From the article,
"The problem for a lot of renewable power sources — wind and solar farms, run-of-river hydro — is that they often pump out the most power when utilities don’t need it, but dim down when they really want it.
For electric utilities, balancing those peaks and valleys from intermittent energy sources is a major challenge to integrating them into the grid, which is why some B.C.-based firms are hoping to cash in on the development of energy-storage technologies.
ZincNyx’s technology, the so-called flow battery, is a regenerative fuel-cell system that takes in electricity when the power isn’t needed and uses it to create fuel out of zinc-oxide that is stored in a tank, and which is then run through a fuel cell that converts it back into electricity when it is needed."
Is this the answer to the challenge faced by renewable power? What other hurdles still remain?
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