scholarly journals Corrigendum to “Batteries, compressed air, flywheels, or pumped hydro? Exploring public attitudes towards grid-scale energy storage technologies in Canada and the United Kingdom” [Energy Res. Soc. Sci. 80 (2021) 102228]

2022 ◽  
Vol 86 ◽  
pp. 102460
Christopher R. Jones ◽  
Peter Hilpert ◽  
James Gaede ◽  
Ian H. Rowlands
Mary E. Clayton ◽  
Ashlynn S. Stillwell ◽  
Michael E. Webber

With a push toward renewable electricity generation, wind power has grown substantially in recent U.S. history and technologies continue to improve. However, the intermittency associated with wind-generated electricity without storage has limited the amounts sold on the grid. Furthermore, continental wind farms have a diurnal and seasonal variability that is mismatched with demand. To increase the broader use of wind power technologies, the development of systems that can operate intermittently during off-peak hours must be considered. Utilization of wind-generated electricity for desalination of brackish groundwater presents opportunities to increase use of a low-carbon energy source and supply alternative drinking water that is much needed in some areas. As existing water supplies dwindle and population grows, cities are looking for new water sources. Desalination of brackish groundwater provides one potential water source for inland cities. However, this process is energy-intensive, and therefore potentially incongruous with goals of reducing carbon emissions. Desalination using reverse osmosis is a high-value process that does not require continuous operation and therefore could utilize variable wind power. That is, performing desalination in an intermittent way to match wind supply can help mitigate the challenges of integrating wind into the grid while transforming a low-value product (brackish water and intermittent power) into a high-value product (treated drinking water). This option represents a potentially more economic form of mitigating wind variability than current electricity storage technologies. Also, clean energy and carbon policies under consideration by the U.S. Congress could help make this integration more economically feasible due to incentives for low-carbon energy sources. West Texas is well-suited for desalination of brackish groundwater using wind power, as both resources are abundant and co-located. Utility-scale wind resource potential is found in most of the region. Additionally, brackish groundwater is found at depths less than 150 m, making west Texas a useful geographic testbed to analyze for this work, with applicability for areas with similar climates and water supply scarcity. Implementation of a wind-powered desalination project requires both economic and geographic feasibility. Capital and operating cost data for wind turbines and desalination membranes were used to perform a thermoeconomic analysis to determine the economic feasibility. The availability of wind and brackish groundwater resources were modeled using geographic information systems tools to illustrate areas where implementation of a wind-powered desalination project is economically feasible. Areas with major populations were analyzed further in the context of existing and alternative water supplies. Utilization of wind-generated electricity for desalination presents a feasible alternative to energy storage methods. Efficiency, economics, and ease of development and operation of off-peak water treatment were compared to different energy storage technologies: pumped hydro, batteries, and compressed air energy storage. Further economics of compressed air energy storage and brackish groundwater desalination were examined with a levelized lifetime cost approach. Implementation of water desalination projects using wind-generated electricity might become essential in communities with wind and brackish groundwater resources that are facing water quality and quantity issues and as desires to implement low carbon energy sources increase. This analysis assesses the economic and geographic feasibility and tradeoffs of such projects for areas in Texas.

2021 ◽  
Vol 7 (4) ◽  
pp. 51
Ibrahim Nabil ◽  
Mohamed Mohamed Khairat Dawood ◽  
Tamer Nabil

2020 ◽  
Vol 14 (13) ◽  
pp. 2510-2519 ◽  
Mohammad Amin Mirzaei ◽  
Morteza Zare Oskouei ◽  
Behnam Mohammadi-Ivatloo ◽  
Abdolah Loni ◽  
Kazem Zare ◽  

2020 ◽  
Firdovsi Gasanzade ◽  
Sebastian Bauer ◽  
Wolf Tilmann Pfeiffer

<p>Energy transition from conventional to renewable energy sources requires large energy storage capacities to balance energy demand and production, due to the fluctuating weather-dependent nature of renewable energy sources like wind or solar power. Subsurface energy storage in porous media may provide the required large storage capacities. Available storage technologies include gas storage of hydrogen, synthetic methane or compressed air. Determination of the spatial dimensions of potential geological storage structures is required, in order to estimate the achievable local storage potential. This study, therefore, investigates the energy storage potential for the three storage technologies using a part of the North German Basin as study region.</p><p>For this study, a geological model of the geological subsurface, including the main storage and cap rock horizons present, was constructed and consistently parameterized using available data from the field site. Using spill point analysis potential trap closures were identified, also considering existing fault systems and salt structures for volumetric assessment. Volumetric assessment was performed for each storage site for methane, hydrogen and compressed air, as storage gases and their gas in place volumes were calculated. The effects of uncertainty of the geological parameters were quantified accounting for porosity, permeability and the maximum gas saturation using regional petrophysical models. The total regional energy storage capacity potential was estimated for methane and hydrogen, based on their lower heating values, while an exergy analysis of methane, hydrogen and compressed air was used to compare all available storage technologies. In addition to the storage capacity, also deliverability performance under pseudo-steady state flow condition was estimated for all sites and storage gases.</p><p>The results show significant gas in place volumes of about 2350 bcm for methane, 2080 bcm for hydrogen and 2100 bcm for compressed air as a regional gas storage capacity. This capacity is distributed within three storage formations and a total of 74 potential trap structures. Storage sites are distributed rather evenly over depth, with shallow sites at about 400 - 500 m and deep sites reaching depths of about 4000 m. The exergy analysis shows that hydrogen and methane storage technologies have high exergy values of about 15.9 kWh and 8.5 kWh per m<sup>³</sup>, due to the high chemical part of the exergy, while for compressed air energy storage only the physical part is used during storage and the corresponding value is thus reduced to 6.1 kWh. The total energy storage capacity thus identified of about 32000 TWh of methane and 8400 TWh of hydrogen, with a low estimate of 23000 TWh and 6100 TWh accounting for uncertainty of geological parameters. Thus, the potential is much larger than predicted required capacities, showing that the subsurface storage technologies have a significant potential to mitigate offsets between energy demand and renewable production in a sustainable and renewable future energy system.</p>

2012 ◽  
Vol 49 ◽  
pp. 105-113 ◽  
Charles B.A. Musselwhite ◽  
Erel Avineri ◽  
Yusak O. Susilo ◽  
Darren Bhattachary

2013 ◽  
Vol 13 (1) ◽  
pp. 69-88 ◽  
Aya Abe ◽  
Christina Pantazis

Establishing what constitutes ‘need’ has been a long-standing tradition in empirical investigations of poverty. In their pioneering Poor Britain study, Joanna Mack and Stewart Lansley (1985) developed the ‘consensual’ or ‘socially perceived deprivation’ approach. This sought the views of ordinary people (as opposed to academics or professional experts) in determining the necessities of life. Their approach subsequently provided the basis for further UK poverty surveys, as well as studies in other counties in Europe, Australasia, Africa and Asia. Despite this international proliferation, comparative analyses examining public perceptions of need across different societies and cultures remain sparse. This article presents findings from the first Japanese–UK comparative study based on nationally representative surveys informed by Mack and Lansley's approach. It compares the necessities of life in the two societies, examining differences as well as common socially perceived needs, and explores two possible explanations accounting for the variations found. In doing this, the article seeks to contribute to international debates on public attitudes towards the necessities of life.

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