Hydropower for sustainable water and energy development

Turkey has a total gross hydropower potential of 433 GWh/year, but only 125 GWh/year of the total hydroelectric potential of Turkey can be economically used. By the commissioning of new hydropower plants, which are under construction, 36% of the economically usable potential of the country would be tapped. Turkey presently has considerable renewable energy sources. The most important renewable sources are hydropower, biomass, geothermal, solar and wind. Turkey's geographical location has several advantages for extensive use of most of these renewable energy sources. Over the last two decades, global electricity production has more than doubled and electricity demand is rising rapidly around the world as economic development spreads to emerging economies. Not only has electricity demand increased significantly, it is the fastest growing end-use of energy. Therefore, technical, economic and environmental benefits of hydroelectric power make it an important contributor to the future world energy mix, particularly in the developing countries.     

A discussion on recent developments in Turkey's emerging solar power market

Market reform, energy security and environmental protection are three primary energy policy goals of Turkish government. Although Turkey's abundant solar energy resources can directly address the government's energy policy goals, Turkey has not utilized solar power yet. Utilization of country's huge solar energy potential would decrease dependence on imported fossil fuels and contribute to fulfill environmental commitments. However, lack of regulatory and financial support for the development of solar power has considerably delayed the utilization of country's huge solar potential. The government has taken only modest steps to promote investment in solar power until the end of 2010 when a new feed-in tariff policy was adapted. Turkey's solar energy potential, PV technology status and prospect for concentrating solar power in Turkey have been explored in a number of studies; yet literature dealing with recent policy developments, associated investment environment and opportunities for solar power investors are limited. The aim of this paper is to set out the latest legal framework for investment in Turkey's emerging solar power market and to provide some guidelines to potential investors who appreciated country's huge solar energy potential.     

As a renewable energy hydropower for sustainable development in Turkey

The most important renewable sources are hydropower, biomass, geothermal, solar and wind. Turkey's geographical location has several advantages for extensive use of most of these renewable energy sources. In recently, electricity has demand increased significantly; it is the fastest growing end-use of energy. Therefore, technical, economic and environmental benefits of hydroelectric power make it an important contributor to the future world energy mix. In the world, particularly in the developing countries renewable energy resources appear to be one of the most efficient and effective solutions for sustainable energy development in Turkey. Turkey's geographical location has several advantages for extensive use of most of the renewable energy sources. This paper deals with policies to meet increasing energy and electricity demand for sustainable energy development in Turkey. Turkey has a total gross hydropower potential of 433 GWh/year, but only 125 GWh/year of the total hydroelectric potential of Turkey can be economically used.     

Hydropower in Turkey for a clean and sustainable energy future

Over the last two decades, global electricity production has more than doubled and electricity demand is rising rapidly around the world as economic development spreads to emerging economies. Not only has electricity demand increased significantly, it is the fastest growing end-use of energy. Therefore, technical, economic and environmental benefits of hydroelectric power make it an important contributor to the future world energy mix, particularly in the developing countries. This paper deals with policies to meet increasing energy and electricity demand for sustainable energy development in Turkey. Turkey has a total gross hydropower potential of 433 GWh/year, but only 125 GWh/year of the total hydroelectric potential of Turkey can be economically used. By the commissioning of new hydropower plants, which are under construction, 36% of the economically usable potential of the country would be tapped. Turkey's total economically usable small hydropower potential is 3.75 GWh/year.     

On the wind energy in Turkey

Increase in negative effects of fossil fuels on the environment has forced many countries, including Turkey, to use renewable energy sources. Today, clean, domestic and renewable energy is commonly accepted as the key for future life, not only for Turkey but also for the world. As wind energy is an alternative clean energy source compared to the fossil fuels that pollute the atmosphere, systems that convert wind energy to electricity have developed rapidly. Turkey is an energy importing country, more than half of the energy requirement has been supplied by imports. Turkey's domestic fossil fuel resources are extremely limited. In addition, Turkey's geographical location has several advantages for extensive use of wind power. In this context, renewable energy resources appear to be one of the most efficient and effective solutions for sustainable energy development and environmental pollution prevention in Turkey. Since wind energy will be used more and more in the future, its current potential, usage, and assessment in Turkey is the focus of the present study. The paper not only presents a review of the potential and utilization of the wind power in Turkey but also provides some guidelines for policy makers.     

Development of geothermal energy utilization in Turkey: a review

Renewable energy is accepted as a key source for the future, not only for Turkey but also for the world. Turkey has a considerably high level of renewable energy sources that can be a part of the total energy network in the country. Turkey is located in the Mediterranean sector of Alpine–Himalayan Tectonic Belt and has a place among the first seven countries in the world in the abundance of geothermal resources. The share of its potential used is, however, only about 2–3%.The main objective of the present study is to review the development of geothermal energy (GE) utilization in Turkey, giving its historical development and opportunities. GE is used for electric power generation and direct utilization in Turkey, which is among the first five countries in the world in geothermal direct use applications. Direct use of geothermal resources has expanded rapidly last 36 years from space heating of single buildings to district heating, greenhouse heating, industrial usage, modern balneology and physical treatment facilities.Turkey presently has one operating geothermal power plant, located near Denizli City in Western Anatolia with an installed capacity of 20.4 MW_e and an electrical energy production of 89,597 MW h in 2001. Recently, the total installed capacity has reached 820 MW_t for direct use. The total area of geothermal heated greenhouses exceeded over 35 ha with a total heating capacity of 81 MW_t. Ground-source (or geothermal) heat pumps (GSHPs) have also been put on the Turkish market since 1998. Though there are no Turkish GSHP manufactures as yet, 207 units have been installed in the country to date, representing a total capacity of 3 MW.GE is a relatively benign energy source, displaying fossil fuels and thus reducing greenhouse gas emissions. So, it is expected that GE development will significantly speed up in the country if the geothermal law becomes effective.     

A review on the energy and exergy analysis of solar assisted heat pump systems

During the last decade, a number of studies have been conducted by various investigators in the design, modeling and testing of solar assisted heat pump systems (SAHPSs). This paper reviews the studies conducted on the energy and exergy analysis of SAHPS systems in Turkey and around the world as of the end of December 2004. The studies undertaken on the SAHPS systems are categorized into four groups as follows: (i) SAHPSs for water heating, (ii) SAHPSs with storage (conventional type) for space heating, (iii) SAHPSs with direct expansion for space heating, and (iv) Solar-assisted ground source heat pump greenhouse heating system (SAGSHPGHS). This paper investigates the studies on SAGSHPs, especially ground-source heat pumps, also known geothermal heat pumps, at the Turkish universities in more detail, by giving Turkey's solar energy potential.     

Subsidised Solar Lighting: The Only Option for 1 Billion People

Remote rural communities in developing countries are at a similar economic stage of development as was the developed world more than 100 years ago when electricity was used for more than 50 years for lighting and radio only. Not until people could afford refrigerators did electricity demand grow. Without direct capital subsidies by governments and cross subsidies by utilities the developed world would not be as developed as it currently is and certainly not those communities outside major cities and towns. Many rural areas in the developed world would be in a similar energy plight to those currently in the developing world! There currently is no technology that can meet a subsidy free energy supply anywhere in remote rural communities. The least cost option to meet the basic energy needs for the remote developing world is a properly designed solar system (systems designed up to an availability level not down to a price). To supply the one billion people without access to electricity would cost about US$112 billion (2005 $) in total subsidies using solar. But this will be less than the US$450 billion (2005) subsidy to meet their basic lighting needs using diesel energy.The user pays principle might work for McDonalds but 20 years working in developing countries has clearly demonstrated that there is something dramatically wrong with the current economic paradigms where basic infrastructure is required. It should not be the Private Sector that funds the development of remote rural lighting, they have demonstrated that they can only deliver too little too late, but the Public sector through their existing utilities with government direct subsidies if another generation is not to be lost to development. To demonstrate the need for a paradigm shift, over the past 20 years I have implemented and installed solar projects worth more than US$100million in many developing countries, but none with their utilities or energy departments. All the projects have been with rural development authorities that recognised the immediate need of their constituents and were not at all fussed by the concept of subsidisation. They actually know what it was like on the ground. Something that many energy authorities and utilities I fear have no idea about.     

Estimation of sector sales and employment changes associated with solar space and water heating development

There is little available information on sector-specific sales and employment impacts of a large-scale solar space and water heating industry. This study identifies those sectors of the economy which would be most affected by increased solar utilization and estimates the magnitude of the changes. The basic methodology involves augmenting an existing Input/Output table to include sectors reflecting solar technology. Data required to augment the matrix were obtained from questionnaires returned by existing firms involved in collector manufacture or solar space and water heating system sales. The augmented I/O matrix is inverted to generate a direct and indirect requirements matrix. The elements of this matrix estimate the changes in total sector output resulting from changes in final demand of other sectors. Estimates of final demand for solar heating systems by 1985 and projections of annual energy savings associated with solar installations to that time were obtained from existing studies. Using the computed direct and indirect requirements matrix and the assumed changes in the composition of final demand, estimates of changes in sales and employment were made for 131 sectors of the U.S. economy. It was determined that the sectors most affected by solar development will be those involved in electricity generation and the mining, refining, and fabrication of metals, especially copper. The proportionate changes in industry sales and employment are not expected to be very great. Only copper rolling and drawing is changed by as much as two percent. This finding suggests that the U.S. economy can accomodate an expanded use of solar heating without undue stress.     

Solar supported steam production for power generation in Egypt

The use of fossil fuels should be reduced in near future due to their limited resources and increasing ecological impacts. Therefore, increased interest and incentives have been created for development of electricity supply utilizing renewable energy such solar energy, which has long-range potential and is applicable in most geographical regions. This paper describes the methodology used to study solar supported steam generation in combined cycle power plants. The existing algorithms for unit commitment and production simulation were modified and extended to account for the mode of operation of these solar supported plants. Moreover, the economic impact of solar energy is assessed in the form of cost/benefit ratio to justify the substitution potential of such clean energy. The feasibility of solar energy substitution is illustrated using the planned 2×130 MW solar supported plant in Kuraymat, which would be integrated to the Egyptian unified power network.     

欧洲太阳能、风能产业发展及商品化实施方案

太阳能,风能作为可再生能源和替代能源受到欧洲各国的重视。它们通过减税,抵税,价格补贴等经济手段,鼓励扶持个人和企业发展太阳能,风能产业,大大推进了这一技术的产业化和商品化进程。     

Energy usage and cost in textile industry: A case study for Turkey

The Turkish textile industry holds a relatively important position in the world and thus plays a major role in Turkey's exports. Energy consumption is important for the textile industry in Turkey because it is the largest export sector. Energy usage in the textile industry in Turkey is inefficient, and energy consumption has been growing very rapidly due to population growth, rapid urbanization and industrial development. For future planning, it is important to know the current specific energy consumption (energy consumption/production) and the energy intensity (energy consumption/cost of energy) in order to estimate future energy consumption for the textile sector. In this study, a survey has been carried out to show energy consumption, energy cost and the relationship between the energy usage and textile production. The results of the energy survey have been presented in both figure and table form.     

Synfuel development impacts— econometric modelling and policy analysis

The prospects for rapid near-term development of a synfuel industry in the USA have decreased, due to depressed world oil prices, synfuel project cost overruns, and the lukewarm support of the Reagan administration. Nonetheless, socioeconomic and environmental impact analysis studies can provide valuable information for determining the regional welfare effects of proposed projects. The author discusses the results of a regional econometric analysis of the synfuel projects planned for Western Kentucky, which focuses on environmental impacts, and reveals the inevitable trade-offs that would accompany synfuel development. Some policy issues are briefly reviewed, especially that of efficient energy pricing.     

Concurrent and legacy economic and environmental impacts from establishing a marine energy sector in Scotland

We examine the economic and environmental impact that the installation of 3 GW of marine energy capacity would have on Scotland. This is not a forecast, but a projection of the likely effects of meeting the Scottish Government's targets for renewable energy through the development of a marine energy sector. Energy, with a particular focus on renewables, is seen by the Scottish Government as a “key sector”, with high growth potential and the capacity to boost productivity (Scottish Government, 2007a. The Government Economic Strategy. The Scottish Government, Edinburgh). The key nature of this sector has been identified through targets being set for renewable energy to achieve environmental and economic benefits. Using a regional computable general equilibrium (CGE) model of Scotland we show that the development of a marine energy sector can have substantial and beneficial impacts on GDP, employment and the environment over the lifetime of the devices, given the encouragement of strong indigenous inter-industry linkages. Furthermore, there are also substantial “legacy” effects that persist well beyond the design life of the devices.     

Energy production,consumption, policies,and recent developments in Turkey

Turkey is geographically in the middle of the world, which means it is surrounded by the Middle East, Central Asia and Europe. This area is not only geographically, but also economically, very important. Turkey has a very young and increasing population. In addition to the increase in population, a growing number of city dwellers and rapid economic development are causing more energy consumption. In the last 20 years, Turkey has become a considerably sized, growing energy market in the world. The domestic share of total energy consumption is 37%, and between the years 2000 and 2010, the cost for needed energy will be approximately 55 billion US$. The government has been planning for 81% of this amount as an investment. Considering the country's economic conditions, Turkey must come up the plan which reduces the share of fossil fuels, increases energy production (including use of more alternative energy sources), and changes the coarse of long-term energy plans into very effective and applicable solutions. In this study, energy reserves, energy demand, energy production, energy consumption, energy policies, and recent developments are investigated and evaluated.     

中国光伏产业与太阳能热利用产业的发展模式比较

中国的太阳能光伏产业和太阳能热利用产业近年来都呈现出较快的发展趋势,但二者的发展特征却迥然不同。中国光伏产业虽然起步较晚,但增长速度快,从2003年开始年增长速度都超过100%,2007年成为世界第一大太阳能电池生产国;太阳能热利用产业在20世纪90年代就已形成相当大的规模,年增长速度一直保持在20%左右,2009年中国太阳能热水器产量和保有量分别达到4200×104m2和14500×104m2。中国太阳能热利用产业可谓一枝独秀,占世界总产量的一半以上,且在产业链各个环节发展比较平衡;而中国光伏产业并不具有绝对优势,特别是产业链上游发展比较滞后。太阳能热利用产业整体上是靠国内市场推动发展的,呈现出比较典型的内生型增长特征;而光伏产业表现为"两头在外"的特征,一方面关键的多晶硅材料进口量较大,另一方面产品主要以满足国际市场需求为主。中国太阳能发展政策的目标低、扶持力度小、实质性促进政策少,对太阳能产业发展的促进作用比较有限。此外,市场需求、技术、经济等也是影响产业发展的主要因素。为促进我国太阳能产业的健康发展,建议政府应提高太阳能利用的目标,加快相关立法工作,加大鼓励力度,加强财税支持,注重技术的研发,规范产业发展。     

Going “green”: trade specialisation dynamics in the solar photovoltaic sector

The present study aims at providing a comprehensive analysis of trade flows and the domestic value creation of the major solar photovoltaic industry at the world level. Solar technologies convert light and heat from the sun into useful energy. The use of the sun's energy can not only reduce the consumption of conventional fuels, thus reducing the emission of detrimental greenhouse gases, but it can also enable a gain in enhanced fuel and energy security along with lessening costs. In addition, green technologies and industries can promote economic growth and international competitiveness, and can offer new business and employment opportunities. It becomes, therefore, extremely important to deeply explore the dynamics of the solar photovoltaic sector. Specifically, the present work analyses the main global trends of this sector and sketches the key players on the world market, including producers, installers, and top traders. Based on an analysis of trade flows at the 6-digit level, the international specialisation patterns are investigated, and the role of various market and trade drivers, including subsidies in the uptake of solar technologies, is identified and examined.     

Global warming and environmental benefits of hydroelectric for sustainable energy in Turkey

Over the last two decades; technical, economic and environmental benefits of hydroelectric power make it an important contributor to the future world energy mix, particularly in the developing countries. Turkey has a total gross hydropower potential of 433 GWh/yr, but only 125 GWh/yr of the total hydroelectric potential of Turkey can be economically used. By the commissioning of new hydropower plants, which are under construction, 36% of the economically usable potential of the country would be tapped. Turkey's total economically usable small hydropower potential is 3.75 GWh/yr. It is expected that the demand for electric energy in Turkey will be about 580 billion kWh by the year 2020. Turkey is heavily dependent on expensive imported energy sources that place a big burden on the economy and air pollution is becoming a great environmental concern in the country. In this regard, renewable energy resources appear to be the one of the most efficient and effective solutions for clean and sustainable energy development in Turkey. Environmentally friendly energy development has enormous implications for developing countries as major emitters due to their rapid economic and population growth. With some possible options, the paper concludes that the reduction of emissions can only be achieved when policies are supportive and well targeted, standards and incentives are realistic and flexible, and the public is actively responsive to environmental degradation. Turkey's high rate of energy-related carbon emissions growth is expected to accelerate, with emissions climbing from 57 million tons in 2000 to almost 210 million tons in 2020. Carbon intensity in Turkey is higher than the western developed nation average. In this regard, renewable energy resources appear to be one of the most efficient and effective solutions for clean and sustainable energy development in Turkey. This paper deals with Turkey's renewables energy sources for sustainable environment.     

Waves,currents, tides—problems and prospects

A quantitative estimation of the energy potential of ocean surface waves, ocean currents and tides and a review of the techniques for utilizing these renewable energy sources, their present state of development and their economic and environmental aspects are presented. The potential of wave power, which is in the order of 1–10 TW, could become a significant source of energy in regions of the world with favorable wave conditions, such as the United Kingdom and Japan. All wave-power schemes investigated today are in an early stage of development, and require more research to become commercially available. The prospects for utilizing ocean currents are relatively unattractive due to the small resource base and the possible environmental effects. Although tidal mills have been used since the eleventh century, today only one sizable tidal power plant has been built, the 240 MW_e Rance Tidal Power Station in France. The overall potential of tidal energy is about 3 TW, but only in certain locations of the world do the natural conditions promise technical and economic viability.