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A series on the development of different energy storage technologies around the state of Massachusetts.
A company in Marlborough believes it literally has the next hot technology in energy storage: molten metals.
Flow batteries use metals that react to generate electricity. But two Harvard professors teamed up to produce power from organic molecules.
Giant tanks filled with a liquid solution are offering a novel way to create a battery with unlimited capacity.
At the Northfield Mountain pumped storage hydroelectric station, generators are powered by a mountaintop reservoir.
With a state-sponsored $10 million competition, Massachusetts is hot on the trail of the holy grail. The holy grail of renewable energy that is.