The Kodiak microgrid is an islanded grid, meaning there is no interconnection with any outside grid.
Kodiak’s 3 MW (2 MWh) gel lead-acid battery contributes to the stability of the system, and KEA recently added two 1 MW flywheel systems. The flywheel will take over some of the workload from the battery, which currently charges and discharges around 1,000 times each day. The pairing of multiple types of storage that operate on different time scales effectively matches system needs, especially when variable renewable penetration is high.
Kodiak, AK, United States
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