School of Sustainability Graduate Culminating Experiences
Student capstone and applied projects from ASU's School of Sustainability.
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- All Subjects: Renewable Energy
- All Subjects: Development Tools
Description
Before the rise in renewable energy, few people considered the consequences of adding large amounts of intermittent power onto the grid. As renewable energy has become more prevalent, utility companies must adapt their business practices to accommodate these unique sources of power. This is leading to challenges on how best to manage a grid with large amounts of renewable power. Arizona Public Service (APS), the largest electricity provider in the state of Arizona, has more than 70,000 distributed solar customers on their grid and the number of solar customers increases every day. With this increase in distributed solar customers comes the solar duck curve—the phenomenon whereby solar produces energy during times of low demand. However, with the use of storage, the duck curve problem may be mitigated. This project examines the sustainability of three storage options: pumped hydro energy storage, compressed air energy storage, and lithium-ion batteries. Using several sustainability indicators, this project makes a policy recommendation to APS on the most sustainable choice for large-scale energy storage. This project found that compressed air energy storage was the most sustainable option for APS. This considered the impacts of compressed air on the environment, communities, and the costs of this storage option. One important aspect to acknowledge regarding this technology is that in its current form, it does emit some carbon emissions. However, the carbon emissions may have less of an impact if this storage facility can allow APS to use its renewable energy assets most efficiently and continue to use energy from Palo Verde, the nuclear facility in Arizona.
ContributorsRood, Devon (Author) / Romito, Marc (Contributor)
Created2018-04-25
Description
Arizona and the Phoenix metropolitan area are experiencing a housing crisis, both in terms of affordability and supply. While the number of affordable and available units has been shrinking, a separate trend has emerged that is also adding pressure to the housing market, particularly for renters—a demand for transit-oriented, walkable, sustainable communities. As governments invest in projects and infrastructure falsely branded as sustainable, environmental gentrification often occurs resulting in displacement of current residents. Without new, moderately priced housing being built, displaced residents remain housing cost burdened. Workforce housing, priced to serve lower-middle to middle-income residents, offers a release from the pressure on the housing market, but innovative models for workforce housing development are necessary to navigate the regulatory and financial barriers in place. During a Solutions Round Table event facilitated by my client, a variety of potential tools for mitigating the housing crisis and removing barriers to workforce housing development were discussed. Based on conversations documented during the event, a robust list of workforce housing development tools was created. With the help of my client, the list was winnowed down to six tools for focused research—off-site construction, cohousing, land banks, missing middle infill models, community land trusts combined with limited equity cooperatives, and public-private partnerships. This project describes these tools and outlines best practices for developing and implementing them in the Valley. The best practices are organized to serve as guidance for the private sector and public sector separately, and for embedding health and social equity. Each tool is assessed using a simplified version of Gibson’s (2006) sustainability criteria, combined into four dimensions—environment, social, economic, and holistic. The findings from the assessment are embedded as guidance throughout the final product, a white paper, which will be delivered to Urban Land Institute (ULI) Arizona District Council Task Force for Health, Equity, and Housing Affordability, my client for this project.
ContributorsVan Horn, Elizabeth (Writer of accompanying material)
Created2020-05-26
Description
This document contains a feasibility study that explores the necessity, collaborations, and
possible methods of installing a 1 megawatt lithium-ion battery storage facility at San Diego Gas
& Electric’s Century Park campus located in the Kearny Mesa neighborhood in central San
Diego, California. The battery will serve purposes of adding renewable energy to the energy mix,
reducing operations costs via peak shaving, an educational component for the region, and
meeting stringent State of California and California Public Utilities Commission mandates for
both renewable energy and battery storage capacity.
possible methods of installing a 1 megawatt lithium-ion battery storage facility at San Diego Gas
& Electric’s Century Park campus located in the Kearny Mesa neighborhood in central San
Diego, California. The battery will serve purposes of adding renewable energy to the energy mix,
reducing operations costs via peak shaving, an educational component for the region, and
meeting stringent State of California and California Public Utilities Commission mandates for
both renewable energy and battery storage capacity.
ContributorsShamblin, Sandra M. (Writer of accompanying material)
Created2020-05-15