A Primer on Landfill Gas Recovery

Landfill gas (or LFG) is generated during the natural process of bacterial decomposition of organic material contained in municipal solid waste landfills or garbage dumps. The waste is covered and compressed mechanically as well as by the weight of the material that is deposited above. This material prevents oxygen from accessing the waste thus producing ideal conditions for anaerobic microorganism to flourish. This gas builds up and is slowly released into the atmosphere if the landfill site has not been engineered to capture the gas. The rate of production is affected by waste composition and landfill geometry, which in turn influence the … Continue reading

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 … Continue reading

Waste-to-Energy in Jordan: Potential and Challenges

Effective 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. … Continue reading

Water-Energy Nexus in the UAE

The 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 … Continue reading

Algae-Powered Buildings: A Futuristic Invention

In an environment where the carbon footprint is becoming increasingly large, we need to start developing sustainable solutions which can keep greenhouse gases at bay. It is estimated that the building industry contributes to almost 40% of all of Australia’s greenhouse gas emissions! To put this into perspective, this consists to a whopping 90 megatons of emissions that are emitted annually in constructing new buildings and maintaining the infrastructure of pre-developed ones. It is time for us to take action! At Certified Energy, we believe in creating a sustainable future so that the building industry can thrive and support our … Continue reading

Solar Energy in Jordan

The solar energy potential in Jordan is enormous as it lies within the solar belt of the world with average solar radiation ranging between 5 and 7 KWh/m2, which implies a potential of at least 1000GWh per year annually. Solar energy, like other forms of alternative energy, remains underutilized in Jordan. Decentralized photovoltaic units in rural and remote villages are currently used for lighting, water pumping and other social services (1000KW of peak capacity). In addition, about 15% of all households are equipped with solar water heating systems. Jordan has major plans for increasing the use of solar energy. As per the Energy … Continue reading

Energy Efficiency in Arab World: Key Findings of Arab Future Energy Index 2017

Energy efficiency is the most cost effective means of reducing the energy intensity of the economy and promoting a low-carbon future in the Arab world. Energy efficiency further helps Arab states meet their SDGs on combating climate change and its impacts (SDG13), as it cuts down on GHG emissions resulting from excessive and inefficient consumption of energy. Energy efficiency improvements can save governments, companies, and citizens billions of dollars in the Arab region from reduced energy bills, while at the same time quickly reducing carbon footprints – a win-win solution. Many countries in the region are now moving ahead with … Continue reading

Energy Sector in Arab Countries

The Arab energy sector has played and will continue to play an important role in the regional as well as global economy. In addition to satisfying energy needs for economic and social development, it is the source of oil and gas export revenues contributing to economic development. The Arab oil and gas sector represents the largest economic sector in the region. Increase of oil revenues were the main drivers for economic development in most of the Arab oil producing countries. The Arab economies, as well, are heavily dependent on oil and gas to meet their domestic energy demand. Oil contributes … Continue reading

Climate Change Mitigation in Tunisia: Challenges and Progress

Climate change has become a reality in Tunisia, which is struggling to cope with the problems of desertification, water scarcity and the degradation of natural resources. Despite its limited carbon footprint, the risks of climate change may be high. The fourth Arab country to have published its Intended Nationally Determined Contributions (INDC) for a reduction in greenhouse gas emissions, Tunisia has put climate change on the top of its political and economic agenda. It is also the first country in the region to include in its new Constitution recognition of climate change: “A sound and balanced environment while contributing to … Continue reading

Role of CSP in South Africa’s Power Sector

Demand for electricity in South Africa has increased progressively over several years and the grid now faces supply and demand challenges. As a result, the Department of Energy has implemented a new Integrated Resource Plan to enhance renewable energy generation capacity and promote energy efficiency. Solar photovoltaic (PV) and concentrated solar power (CSP) are set to be the main beneficiaries from the new plan having their initial allocation raised considerably. Daily power demand in South Africa has a morning and evening peak, both in summer and winter. This characteristic makes CSP with storage a very attractive technology for generating electricity … Continue reading

Smart Grid – Key to Managing Energy Demand in Saudi Arabia

Electricity consumption in the Kingdom of Saudi Arabia has been climbing steadily for the past few decades. Saudi electricity market is growing at an accelerating rate due to higher consumption rates in the private, commercial and industrial sectors. Current domestic energy consuming behaviors pose inescapable fatal consequences that affect both the Kingdom’s production and export levels. Therefore, an urgent action is needed to curb the increasing electricity demand and promote energy conservation in the country. Smart grid is a dynamic solution which can bridge the gap between the current supply and increasing demand in Saudi Arabia. What is Smart Grid? A … Continue reading

Combined Heat and Power Systems

Combined Heat and Power (CHP), or Cogeneration, is the sequential or simultaneous generation of multiple forms of useful energy (usually mechanical and thermal) in a single, integrated system. In conventional electricity generation systems, about 35% of the energy potential contained in the fuel is converted on average into electricity, whilst the rest is lost as waste heat. CHP systems uses both electricity and heat and therefore can achieve an efficiency of up to 90%, giving energy savings between 15-40% when compared with the separate production of electricity from conventional power stations and of heat from boilers. CHP systems consist of … Continue reading

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