Frequent grid outages highlight the need for resilient energy solutions. Traditional diesel gensets leave stranded capacity, while battery energy storage systems (BESS) offer always-on power that boosts resiliency, lowers costs, and supports sustainability. Integrated into microgrids, BESS enables seamless islanding, peak demand reduction, renewable firming, and spinning reserve, improving efficiency and cutting emissions. Lithium-ion, especially LFP, batteries dominate due to cost and energy density. With advanced controllers and switchgear, BESS microgrids provide grid services, generate revenue, and manage critical loads. For data centers, they deliver reliable, flexible, and intelligent energy strategies.

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