scholarly journals Ground Level Integrated Diverse Energy Storage (GLIDES) Cost Analysis

2018 ◽  
Author(s):  
Saiid Kassaee ◽  
Adewale Odukomaiya ◽  
Ahmad Abu-Heiba ◽  
Xiaobing Liu ◽  
Matthew M. Mench ◽  
...  

With the increasing penetration of renewable energy, the need for advanced flexible/scalable energy storage technologies with high round-trip efficiency (RTE) and high energy density has become critical. In this paper, a techno-economic model of a novel energy storage technology developed by the Oak Ridge National Laboratory (ORNL) is presented and used to estimate the technology’s capital cost. Ground-Level Integrated Diverse Energy Storage (GLIDES) is an energy storage technology with high efficiency which can store energy via input of electricity and heat and supply dispatchable electricity. GLIDES stores energy by compressing and expanding a gas using a liquid piston. GLIDES performance has been extensively studied analytically and experimentally. This study aims to develop a comprehensive combined performance and cost modeling environment. With the desired system storage capacity kilowattage, storage time (hours), and an initial RTE guess as inputs, the model optimizes the selection of system components to minimize the capital cost. The techno-economic model described in this paper can provide preliminary cost estimates and corresponding performance for various system sizes and storage times.

Author(s):  
Yang Chen ◽  
Ahmad Abu-Heiba ◽  
Saiid Kassaee ◽  
Chenang Liu ◽  
Guodong Liu ◽  
...  

Abstract In the U.S., building sector is responsible for around 40% of total energy consumption and contributes about 40% of carbon emissions since 2012. Within the past several years, various optimization models and control strategies have been studied to improve buildings energy efficiency and reduce operational expenses under the constraints of satisfying occupants’ comfort requirements. However, the majority of these studies consider building electricity demand and thermal load being satisfied by unidirectional electricity flow from the power grid or on-site renewable energy generation to electrical and thermal home appliances. Opportunities for leveraging low grade heat for electricity have largely been overlooked due to impracticality at small scale. In 2016, a modular pumped hydro storage technology was invented in Oak Ridge National Laboratory, named Ground Level Integrated Diverse Energy Storage (GLIDES). In GLIDES, employing high efficiency hydraulic machinery instead of gas compressor/turbine, liquid is pumped to compress gas inside high-pressure vessel creating head on ground-level. This unique design eliminates the geographical limitation associated with existing state of the art energy storage technologies. It is easy to be scaled for building level, community level and grid level applications. Using this novel hydro-pneumatic storage technology, opportunities for leveraging low-grade heat in building can be economical. In this research, the potential of utilizing low-grade thermal energy to augment electricity generation of GLIDES is investigated. Since GLIDES relies on gas expansion in the discharge process and the gas temperature drops during this non-isothermal process, available thermal energy, e.g. from thermal storage, Combined Cooling, Heat and Power system (CCHP), can be utilized by GLIDES to counter the cooling effect of the expansion process and elevate the gas temperature and pressure and boost the roundtrip efficiency. Several groups of comparison experiments have been conducted and the experimental results show that a maximum 12.9% cost saving could be achieved with unlimited heat source for GLIDES, and a moderate 3.8% cost improvement can be expected when operated coordinately with CCHP and thermal energy storage in a smart building.


2020 ◽  
Vol 54 (6) ◽  
pp. 126-136
Author(s):  
Jian Liu ◽  
Robert J. Cavagnaro ◽  
Zhiqun Daniel Deng ◽  
Yuyan Shao ◽  
Li-Jung Kuo ◽  
...  

AbstractRenewable power generated from ocean wave energy has faced technological and cost barriers that have hindered its penetration into utility-scale electricity markets. As an alternative, the production of chemical fuels—for example, ammonia (NH3), which has high energy density (11.5 MJ/L) and facile storage properties—may open wave energy to new markets including ocean exploration and transportation. Electrochemical synthesis of NH3 from air and water at ambient conditions has been studied and documented in the literature. Based on recent reports, it is possible to achieve an overall conversion efficiency of 10% from wave energy to NH3 by electrochemically reacting air and water. If all the 1170-TWh/year recoverable wave energy in the United States were used to produce renewable NH3 fuel as a replacement for hydrocarbon fuels, more than 250 million tons of CO2 emissions every year would be eliminated without accounting for the small amount of CO2 emission from the conversion of NH3. Several potential at-sea application scenarios have been proposed for renewable NH3 fuel including production and storage for marine shipping and seasonal energy storage for Arctic exploration. Liquefied NH3 has much higher energy density, both gravimetrically and volumetrically, than a variety of batteries; however, the energy efficiency of NH3 is lower than that of commonly used batteries such as Li-ion batteries. The levelized cost of storing NH3 prepared using electricity can be less than $0.2/kWh, and the storage time can exceed 10,000 h, which indicates that NH3 could be a promising energy-storage solution that makes use of abundant wave energy. However, safety and environmental concerns involved in the use of NH3 at sea exist and are identified and discussed in this paper. Also discussed are challenges regarding the electrocatalyst used for NH3 synthesis and how molecular simulation may help to screen electrocatalysts with high efficiency and selectivity.


2020 ◽  
Vol 22 (46) ◽  
pp. 27300-27307
Author(s):  
T. Kaewmaraya ◽  
T. Hussain ◽  
R. Umer ◽  
Z. Hu ◽  
X. S. Zhao

Sodium–sulfur batteries (NaSBs) have emerged as a promising energy storage technology for large-scale stationary applications such as smart electrical grids due to their exceptionally high energy density and cost-effectiveness.


2019 ◽  
Author(s):  
Jonathan Ogland-Hand ◽  
Marcos W. Miranda ◽  
Jeffrey Bielicki ◽  
Benjamin M. Adams ◽  
Thomas Buscheck ◽  
...  

Author(s):  
Zhiqiang Luo ◽  
Silin Zheng ◽  
Shuo Zhao ◽  
Xin Jiao ◽  
Zongshuai Gong ◽  
...  

Benzoquinone with high theoretical capacity is anchored on N-plasma engraved porous carbon as a desirable cathode for rechargeable aqueous Zn-ion batteries. Such batteries display tremendous potential in large-scale energy storage applications.


Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1535
Author(s):  
Yanjie Wang ◽  
Yingjie Zhang ◽  
Hongyu Cheng ◽  
Zhicong Ni ◽  
Ying Wang ◽  
...  

Lithium metal batteries have achieved large-scale application, but still have limitations such as poor safety performance and high cost, and limited lithium resources limit the production of lithium batteries. The construction of these devices is also hampered by limited lithium supplies. Therefore, it is particularly important to find alternative metals for lithium replacement. Sodium has the properties of rich in content, low cost and ability to provide high voltage, which makes it an ideal substitute for lithium. Sulfur-based materials have attributes of high energy density, high theoretical specific capacity and are easily oxidized. They may be used as cathodes matched with sodium anodes to form a sodium-sulfur battery. Traditional sodium-sulfur batteries are used at a temperature of about 300 °C. In order to solve problems associated with flammability, explosiveness and energy loss caused by high-temperature use conditions, most research is now focused on the development of room temperature sodium-sulfur batteries. Regardless of safety performance or energy storage performance, room temperature sodium-sulfur batteries have great potential as next-generation secondary batteries. This article summarizes the working principle and existing problems for room temperature sodium-sulfur battery, and summarizes the methods necessary to solve key scientific problems to improve the comprehensive energy storage performance of sodium-sulfur battery from four aspects: cathode, anode, electrolyte and separator.


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