Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

PDF

Selected Works

Joshua M. Pearce

Selected Works

Distributed generation

Articles 1 - 5 of 5

Full-Text Articles in Entire DC Network

Technical Solar Photovoltaic Potential Of Scaled Parking Lot Canopies: A Case Study Of Walmart U.S.A., Ram Krishnan, Amberlee S. Haselhuhn, Joshua M. Pearce Mar 2018

Technical Solar Photovoltaic Potential Of Scaled Parking Lot Canopies: A Case Study Of Walmart U.S.A., Ram Krishnan, Amberlee S. Haselhuhn, Joshua M. Pearce

Joshua M. Pearce

Solar photovoltaic (PV) technology can provide sustainable power for the growing global population in cities, but it demands considerable land area. This is a challenge for densely populated cities. However, the stranded assets of non-productive parking lots areas can be converted to solar farms with PV canopies, enabling sustainable electricity generation while preserving their function to park automobiles. This study provides a method for determining the technical and economic potential for converting a national scale retail company’s parking lot area to a solar farm. First, the parking lot area for the company is determined and divided into zones based upon …

Go to article

Simple And Low-Cost Method Of Planning For Tree Growth And Lifetime Effects On Solar Photovoltaic Systems Performance, C. Dereli, C. Yücedağ, Joshua M. Pearce Oct 2015

Simple And Low-Cost Method Of Planning For Tree Growth And Lifetime Effects On Solar Photovoltaic Systems Performance, C. Dereli, C. Yücedağ, Joshua M. Pearce

Joshua M. Pearce

The use of distributed solar photovoltaic (PV) systems is growing more common as solar energy conversion efficiencies increase while costs decrease. Thus, PV system installations are increasing in non-optimal locations such as those potentially shaded with trees. Tree-related shading can cause a significant power loss and an increasing collection of laws have been enacted and are under development to protect the right of PV owners to solar access. This paper provides a new method to predict the shading losses for a given tree species, orientation to a PV array, and geographic location using existing free tools in order to assist …

Go to article

Institutional-Scale Operational Symbiosis Of Photovoltaic And Cogeneration Energy Systems, M. Mostofi, A. H. Nosrat, Joshua M. Pearce Dec 2010

Institutional-Scale Operational Symbiosis Of Photovoltaic And Cogeneration Energy Systems, M. Mostofi, A. H. Nosrat, Joshua M. Pearce

Joshua M. Pearce

Due to the negative environmental effects of fossil fuel combustion, there is a growing interest in both improved efficiency in energy management and a large-scale transition to renewable energy systems. Using both of these strategies, a large institutional-scale hybrid energy system is proposed here, which incorporates both solar photovoltaic energy conversion to supply renewable energy and cogeneration to improve efficiency. In this case, the photovoltaic reduces the run time for the cogeneration to meet load, particularly in peaking air conditioning times. In turn, however, the cogeneration system is used to provide power back up for the photovoltaic during the night …

Go to article

Expanding Photovoltaic Penetration With Residential Distributed Generation From Hybrid Solar Photovoltaic Combined Heat And Power Systems, Joshua M. Pearce Jul 2009

Expanding Photovoltaic Penetration With Residential Distributed Generation From Hybrid Solar Photovoltaic Combined Heat And Power Systems, Joshua M. Pearce

Joshua M. Pearce

The recent development of small scale combined heat and power (CHP) systems has provided the opportunity for in-house power backup of residential-scale photovoltaic (PV) arrays. This paper investigates the potential of deploying a distributed network of PV + CHP hybrid systems in order to increase the PV penetration level in the U.S. The temporal distribution of solar flux, electrical and heating requirements for representative U.S. single family residences were analyzed and the results clearly show that hybridizing CHP with PV can enable additional PV deployment above what is possible with a conventional centralized electric generation system. The technical evolution of …

Go to article

Reducing Greenhouse Gas Emissions By Inducing Energy Conservation And Distributed Generation From Elimination Of Electric Utility Customer Charges, Joshua M. Pearce, Paul J. Harris Sep 2007

Reducing Greenhouse Gas Emissions By Inducing Energy Conservation And Distributed Generation From Elimination Of Electric Utility Customer Charges, Joshua M. Pearce, Paul J. Harris

Joshua M. Pearce

This paper quantifies the increased greenhouse gas emissions and negative effect on energy conservation (or “efficiency penalty”) due to electric rate structures that employ an unavoidable customer charge. First, the extent of customer charges was determined from a nationwide survey of US electric tariffs. To eliminate the customer charge nationally while maintaining a fixed sum for electric companies for a given amount of electricity, an increase of 7.12% in the residential electrical rate was found to be necessary. If enacted, this increase in the electric rate would result in a 6.4% reduction in overall electricity consumption, conserving 73 billion kW …

Go to article