Battery sizing in systems for power grid frequency regulation?

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Battery Energy Storage Systems (BESS) can effectively regulate power grid frequency, but determining the appropriate battery size remains unclear. A common example suggests that 25MW of regulation may require 2MW of battery capacity, yet no standardized formula for sizing exists. The discussion highlights a need for clearer guidelines or resources on battery sizing for frequency regulation. Participants express interest in academic papers and practical examples to better understand the topic. Overall, further research and shared resources are essential for those looking to design BESS for grid frequency regulation.
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Hi! I have been on a renewable energy kick lately, and learned that big batteries can be used to help regulate the frequency of the power grid. But how are they sized!?

If I am connecting a BESS to a power grid to help regulate the frequency, I've seen regulation of say, 25MW of regulation taking 2MW of battery.

But I haven't found any sort of formula or guidelines for the battery size.

Any info much appreciated. All I have been able to find online is academic papers. Thanks!
 
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Can you post some links to the reading you've been doing about this? And this is a practice problem, right? You're not really tasked with designing a 25MW facility and asking this question on the Internet...? :wink:
 

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