Energy Efficiency in Saudi Cement Industry

Saudi Arabia is the largest construction market in the Middle East, with large development projects under way and many more in the planning stage. The cement industry in the country is evolving rapidly and is expected to reach annual clinker production of 70 million tonnes in 2013 from current figure of 60 million tonnes per year. The cement industry is one of the highest energy-intensive industries in the world, with fuel and energy costs typically representing 30-40% of total production costs. On an average, the specific electrical energy consumption typically ranges between 90 and 130 kWh per tonne of cement. Keeping in view the huge energy demand of the cement industry, the Saudi Arabian government has been making efforts to reduce the energy consumption in the country towards a more sustainable.

Energy Demand in Cement Production

The theoretical fuel energy demand for cement clinker production is determined by the energy required for the chemical/mineralogical reactions (1,700 to 1,800 MJ/tonne clinker) and the thermal energy needed for raw material drying and pre-heating. Modern cement plants which were built within the last decade have low energy consumption compared to older plants.  The actual fuel energy use for different kiln systems is in the following ranges (MJ/tonne clinker):

  • 3,000 – 3,800 for dry process, multi-stage (3 – 6 stages) cyclone preheater and precalcining kilns,
  • 3,100 – 4,200 for dry process rotary kilns equipped with cyclone preheaters,
  • 3,300 – 4,500 for semi-dry/semi-wet processes (e.g. Lepol-kilns),
  • Up to 5,000 for dry process long kilns,
  • 5,000 – 6,000 for wet process long kilns and
  • 3,100–6,500 for shaft kilns.

Energy Efficiency in Cement Industry

With new built, state-of-the-art cement plants, usually all technical measures seem to be implemented towards low energy consumption. So, how to reduce it further?

Energy efficiency is based on the following three pillars

  • Technical optimization
  • Alternative raw materials for cement and clinker production
  • Alternative fuels

In Europe, the new energy efficiency directive from 2011 intends to reduce the energy consumption of the overall industry by 20%, achieving savings of 200billion Euros at the energy bill and with the goal to create 2 million new jobs within Europe. This approach will have a significant influence also on the cement industry. Saving 20% of the energy consumption is a challenging goal, especially for plants with state-of-the-art technology.

In older plants modernizations in the fields of grinding, process control and process prediction can, if properly planned and installed, reduce the electricity consumption – sometimes in a two digit number.

Alternative Fuels

Alternative fuels, such as waste-derived fuels or RDF, bear further energy saving potential. The substitution of fossil fuel by alternative sources of energy is common practice in the European cement industry.The German cement industry, for example, substitutes approximately 61% of their fossil fuel demand. The European cement industry reaches an overall substitution rate of at least ca. 20%.

Typical “alternative fuels” available in Saudi Arabia are municipal solid wastes, agro-industrial wastes, industrial wastes and some amount of crop residues. To use alternative or waste-derived fuels, such as municipal solid wastes, dried sewage sludges, drilling wastes etc., a regulatory base has to be developed which sets

  • Types of wastes/alternative fuels,
  • Standards for the production of waste-derived fuels,
  • Emission standards and control mechanism while using alternative fuels and
  • Standards for permitting procedures.

Alternative Raw Materials

The reduction of clinker portion in cement affords another route to reduce energy consumption. In particular, granulated blast furnace slags or even limestone have proven themselves as substitutes in cement production, thus reducing the overall energy consumption.

To force the use of alternative raw materials within the cement industry, also – and again –standards have to be set, where

  • Types of wastes, by-products and other secondary raw materials are defined,
  • Standards for the substitution are set,
  • Guidelines for processing are developed,
  • Control mechanisms are defined.

Conclusions

To reduce the energy consumption, an energy efficiency program, focusing on “production-related energy efficiency” has to be developed. Substantial potential for energy efficiency improvement exists in the cement industry and in individual plants. A portion of this potential will be achieved as part of (natural) modernization and expansion of existing facilities, as well as construction of new plants in particular regions. Still, a relatively large potential for improved energy management practices exists and can be exhausted by determined approaches.

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Food Security Strategy in Qatar

Qatar is a water-scarce and arid region which has its own share of demographic and socio-economic problems. The cultivation of food crops is a difficult proposition for Qatar due to scarcity of water supply and limited availability of arable land. The country is vulnerable to fluctuations in international commodity markets because of heavy dependence on imported grains and food items. The increasing dependence on foreign food imports is leading to a growing sense of food insecurity in Qatar.

Understanding Food Security

Food security is the condition in which all people at all times have a physical and economic access to safe, adequate and nutritious food to satisfy their daily calorific intake and allow them to lead an active and healthy life. Individuals who are food secure have an access to a sufficient quantity of food and do not live in fear of hunger and starvation. On the other hand, food insecurity exists simultaneously and inhibits certain groups of individuals from gaining access to nutritionally adequate and safe food. In the case of Middle East and North Africa (MENA) countries, food insecurity is related to poor quality diets rather than calorie-deficient diets. A typical diet in MENA region is high in saturated fats, sugar and refined foods which is a major cause for increase in chronic diseases in the region.

There are a multitude of factors which may challenge a nation from achieving food security. Some of these factors include; the global water crisis and water deficits which spur heavy grain imports in smaller countries ultimately leading to cutbacks in grain harvests. Similarly, intensive agriculture and farming drastically influence soil fertility and cause a decline in crop yield. Another notable factor limiting food security includes the adverse effects of climate change such as droughts and floods which greatly affect the agricultural sector.

The impacts of declining crop yields will include a change in productivity, livelihood patterns as well as economic losses due to declining exports. According to the Global Food Security Index, countries which are on top of the food security index include USA, Norway and China. The countries suffering from greatest food insecurity include, Democratic Republic of Congo, Togo and Chad.

Food Security Strategy in Qatar

Being one of the fastest growing economies in the world, Qatar is facing large-scale influx of expatriate workers which has resulted in tremendous increase in population in recent years. Limited land availability, chronic water scarcity and constraints in agricultural growth have led to growing concerns about food security. Agriculture plays a strategic role in the nation’s food security. Qatar imports over 90% of its food requirements due to the scarcity of irrigation water, poor quality soils and the inhibitions due to climatic conditions. Infact, the country is facing an agricultural trade deficit of QR. 4.38 billion equivalent to $1.2 billion. 

In response, Qatar has begun to address the situation by aiming to efficiently utilize ‘cutting edge technology’ to establish a sustainable approach to food security for dry land countries. The Qatar National Food Security Program (QNFSP) was established in 2008 and aims to reduce Qatar’s reliance on food imports through self sufficiency. The program will not only develop recommendations for Food Security policy but intends to join with international organizations and other NGOs to develop practices to utilize resources efficiently within the agricultural sector.

Qatar has established a nation-led National Food Security Program to encourage domestic production which will lead to scientific and technological development in two specific areas to increase domestic production. These areas include development in agricultural enhancement and food processing. QNFSP’s approach to expanding the agricultural sector aims to introduce the best practices and establishing a sector which considers its economic efficiency, optimal usage of scarce resources with limited impact on the environment as well as profitable and sustainable agriculture. A key element of this approach will include the deployment of advanced crop production technologies and advanced irrigation systems. The QNFSP will require well managed stakeholder participation, revised agricultural possibilities and of course a comprehensive strategy for agricultural research.

The nation’s second approach to increase domestic production includes regulations and implementations on food processing. Food processing increases the shelf-life of food, reduces raw food losses and enables the continuity of product availability. By enhancing the shelf-life of food and reducing the amount of food being wasted improves a nation’s food security. The QNFSP aims to develop the nation’s food processing industry by taking advantage of the new industry being established in Qatar which will allow the country to sell its own processed goods on the global market. To meet this objective the nation will need to implement international quality assurance mechanism to be capable of producing high quality products as well as to expand their food reserves and storage facilities.

Sahara Forest Project

In addition to the trenchant efforts being made by the Qatar National Food Security Program, an interesting and promising pilot project named Sahara Forest Project is being rigorously pursed in Qatar. The Sahara Forest Project allows for sustainable production of food, water and energy while revegetating and storing carbon in arid areas.

A one hectare site outside Doha, Qatar, hosts the Sahara Forest Project Pilot Plant. It contains a unique combination of promising environmental technologies carefully integrated in a system to maximize beneficial synergies. A cornerstone of the pilot is greenhouses utilizing seawater to provide cool and humid growing conditions for vegetables, The greenhouses themselves produce freshwater and are coupled with Qatar’s first Concentrated Solar Power plant with a thermal desalination unit.

An important part of the pilot is to demonstrate the potential for cultivating desert land and making it green. Outdoor vertical evaporators will create sheltered and humid environments for cultivation of plants. There are ponds for salt production and facilities for experimentation with cultivation of salt tolerant plants, halophytes. Additionally, the facility also contains a state of the art system for cultivation of algae.

References

Sahara Forest Project. "Sahara Forest Project in Food Security Program on Qatar TV." Sahara Forest Project. N.p., 2012. Web. 10 Dec. 2013. <http://www.goo.gl/ICjuKN>.

QNFSP. "Qatar Steps up to Food Security and World Hunger." Qatar National Food Security Programme. QNFSP, 2011. Web. 9 Dec. 2013. <http://www.qnfsp.gov.qa>.

Farhad Mirzadeh. "Qatar’s Seeks Solutions to Food Insecurity." American Security Project. N.p., 28 Oct. 2013. Web. 9 Dec. 2013. < http://www.goo.gl/LvY2em />

Bonnie James. "Qatar Food Security Plans Get a Boost." Gulf Times. N.p., 4 Nov. 2013. Web. 10 Dec. 2013. <http://www.goo.gl/wSc27F>.

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Renewable Energy Prospects in Kuwait

shagaya-renewable-energy-parkRenewable energy is in nascent stages in Kuwait, however there has been heightened activity in recent years mainly on account of the need for diversification of energy resources, climate change concerns and greater public awareness. The oil-rich State of Kuwait has embarked on a highly ambitious journey to meet 15 per cent of its energy requirements (approximately 2000 MW) from renewable resources by 2030. One of the most promising developments is the kick-starting of the initial phase of 2GW Shagaya Renewable Energy Park in 2015. Al-Abdaliyah integrated solar project is another promising solar venture currently at pre-qualification stage, which will have a total capacity of 280 MW, out of which 60 MW will be contributed by solar thermal systems.

Potential of Renewables

In Kuwait, the predominant renewable energy resource is available in the form of solar and wind. The country has one of the highest solar irradiation levels in the world, estimated at 2100 – 2200 kW/m2 per year. The average insolation of 5.2 kWh/m2/day and maximum annual sun hours of around 9.2 hours daily makes Kuwait a very good destination for solar power plant developers.

Wind energy also has good potential in the country as the average wind speed is relatively good at around 5m/s in regions like Al-Wafra and Al-Taweel. Infact, Kuwait already has an existing 2.4MW Salmi Mini-windfarm, completed in 2013, which mainly serves telecommunication towers in remote areas and the fire brigade station in Salmi. As far as biomass energy is concerned, it has very limited scope in Kuwait due to arid climate and lack of water resources.

Kuwait's Renewable Energy Program

Interestingly, Kuwait has been one of the earliest advocates of renewable energy in the Middle East with its involvement dating back to mid-1970s; however the sector is still in its early stages. The good news is that renewable energy has now started to move into development agenda and political discourse in Kuwait. The Kuwait Institute of Scientific Research (KISR) and the Kuwait Authority for Partnership Projects (KAPP) are playing an important role in Kuwait’s push towards low-carbon economy. KISR, in particular, has been mandated by the government to develop large-scale alternative energy systems in collaboration with international institutions and technology companies.

Kuwait’s renewable energy program, with the aim to generate 2GW renewable energy by 2030, has been divided into three stages. The first phase involves the construction of 70 MW integrated renewable energy park (solar PV, solar thermal and wind) at Shagaya which was scheduled to be completed by the end of 2016. The second and third phases are projected to produce 930 MW and 1,000 MW, respectively.

The Kuwait Institute for Scientific Research (KISR), founded in 1967, is one of the earliest research institutions in GCC to undertake commercial-scale research on potential applications and socio-economic benefits of renewable energy systems in Kuwait as well as GCC.

Shagaya Renewable Energy Park

Shagaya Renewable Energy Park comprises of solar thermal, solar photovoltaic and wind power systems, being built on a 100 km2 area in Shagaya, in a desert zone near Kuwait’s border with Saudi Arabia and Iraq. The $385 million first phase, scheduled to be operational by the end of 2016, will include 10MW of wind power, 10MW of solar PV, and 50MW of solar thermal systems. The project’s thermal energy storage system, based on molten salt, will have nine hours of storage capacity, one of the few projects worldwide with such a large capacity.

Shagaya is to Kuwait as Masdar is to Abu Dhabi.

Shagaya is to Kuwait as Masdar is to Abu Dhabi.

Future Perspectives

The major driving force behind Kuwait’s renewables program is energy security and diversification of energy mix. The country has one of the world’s highest per capita consumption of energy which is growing with each passing year. In recent years, the Middle East has received some of the lowest renewable-energy prices awarded globally for both photovoltaic and wind power which seems to have convinced Kuwait to seriously explore the option of large-scale power generation from renewable resources. However, Kuwait has a long way to go before renewable energy can make a real impact in its national energy mix.

Another key driver for Kuwait’s transition to low-carbon economy is its carbon and ecological footprints, which is among the highest worldwide. Widespread use of renewable power will definitely help Kuwait in putting forward a ‘green’ and ‘eco-friendly’ image in the region and beyond. The business case for green energy proliferation in Kuwait is strengthened by widespread availability of solar and wind resources and tumbling costs of alternative energy systems.

The City of Nouakchott – Perspectives and Challenges

Nouakchott, capital city of the Islamic Republic of Mauritania, is the biggest city in the Sahara region. Like other major cities worldwide, the city is plagued by environmental, social and economical challenges. Sewage disposal network, dating back to 1960’s is no longer sufficient for Nouakchott. The country is heavily dependent on fossil fuels and woody biomass for meeting energy requirements, though there is good potential of solar, wind and biomass energy. Solid waste management is becoming a major headache for city planners. Population is increasing at a tremendous pace which is putting tremendous strain on meagre civic resources.

Making of a City

Mauritania is a Western African country bordered by the Atlantic Ocean, Morocco, Algeria, Mali and Senegal. Most of its 1,030,700 km2 are covered by deserts. A country as wide as Egypt, it is only scarcely inhabited by some 3.500.000 people. A crossing of cultures, most of the country is inhabited by Arab nomads, the Moors, while the South is inhabited by the African Toucouleur and Soninke people.

Before the country became independent in 1960, the French founded the new capital city Nouakchott. Originally, Nouakchott was a city intended for 3.000 inhabitants. Most of the inhabitants were nomads and the city was established at a meeting place and cattle fair for the nomads. The etymology of the name may mean salt marsh or shore. The area is flat, protected from the sea by low dunes and originally bordered by savannah type vegetation.

After independence, the city grew very quickly, well beyond the expectation of its French founders. In the 1970’s Mauritania sided with Morocco in the Western Sahara war, and was badly defeated by the Polisario rebels. The war caused a massive arrival of refugees from the combat zones in Northern Mauritania. At the same time, drought and famine devastated the whole Sahel region which causes a large-scale refugee influx in the Nouakchott region.

Problems Galore

The arrival of refugees swelled the population of the city, making it the fastest growing city in the region, apart from causing a massive disruption in the environment. For decades, the majority inhabitants of Nouakchott lived in slums. The refugees came with their cattle and contributed to the destruction of existing savanna vegetation by overgrazing. The sand dunes quickly became loose and began to threaten the city from the East and North. Chaotic urbanization caused further environmental destruction, destroying the littoral zone.

The city also suffered social problems, as traditional ways of life disappeared. Former shepherds, agricultural workers and freed slaves became urban poors with little education and abilities to fit in a new economical model. The modern way of life lead to proliferation in plastics items and the landscape of Nouakchott got littered with all sorts of wastes, including plastic bags and bottles.

Nouakchott continues to grow with population reaching one million. However there is stark absence of basic amenities in the city.  Apart from several wells, there are no potable water supplies. The city had no bituminous road beside the two main avenues until recently. The city lacks urban planning, wastewater management and waste management. The construction of harbour and urbanization has led to the destruction of the littoral dunes. The city is in real danger of being flooded in case of sea storm or high tide. The most threatened place is Tevragh Zeina, the most affluent part of the city.

Sand dunes are another cause of worry for Nouakchott. In the 1990’s a Belgian project for the construction of a green belt helped in stopping the progression of dunes. However with expansion of the city, people have now started to build their dwellings in the green belt. The city is also at risk of being flooded in case of rain. In September 2013, during late rainy season, several parts of the city were flooded by rain. Parts of the city are still marked by semi-permanent sewage pools which are a major threat to public health.

Silver Lining

Environment and sustainable development has become a priority during rule of President Mohamed Ould Abdelaziz. The government has built roads in Nouakchott and constructed a water abduction system for bringing water from the Senegal River. Slums have been replaced by social dwellings for the poorest.  New schools, hospitals and universities are sprouting at a rapid pace.

Plans are underway to develop the interior of the country to stop internal immigration to Nouakchott. The country is also making made ambitious climate change strategies and has banned the use of plastic bags which has led to its replacement by biodegradable or reusable bags. Mauritania has rich biodiversity, especially in its sea. Infact, the country has many biodiversity hotspots which may attract people for ecotourism. 

There are huge challenges to be tackled to transform Nouakchott into a modern city. Due to nomadic links, Mauritania’s Arabs have a special link to desert and are counted among the environmentally-conscious people of Western and North Africa. However considerable efforts are required to educate the people living in and around Nouakchott and motivate them to become an active participant in sustainable development of the city.

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Energy Perspectives for Jordan

The Hashemite Kingdom of Jordan is an emerging and stable economy in the Middle East. Jordan has almost no indigenous energy resources as domestic natural gas covers merely 3% of the Kingdom’s energy needs. The country is dependent on oil imports from neighbouring countries to meet its energy requirements. Energy import costs create a financial burden on the national economy and Jordan had to spend almost 20% of its GDP on the purchase of energy in 2008.

In Jordan, electricity is mainly generated by burning imported natural gas and oil. The price of electricity for Jordanians is dependent on price of oil in the world market, and this has been responsible for the continuous increase in electricity cost due to volatile oil prices in recent years. Due to fast economic growth, rapid industrial development and increasing population, energy demand is expected to increase by at least 50 percent over the next 20 years.

Therefore, the provision of reliable and cheap energy supply will play a vital role in Jordan’s economic growth. Electricity demand is growing rapidly, and the Jordanian government has been seeking ways to attract foreign investment to fund additional capacity. In 2008, the demand for electricity in Jordan was 2260 MW, which is expected to rise to 5770 MW by 2020.

In 2007, the Government unveiled an Energy Master Plan for the development of the energy sector requiring an investment of more than $3 billion during 2007 – 2020. Some ambitious objectives were fixed: heating half of the required hot water on solar energy by the year 2020; increasing energy efficiency and savings by 20% by the year 2020, while 7% of the energy mix should originate from renewable sources by 2015, and should rise to 10% by 2020. 

Concerted efforts are underway to remove barriers to exploitation of renewable energy, particularly wind, solar and biomass. There has been significant progress in the implementation of sustainable energy systems in the last few years to the active support from the government and increasing awareness among the local population.

With high population growth rate, increase in industrial and commercial activities, high cost of imported energy fuels and higher GHGs emissions, supply of cheap and clean energy resources has become a challenge for the Government. Consequently, the need for implementing energy efficiency measures and exploring renewable energy technologies has emerged as a national priority.  In the recent past, Jordan has witnessed a surge in initiatives to generate power from renewable resources with financial and technical backing from the government, international agencies and foreign donors. 

The best prospects for electricity generation in Jordan are as Independent Power Producers (IPPs).  This creates tremendous opportunities for foreign investors interested in investing in electricity generation ventures. Keeping in view the renewed interest in renewable energy, there is a huge potential for international technology companies to enter the Jordan market.  There is very good demand for wind energy equipments, solar power units and waste-to-energy systems which can be capitalized by technology providers and investment groups.

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Waste-to-Energy in Jordan: Potential and Challenges

landfill-jordanEffective sustainable solid waste management is of great importance both for people’s health and for environmental protection. In Jordan, insufficient financial resources, growing population, rapid urbanization, inadequate management and lacking of technical skills represent a serious environmental challenge confronting local government. At the same time, energy remains Jordan’s top challenge for development. The energy needs to be produced in a sustainable way, preferably from renewable sources which have a minimum environmental impact. To face the future problems in waste management, as well as securing the demand of renewable energy, it is necessary to reuse the wasted resources in energy production.

Jordan has definitely acknowledged that making affordable energy solutions available is critical to support industries, investment, and attain sustainable growth. One option is to use solid waste to generate electricity in centralized plants. Waste-to-energy has been recognized as an effective approach to improve recycling rates, reduce the dependence on fossil fuels, reduce the amount of materials sent to landfills and to avoid pollution.

Waste-to-Energy Potential

According to recent statistics, Jordan population stands at around 9.5 million. The estimated municipal waste generated according to the last five years average production is around 3,086,075 ton/year. This huge amount of waste generated is not only a burden, but a potential resource for use in energy production. Considering the country average waste composition 40% is organic waste e.g. avoidable and unavoidable food waste (1,200,000 ton), 10 % are recyclable e.g. paper, plastic, glass, ferrous metals and aluminum (300,000 ton) and 50% are suitable for incineration e.g. garden and park waste, wood and textiles (1,500,000 ton) with high calorific value and energy potential (8.1 MJ/Kg) that is capable to produce electricity 340 kWh/ton waste. The high organic waste is suitable for methane gas capture technologies which is estimated at 170 m3/ton waste.

Technology Options

Nowadays, there are many technologies available which makes it possible to utilize these energy potentials. The major alternatives conventional technologies for large scale waste management are incineration, landfilling and anaerobic digestion. These technologies are affordable, economical visible and associated with minimum environmental impact. The production of electricity is combined with greenhouse gas (GHG) emissions, according to the current energy situation (90% of the country energy produced from fossil fuel), the country emission factor is around 819 CO2-eq/kWh. However, the use of waste to energy solutions is considered to be a clean and definitely the amount of GHG emitted is a lot less than the gases generated by ordinary practices (open dumping and unsanitary landfills).

Construction of an incineration plant for electricity production is often a profitable system even though the installation cost is high since production of electricity often leads to a large economic gain. Landfill gas utilization avoids the release of untreated landfill gases into the atmosphere, and produces electricity to sell commercially in an environmental friendly manner. However, landfilling is associated with methane production. Methane is a potent GHG, contributing 21 times more to global warming than carbon dioxide.

Anaerobic digestion technology is another option. Anaerobic digestion not only decrease GHGs emission but also it is the best technology for treatment of high organic waste through converting the biodegradable fraction of the waste into high-quality renewable calorific gas. Currently, with the growing use of anaerobic technology for treating waste and wastewater, it is expected to become more economically competitive because of its enormous advantages e.g. reduction of pathogens, deactivation of weed seeds and production of sanitized compost.

alghabawi-landfill-jordan

Sorting at the place of generation and recycling e.g. paper, plastic, glass and metals needed to be practiced at the country level or at least where these technologies implemented. Incinerated waste containing plastics (not sorted) releases carbon dioxide, toxic substances and heavy metals to the atmosphere and contributes thereby to climate change and to global warming.

Challenges to Overcome

Waste-to-energy technologies offer enormous potentials as a renewable energy sources and to mitigate climate change in Joran. However, these technologies pose many challenges to the country and discussion makers. Currently, the waste sector is administrated by the government. Poor regulation and insufficient financial resources are limiting the available options toward adapting these new technologies. Private investments and collaboration with the private sector is the key solution in this regard.

Energy Conservation in Bahrain

bahrain-energyBahrain has one of the highest energy consumption rates in the world. The country uses almost three times more energy per person than the world average. Based on 2014 statistics, the country consumes 11,500 kWh of energy per capita compared with the global average of 3,030 kWh. The country is witnessing high population growth rate, rapid urbanization, industrialization and commercialization with more visitors coming in, causing fast growing domestic energy demand and is posing a major challenge for energy security.

The Government is aware of this challenging task and is continuously planning and implementing projects to enhance the energy production to meet with the growing demand. The issue of efficient use of energy, its conservation and sustainability, use of renewable and non-renewable resources is becoming more important to us. The increasing temperatures and warming on the other hand are also causing more need of air-conditioning and use of electrical appliances along with water usage for domestic and industrial purposes. This phenomenon is continuing in Bahrain and other GCC countries since past two decades with high annual electricity and water consumption rates compared with the rest of the world.

Bahrain’s energy requirement is forecast to more than double from the current energy use. The peak system demand will rise from 3,441 MW to around 8,000 MW. While the concerned authorities are planning for induction of more sustainable renewable energy initiatives, we need to understand the energy consumption scenario in terms of costs. With the prices of electricity and water going up again from March 2017 again, it is imperative that we as consumers need to think and adopt small actions and utilize practices that can conserve energy and ultimately cost.

The country has already embarked on the Energy Efficiency Implementation Program to address the challenge of curbing energy demand in the country over the next years. The National Energy Efficiency Action Plan and the National Renewable Energy Action Plan (NREAP) have already been endorsed. The NREAP aims to achieve long-term sustainability for the energy sector by proposing to increase the share of renewable energy to 5 percent by 2020 and 10 percent by 2030.

Per capita energy consumption in Bahrain is among the highest worldwide

Per capita energy conservation in Bahrain is among the highest worldwide

As individuals, we need to audit how much energy we are using and how we can minimize our usage and conserve it. Whenever we save energy, we not only save money, but also reduce the demand for such fossil fuels as coal, oil, and natural gas. Less burning of fossil fuels also means lower emissions of carbon dioxide (CO2), the primary contributor to global warming, and other pollutants. Energy needs to be conserved not only to cut costs but also to preserve the resources for longer use.

Here are few energy conservation tips we need to follow and adopt:

  • Turning off the lights, electrical and electronic gadgets when not in use.
  • Utilizing energy efficient appliances like LED lights, air conditioners, freezers and washing machines.
  • Service, clean or replace AC filters as recommended.
  • Utilizing normal water for washing machine. Use washing machine and dish washer only when the load is full. Avoid using the dryer with long cycles.
  • Select the most energy-efficient models when replacing your old appliances.
  • Buy the product that is sized to your actual needs and not the largest one available.
  • Turn off AC in unoccupied rooms and try to keep the room cool by keeping the curtains.
  • Make maximum use of sunlight during the day.
  • Water heaters/ Geysers consume a lot of energy. Use them to heat only the amount of water that is required.
  • Unplug electronic devices and chargers when they are not in use. Most new electronics use electricity even when switched off.
  • Allow hot food to cool off before putting it in the refrigerator

Water-Energy Nexus in the UAE

desalination-plant-uaeThe United Arab Emirates has been witnessing fast-paced economic growth as well as rapid increase in population during the last couple of decades. As a result, the need for water and energy has increased significantly and this trend is expected to continue into the future. Water in the UAE comes from four different sources – ground water (44%), desalinated seawater (42%), treated wastewater (14%), and surface water (1%). Most of the ground water and treated seawater are used for irrigation and landscaping while desalinated seawater is used for drinking, household, industrial, and commercial purposes.

Water consumption per capita in UAE is more than 500 liters per day which is amongst the highest worldwide. UAE is ranked 163 among 172 countries in the world in total renewable water resources (Wikipedia 2016). In short, UAE is expected to be amongst extremely water stressed countries in 2040 (World Resources Institute 2015).

To address this, utilities have built massive desalination plants and pipelines to treat and pump seawater over large distances. Desalinated water consumption in UAE increased from 199,230 MIG in 2003 to 373,483 MIG in 2013 (Ministry of Energy 2014). In 2008, 89% of desalinated seawater in UAE came from thermal desalination plants and most of them are installed at combined cycle electric power plants (Lattemann and Höpner 2008). Desalination is energy as well capital intensive process. Pumping desalinated seawater from desalination plants to cities is also an expensive proposition.

Electrical energy consumption in UAE doubled from 48,155 GWh in 2003 to 105,363 GWh in 2013. In 2013, UAE has the highest 10th electricity use per capita in the world (The World Bank 2014). Electricity in UAE is generated by fossil-fuel-fired thermoelectric power plants. Generation of electricity in that way requires large volumes of water to mine fossil fuels, to remove pollutants from power plants exhaust, generate steam that turns steam turbines, to cool down power plants, and flushing away residue after burning fossil fuels (IEEE Spectrum 2011).

Water production in UAE requires energy and energy generation in UAE requires water. So there is strong link between water and energy in UAE. The link between water and electricity production further complicates the water-energy supply in UAE, especially in winter when energy load drops significantly thus forcing power plants to work far from optimum points.

Several projects have been carried out in UAE to reduce water and energy intensity. Currently, the use of non-traditional water resources is limited to minor water reuse/recycling in UAE. Masdar Institute launched recently a new program to develop desalination technology that is powered by renewable energy (Masdar 2013).

Water-energy nexus in the UAE should be resilient and adaptive

Water-energy nexus in the UAE should be resilient and adaptive

Despite their interdependencies, water-energy nexus is not given due importance in the UAE. Currently, water systems in the UAE are vulnerable and not resilient to even small water and energy shortages. To solve this problem, water-energy nexus in UAE should be resilient and adaptive. Thus, there is a need to develop and demonstrate a new methodology that addresses water and energy use and supply in UAE cities in an integrated way leading to synergistic type benefits and improved water and energy security. Modern, cutting-edge science and engineering methods should be used with the goal of developing a robust framework that can identifying suitable future development scenarios, selection criteria and intervention options resulting in more reliable, resilient and sustainable water and energy use.

References

IEEE Spectrum. How Much Water Does It Take to Make Electricity? 2011. http://spectrum.ieee.org/energy/environment/how-much-water-does-it-take-to-make-electricity (accessed December 6, 2016).

Lattemann, Sabine, and Thomas Höpner. "Environmental impact and impact assessment of seawater desalination." Desalination, 2008: 1-15.

Masdar. Renewable Energy Desalination Pilot Programme. 2013. http://www.masdar.ae/en/energy/detail/renewable-energy-water-desalination-in-uae (accessed 12 7, 2016).

Ministry of Energy. Statistical Data for Electricity and Water 2013-2014. Abu Dhabi, 2014.

The World Bank. n.d. http://data.worldbank.org/country/united-arab-emirates?view=chart (accessed December 6, 2016).

The World Bank. Electric power consumption (kWh per capita). 2014. http://data.worldbank.org/indicator/EG.USE.ELEC.KH.PC?year_high_desc=true (accessed December 7, 2016).

Wikipedia. List of countries by total renewable water resources. 2016. https://en.wikipedia.org/wiki/List_of_countries_by_total_renewable_water_resources (accessed December 6, 2016).

World Resources Institute. Ranking the World’s Most Water-Stressed Countries in 2040. 2015. http://www.wri.org/blog/2015/08/ranking-world’s-most-water-stressed-countries-2040 (accessed December 6, 2016).

Sustainability in MENA Cement Industry

The population in the MENA countries has doubled during the last 30 years (from ca. 110m in 1980 to almost 220m in 2010). As per conservative estimates, the rate of urbanisation in the MENA countries will exceed 70% five years from today (average for all developing countries: 54%). The proceeding urbanisation and the population increase involve several problems and challenges for the national governments and also for the cement industry. The cement production of countries in the MENA region has almost tripled during the last 15 years up to approximately 500m tons  Since the start of national revolts and demonstrations in MENA countries in 2011 the problems of especially young Arabs have attracted the attention worldwide.

Environmental problems that accompany a fast growing population and increasing urbanisation are, among others, increasing consumption of energy and raw materials, increasing land use in order to satisfy the increasing food demand, infrastructure development, disposal of increasing amounts of waste and development of sewage systems. Solving these generation spanning problems is a challenging task for the national governments.

Naturally, such high growth rates also affect the cement industry. In the MENA countries it consists of various companies, part of them listed on the stock exchange. A number of cement companies has, partly for cost aspects, responded to the negative consequences of the rapid population growth. The following paragraphs describe the cement industry’s approaches to push a sustainable development in certain sectors. They are partly driven by own responsibility and partly by regulations of the national governments. In this context it should be mentioned that the growth of the cement industry is already partly limited by factors that are directly connected with sustainability and raw material supply.

Although the factors differ from country to country and cannot be generalised, there are a few major concerns, for example:

  • Fuel shortage
  • Dependence on oil
  • Lack of investment in innovations

Let’s have a closer look on the limiting factors and innovation potential based on practical examples.

Saudi Arabia

In many industrialised countries the continuous and tailored supply of the industry with fossil fuels is only a question of price.  But the fact that of all countries, it was cement plants in the own country that repeatedly reported shortages of fossil fuel supply (heavy fuel oil), was certainly an important reason for the government to get closely involved in this matter.

Cement producers in the Kingdom of Saudi Arabia obtain state-subsidised natural gas at a price of US$ 0.75/mmbtu from the state-owned oil company “Saudi Aramco”. Formerly, the cement production costs resulting thereof were on average US$ 28.8/ton of cement (costs in neighbouring countries: Kuwait US$ 59.2/ton, UAE US$ 47.8/ton, Oman US$ 37.0/ton) which made it redundant to deal with the topic of energy. In India, a country with one of the highest energy costs in the world, the production of one ton of cement costs US$ 70.0/ton in 2010.

Due to such low energy prices and a steadily growing demand the production capacities grew constantly. Currently, the industry accounts for approximately 40% of the overall energy demand of the country. Analysts estimate that this demand will even double within the next 15 years. However, it is planned to reduce this disproportionate energy demand of the industry.

Under the patronage of HRH Prince Abdulaziz bin Salman, the state-owned oil company “Saudi Aramco” is developing a so-called “Mandatory Energy Efficiancy Program” (MEEP) for the entire Saudi-Arabian industry. The plan of MEEP is to “establish mandatory policies and regulations with the objective of reducing existing and future energy consumption levels in the industrial sector”.

For the national cement industry this approach implies investments in energy-saving measures. Key points for an energy-efficient industry are identified as

  • Use of alternative raw materials
  • Use of alternative fuels
  • Training and education in energy efficiency

As the use of alternative fuels and raw materials is not yet common in the Kingdom of Saudi Arabia, guidelines and a regulatory framework have to be defined which set standards for the use of alternative or waste-derived fuels like municipal solid wastes, dried sewage sludge, drilling wastes and others. It has to include:

  • Types of wastes and alternative fuels that may be used by the cement industry
  • Standards for the production of waste-derived fuels
  • Emission standards and control mechanisms while using alternative fuels
  • Standards for permitting procedures

Appropriate standards also need to be established for alternative raw materials that are to be used for clinker and cement production. In order to achieve an energy-efficient production special education, further training and workshops for the involved staff have to be carried out.

Egypt

The current political developments in Egypt influence the local cement industry significantly. The government expects additional sources of revenue on the one hand from selling licences for the construction of new cement plants and on the other hand from a reduction of subsidies for fossil fuels. Since these news are not a surprise for the local cement plants, they started to invest in the implementation of alternative – mostly biomass-derived fuels. One of them is CemexAssiut that not only started using different kinds of biomass, but also, most notably and exemplary, established plantations for the production of biomass (here: “Casuarina”) that are irrigated with pretreated sewage water from the city Assiut.

Egypt is the 14th biggest rice producer in the world and the 8th biggest cotton producer in the world. Egypt produced about 5.67 million tons of rice and 635,000 tons of cotton in 2011. The area of cotton crop cultivation accounts for about 5% of the cultivated area in Egypt. The total amount of crop residues is about 16 million tons of dry matter per year. Cotton residues represent about 9% of the total amount of residues. Such high production rates should be welcomed by the cement industry since these materials comprise cotton stalks, rice husks and rice straw which serve ideally as alternative fuels.

The use of waste-derived alternative fuels is, however, more complicated. Although for example Cairo produces some 15,000 tons of waste each day, it is not easy for the cement plants to obtain this waste since they are in direct competition with the informal sector that controls approx. 60% of the local waste total. So-called Zabbaleen or scavengers – mostly young people who do not have other options – make their living by collecting and selling waste-derived recyclables.

Tunisia

Some years ago, Tunisia already invested in the establishment of an organised waste management system in form of a state-owned agency named “ANGED”. Funded by the national German KfW development bank, numerous waste collection points as well as organised landfills have been built. Additionally, a special collection centre for hazardous waste was erected in Jradou. This centre was operated by MVW Lechtenberg’s Partner Nehlsen AG, the German Waste Management Group, collecting and processing wastes like used oils and solvents. Such wastes are ideal alternative fuels. A fact that is also known to the local cement companies that planned to use them in their plants. Unfortunately, due to public opposition the centre was closed and the projects for the processing of alternative fuels have been suspended since then.

Tunisia is one of the biggest producers and exporters of olive oil in the world. It also exports dates and citrus fruits that are grown mostly in the northern parts of the country. It seems paradox that for example olive kernels – the waste from Tunisian olive production – is exported to European power plants in order to save fossil fuel-derived CO2 emissions there, while Tunisia imports approximately 90% of its energy demand, consisting of fossil fuel.

Morocco

The Moroccan cement industry has already achieved a greater success regarding the use of alternative fuels. Cement plants, mostly owned by the international companies Lafarge, Cimpor, Holcim and Italcimenti, already invested years ago in the environmentally friendly use of alternative fuels and alternative raw materials due to the development of world market prices. Also the only local competitor, CIMAT, has started preparing for the implementation of alternative fuels immediately after completion of its new plant (a 5-stage double string calciner from Polysius) in Ben Ahmed, near Casablanca.

In the year 2003 an agreement on the use and import of alternative fuels (used tyres at the time) was made between the Association Professionelle de Ciment and Moroccan government. Since last year attempts are being made to agree on an industry regulation that sets standards for the use of all appropriate special waste available in Morocco.

United Arab Emirates

The United Arab Emirates, represented by Dr. Rashid Ahmad Bin Fahd, Minister of Environment and Water, recently issued a decision streamlining the activities of cement plants all over the country. The resolution will affect all existing and new cement factories across the country. Its provisions obligate the industry to prepare a report assessing the impact of cement plants on the environment.

According to the decision, this report has to be prepared by a consulting firm having expert knowledge regarding environmental protection in the cement industry. This is certainly the first step to evaluate the current situation which will be followed by an investigation of alternatives towards a sustainable development. Interest in the implementation of alternative fuels already exists among the national cement industry which is proven not least by the numerous planned investment projects.

Conclusions

The cement industry in the MENA region will change significantly within the next years. This change will focus on the improvement of energy efficiency and on the increased use of alternative raw materials and alternative fuels. This will include high investments in technology and in the human resources sector where the creation of new jobs, especially in the field of environmentally friendly and sustainable development, provides a perspective for the growing, young population of the MENA countries.

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Water-Energy Nexus in Arab Countries

Amongst the most important inter-dependencies in the Arab countries is the water-energy nexus, where all the socio-economic development sectors rely on the sustainable provision of these two resources. In addition to their central and strategic importance to the region, these two resources are strongly interrelated and becoming increasingly inextricably linked as the water scarcity in the region increases.  In the water value chain, energy is required in all segments; energy is used in almost every stage of the water cycle: extracting groundwater, feeding desalination plants with its raw sea/brackish waters and producing freshwater, pumping, conveying, and distributing freshwater, collecting wastewater and treatment and reuse.  In other words, without energy, mainly in the form of electricity, water availability, delivery systems, and human welfare will not function.

It is estimated that in most of the Arab countries, the water cycle demands at least 15% of national electricity consumption and it is continuously on the rise. On the other hand, though less in intensity, water is also needed for energy production through hydroelectric schemes (hydropower) and through desalination (Co-generation Power Desalting Plants (CPDP)), for electricity generation and for cooling purposes, and for energy exploration, production, refining and enhanced oil recovery processes, in addition to many other applications.

The scarcity of fresh water in the region promoted and intensified the technology of desalination and combined co-production of electricity and water, especially in the GCC countries. Desalination, particularly CPDPs, is an energy-intensive process. Given the large market size and the strategic role of desalination in the Arab region, the installation of new capacities will increase the overall energy consumption. As energy production is mainly based on fossil-fuels and this source is limited, it is clear that development of renewable energies to power desalination plants is needed. Meanwhile, to address concerns about carbon emissions, Arab governments should link any future expansion in desalination capacity to investments in abundantly available renewable sources of energy.

There is an urgent need for cooperation among the Arab Countries to enhance coordination and investment in R&D in desalination and treatment technologies.  Acquiring and localizing these technologies will help in reducing their cost, increasing their reliability as a water source, increasing their added value to the countries’ economies, and in reducing their environmental impacts. Special attention should be paid to renewable and environmentally safe energy sources, of which the most important is solar, which can have enormous potential as most of the Arab region is located within the “sun belt” of the world.

Despite the strong relation, the water-energy nexus and their interrelation has not been fully addressed or considered in the planning and management of both resources in many Arab countries. However, with increasing water scarcity, many Arab countries have started to realize the growing importance of the nexus and it has now become a focal point of interest, both in terms of problem definition and in searching for trans-disciplinary and trans-sectoral solutions.

There is an obvious scarcity of scientific research and studies in the field of water-energy nexus and the interdependencies between these two resources and their mutual values, which is leading to a knowledge gap on the nexus in the region.  Moreover, with climate change deeply embedded within the water energy nexus issue, scientific research on the nexus needs to be associated with the future impacts of climate change.  Research institutes and universities need to be encouraged to direct their academic and research programs towards understanding the nexus and their interdependencies and inter-linkages. Without the availability of such researches and studies, the nexus challenges cannot be faced and solved effectively, nor can these challenges be converted into opportunities in issues such as increasing water and energy use efficiency, informing technology choices, increasing water and energy policy coherence, and examining the water-energy security nexus.

References
1. Siddiqi, A., and Anadon, L. D. 2011. The water-energy nexus in Middle East and North Afirca. Energy policy (2011) doi:10.1016/j.enpol.2011.04.023. 
2. Khatib, H. 2010. The Water and Energy Nexus in the Arab Region. League of Arab States, Cairo.
3. Haering, M., and Hamhaber, J. 2011. A double burden? Reflections on the Water-energy-nexus in the MENA region. In: Proceedings of the of the First Amman-Cologne Symposium 2011, The Water and Energy Nexus. Institute of Technology and resources Management in the Tropics and Subtropics, 2011, p. 7-9. Available online: http://iwrm-master.web.fh-koeln.de/?page_id=594.

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Progress of Green Building Sector in Qatar

There has been rapid progress in green building sector in Qatar with the emergence of many world-class sustainable constructions in recent years. With the fifth-highest number of LEED-registered and certified buildings outside the U.S., Qatar has valuable experience and inputs to offer on the system’s local relevancy and application. Various countries in the Middle East have been accredited with regards to the LEED system. Of these buildings, 65 per cent (802) are located in the UAE. Qatar is ranked second on the list, with 173 green buildings, followed by Saudi Arabia (145), Lebanon (25) and Egypt (22).

 

Qatar’s Green Building Rating System

Qatar has developed established its own assessment called Global Sustainability Assessment System (GSAS), formerly known as the Qatar Sustainability Assessment System (QSAS) system specifically developed for the State of Qatar. GSAS is billed as the world’s most comprehensive green building assessment system developed after rigorous analysis of 40 green building codes from all over the world. The assessment criterion takes into consideration various categories related to sustainable development and its impact on environmental stress mitigation. Each criterion elucidates the requirements of reducing environmental stress and a score is then given to each criterion based on the level of compliance. QSAS is assessed on the following eight categories; urban connectivity, site, energy, water, indoor environment, materials, management and operations and cultural – economic values. Qatar has incorporated QSAS into Qatar Construction Standards 2010 and it is now mandatory for all private and public sector projects to get GSAS certification. 

 

Qatar Green Building Council

The Qatar Green Building Council (QGBC) was established in 2009 to promote sustainable growth and development in Qatar through cost efficient and environment-friendly building practices. The organisation aims to support the overall health and sustainability its environment, people and economic security in Qatar for generations to come. As one of the 30 members of the LEED roundtable, the Qatar Green Building Council endeavour to prioritise factors such as environmental conditions and its influence on green buildings. For instance, in arid regions such as Qatar, improving a building’s water efficiency in order to reduce the burden on local supply is a priority.

 

Benefits for Qatar

Sustainable development has been identified as one of the top priorities in Qatar’s National Development Strategy. The ultimate objective of green buildings is to reduce the overall impact of the built environment on human health and the natural environment. This can be promoted by using water, energy and other resources more efficiently as well as ensuring occupant health and improving employee productivity. Green buildings can bring a variety of social, economic and environmental benefits for Qatari residents. Through rainwater harvesting, greywater recycling and renewable energy systems, green buildings can promote water conservation, energy management as well as climate change mitigation. Moreover, this can also bring along sizable reduction in operation costs and offer long-term savings. Finally, sustainable buildings in Qatar can improve overall health of the occupants by tackling common issues such as insufficient air circulation, poor lighting and temperature variances. Green buildings emphasize natural ventilation which creates healthier and more comfortable living environments.

 

Qatar National Convention Center – A Shining Example

The Qatar National Convention Center, located in Doha, has recently been accredited for its approach to environmental stress mitigation. The 177,000 square meter structure has been commended for its recognition as one of the world’s most iconic energy-efficient convention centers built to date. The building has 3,500 square meters of its roof areas with solar panels, contributing 12.5% of the building total electrical consumption. Other contributors include, LED lighting, air volume systems and carbon dioxide monitors. The building has also gained recognition for being one of Qatar’s first environmentally sustainable structures which has even been given the gold certification standards under the LEED system equivalent to 6 stars on the QSAS.

 

Conclusion

Structures such as the Qatar National Convention Center will be a benchmark for all future green structure in Qatar. With an increase in population along with an ailing environment, it is absolutely necessary that we begin to take an approach that is suitable to the demands of our time. It is heartening to see that Qatar has recognised the importance of green architecture and lucrative benefits associated with it. 

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Waste-to-Energy Outlook for the Middle East

The high rate of population growth, urbanization and economic expansion in the Middle East is not only accelerating consumption rates but also increasing the generation rate of all sorts of waste. High-income Middle Eastern countries like Saudi Arabia, UAE, Qatar, Bahrain and Kuwait are counted as world’s largest waste producers in terms of per capita waste generation which is more than 2kg per day in some countries. The urban waste generation from the region has now crossed 150 million tons per year which has forced policy-makers and urban planners to look for sustainable waste management solutions, including recycling and waste-to-energy.

Let us take a look at solid waste generation in major countries across the Middle East region:

Country

MSW Generation

(million tons per annum)

Saudi Arabia

15

United Arab Emirates

6

Qatar

2.5

Kuwait

2

Bahrain

1.5

Egypt

20

Tunisia

2.3

Morocco

5

Lebanon

1.6

Jordan

2

In addition, huge quantity of sewage sludge is also generated in the Middle East which presents a serious problem due to its high treatment costs and risk to environment and human health. On an average, the rate of wastewater generation is 80-200 litres per person each day and sewage output is rising by 25 percent every year across the region.

Conversion Pathways

Municipal solid waste is a very good source of biomass in the Middle East. Municipal solid waste is comprised of organic fraction, paper, glass, plastics, metals, wood etc. Almost 50% of the solid waste is contributed by organic matter.

Municipal solid waste can be converted into energy by conventional technologies (such as incineration, mass-burn and landfill gas capture). Municipal solid waste can also be efficiently converted into energy and fuels by advanced thermal technologies, such as gasification and pyrolysis.

At the landfill sites, the gas produced by the natural decomposition of MSW is collected from the stored material and scrubbed and cleaned before feeding into internal combustion engines or gas turbines to generate heat and power. In addition, the organic fraction of MSW can be anaerobically stabilized in a high-rate digester to obtain biogas for electricity or steam generation.

Anaerobic digestion is the most preferred option to extract energy from sewage, which leads to production of biogas and organic fertilizer. The sewage sludge that remains can be incinerated or gasified/pyrolyzed to produce more energy. In addition, sewage-to-energy processes also facilitate water recycling.

Relevance for Middle East

The variety of technological options available means that waste-to-energy can be applied at a small, localized scale primarily for heat, or it can be used in much larger base-load power generation capacity whilst also producing heat. Waste-to-energy conversion can thus be tailored to rural or urban environments in the Middle East, and utilized in domestic, commercial or industrial applications in the entire region.

The world’s dependence on Middle East energy resources has caused the region to have some of the largest carbon footprints per capita worldwide. The GCC region is now gearing up to meet the challenge of global warming, as with the rapid growth of the waste management sector. During the last few years, UAE, Qatar and Saudi Arabia have unveiled multi-billion dollar investment plans to Improve waste management scenario. In particular, the establishment of Domestic Solid Waste Management Centre in Qatar has catalyzed public interest in deployment of waste-to-energy systems in the Middle East.

Energy recovery from MSW is rapidly gaining worldwide recognition as the fourth ‘R’ in sustainable waste management system – Reuse, Reduce, Recycle and Recover. A transition from conventional waste management system to one based on sustainable practices is necessary to address environmental concerns and to foster sustainable development in the region.

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