Sentences with phrase «slow wind turbines»

There also are concerns about bird and bat fatalities with wind technology, although there may be radar systems that can slow wind turbines as birds approach.

Not exact matches

We also shudder to think what Donald Trump, who thinks that the slow rotating blades of wind turbines miles offshore spoil his golf courses, would make of high - pitched whirring noises in the rarefied air above them.

WHEN the wind stops blowing and turbines slow down, we have to resort to coal and gas - powered stations for our energy needs.

This could be because like wind turbines, the blades rotate at relatively slow speeds.

In principle, they argue, the very existence of wind turbines could slow the planet's winds to the point where they couldn't generate any more energy.

Experiments at a site in Indiana in 2012 showed that feathering turbines when winds were slow reduced bat deaths by 30 percent on average.

Off - shore wind turbines could significantly slow hurricane winds and decrease storm surges, all while generating electricity.

Despite the potential collective loss of millions of dollars in electric generation, the U.S. wind energy industry has voluntarily committed to changing how turbines are operated during the bats» fall migration season, slowing blade rotations to fewer than 1 - 3 revolutions a minute, depending on blade length, thereby reducing the risk of collision.

«For decades, wind turbines have required cranes and huge towers to lift a few hundred feet off the ground where winds can be slow and gusty,» explained Ben Glass, Chief Executive Officer of Altaeros, a company led by alumni of Harvard and MIT.

China is cementing its role as a dominant producer of solar panels and wind turbines, and a number of European countries are continuing their slow move away from fossil fuels.

They tested a revised operating procedure slowing turbine blades to near motionless in low - wind periods significantly reduces bat mortality.

With the cost of wind - generated electricity now competitive with that generated from fossil fuels, constructing rows of wind turbines in strategic areas to slow the wind could greatly reduce the erosion of soil.

In the North Atlantic, in particular, the drag introduced by wind turbines would not slow down winds as much as they would on land, Possner and Caldeira found.

Would the energy extraction due to the storm spinning the turbines» blades slow the winds and diminish the hurricane, or would the hurricane destroy the turbines?

«We found that when wind turbines are present, they slow down the outer rotation winds of a hurricane,» Jacobson said.

The research, recently published in the Journal of Wildlife Management, demonstrates that slowing turbine blades to near motionless in low - wind periods significantly reduces bat mortality.»

An array of turbines will have an effect on wind flow similar to that of trees, they will slow the wind at lower levels due to the energy that they take from it and the turbulence that they cause.

When a wind turbine takes energy from the wind flowing through it, it slows that wind down.

There are theoretical factors that limit the maximum possible efficiency for wind or water turbines that are driven by the stream velocity to around 60 % — this has to do with the idea that the turbine can not slow the water down to zero velocity — there has to be some velocity to carry the water away from the turbine.

The authors simply dismissed actual reported field CFs as irrelevant and not valid because they allegedly apply only to short, «low - power turbines with small diameters in slow - wind areas [less than 7 to 7.5 m / s annual winds]...» The authors, however, fail to explain why the higher power windmills with large diameter blades were not available before, if indeed this combination is wind energyís economic panacea.

The job of any wind turbine is to extract energy from the wind, thereby slowing the movement of air.

If the wind begins to blow too hard, which can threaten the turbines, the software will automatically feather the blades, slowing them down, and direct the coal or natural gas plants to increase their output.