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Energy Conversion and Management 72 (2013) 103–110 Contents lists available at SciVerse ScienceDirect Energy Conversion and Management journal homepage: www.elsevier.com/locate/enconman Current status of wind energy and wind energy policy in Turkey B. Yaniktepe a,⇑, M.M. Savrun a, T. Koroglu b a b Energy Systems Engineering Department, Osmaniye Korkut Ata University, Osmaniye, Turkey Electrical and Electronics Engineering Department, Osmaniye Korkut Ata University, Osmaniye, Turkey a r t i c l e i n f o Article history: Available online 15 April 2013 Keywords: Policy Renewable energy Turkey Wind energy a b s t r a c t Over the past decades, the importance of renewable and sustainable energy resources has increased in the world due to both the rapid increase in energy demand and disadvantages of the fossil fuels. Many countries, such as Turkey, aim to increase the use of renewable and sustainable energy sources with different incentive mechanisms. In parallel with these incentive methods being implemented, wind energy capacity in Turkey has a remarkable increase in the growing rates of renewable energy sources according to installed wind power. Up to now, several wind power projects have been developed at different regions of Turkey. This paper aims to analyze the potential and development of wind energy systems in Turkey. Besides, the current usage and development of wind power installations have been explored for the World and Turkey in detail at the end of the 2011. Furthermore, this study also presents tax exemption, support, and incentive mechanisms to develop new wind energy investments in Turkey. Ó 2013 Elsevier Ltd. All rights reserved. 1. Introduction Over the past several years, energy has become the keyword in the national and international economical development and sustainability of all countries as in Turkey. Energy is essential to most economic activities. Industrialized economies rely on commercial energy to transport goods and people, to heat homes and offices, to power engines and appliances, and to run shops and factories [1]. Nowadays, particularly renewable energy sources have been becoming important for the World due to both energy dependency and disadvantages of the fossil fuels. Advancing renewable energy development is the effective approach to address energy security and climate change. Currently, the US, Japan, Brazil and other some countries have listed development of renewable energy as an important strategy for the future [2]. Renewable energy which stems from natural sources such as sun light, wind, wave, water and geothermal heat sustains itself. Renewable energy is derived from resources which, for all practical purposes, cannot be depleted and also produce fewer pollutants. Renewable energy sources offer a lot of environmental and economical benefits in contrast to conventional energy sources. Therefore, this makes renewable energy fundamentally different from fossil fuels and it has prompted many countries, including Turkey, to promote its use through incentive and subsidy schemes. In addition, fuelled by preparations for joining the European Union and the approval of the Kyoto Protocol as an Annex I country, policy makers increas⇑ Corresponding author. Tel.: +90 3288251818/3550; fax: +90 3288250097. E-mail address: [email protected] (B. Yaniktepe). 0196-8904/$ - see front matter Ó 2013 Elsevier Ltd. All rights reserved. http://dx.doi.org/10.1016/j.enconman.2012.08.028 ingly recognize the potential role of wind power as part of the country’s future energy. Thus, the investment of wind energy as a renewable energy source has been carried out rapidly in the World and Turkey. Growing concern about emissions from fossil fuel generation has increased government support, and higher costs for fossil fuels have helped wind power capacity in the Turkey to grow substantially over the last decade [3–5]. Wind power is available from the kinetic energy of the mass of moving air. A wind energy system transforms the kinetic energy of the wind into mechanical or electrical energy that can be harnessed for practical use. Wind electricity generation systems convert wind energy into electricity by means of wind turbines. Furthermore, it can also be used for many other purposes such as pumping, grinding grain, sawing, pushing a sailboat and the like. Wind electric turbines generate electricity for homes and businesses and for sale to utilities [6]. Wind energy has many advantages, such as low cost, cleanliness, and abundance in everywhere in the world. All forms of energy production have an environmental impact; however, the impacts of wind energy are low, local, and manageable. These environmental impacts are negligible when compared with conventional energy sources. Wind energy is also known as a renewable and environmentally friendly energy source [3]. Moreover, it is the cheapest form of renewable energy, which encourages investment. It also creates benefits in terms of employment, investment, research, economic activity, and energy independence in the electricity sector [7]. Recently, the electric energy consumption in Turkey has been increasing very fast due to the development of industry and 104 B. Yaniktepe et al. / Energy Conversion and Management 72 (2013) 103–110 increment of the population. Although Turkey has a wide range of energy resources such as coal, natural gas, petroleum and the like, they are limited. Therefore, Turkey has started to investigate the alternative energy resources. As a consequence, the investigation of wind energy has been carried out rapidly in Turkey over the last two decades. There are many investigations in the literature about Turkey’s wind characteristics that are mainly focused on regions which are highly suitable for wind energy applications. There are also some investigations about the wind energy policy and strategy issue in Turkey. But there are no any studies on tax exemption assessment of Turkey on renewable energy. This provided prima motivation behind doing the present study. Related scientific and industrial communities may be attracted by this investigation. Erdogdu [8] not only presents a review of the potential and utilization of the wind power in Turkey but also provides some guidelines for policy makers. Current status of bioenergy and wind energy economics are focused on this article. Wind electricity status in Turkey is also investigated according to the recent developments on wind utilization in the world by Gokcek [9]. Kaygusuz and Sari [10] have analyzed those sustainable energy policies in Turkey. They reviewed the present energy situation and the role of renewable energy for future directions in the Turkish energy sector. Sevim [11] has examined the current electricity market of Turkey and economic parameters of wind energy investments. Hepbasli and Ozgener [12] have reviewed the development of wind energy in Turkey at the end of the October 2010. Kurban and Hocaoglu [13] have also examined briefly wind energy status in Turkey and especially investigated wind energy potential of Anadolu University campus area. Furthermore, Bilgili and Simsek [14], Kaygusuz [15], Hepbasli and Ozgener [16], Ilkilic [3], Ilkilic, and Turkbay [17] have also studied the potential and the development of wind energy systems in Turkey, installed capacity of Turkey and policy issue and strategies. This study focuses on the current state, potential, and development of wind energy systems in Turkey. The paper is organized in the following manner: The status of energy applications in the world is presented in Section 2. Section 3 provides installations of wind power in the world. Section 4 explains the current wind energy status in Turkey. Section 5 discusses the wind energy status and support/incentive mechanisms in Turkey, and Section 6 concludes and offers recommendations for the policy makers. 2. The status of energy applications in the world The demand for energy is increasing at an exponential rate due to the exponential growth of world population, industrial developments, and the world economy [12]. In addition to energy demand of the increasing population, the major activities which consume the majority of the energy generated in the world in industry are construction, textiles and cloth manufacturing, vehicle manufacturing, food processing, etc. [18]. Recently, World’s energy demand has increased gradually in parallel with the developments. The projections made by The International Energy Agency indicate that in case of continuation of the preferences of current energy policies and energy supply, world’s primary energy demand will increase by 40% between the years of 2007 and 2030 [19]. Electricity is one of the vital sources for human life and civilization. Nowadays, global electricity demand is also increasing with developing civilization and industrial levels [11]. The electrical energy production of the world in 2010 was 21,365 TW h, and it reached 22,018 TW h in 2011. Increasing rate in electricity demand between the years of 2010 and 2011 was calculated as 3.1% [20]. In meeting this huge energy demand of the world, mostly fossil fuels have been used up to now. As it can be seen from Fig. 1, Fig. 1. Primary energy consumption rates of World 2011. consumption rate of fossil fuels has a large proportion by 92% and energy consumption rate from the renewable energy and hydroelectricity energy are, respectively, 2% and 6% in 2011 [20]. Turkey, which is in the category of developing countries with respect to population, industrialization and the economy, is growing rapidly. While the population of Turkey was 70,586,256 as of 2007, it reached the value of 73,722,988 in 2010. Growing rate of the population of Turkey is approximately 4.44%. Furthermore, Turkey’s economy has shown a big increase in the 1st, 2nd, and 3rd quarters of 2011, with the values of 12.0, 8.8, and 8.2, respectively [21]. Turkey has left many countries behind with these growing rates of the economy. According to these developments, the increase in the amount of per capita energy consumption reveals the importance of energy. The growing rate of primary energy demand in Turkey stood at 4.3% annually on average in the period of 1990–2008 [19]. The value of primary energy consumption in Turkey was 108.8 Mtoe as of 2010, and it reached the value of 118.8 Mtoe in 2011 with the growing rate of 9.2% [20]. The World Energy Council Turkish National Committee (WEC-TNC) states that the electricity demand of Turkey will be 353,690 GW h by 2020. On the other hand, demand scenario which was organized by the Turkish Electricity Transmission Company (TEIAS) also implies that the annual growing rate of electricity demand will be between 6.3% and 8.4% from 2009 to 2016 [11,22,23]. Besides, the electrical energy production of the Turkey was 211.2 GW h in 2010 and it reached 228.4 GW h in 2011. Increasing rate in electricity production between the years of 2010 and 2011 was determined as 8.1% [20]. Consequently, Turkey has the most rapid increase in energy Fig. 2. Primary energy consumption rates of Turkey 2010. B. Yaniktepe et al. / Energy Conversion and Management 72 (2013) 103–110 105 Fig. 4. Wind power capacity by region. Fig. 3. Fossil fuel reserves 2011. demand in OECD countries over the last decade. As it is apparent in Fig. 2, fossil fuels are mostly used in order to meet the huge energy demand of the Turkey with the rate of 90% in 2010 [24]. Sekercioglu and Yilmaz have also stated that biggest share in total primary energy consumption is natural gas, oil, and coal [25]. Fossil fuels used for meeting the energy demand everywhere in the world with the largest percentage have many disadvantages. Most important drawback is quick exhaustion. It is estimated that fossil fuel reserves can handle approximately 100 years more. Remaining reserves of fossil fuels are mostly coal reserves. The largest rate of coal reserves is clearly seen in Former Soviet Union as shown in Fig. 3 [20]. This figure also displays that fossil fuel reserves of European Union have the lowest value. The combined effect of the widespread depletion of fossil fuels and the gradually emerging consciousness about environmental degradation has attracted institutions, organizations, and governments to find technologies and has given priority to the use of conventional, clean, and renewable alternative energy sources such as geothermal energy, hydraulic energy, wind energy, wave energy, biomass energy, and solar energy [12]. 3. Installations of wind power in the world From past to present, the basic needs of social and industrial life of the electrical energy can be obtained from renewable energies by using them in different applications. Over the years, renewable energy sources have shown different growing rates. The installed capacity of geothermal energy, which is a renewable energy, reached the value of 11.014 GW as of 2011. The installed capacity of solar energy also reached the value of 69.371 GW in 2011. In addition, the value of 239.485 GW in the installed capacity of wind energy was achieved at the end of 2011 [20]. Wind energy as a renewable energy source is now the leader in terms of installed capacity. Wind energy has the fastest growing rate of the renewable energy sources in the world with a 92% learning curve value. From 1997 to 2008, global installed wind power capacity increased by 35% per year [11]. In 1996, the installed wind power capacity was 6070 MW. Wind power capacity has grown by 20 times since 1996, and it reached the value of 122.158 MW at the beginning of 2009. The growth of wind energy is not evenly distributed around the world and is manifested in Figs. 4 and 5. By the end of 2011, installed wind energy capacity in the World reached 239.485 GW as in Fig. 6, around 40.4% (96.835 GW) of the worldwide wind energy capacity in Europe and Eurasia, a further 35.6% (85.156 GW) in Asia and the Pacific, and 22.3% (53.485 GW) in North America. As it is obvious from Figs. 4 and 5, the world leader according to the wind energy installed capacity is the European and Eurasia region, with almost half of the capacity world-wide [20]. Europe’s leading countries in wind energy are Germany, Spain, France, Italy, and United Kingdom. Increasing rate in wind power installed capacity in the world between the years of 2010 and 2011 was calculated as 20.5%. The majority of installed power has concentrated on the top 10 countries. According to the installed capacities, top 10 countries are China (62.412 GW), USA (56.144 GW), Germany (29.075 GW), Spain (21.726 GW), India (16.078 GW), France (6.836 GW), Italy (6.743 GW), England (6.470 GW), Portugal (4.214 GW), and Denmark (3.926 GW), respectively. Fig. 6 shows that China and USA have higher installed capacities than others [20]. However, Turkey is located in the back row in the ranking of wind power installed capacity with the value of 1.729 GW [26]. 4. The current wind energy status in Turkey Turkey is located between Europe and Asia like a bridge and surrounded by seas around three sides. The large part of the land of Turkey is in Asia, and the small part called as Thrace is in Europe [27]. Turkey has 81 cities and seven geographical regions, and its size is 785,347 km2 [28]. Turkey’s economy has a dynamical structure, and the economy is growing every year with applying different government policies [29]. Turkey is the most important country in their region due to her strategic place as an energy bridge between Asia and Europe. Turkey is an energy importing country; more than half of her energy requirement has been supplied by imports [30]. Because domestic fossil fuels are limited, almost all of the petroleum and natural gas needed is imported. Especially, hydro power plants and thermal power plants consuming fossil fuels have been used to meet the energy demand in Turkey. Fig. 7 presents the breakdown of electricity production rates in Turkey. According to Fig. 7, coal, natural gas, and hydro based energy are produced with the percentage of 33.14, 30.22, and 23.28, respectively [19]. However, renewable energy production rates have very low percentages. Moreover, only wind energy production rate is 3.11% (1.729 GW). It shows that wind power installed capacity is very low with respect to technical wind energy potential (80 GW) in Turkey. Renewable energy resources seem to be one of the most efficient and effective solution to prevent the environmental pollution, to decrease energy importing rate and to get sustainable energy in Turkey. Turkey is under the influence of different air masses because of its geographical location. These air masses of different areas cause potential wind energy generation possibilities. Hepbasli and Ozgener [16] specified that wind energy seems to be the 106 B. Yaniktepe et al. / Energy Conversion and Management 72 (2013) 103–110 Fig. 5. Share of total installed wind power in the World. most interesting domestic and clean energy source for Turkey owing to the important potential for the use of wind energy. Turkey’s wind energy potential has been determined as approximately 48,000 MW in a height of 50 m above from ground level and in areas where wind speeds are more than 7.5 m/s (Table 1). More than 98% of the wind energy potential is concentrated on regions of Aegean, Marmara, and the East Mediterranean. It is also estimated that Turkey has an economical wind power potential of about 10 GW [12]. Table 1 presents that Turkey has a rich wind energy potential [31]. 107 B. Yaniktepe et al. / Energy Conversion and Management 72 (2013) 103–110 Table 1 Wind speed, power density, and capacity of Turkey. Annual mean wind speed 50 m (m/s) Power density 50 m (W/m2) Capacity (MW) 7.0–7.5 7.5–8.0 8.0–9.0 >9 400–500 500–600 600–800 >800 29,259.36 12,994.32 5,399.92 195.84 Total 47,849 Fig. 6. Installed wind power in top 10 countries and Turkey. Fig. 8. Development of wind energy in Turkey. Fig. 7. Electricity production rates in Turkey. According to the Turkey Wind Map, prepared by the General Manager of Renewable Energy (EIE), wind speed at 50 m height and outside the residential areas, at Marmara, West Black sea, and the East Mediterranean coasts and inner parts of these regions are 6.0–7.0 and 4.5–5.0 m/s, respectively. The northwest Aegean coasts are also 7.0–8.5 m/s and in the inner parts are 6.5–7.0 m/s. All regions of Turkey are not suitable for the installation of wind turbines due to a topographic structure and a low level of wind energy potential [14]. Recently, wind energy investments have started a serious trend in Turkey in parallel with the ninth development plan and Renewable Energy Law which was published in 2005. As it is evident in Fig. 8, although wind power plant (WPP) investments have been Fig. 9. Installed wind farms in Turkey. 108 B. Yaniktepe et al. / Energy Conversion and Management 72 (2013) 103–110 Table 2 Under construction and licensed wind farms in Turkey. Table 2 (continued) Under construction WPP Under construction WPP Project name Installed capacity (MW) Soke-Catalbuk WPP AkRES Susurluk WPP Korkmaz WPP Mordogan WPP AyRES Banguc WPP Balikesir WPP Metristepe WPP Seyitali WPP Dagpazari WPP Senkoy WPP SahRES Karadag WPP Bozkaya WPP Madranbaba WPP Tokat WPP Soma II WPP 30 45 45 24 30.75 5.4 15 142.5 40 30 39 26 93 10 12.5 19.5 40 60.9 Project name Installed capacity (MW) Cerit WPP Petkim WPP Poyraz WPP Demirciler WPP Saritepe WPP Aloren WPP Meryem WPP Kandira WPP Saray WPP Zonguldak WPP Usak WPP Amasya WPP Incesu WPP Sincik WPP Seferihisar WPP Yalova WPP Zeytineli-2 WPP Yalakoy WPP Eber WPP 90 25 54.9 60 50 45 30 49 4 120 54 42 10 25 14 54 49.5 15 36 Licensed WPP Project name Installed capacity Alibeyhuyugu WPP Cesme WPP Turkeli WPP Atik WPP Aksu WPP Seferihisar WPP Kiblekayasi WPP Kiyikoy WPP Sarikayalar WPP Yurttepe WPP Geycek WPP Gazi WPP Sakarbayir WPP Aydos WPP Amasya WPP Balabanli WPP Alibey Adasi WPP Ovacik WPP Balikesir WPP Bereketli WPP Demircilik WPP Sarpincik WPP Çayonu WPP Kozbeyli WPP Samurlu WPP Alacati WPP Germiyan WPP Mordogan WPP Urla WPP Ardicli WPP Baglar WPP Gol Marmara WPP Golkaya WPP Sandikli WPP Urla WPP Subasi WPP Inebolu WPP Afyon 2 WPP Kahta WPP Dilek WPP Kapidag WPP Karacaoren WPP Uluborlu WPP Karakapi WPP Suloglu WPP Karaburun WPP Hamzabeyli WPP Mutlu WPP Hereke WPP Karadag WPP Dinar WPP 3 16 30 30 72 16 15 27 12 13.5 150 5 3 14 39 50 30 18 60 30 40 32 35 30 30 16 10.8 13.8 13 50 100 45 15 15 15 48 30 88 42.75 27.5 34.85 35 60 40 60 120 3 44 2 16.25 50 applied, it can be seen very low now on the European basis. Wind energy investments have increased seriously, and increasing ratio between 2010 and 2011 is 30.9%. Therefore, Turkey ranks fourth with this increasing ratio between European countries [20]. Turkey’s first wind farm connected to the network was established in 1998 and has a capacity of 1.5 MWs. The installed capacity of wind power was 9 MWs at the end of the 1998. Between the years of 1998 and 2005, wind power installed capacity grows very slowly and wind power installed capacity was also achieved as 20 MWs in 2005. However, wind power installed capacity begins to increase seriously after the Renewable Energy Law was put into force in May 2005. Thus, wind power installed capacity in Turkey reached 1.729 GW by the year of 2012. Fig. 9 indicates the map of installed wind farms in Turkey [26]. According to this map, installed wind farm investments have been applied to the regions of especially the coast of Marmara region, Aegean coast region, and Mediterranean coast region. Turkey has a lot of new investments as under construction and licensed wind power plants, as well. These investments are detailed in Table 2 [26]. The capacity of WPP in under construction is 708.55 MW. Besides, the licensed capacity of wind power plant is 2.572 GW. Results indicate that there is going to be remarkable wind energy investments in Turkey in the near future. Incentives coming from the Renewable Energy Law accelerate the wind energy investments. 5. Institutional framework and support/incentive mechanisms in Turkey Some of the institutions of wind energy in Turkey are as follows: the Ministry of Energy and Natural Resources (MENR) is responsible for the preparation and implementation of energy policies, plans, and programs in co-ordination with its affiliated institutions and other public and private entities. The General Directorate of Energy Affairs (EIGM) conducts studies and develops policies on renewable energy Within MENR. EIGM is responsible for the co-ordination of the electricity and natural gas reform programs. It also deals with the consequences of the past efforts to bring private investments into the electricity sector. The Electrical Power Resources Survey and Development Administration which changed its name as The General Manager of Renewable Energy (EIE) in 2011 is responsible for surveys and research on renewable B. Yaniktepe et al. / Energy Conversion and Management 72 (2013) 103–110 energy source and energy efficiency. The Energy Market Regulatory Authority (EMRA) regulates and supervises the electricity market and monitors the progress in the renewable energy segment of the market, as well. The main objective of Turkey’s energy policy is to supply the reliable and sufficient energy together with measures for environmental protection by supporting the economical growing and social development. Some of the main elements of Turkey’s energy policy according to MENR are the following: To increase in the variety of resources and energy security. To continue the reform studies needed for the sector. To consider the environmental impacts, supplying of increase for the investments in the all areas of the energy sector. To get an active role in the recognition and trade of hydrocarbons within the framework of ‘‘Energy Corridor and Terminal’’. Furthermore, utilization and development of new and renewable sources will be given priority, with particular emphasis on domestic sources to reduce dependence on imported, compatible with the environment, industry structure and the establishment of an energy system is targeted according to the ninth development plan [32]. In accordance with these policies applied by Turkey, installed wind capacity is expected to 10 GW by 2015. Besides, the objective of wind energy capacity in Turkey is also 20 GW by 2023, helping the country to source 30% of its electricity generation from renewable sources by 2023. In order to boost the use of renewable energy, in May 2005, the Turkish government published the first Renewable Energy Law (REL), which introduced tariff support for electricity produced by renewable sources. In May 2007, a revision of the law increased the tariff slightly to 5–5.5 Euro ct/kW h for a period of 10 years and in a reformation of 2010, tariff is also converted to USD 7.3 cent/kW h for wind energy. By this Renewable Energy Law, not only wind energy is encouraged, but also other renewable energies are promoted in a similar origin as it can be seen from Table 3 [33]. According to revised law in 2010, incentives cover the facilities that enter into operation at the end of 2013, with the reformation this time being extended until the end of 2015. In 2010, a local content element has introduced the Renewable Energy Law, which envisages an addition to the feed-in tariff of a maximum of USD 3.7 cent/kW h depending on how much locally produced content was used. Currently, local manufacturing of wind farm components are limited to blades and towers [34]. In the installed capacity of 500 kW or less, renewable energy source of energy production is exempted for licensing and company obligations considering the Renewable Energy Law. The excess energy produced from an investor’s own requirement, for a period of 10 years, can be sent to the Distribution Company in that region. While the level of support in Turkey is low in comparison with other European countries, wind power producers are free to sell to the national power pool or engage directly with eligible customers in bilateral agreements where prices are generally higher than the guaranteed price [34]. Table 3 Electricity production costs of renewable energy sources according to the REL. The type of facility based on energy source ABD Dollar cent/kW h Hydroelectric power production facility Wind power production facility Geothermal-based production facility Biomass-based production facility Solar energy-based production facility 7.3 7.3 10.5 13.3 13.3 109 Countries have developed support and incentive mechanisms to apply new wind power projects like Turkey. As a result, Turkey wind energy policy supports particularly domestic productions and new wind power projects. 6. Conclusion This study concluded that Turkey has a significantly high potential of wind energy. This potential can be utilized to satisfy a part of the total energy demand in the country. Turkey has about 48 GW wind energy potential. Marmara, Aegean, and Mediterranean coast regions are seen higher wind energy potential values compared with other regions. This investigation indicates that wind energy has the higher increasing rate than the other forms of renewable energy source in Turkey during the last 6 years. By the end of 2011, installed capacity of the wind power plants reached 1.729 GW in Turkey. Furthermore, wind energy installed capacity will be achieved as 20 GW in 2023 according to the Turkey’s general wind energy policy. The recommendations to Government of Turkey can be summarized as follows: To develop new financial mechanisms for investing wind energy projects. To encourage new investors for wind energy investments. To realize the production of wind turbine and instruments in Turkey rapidly. To develop new program for high quality human resources in the wind energy sector and to increase Research and Development on wind energy. To monitor and evaluate the wind energy policies and cost and effectiveness of Renewable Energy Law. To improve coordination among government agencies in wind energy sector. 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