Student capstone and applied projects from ASU's School of Sustainability.

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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

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
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

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.
ContributorsShamblin, Sandra M. (Writer of accompanying material)
Created2020-05-15
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Description
At a confluence of accelerating climate change, unprecedented technological advancement, and increasing corporate and government transparency, global systems are reaching a level of complexity never seen before. Much about how the future will play out is unknown. But what is clear is the need for a more sustainable structure to

At a confluence of accelerating climate change, unprecedented technological advancement, and increasing corporate and government transparency, global systems are reaching a level of complexity never seen before. Much about how the future will play out is unknown. But what is clear is the need for a more sustainable structure to all organizations, and only those that are willing and able to adapt will survive. Few industries have a greater need for this change than golf, a sport that has shown significant decline in social and cultural relevance in recent decades due to controversial business practices and varying perspective on environmental impact. Greener Golf seeks to help businesses prepare for this needed level of resiliency.This project sought to address one of the least sustainable industries in one of the least sustainable cities, Phoenix, Arizona. Golf was chosen as the specific focus due to its significant impact on both the landscape of the state and its water reserves. Greener Golf was established as a driving force for sustainability advocacy and education and a platform where golf managers, workers, vendors, players, and entrepreneurs alike can come to learn about sustainability efforts and solutions in the golf world. It also serves to connect a network of like-minded individuals with the common goal of bringing sustainability to the sport they love. With the right vision and partnerships, a robust, adaptable, resilient, and inclusive business model can be achieved, elevating the game for future generations.
ContributorsGinn, David (Writer of accompanying material)
Created2020-05-13