Hawaiian Electric receives first Tesla Megapacks for 40-MW Waena battery storage project on Maui
Bitget2026/09/21 20:51- Hawaiian Electric reached a construction milestone on its Waena Battery Energy Storage System in Central Maui with the first six Tesla Megapacks installed.
- The 40-MW, 160-MWh standalone project is designed to shift renewable output to peak demand, supporting Maui grid reliability.
- Fifty-four Megapacks are planned; the project ranks among Hawaii’s largest battery systems.
- In-service is targeted for 2027; the project supports the utility’s 2045 goal for 100% renewable electricity.
- Maui County currently gets about 41% of electricity from renewables; the system will include grid-forming technology to improve stability.
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