This Singapore island may hold the keys to energy's future

A French firm experiments on the usefulness of hydrogen gas.

A report from Bloomberg said Engie SA is helping build a small, self-contained power grid on Semakau Island to demonstrate the usefulness of hydrogen gas in converting intermittent power from solar panels and wind turbines into stored fuel that can generate electricity days or even months later, when the need is higher.

Plummeting costs for solar and wind are helping renewable energy steal an ever-greater slice of the power generation pie from fossil fuels such as oil and coal. That makes it more and more vital to figure out how to spread out the brief but intense bursts of energy harnessed from the sun and wind to the more diffused needs of consumers.

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