Calgary - An engineer with Shell Canada has come up with a way to use a by-product from the oilsands of Alberta to create large utility-scale electricity storage for renewable energy projects.
Vanadium is a lesser-known medium-hard, steel-blue metal that rarely exists in nature as a free element, but it can be found in about 65 minerals, including magnetite, vanadinite, carnotite, and patronite. It also can be found in phosphate rock and in the oil sands of Canada . . .

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