STATISTICAL ANALYSIS OF THE RELATIONSHIP BETWEEN ENSO PHENOMENON AND WIND ENERGY PRODUCTION POTENTIAL IN EAST NUSA TENGGARA
Wind energy is a form of clean energy that can be used as an alternative to fossil energy used in generation of electricity in Indonesia. In its development, wind energy can be affected by interannual variations such as ENSO which may have an impact on wind speed and the potential energy that can...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/71820 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Wind energy is a form of clean energy that can be used as an alternative to fossil energy used in
generation of electricity in Indonesia. In its development, wind energy can be affected by
interannual variations such as ENSO which may have an impact on wind speed and the potential
energy that can be generated. The impact of ENSO on wind energy may vary depending on the
season and location, so it is necessary to carry out an impact analysis to accurately estimate the
changes that occur in the potential energy that can be generated.
In this study, statistical analysis was carried out involving observational data from four BMKG
meteorological stations located in East Nusa Tenggara, MEI v.2 NOAA data which represents
changes in ENSO, and NCEP data which respresents changes in pressure that occur in Indonesia.
First, wind speed data is extrapolated to a height of 100 m with the Hellman Power Law to estimate
the wind speed at a height which a typical wind turbine hub would be. Daily wind speed data and
NCEP data are averaged every two months to be used as a composite data that has the same
temporal resolution as MEI data. The data then is grouped into three ENSO categories: El Nino,
Neutral, and La Nina. Wind speed and pressure data during El Nino and La Nina are then compared
with Neutral ENSO data and the changes were analyzed.
The results of the statistical analysis of changes in pressure during La Nina and El Nino indicate
that there are increases and decreases in pressure gradients that occur in East Nusa Tenggara in
certain months. Meanwhile, the wind speed increases and decreases which varies between stations
in certain months. In general, both El Nino and La Nina have a positive effect on the annual average
power potential of the four stations. |
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