Environmental Engineering Reference
In-Depth Information
The data used in this study are divided into three basic categories: electricity
power plants, consumption, and supply. The power plants data includes informa-
tion on hydro, thermal, wind, geothermal, gas, fuel oil, and hydro autoproducers.
These data come from Turkish Electricity Generation Inc. (EÜAŞ), Turkish Elec-
tricity Distribution Inc. (TEDAŞ), State Water Works (DSİ), Energy Market
Regulatory Authority (EPDK), Internet sources, journals and other relevant litera-
ture. The data were in various formats, including excel files, shape files, Jpeg etc.
The attributes of the data include: the name of the power plant, the location (prov-
ince and town), installed capacity, annual generation capacity, operation com-
mencement date, and present operational status. The electricity consumption and
supply data for all 81 provinces in the years 1997 to 2006 was obtained from the
Turkish Directorate of Statistics (TÜİK) in excel format.
This study utilised ArcMap and MapInfo, two major GIS software packages.
Therefore, all the data were transformed to a GIS data format, specifically the
shape file format (used by ArcMap). Using the master/slave registration method,
the Jpeg files were registered, and the necessary information was digitised into
different layers. The excel data files containing the attribute information were
linked to the spatial data (i.e., power plants and provinces) as a database. Conver-
sion from a shape file to the TAB file format (used by MapInfo) was performed as
needed.
14.3 Visualisation
Once the data is prepared for spatial analysis, the next step is to visualise it to de-
termine appropriate spatial data analysis methods. Visualisation is a simple and
useful spatial data analysis tool for data containing geographical information. It
provides researchers and decision-makers an idea of the situation in different loca-
tions with easily understandable colours or graphs. In short, visualisation can be
described as the visual summary of data sets containing geographical information.
In this study, thematic maps are used to visualise the installed capacities of the
electricity generation facilities, consumption, and supply for all of the provinces.
14.3.1 Installed Capacities of Electricity Generation Facilities
Based on the data collected in this study, the installed electricity generation capac-
ity of Turkey in December 2007 was calculated as 40,392.63 MW.
Table 14.1
shows the distribution of the electricity according to the different energy sources.
The hydro and thermal power plants are grouped into two categories: autopro-
ducers and non-autoproducers, where autoproducers are allowed to generate elec-
tricity for their own use in their facilities and may sell up to 40% to the main grid
(EPDK 2008).
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