Assessing the physical potential capacity of direct air capture with integrated supply of low‐carbon energy sources

2021 ◽  
Author(s):  
Steffen Fahr ◽  
Julian Powell ◽  
Alice Favero ◽  
Anthony J. Giarrusso ◽  
Ryan P. Lively ◽  
...  
Keyword(s):  
Energy Sources ◽  
Low Carbon ◽  
Direct Air Capture ◽  
Potential Capacity ◽  
Air Capture ◽  
Low Carbon Energy

Implementation of Brackish Groundwater Desalination Using Wind-Generated Electricity as a Proxy for Energy Storage: A Case Study of the Energy-Water Nexus in Texas

2011 ◽  
Author(s):  
Mary E. Clayton ◽  
Ashlynn S. Stillwell ◽  
Michael E. Webber
Keyword(s):  
Drinking Water ◽  
Energy Storage ◽  
Wind Power ◽  
Groundwater Resources ◽  
Compressed Air ◽  
Energy Sources ◽  
Low Carbon ◽  
West Texas ◽  
Storage Technologies ◽  
Low Carbon Energy

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.

Energy efficiency a source of low carbon energy sources? Evidence from 16 high-income OECD economies

Energy ◽  
2022 ◽  
pp. 123063
Author(s):  
Taimoor Hassan ◽  
Huaming Song ◽  
Yasir Khan ◽  
Dervis Kirikkaleli
Keyword(s):  
Energy Efficiency ◽  
High Income ◽  
Energy Sources ◽  
Low Carbon ◽  
Low Carbon Energy

Does air pollution affect clean production of sustainable environmental agenda through low carbon energy financing? evidence from ASEAN countries

2021 ◽  
pp. 0958305X2110078
Author(s):  
Muhammad K Anser ◽  
Muhammad Usman ◽  
Danish I Godil ◽  
Malik S Shabbir ◽  
Mosab Tabash ◽  
...  
Keyword(s):  
Air Pollution ◽  
Energy Efficiency ◽  
Energy Sources ◽  
South East Asia ◽  
Low Carbon ◽  
Productivity Level ◽  
Clean Production ◽  
Sustainable Environment ◽  
Asean Countries ◽  
Low Carbon Energy

This study describes different options regarding financing in low carbon energy sectors and air pollution, which further affect clean production and sustainable environment agenda regarding the Association of southeast Asian Nations (ASEAN) states. The purpose of this study is to reduce air pollution and improve environmental production through low carbon energy financing. This study further investigates, which particular country among selected ASEAN states has most affected by air pollution and decrease their energy sources as well as clean productivity level. The findings of this study indicate that transformation toward low carbon energy increased energy efficiency encouraged by all sectors of society in the target countries. It is observed that around 20,000 people have died in South East Asia (SEA) every year due to the polluted air environment among these countries.

scholarly journals A policy roadmap for negative emissions using direct air capture

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jonas Meckling ◽  
Eric Biber
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Political Support ◽  
Low Carbon ◽  
Niche Markets ◽  
Gas Industry ◽  
Direct Air Capture ◽  
Negative Emissions ◽  
Air Capture ◽  
Technology Transitions

AbstractNegative emission strategies are central to avoiding catastrophic climate change. Engineered solutions such as direct air capture are far from cost-competitive. As past low-carbon technology transitions suggest, this calls for policy and political strategies beyond carbon pricing. We adopt a policy sequencing perspective that identifies policies that could create niche markets, building political support for later widespread deployment of direct air capture. Climate leaders could pursue an “incentives + mandates” policy strategy targeted at the oil and gas industry. These early moves could create global spillovers for follower countries by reducing technology cost and facilitating knowledge transfer through global firms.

scholarly journals How (Carbon) Negative Is Direct Air Capture? Life Cycle Assessment of an Industrial Temperature-Vacuum Swing Adsorption Process

2020 ◽  
Author(s):  
Sarah Deutz ◽  
André Bardow
Keyword(s):  
Energy Source ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Large Scale ◽  
Low Carbon ◽  
Direct Air Capture ◽  
Trade Offs ◽  
Negative Emissions ◽  
Air Capture

Current climate targets require negative emissions. Direct air capture (DAC) is a promising negative emission technology, but energy and materials demands lead to trade-offs with indirect emissions and other environmental impacts. Here, we show by Life Cycle Assessment (LCA) that the first commercial DAC plants in Hinwil and Hellisheiði can achieve negative emissions already today with carbon capture efficiencies of 85.4 % and 93.1 %. Climate benefits of DAC, however, depend strongly on the energy source. When using low-carbon energy, as in Hellisheiði, adsorbent choice and plant construction become important with up to 45 and 15 gCO<sub>2e</sub> per kg CO<sub>2</sub> captured, respectively. Large-scale deployment of DAC for<br>1 % of the global annual CO<sub>2</sub> emissions would not be limited by material and energy availability. Other environmental impacts would increase by less than 0.057 %. Energy source and efficiency are essential for DAC to enable both negative emissions and low-carbon fuels.<br>

Cost Analysis of Direct Air Capture and Sequestration Coupled to Low-Carbon Thermal Energy in the United States

2020 ◽  
Vol 54 (12) ◽  
pp. 7542-7551
Author(s):  
Noah McQueen ◽  
Peter Psarras ◽  
Hélène Pilorgé ◽  
Simona Liguori ◽  
Jiajun He ◽  
...  
Keyword(s):  
United States ◽  
Cost Analysis ◽  
Thermal Energy ◽  
The United States ◽  
Low Carbon ◽  
Direct Air Capture ◽  
Air Capture
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