Hawaii’s Solar Conundrum: Can Energy Storage Save the Day?

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Hawaii’s lead utility Hawaiian Electric (HECO) and other utilities in the islands have found that solar photovoltaics installations have grown far faster than their isolated grids can adapt to the intermittent flood of peak time energy. With an electricity tariff at least double the U.S. average, fuel-constrained Hawaii is a rare and now leading U.S. market where solar has reached parity with other energy costs.

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