All three meanings of that word apply.

First, "current" meaning the flow of water -- in this case, the tidal flow in the east channel of New York's East River. Second, there's the electrical current being generated from the tides that run through that channel: 7,100 kilowatt hours so far using hydrokinetic turbines. Third, there's the sense of "current" meaning "now," as in right now the turbines generating current current have been hoisted out of the water and are not generating electricity. That's because the East River's current is surprisingly strong -- so strong it keeps snapping the ends off the turbine blades or shearing the bolts attaching the blades to the hubs.

A company called Verdant Power is running the project and trying to figure out how to build turbines that won't break. But even the setbacks seem not to faze the boss.

"The only way for us to learn is to get the turbines into the water and start breaking them,” Trey Taylor, Verdant Power's founder, told the New York Times.

This is an idea worth watching or adapting for other oceanfront cities such as, oh, I don't know...Vancouver, just to come up with an example off the top of our heads.