Tests conducted to reduce turbine noise; Herkimer County site uses quieting software on wind power units
The turbines, at 476 feet, are the tallest in the state so far. The two towns also were the first in the state to require sound testing of turbines after construction, rather than relying solely on pre-construction models to predict sound levels. ...Tests at the Hardscabble farm done in the spring and winter of 2011 found noise levels from the turbines were spiking as high as 60 decibles, Melewski said.
July 14, 2012
by Brian Nearing
in Times Union
FAIRFIELD - A Spanish utility that is the world's largest developer of wind power is testing ways to quiet its Herkimer County turbine farm, using a special software that is new to the U.S.
Iberdrola Renewables decided to install the new software, which adjusts blade positioning to reduce noise, after tests at its two-year-old, 37-unit Hardscrabble wind project found turbines were exceeding sound limits imposed by the towns of Fairfield and Norway.
This is the first use in the U.S. of the quieting software, developed by Gamesa, the Spanish company that built the wind turbines, said... [continue via Web link]