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This paper provides a comprehensive review on the status of renewable energy developments and hydrogen economy in the Middle East and North Africa region. This region is heavily reliant on fossil fuels for its domestic energy supply and is also considered a global energy exporter. In this regard, an overview of the current state of energy sector in the region is provided. Moreover, the region possesses great potential for renewable energy exploitation due to its climatic advantages. Therefore, the current status of renewable energy utilization within the region's various countries is reviewed by presenting several operational renewable energy-based plants and future projects for deployment of renewable power in the region. Green hydrogen is an important sustainable clean fuel, and its utilization is essential for both environmental preservation and energy security. Thus, the status of hydrogen production and utilization in the region is discussed considering the various operational systems and future hydrogen generation projects. The concept of source, system and service is also incorporated which considers the utilization of clean energy sources for sustainable hydrogen production through environmentally benign pathways. The potential deployment opportunities for the renewable hydrogen production are also discussed based on available renewable sources in the region. Moreover, this paper discusses the challenges of increasing renewable energy utilization in the region. Furthermore, this paper provides a road map for achieving renewable hydrogen economy including a reduction in domestic utilization of oil and gas sources, subsidization of renewable production sector, and financial support to hydrogen production and transportation infrastructure. • Providing an overview of the status of energy sector in the region. • Providing an overview of the status of renewable energy utilization in the region. • Discussing the challenges and opportunities of renewable and hydrogen energy development in the region. • Providing a road map for renewable hydrogen development in the region. [ABSTRACT FROM AUTHOR]

Abstract: Energy is an important input for national socio-economic development. The current trends of energy supply and demand are not sustainable because of the expected huge gap between demand and supply in the future. The fossil fuels resources are limited and use of these fuels has a negative impact in the environment. Holding energy at a secure level and global climate at a safe level require integration of renewable energy technologies (RETs) in the energy supply-mix. Development of RETs in a country depends on its renewable energy readiness (RE-Readiness) that indicates the gaps and strengths of their development. In light of the various initiatives proposed to turn North Africa into a renewable energy producer and extend its electricity supply to its neighboring European counties, it demands to assess the RE-Readiness. The main object of this paper is to develop and disseminate an assessment framework to find North African countries RE-Readiness for deployment of RETs. This framework is adopted in which the paper applies a consistent methodology across all the North African countries׳ to assess the present state of infrastructure, institutions and human capital factors to adopt and deploy RETs. Each of the factors is assigned a weight and a score between 1 and 7, with 1 being the lowest and 7 the highest score. From this developed assessment framework, it is found Morocco received the highest RE-Readiness score means that the country is more ready to invest in RETs than the other countries in North Africa. This assessment identifies the gaps and strengths for the deployment of RETs in these countries and serves as a first step towards proposing renewable energy diffusion strategies that will contribute to their environmental, social and economic development. [Copyright &y& Elsevier]

Abstract: Middle East and North Africa (MENA) countries present abundant solar potential, which to some extent has been exploited for electricity production. However, the largest part of this potential remains still unexploited. The scope of this paper is to present the best practices in exploiting solar energy in selected MENA countries. First the general structure of energy market related to Renewable Energy Sources (RES) for each analyzed country is presented. Then the exploitation of solar energy via PVs with special focus to the achievements in rural electrification, which could be used as a paradigm for other countries with similar problems, is displayed. MENA countries are promising for the wide application of concentrating solar plants (CSP), as recent research has shown, and some interesting applications in this area, also presented in this paper, have started being implemented. [Copyright &y& Elsevier]

This article highlights a method for natural heating and cooling of systems in areas of moderate climate. Movement of air is generated in the system by an underground piping system. In this paper, we discuss a feasibility study in Algeria of air-conditioning using a ground source heat pump (GSHP) with vertical mounting, coupled with a solar collector. This study consists of modeling ground temperature at different depths, for a clay soil in the city of Tlemcen. Our model is developed from the non-stationary heat equation for a homogeneous medium and takes into consideration the soil thermal diffusivity. It uses the daily ambient temperature during a typical year for the locality of Tlemcen. The study shows the feasibility of using a heating/cooling GSHP in the town of Tlemcen for the particular soil type, and indicates that the duration of air flow in the borehole has a major influence on the outgoing temperature drilling. [ABSTRACT FROM AUTHOR]

Abstract: Climate protection targets for mid-century imply a need to scale up European renewable power production to a level that may exceed the available land area within Europe''s borders. One attractive solution, from a cost and feasibility perspective, is the development of large-scale concentrating solar power plants in North Africa and the Middle East. However, these developments are seen by many people as risky, in terms of both European energy security, and in terms of the risks faced by project developers. In this paper, we focus on the latter of theses issues. First, we examine the risks that project developers are most concerned about, and identify these as being associated not with terrorism and rogue state behavior, but rather with corruption and inefficient and unpredictable bureaucracies. Second, we identify a range of policy approaches that can reduce these risks, either by mitigating their consequences, or by seeking to eliminate their underlying causes. Third, we investigate the financial benefits of taking such steps to reduce or eliminate investment risks. We find the potential savings to European electricity consumers to exceed €200 billion. [Copyright &y& Elsevier]