Is Renewable Energy-Powered Desalination a Viable Solution for Water Stressed Regions? A Case Study in Algarve, Portugal

Azinheira, Gil; Segurado, Raquel; Costa, Mário

doi:10.3390/en12244651

Cited by 18 publications

(3 citation statements)

References 15 publications

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“…Green hydrogen could currently be produced in parts of the Middle East, Africa, Russia, the United States, and Australia. The lowest cost is most easily attained in areas with access to low-cost renewable energy plants" [24]. "However, production costs will fall over time as a result of continuously falling renewable energy production costs, economies of scale, experience gained from ongoing projects, and technological advancements.…”

Section: Hydrogen Economymentioning

confidence: 99%

Green Hydrogen as a Potential Solution for Reducing Carbon Emissions: A Review

Elshafei¹,

Mansour²

2023

JENRR

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Hydrogen is one of the types of energy discovered in recent decades, which is based on the electrolysis of water in order to separate hydrogen from oxygen. These include grey hydrogen, black hydrogen, blue hydrogen, yellow hydrogen, turquoise hydrogen, and green hydrogen. Generally, hydrogen can be extracted from a variety of sources, including fossil fuels and biomass, water, or a combination of the two. Green hydrogen has the potential to be a critical enabler of the global transition to sustainable energy and zero-emissions economies. Worldwide, there is unprecedented momentum to realize hydrogen's long-standing potential as a clean energy solution. Green hydrogen is a carbon-free fuel and the source of its production is water, and the production processes witness the separation of its molecules from its oxygen counterpart in the water by electricity generated from renewable energy sources such as wind and solar energy. Green hydrogen is one of the most important sources of clean energy, which may be why it is called green hydrogen. It is a clean source of energy, and its generation is based on renewable energy sources, so no carbon gases are released during its production. Green hydrogen produced by water electrolysis becomes a promising and tangible solution for the storage of excess energy for power generation and grid balancing, as well as the production of decarbonized fuel for transportation, heating, and other applications, as we shift away from fossil fuels and toward renewable energies. Green hydrogen is being produced in countries all over the world because it is one of the solutions to reducing carbon emissions, and it is clean, environmentally friendly energy that is derived from clean renewable energy. However, due to the combination of renewable generation and low-carbon fuels, projects for the production of green hydrogen are very expensive. The goal of this review is to highlight the various types of hydrogen, with a focus on the more practical green hydrogen.

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Section: Hydrogen Economymentioning

confidence: 99%

Green Hydrogen as a Potential Solution for Reducing Carbon Emissions: A Review

Elshafei¹,

Mansour²

2023

JENRR

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“…The projects in the literature provide adequate information for the capacity versus capital investment; therefore, the plants will be similar to the ones that already exist or have been studied. The projects will have the following costs and daily production capacities: MED-CSP 40,000 m 3 /day with a cost of 54.3 million USD [70], RO-PV 40,000 m 3 /day with a cost 47.16 million USD [71] and RO-Wind 40,000 m 3 /day with a cost of 60.92 million USD [72]. The plants will be evenly distributed worldwide based on the utilized renewable energy, as 50% of plants will be powered by solar energy and 50% will be powered by wind energy as follows: 25% MED-CSP, 25% RO-PV and 50% RO-Wind.…”

Section: Vslr M 3 /Day =mentioning

confidence: 99%

Sea Level Rise Mitigation by Global Sea Water Desalination Using Renewable-Energy-Powered Plants

et al. 2021

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This work suggests a solution for preventing/eliminating the predicted Sea Level Rise (SLR) by seawater desalination and storage through a large number of desalination plants distributed worldwide; it also comprises that the desalinated seawater can resolve the global water scarcity by complete coverage for global water demand. Sea level rise can be prevented by desalinating the additional water accumulated into oceans annually for human consumption, while the excess amount of water can be stored in dams and lakes. It is predicted that SLR can be prevented by desalination plants. The chosen desalination plants for the study were Multi-Effect Desalination (MED) and Reverse Osmosis (RO) plants that are powered by renewable energy using wind and solar technologies. It is observed that the two main goals of the study are fulfilled when preventing an SLR between 1.0 m and 1.3 m by 2100 through seawater desalination, as the amount of desalinated water within that range can cover the global water demand while being economically viable.

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“…The majority of solar desalination systems decouple electricity and water production and support decentralization (Azinheira et al, 2019;Gude & Fthenakis, 2020).…”

Section: Introductionmentioning

confidence: 99%

Techno-environmental Simulations for Solar Energy-Powered Seawater Reverse Osmosis Desalination for a Hyper Arid Coastal Region

Aldei¹,

Al-Shayji

Aleisa

2022

JER is an international, peer-reviewed journal that publishes f

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This study investigates the efficiency of a solar-powered seawater desalination plant (DP) using reverse osmosis for an arid coastal region. The solar models are investigated using local meteorological data, including direct, diffused and global irradiance. The meteorological data are obtained using local typical meteorological data set collected from a ground weather station. The PVsyst simulation tool is used to model a grid-connected solar PV system utilizing three photovoltaic (PV) technologies: thin-film, monocrystalline, and polycrystalline. Three scenarios were considered: restricted area, daily water production and design capacity. The optimum configuration for the restricted area scenario at the seawater DP location considered is an on-grid thin-film module (170 W) with a tilt angle of 20° and an inverter unit of 2000 kW. The solution module area is 15,248 m2. The annual electricity production will be approximately 4251.1 MWh/y, which represents only 3.1% of the DP demand. Thin-films produce higher annual electricity than monocrystalline and polycrystalline silicon by 8.3% and 5.9%, respectively, but require 15.9% and 5.7% more space than monocrystalline and polycrystalline silicon, respectively. For Shuwaikh DP, a 30 MIGD DP will require a PV system with a capacity of 120 MWp at 30° tilt angles and 60 inverters. The design environmental impact was assessed using life cycle assessment (LCA). The carbon footprint will decrease from 7.3 x10-5 to 1.8 x10-5 (kg CO2 equivalent), for the 30 MIGD production. The fossil fuel depletion will decrease by approximately 80%. However, the large number of solar panels and the significant total ground area required for the 30 MIGD. The solar array of 1,531,054 m2 will adversely affect the urban land occupation impact category by 84% and will increase metal depletion by 37%.The response surface optimization indicates that the optimal performance in the coastal region for power desalination plants is achieved when using a thin-film at a tilt angle of 20 o.

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Is Renewable Energy-Powered Desalination a Viable Solution for Water Stressed Regions? A Case Study in Algarve, Portugal

Cited by 18 publications

References 15 publications

Green Hydrogen as a Potential Solution for Reducing Carbon Emissions: A Review

Green Hydrogen as a Potential Solution for Reducing Carbon Emissions: A Review

Sea Level Rise Mitigation by Global Sea Water Desalination Using Renewable-Energy-Powered Plants

Techno-environmental Simulations for Solar Energy-Powered Seawater Reverse Osmosis Desalination for a Hyper Arid Coastal Region

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