It seems like if you are already going to invest in a structure that tall you might as well go with a larger turbine. This leads me to question the sense of building ~$10,00 poles to get these ~100 feet off the ground just to install a turbine that is only 5' in diameter. You can't put something like this on fence posts. He says "The gold standard is Levelized Cost of Energy (LCOE), in which all of the costs associated with raw material, manufacturing, transportation, construction, operations and maintenance are factored into a cost per kWh based on expected output over the life of the device." In relation to that, you have to get fairly high off the ground to harvest faster wind speeds. ![]() One of the points he hits on are efficiency claims. ![]() Additionally, the design is claimed to keep it always pointing into the wind for maximum I missed that article the first time around but it was pretty good. That form factor reportedly results in minimal mechanical resistance, allowing it to spin very freely and to operate quietly – blade noise is one of the common complaints regarding rooftop wind turbines. It draws on the form of the nautilus shell, and the screw pump invented by ancient Greek mathematician Archimedes of Syracuse. The 75-kg (165-lb) 1.5-meter (5-ft)-wide Liam obviously doesn't look much like a typical turbine. Today the company officially introduced its Liam F1 Urban Wind Turbine, which is said to have an energy yield that is "80 percent of the maximum that is theoretically feasible." That's quite the assertion, given that most conventional wind turbines average around 25 to 50 percent. If Rotterdam-based tech firm The Archimedes has its way, however, that will soon change. Although it's getting increasingly common to see solar panels on the roofs of homes, household wind turbines are still a fairly rare sight.
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