Guy El Khoury
Despite the increasing global interest in renewable energy sources, electricity generation remains largely dependent on fossil fuels with approximately 70% of the world’s electricity currently being generated using coal, natural gas, and petroleum products. Coal, the most carbon intensive of the fossil fuels, accounts for the largest share of electricity generated globally, with 40% of all electricity generated.
Such reliance on fossil fuels is coupled with a relatively low conversion efficiency from fossil fuels to electricity, which averages 35%. The remaining 65% of the energy contained in fuels used is in effect wasted, lost as heat in power plant turbines and generators.
In this context, it is not surprising to learn that electricity generation stands as the top contributor to global Carbon emissions. According to the International Energy Agency (IEA), electricity generation currently accounts for approximately 50% of global carbon emissions.
In the Middle East and North Africa region, electricity and heat production are responsible for 41% of total carbon emissions according to IEA data from 2009. And while not representing a consumption sector, electricity generation ranked well higher than any individual sector, including transportation, which comes second and accounts for 25% of the region’s total carbon emissions. Yet carbon emissions from electricity generation is not equal across the region. In fact, the top 5 contributors to carbon emissions from electricity generation – namely Saudi Arabia, Egypt, the UAE, Kuwait, and Iraq – together represent 70% of the region’s electricity generation carbon emissions, according to 2009 data by the IEA, a share that represents approximately 30% of the region’s total carbon emissions.
Continue reading Carbon Footprint of Electricity in the Middle East
In celebrating this year’s World Green Building Week, Carboun has released a visual guide to energy use in buildings with the goal of explaining the overall state of energy use in the region and the significance of buildings as a major sector in energy consumption. It also aims to comparatively explain the nuances of the major trends of energy use in buildings as a baseline analysis for further research. The visual guide, which was researched and designed by Karim Elgendy with additional contributions from a small research team, was based on raw data obtained from the International Energy Agency and the World Bank. Copyrights for all infographics are reserved for Carboun. No reproduction or republishing of any infographic or part thereof is permitted without prior written consent from the author.
Continue reading A Visual Guide to Energy Use in Buildings in the Middle East
Following on Carboun’s recent article discussing the two trends of energy and carbon emissions in the Arab World. Carboun has recently released a visual guide to energy and emissions with the goal of explaining the fundamentals of energy use in the region and how it relates to carbon emissions, economic development, climate change, and renewable energy. The guide, which was researched and designed by Karim Elgendy, was based on raw data provided by the World Bank and the World Resources Institute. It aims to explain the regional trends in local details but within the global context. Copyrights for all infographics are reserved for Carboun. No reproduction or republishing of any infographic or part thereof without prior written consent from Carboun.
Continue reading A Visual Guide to Energy and Emissions in the Middle East
Discussions on the environment in the Arab World have traditionally been limited to the negative impact of region’s fossil fuel exports on climate change. In recents years, a more regional discourse has emerged that also addressed the region’s water scarcity, rapid urbanization, environmental degradation, and the expected impact of global climate change and sea level rise on its most vulnerable regions.
Map showing emissions in countries of the arab world as percentage of global emissions. Copyrights: Carboun
However, such discussions often overlooked the region’s own energy and ecological footprints and the impact of its own energy use on climate change. In the past , such disregard may have been justified by the fact that the region had not yet experienced the kind of economic development and prevalent consumerism that was common in most of the developed world. Such justification was supported by the region’s historically low rate of energy use and carbon emissions. In fact, the Arab world which constitutes 5% of the world’s population, emits just under 5% of global carbon emissions according to World Bank data, and except for Saudi Arabia, no single Arab country is responsible for more than 1% of global emissions. The energy use of an average Arab person is still below the world average and less than half that of an average european.
Continue reading Two Trends of Energy and Carbon Emissions in the Arab World
Image 1. A night view of the design showing the shading envelope and the spiraling forms behind. Copyrights: Perkins+Will
In February 2010, the design for Al-Birr Foundation Headquarters in Riyadh, Saudi Arabia, has been named as the winner of the 2010 Architectural Review / MIPIM Future Projects Awards under the ‘tall buildings’ category (Image 1). The unbuilt project, designed by Perkins+Will’s New York Office, was commissioned for Al-Birr Foundation, a non-profit organization aimed at alleviating poverty and caring for disadvantaged families and children.
Of the many features of the design of the 59, 000 sqm tower, perhaps the most interesting is how it was concieved as a sustainable urban tower that responds to the environmental characteristics and the microclimate of the city of Riyadh, which is a challenging climate to address given the extreme solar exposure and the heat conditions of Riyadh.
Faced with these climatic conditions and a deep plot of 1000 x 1200m, the projects’s designers response was to rethink the high rise typology in this context. The design’s most visible response to the climate is the building’s envelope which was designed as a large rectangular frame of brise-soleil enclosing the occupied parts of the building. This shading frame was designed to respond to both the different amounts of solar radiation received by each elevation as well as the interior spaces behind it. To achieve this result, a mapped shading mesh was devised to provide varying levels of openness for different locations of the different elevations depending on its solar exposure and its spatial/contextual influences. The result was an envelope that resembles a mesh of varying densities surrounding the building and simultaneously protecting and revealing the activities behind it.
This proposed design solution thus helps the building reduce its solar heat gain while maintaining its views towards the city (FIgure 1). In addition to this shading effect, the mesh-like dynamic treatment of the envelope has also helped animate the building’s expression with the dense and sparse zones of the facade adding a dynamic effect to what otherwise may have become a static pure form.
Continue reading Riyadh Tower Design adapts a Traditional Middle Eastern Shading Strategy