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Most of Hawaii's electric battery systems are paired with wind or solar power plants
Nearly all of Hawaii's utility-scale battery storage capacity is installed with onshore wind turbines or solar photovoltaic (PV) systems, allowing excess electricity from those generators to be stored and used later. As of January 2020, about 30% of Hawaii's total generating capacity is solar or wind. The non-dispatchable nature of these technologies creates operational challenges for system operators. Pairing batteries with wind and solar systems has proven effective in mitigating the operational challenges. Hawaii plans to generate 100% of its electricity from renewable energy by 2045, and given this goal, wind and solar likely will account for a growing part of the state's energy mix in the future. EIA expects that additional battery installations will support this growth.

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