Vol. 2 No. 1 (2008)
Articles

Connection between the potential wind energy and the windy days

Published December 31, 2008
Károly Tar
Tamás Tóth
Kornél Rózsavölgyi
pdf

APA

Tar, K., Tóth, T., & Rózsavölgyi, K. (2008). Connection between the potential wind energy and the windy days. Landscape & Environment, 2(1), 6–24. Retrieved from https://ojs.lib.unideb.hu/landsenv/article/view/2218

Preliminary wind climate information are required for the selection of the sites of energetic wind
measurements. Optimal locations of wind energy projects, where the amount of utilizable wind
energy can be forecasted with a good approach, can be determined using GIS and statistical methods.
Anyhow, it is necessary to elaborate methods what make posible to gain data for the wind potential of
a given location on the base of measured data. Monthly number of windy days can be such predictor
if its basic statistical parameters and its connection to the monthly mean wind power can be
determined. This latter one can be substituted by the area under the curve of the function fitted to the
hourly averages of the cubes of the wind speeds. A regression modell is fitted to the monthly number
of windy days and areas under the curve, on the base of time series of 7 Hungarian weather stations
and the error of the modell is determined. On this base, the modell is extrapolated to a 35 years long
period. The area under the curve proportional to the monthly mean wind power calculated on the base
of the monthly number of windy days show a significant decreasing trend in 4 Hungarian weather
stations.

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