How much energy do wind turbines generate?

Answer 1

Wind turbines, just like windmills, harness the energy of the wind to do something useful. Early windmills were used to grind grain and pump water and many still do today. Modern wind turbines are used to generate renewable energy in the form of electricity.

Answer 2

A very Modern HIGH TECH wind turbine would be about 40-50% efficient in converting the winds kinetic energy into mechanical energy in the turbine. Then of course, the generator would be 90-98% efficient for a VERY efficient generator. The German physicist Albert Betz that the maximum efficiency of converting wind kinetic energy to mechanical energy is 59%. This number was derived from a lengthy and accurate physics calculation. This limitation is due to the 2nd Law of Thermodynamics. Think of it this way, if all the kinetic energy of the wind has to go to the wind turbine, then all the wind particles would loose all their kinetic energy and stop completely. The wind particles would just build up and stop more wind from flowing past if this was true.

A heat engine is similar but the efficiency increases as the temperature of the engine increases relative to its surroundings. That is why bigger engines (think power stations) are more efficient, because they can run at higher temperatures.

Answer 3

Once you take away the wasted fossil fuel for plants on standby, the cost of maintenance and the inefficiencies associated with the wind turbines of today you end up with about 5% of rated power. Even when running they average 8% of rating.

A 1 million watt system will typically generate about 80,000 watts of power each hour. This is further offset when you add into the equation that a power plant is running in the background to supply the backup power as wind velocities change.

Once everything is added up they produce less power then it takes to build a unit.

This depends how large the wind turbine is and how windy the area is. Large wind turbines generate between 700kilowatts and 1.8 megawatts per hour, depending on how much wind there is at the time.

Answer 4

About four hundred-trillion-trillion ergs. Most of those ergs are converted into the parts (fan blades, generator, pivot, tower, etc.) . The balance is utilized in the assembly of the parts into the finished wind generator.

Answer 5

"Energy efficiency" is not a term applied to certain types of energy - rather, to energy conversion processes. For example, if you invent a process that harnesses energy from waves, and this process converts a certain percentage of this energy into useful work, wasting the remaining percentage, the percentage of energy used would be the energy efficiency.

Answer 6

The amount of energy generated by wind turbines varies depending on factors such as wind speed, turbine size, and location. On average, a single wind turbine can generate enough electricity to power hundreds of homes. Larger wind farms can generate electricity for thousands of homes or even entire communities.

Answer 7

Yes, they are energy efficent. But they are not totally practical; they are so noisy, and can kill birds etc.

Answer 8

Wind Tamer is the most efficient to my knowledge.

Answer 9

The efficiency of a Turbine, is roughly 40%.