PDF Publication Title:
Text from PDF Page: 007
Mena 1:00 Team R15 David Whitehead, Schweitzer Engineering’s vice president of Research and Development, the batteries could store the output of about one wind turbine. At the battery’s launch in Pullman, Whitehead said, “That might sound small, but it’s an enormous step forward in battery technology: This is large-scale energy storage” [17]. This shows the incredible potential these batteries have. If vanadium redox flow batteries could be further improved, an immense amount of energy could be saved and stored. In 2017, an even larger battery was put in place in Snohomish County, Washington. With the potential to store 8-megawatt-hours, the new battery shows how further development is allowing us to store more and more energy, hopefully leading to a day when the world will be completely using green energy [18]. When asked about the Pullman battery as it was being activated, Tom Karier, Eastern Washington representative for the Northwest Power and Conservation Council said, “I think it’s interesting that these are being built, it’s the missing puzzle piece for clean energy resources in the Northwest. With storage, we’ll be able to meet the peak electrical requirements, which wind and solar can’t do now” [16]. This quote summarizes how the application in Pullman shows the future promise of the technology and the value of storing green energy. Overall, the application in Pullman displays the incredible potential of vanadium redox flow batteries. WHY DOES THIS MATTER? Vanadium redox flow batteries have the potential to provide the grid energy storage necessary for energy grids to further integrate greener sources of energy. Grid energy storage offers flexibility to grid operators, allowing them to store energy that otherwise would have been put to waste through curtailment and distribute it at a later time. The vanadium redox flow battery’s design utilizes four different oxidation states of vanadium and two sets of oxidation reduction reactions to buildup electrochemical potential between the two sides of the cell when the battery is being charged. The difference in potential across the battery can then be used to send current across a power grid. Vanadium redox flow batteries have some particular benefits that make them well suited for grid energy storage. They outperform lead acid batteries in a number of criteria, including efficiency and product life span while also being more environmentally friendly. The simplicity of having all vanadium-based electrolyte lowers the maintenance costs of vanadium redox flow batteries and makes them a more attractive option for grid energy storage than other types of redox flow batteries, like iron chromium batteries. Vanadium redox flow batteries are not the most power dense type of battery, but compactness is not the most critical criteria for grid energy storage. While the battery does have some shortcomings, future research and development has the 7 University of Pittsburgh, Swanson School of Engineering First-Year Conference Paper 29.03.2019 potential to optimize vanadium redox flow batteries to overcome these shortcomings. The potential of vanadium redox flow batteries has already been seen in real world implementations of the technology. In Pullman, Washington, the battery acts as a backup generator for Schweitzer Engineering Laboratories in place of diesel generators and also acts as a grid asset, helping to redistribute load on the energy grid. More vanadium redox batteries have been implemented in other places throughout the world and have had similar success in creating a more flexible energy grid better equipped to accommodate green energy sources. In order for the batteries to have a positive impact on the sustainability of energy grids, it is important that they are paired with significant amounts of green energy infrastructure that does not release emissions. Otherwise, the use of the batteries for energy arbitrage by energy companies can result in a grid that emits more greenhouse gasses. However, when used appropriately, vanadium redox flow batteries can make energy grids more sustainable, meaning that they have a reduced impact on the environment and are profitable for grid operators while still meeting the energy needs of the end user. While further research and development is ongoing, vanadium redox flow batteries have shown great potential as a fairly efficient and affordable method of grid energy storage. As more units are installed, grids gain more control over how energy is distributed and can avoid having to curtail energy production from solar or wind sources. Maximizing the effective output of renewable sources and having increased control over how that energy is distributed can reduce energy grids’ dependence on fossil fuel power plants for regulating power outputs and lead to a net reduction in the production of greenhouse gasses. Ultimately, vanadium redox flow batteries are one piece of the larger challenge of preventing the potentially devastating consequences of climate change. SOURCES [1] P. Denholm, M. O’Connell, G. Brinkman et al. “Overgeneration from Solar Energy in California: A Field Guide to the Duck Chart.” National Renewable Energy Laboratory. 2015. Accessed 03.02.2019. https://www.nrel.gov/docs/fy16osti/65023.pdf [2] Z. Qi and G. Koenig. “Review Article: Flow battery systems with solid electroactive materials.” Journal of Vacuum Science & Technology B. 05.12.2017. Accessed 02.07.2019. https://avs.scitation.org/doi/full/10.1116/1.4983210 [3] A. Weber, M. Mench, J. Meyers et al. “Redox flow batteries: a review.” Journal of Applied Electrochemistry. 09.02.2011 Accessed 02.07.2019. https://link.springer.com/article/10.1007/s10800-011-0348-2 [4] M. Perry and A. Weber. “Advanced redox-flow batteries:PDF Image | VANADIUM REDOX FLOW BATTERIES FOR GREEN ENERGY
PDF Search Title:
VANADIUM REDOX FLOW BATTERIES FOR GREEN ENERGYOriginal File Name Searched:
c11-vanadium-redox-flow-batteries.pdfDIY PDF Search: Google It | Yahoo | Bing
Salgenx Redox Flow Battery Technology: Salt water flow battery technology with low cost and great energy density that can be used for power storage and thermal storage. Let us de-risk your production using our license. Our aqueous flow battery is less cost than Tesla Megapack and available faster. Redox flow battery. No membrane needed like with Vanadium, or Bromine. Salgenx flow battery
CONTACT TEL: 608-238-6001 Email: greg@salgenx.com (Standard Web Page)