We’ve covered a number solar powered streetlights over the past year or so. Now, a concept design for illumination via renewable energy near docks or quays: the Flowlight tidal power streetlight system by Shane Molloy (which comes to us via Tuvie).
The system is composed of a series of street lamp-style carbon fiber poles lacking in a lamp–they are used, rather, to hold aloft a series of LED strip lights. Down below, under the waterline, these poles are connected to water turbine blades (protected by sub-floatation housing units to shield the blades from rock-strewn river bed) designed to operate both clockwise and anti-clockwise, in keeping with the river’s flow. During periods of high and low tide, the turbines harvest energy , which in turn illuminates the LED strip lights after dark.
While the Flowlight system was designed, specifically, for the quayside of the River Suir in Ireland, we think it could work equally well anywhere with a river close enough to sea level to respond to the tides, or even around deep seaside harbors.
From a functional point of view, it makes good sense to harvest renewable energy close to the point of consumption, and from an aesthetic point of view, that LED strip lighting is bound to look pretty cool reflected in the water.