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Full-Text Articles in Physical Sciences and Mathematics

Microgrid Technology And The Arctic: Green Renewable Technology Does Relate To The Land, Gerry Dell Aug 2019

Microgrid Technology And The Arctic: Green Renewable Technology Does Relate To The Land, Gerry Dell

Head and Heart Posters 2019

Microgrids can take power from other energy sources and share their loads meaning there is a less reliance on diesel power generation. Wind mill power generators, solar power (for the summer) and battery storage are fantastic elements for providing consistent power in the Arctic. These power systems have been tried and proven, in all conditions, over many years. Geothermal is another green efficient way to heat homes and businesses in the Arctic. When I worked for Dome Petroleum in McKinley Bay NWT, I was fortunate to work in the most extreme winter weather the Arctic can produce. With global warming …


Renewable Energy Access And Resilience In Urban Developing Areas: Distributed Solar Networks And Peer-To-Peer Energy Trading In Puerto Rico, Pascale Bronder Jul 2019

Renewable Energy Access And Resilience In Urban Developing Areas: Distributed Solar Networks And Peer-To-Peer Energy Trading In Puerto Rico, Pascale Bronder

Harvey M. Applebaum ’59 Award

This senior essay under the Environmental Studies major at Yale University explores the environmental and social benefits of applying innovative technology to the energy sector. Three types of energy networks are analyzed, focusing on the use of distributed energy and peer to peer energy trading on a blockchain platform. The benefits of distributed renewable energy networks can most strongly be applied to locations in need of more reliable, resilient, and cost-effective electricity. Puerto Rico is a case study. Methods include analysis of U.S. Energy Information Administration and Census Bureau data as well as personal interviews with Puerto Rican energy developers. …


Analyzing The Efficiency Of Horizontal Photovoltaic Cells In Various Climate Regions, Parker A. Hines, Torrey J. Wagner, Clay M. Koschnick, Steven J. Schuldt Jun 2019

Analyzing The Efficiency Of Horizontal Photovoltaic Cells In Various Climate Regions, Parker A. Hines, Torrey J. Wagner, Clay M. Koschnick, Steven J. Schuldt

Faculty Publications

This research presents the development of linear regression models to predict horizontal photovoltaic power output. We collected a dataset from 14 global Department of Defense (DoD) installations over a timeframe of one year using an experimental apparatus, resulting in 24,179 usable data points. We developed a linear model to predict power output, which incorporated site-specific weather and geographical characteristics, along with Köppen-Geiger climate classifications in order to determine the effect of adding climate to the model. After performing a Wald test between the full model and a reduced model without Köppen-Geiger climate variables, it was determined that including Köppen-Geiger climate …


Using Wind And Hydro Power To Sustain The Off-Grid Power Supply For A 50' Cruising Sailboat, Keisha Meyer, Torrey J. Wagner, Jada Williams May 2019

Using Wind And Hydro Power To Sustain The Off-Grid Power Supply For A 50' Cruising Sailboat, Keisha Meyer, Torrey J. Wagner, Jada Williams

Faculty Publications

Cruising sailboats operate with a power requirement modest enough to operate mostly or completely on renewable energy technology sources. Cruisers without renewable energy systems use the vessel’s diesel engine to charge the boat’s batteries; if the systems are operated at anchor, this dramatically decreases the time before the engine needs major overhaul. System users estimate a diesel engine can run approximately 8,000 hours underway before needing major overhaul, whereas operating 500 hours at anchor produces similar wear and tear on engine pistons. Although renewable energy systems have a high initial capital cost, these systems can provide the vessel’s electrical system …


Hydropower As A Feasible Option Of The University Of Richmond, Gershom Ejoni Apr 2019

Hydropower As A Feasible Option Of The University Of Richmond, Gershom Ejoni

Environmental Studies Senior Seminar Projects

As the University of Richmond moves forward in achieving its sustainability goals, it made a decision to invest into a solar array in Spotsylvania, VA in order to offset their energy consumption with renewable energy. However, this solar array has been controversial for many of the residents in Spotsylvania. My senior seminar class has tasked itself with investigating all aspects of the University’s decision to partner with sPower. This paper will analyze the potential alternative energy sources that the University can possible consider, in particular, hydropower; thereby, determining if hydropower is a potential viable option the University of Richmond can …


The Most Environmentally Beneficial Option: An Analysis On Spower’S Solar Project In Relation To The Endangered Species Act, Victoria Williams Apr 2019

The Most Environmentally Beneficial Option: An Analysis On Spower’S Solar Project In Relation To The Endangered Species Act, Victoria Williams

Environmental Studies Senior Seminar Projects

Today, the current impacts of high greenhouse gas emissions due to energy production have been widely discussed in scholarly literature. In 2018, the University of Richmond (UR) announced a goal to match 100% of the campus' electricity demand with solar energy to decrease its carbon footprint. UR partnered with sPower to construct a 500-megawatt solar array in which UR will receive the 20-megawatts worth of energy from the site in Spotsylvania, Virginia. sPower’s solar project engendered various environmental concerns surrounding Fawn Lake and the endangered species found in the proximity of the project. Acknowledging the environmental concerns, the objective of …


Spotsylvania Solar Farm: Watershed Environmental Analysis: Material And Chemical Impacts, Colby Prokop Apr 2019

Spotsylvania Solar Farm: Watershed Environmental Analysis: Material And Chemical Impacts, Colby Prokop

Environmental Studies Senior Seminar Projects

The purpose of this compiled review is to answer the research question: What are the implications of the materials being used in the Spotsylvania sPower solar farm and the impacts of any contributing chemicals? I will approach this question using a theoretical framework to investigate the public participation (PP) process (Munch-Petersen, 2017) in the preliminary environmental analysis research done by sPower (in accordance with their special use permit [SUP]). This will be a context-specific framework, in which I will navigate the discrepancies between the environmental SUP information and citizen concerns about the chemicals and materials used in the sPower solar …


Is Wind Energy A Better Option For The University Of Richmond?, Steven Yu Apr 2019

Is Wind Energy A Better Option For The University Of Richmond?, Steven Yu

Environmental Studies Senior Seminar Projects

The purpose of this assignment is to answer the question of: Is Wind Energy the Better Option for the University of Richmond? This question is more than simply if wind power will supply the campus the greatest amount of energy, but also looks at the educational, social, environmental and political benefits that would also be associated with it. In order to understand the feasibility of wind power on the University of Richmond campus, I looked at factors such as: energy production from wind turbines, past wind patterns in Richmond, VA, impacts to the environment. This is only one part of …


Austere Location Wind Turbine Energy System Analysis, Lukas Cowen, Douglas S. Dudis, Torrey J. Wagner Apr 2019

Austere Location Wind Turbine Energy System Analysis, Lukas Cowen, Douglas S. Dudis, Torrey J. Wagner

Faculty Publications

One promising technology to combat an energy shortage in austere locations is wind energy. In combination with battery storage and generator backup, we explore the feasibility of using a hybrid energy system to reduce the volume of diesel fuel required. Modeling the energy demands in austere locations will enable missions in remote settings to optimize their energy costs, increased their energy resiliency and assure their supply. For a modeled time-series energy requirement that varied between 2.4 MW and 5.1 MW, the optimal wind system size was 9.9 MW of installed wind power paired with a 741 kWh battery. Assuming an …


Clean Energy Justice: Charting An Emerging Agenda, Shelley Welton, Joel B. Eisen Jan 2019

Clean Energy Justice: Charting An Emerging Agenda, Shelley Welton, Joel B. Eisen

All Faculty Scholarship

The rapid transition to clean energy is fraught with potential inequities. As clean energy policies ramp up in scale and ambition, they confront challenging new questions: Who should pay for the transition? Who should live next to the industrial-scale wind and solar farms these policies promote? Will the new “green” economy be a fairer one, with more widespread opportunity, than the fossil fuel economy it is replacing? Who gets to decide what kinds of resources power our decarbonized world? In this article, we assert that it is useful to understand these challenges collectively, as part of an emerging agenda of …