How to calculate the wind power storage ratio

Is wind energy based on capacity factors & construction cost?

The statistic of wind energy in the US is presently based on annual average capacity factors, and construction cost (CAPEX). This approach suffers from one major downfall, as it does not include any parameter describing the variability of the wind energy generation.

What is the total installed capacity of a wind energy facility?

It is common practice to take as the total installed capacity of a wind energy facility the sum of the rated powers of all the turbines. Other design parameters such as hub height, and relative position of every turbine in arrays, and influence of the orography, are typically neglected in computing the total installed capacity.

What are the capacity factors of a wind farm?

From Table 1, the capacity factors are 0.32 to 0.38 on average, depending on the year, and strongly variable between different wind farms, from 0.15 to 0.50. The CaPEX of 7 given as the cost per unit nominal power, should be replaced by the cost per unit actual power.

How can wind energy supply match a given demand?

To match a given demand, supply from other resources must then compensate for the still intermittent and unpredictable total wind energy supply. In case of the further expanded capacity of wind energy also in excess of the grid demand, energy storage will have to accept the extra wind energy or supply the wind energy in defect of the demand.

Can a 8.5 MW wind farm be used as a test system?

An 8.5 MW utility-scale wind farm is used as a test system to demonstrate the effectiveness of the proposed approach. Energy storage systems (ESSs) can be charged during off-peak periods and power can be supplied to meet the electric demand during peak periods, when the renewable power generation is less than the power demand [1, 2].

What is the rated capacity of a wind farm?

A wind farm with a rated capacity of 8.5 MW is used as a test system in this study. The wind farm consists of 10 wind turbines with a rated capacity of 850 kW each. Each turbine has the following specifications : cut-out wind speed =25 m/s.