to 23%.

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System efficiency and discharge depth of energy storage cabinet

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