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How do you tell ‘power’ and ‘energy’ apart? What is the difference between them? In the simplest terms, Power is a method of gathering and outlining the flow rate of energy. It is measured and noted in kilowatts (kW). The value of Energy is established by calculating the product of time and power. It is measured in kilowatt-hours (kWh). These calculations are of great importance to the operation of wind turbines. If wishing to determine how much electrical energy a turbine can produce.

For instance, a personal wind turbine produces 4 kW of output for 10 hours will have created40 kWh (units) of energy. It is generally thought that a customer may identify the wind turbine they find suitable by observing how much power it is capable of generating, perhaps by using such a calculation. Turbines have been known to produce levels ranging from, for instance,11 kW to 25 kW. Wind turbines are often described in terms of the maximum power they can produce e.g. 6 kW, However such estimates may be subjective or inaccurate, as the amount of energy generated may depend on factors like wind speed.

Customers may also be able to ascertain how much energy a turbine could produce every year by examining the wind speeds achieved at the location in a year, along with the power curve. It should also be known that, when selecting one wind turbine over another, the item with the greatest power rating does not consistently produce the most electrical energy.There are other areas to consider when making that determination.