Short article for a potential new green common sense item. Eco shocker: Turbine Light concept uses wind to light highways -- Engadget
nice but even with cars passing i dont thin there wil be good enough wind and that compleet with day after day with also no wind from nature because there is no wind at some days then there also will be no lights i only see this connected to the normal grid to provide lights when there is no wind and or no backupped ( battery ) energy from during the day. and when there is green energy ( the wind ) it wil not use energy from the grid so it wil be cleaner
Sort of like a solution in search of a problem! A, what do we need all these street lights for, isn't that what head lights are for? IMHO there are too many urban lights already, and B. vertical axis wind turbines are mostly a pipe dream. Even IF someone comes up with a reliable design, they are by the basic physics very inefficient. The reality is there is very little power[/B available in wind speeds under a consistent 12-15 mph,, The Chart below represents the potential power available, not the havestable power. In addition, all small scale wind comes with considerable maintenance issues. Unlike PV solar, you have moving parts that have to contend with heat, sun, rain, ice, snow and indeed wind. The sad reality is that there are few people who have installed small scale wind who after a few years have been very satisfied with it. Either their output is far less than expected (because they over estimated their average wind) or their maintenance has been much more than expected, usually as a result of poor quality hardware, but also because folks also under estimate the damage too much wind can do! On a dollar for dollar basis, net/net over time PV wins in almost any (small scale) configuration. That said, I am a great proponent of larger scale wind. Most of the problems of small scale wind are not present in large scale, largely because it's bigger. Large scale is not nearly as effected by gusting as small scale, as the mass of the turbine is so much greater. It also doesn't have the bearing failure potentials that small scale does, and in most large scale wind, you don't have to take the turbine down to service.