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

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

Can Bitcoin Go Green One Day?

Many people who love to live off-grid or practice being self sufficient love the premise of cryptocurrency. It is perfectly aligned with the ethos of those who wish to unplug from the mainstream and do things their own way. Since cryptocurrency is decentralized and has no governing authority it seems like it should be a perfect fit for these types of people. Unfortunately there is one glaring area which makes bitcoin and other cryptocurrency an anathema to those off-grid lifestylers. The mining of cryptocurrency is a huge user of energy which relies mainly on fossil fuels. In fact, the output … Continue reading

How to Make an Environmentally-Conscious Person

The public discourse on industrial pollution, climate change, global warming and sustainable development has made environmental protection a top priority for one and all.  Concerted efforts are underway from governments, businesses and individuals to make Earth a clean and green planet.  When it comes to sustainability, everyone has a role to play. We can contribute to the global environmental movement by adopting changes that are within easy reach. Here are some tips to prove that you are an environmentally-conscious person: 1. Use Solar Power Solar power is the most popular form of alternative energy. Worldwide, millions of businesses and households are … Continue reading

Unleashing Solar Power in Saudi Arabia

Saudi Arabia is the largest consumer of petroleum in the Middle East, with domestic consumption reaching 4 million barrels per day in 2012 out of daily production of 10 million barrels. Saudi Arabia’s primary energy consumption per capita is four times higher than the world average. Strong industrial growth, subsidized oil prices, increasing energy demand for electricity and transportation is leading to a growing clamor for oil in the country. The total energy consumption in the Kingdom is rapidly rising at an average rate of about 6 percent per annum. Solar Energy Prospects in KSA To meet the rising local … Continue reading

District Cooling in the Middle East: Potential and Challenges

District cooling produces chilled water in a centralized location for distribution to buildings like offices and factories through a network of insulated underground pipes. The chilled water travels to different buildings, where the water circulates through refrigeration coils or uses absorption technology to enter the air-conditioning system. During winter, the source for the cooling can often be seawater, so it is a cheaper resource than using electricity to run compressors for cooling. What is District Cooling District cooling provides effective control over internal temperature of a building, requires less maintenance than a standalone air-conditioning system, consumes lesser space and reduces … Continue reading

Solar Energy Prospects in Tunisia

Tunisia is an energy-dependent country with modest oil and gas reserves. Around 97 percent of the total energy is produced by natural gas and oil, while renewables contribute merely 3% of the energy mix. The installed electricity capacity at the end of 2015 was 5,695 MW which is expected to sharply increase to 7,500 MW by 2021 to meet the rising power demands of the industrial and domestic sectors. Needless to say, Tunisia is building additional conventional power plants and developing its solar and wind capacities to sustain economic development. Wind Energy in Tunisia Wind power represents the main source of renewable energy in … Continue reading

Waste-to-Energy Pathways

Waste-to-energy is the use of modern combustion and biological technologies to recover energy from urban wastes. The conversion of waste material to energy can proceed along three major pathways – thermochemical, biochemical and physicochemical. Thermochemical conversion, characterized by higher temperature and conversion rates, is best suited for lower moisture feedstock and is generally less selective for products. On the other hand, biochemical technologies are more suitable for wet wastes which are rich in organic matter. 1. Thermochemical Conversion of Waste The three principal methods of thermochemical conversion of MSW are combustion (in excess air), gasification (in reduced air), and pyrolysis (in … Continue reading

Zero Emissions Day: Our Planet is Counting on Us

The Zero Emissions Day (or ‘Ze Day’) aims to put the Global 24 hour Moratorium on the Combustion of Fossil Fuels. The day started on March 21, 2008 with the launch of a website calling for “A Global Moratorium on Fossil Fuel Combustion on September 21” in Halifax, Nova Scotia, Canada. The message, “Giving our planet one day off a year”, was simple yet profound and was translated into 12 languages for easy reach of people. The idea behind is of giving everything a ‘rest day’ so why not for emissions and environment. The notion behind the Zero Emissions Day is … Continue reading

Why Colleges Should Go for Online Education to Save the Environment

Climate change has been established as an actual, factual event that is changing everyone’s lives, and not for the better. Polar caps are melting, the temperature of the entire Earth is rising, and our oceans are filling with garbage. People across the world are responding in different ways, including reusing products and recycling others, but what about colleges and universities? What can they do to help the environment? There are several ways that colleges can make a positive impact on the environment, but one of the best ways is to move towards online education. Here’s why: It Reduces Electrical Use … Continue reading