Doctoral Dissertations


"Renewable energy-powered microgrids have proven to be a valuable technology for self-contained (off-grid) energy systems. Characterizing microgrid system performance pre-deployment would allow the system to be appropriately sized to meet all required electrical loads at a given renewable source operational time frequency. A vanadium redox battery was empirically characterized to determine operating efficiency as a function of charging characteristics and parasitic load losses. A model was developed to iteratively determine system performance based on known weather conditions and load requirements. A case study was performed to compare modeled system performance to measurements taken during operation of the microgrid system. Another iterative model was developed to incrementally predict the microgrid operating performance as a function of diesel generator operating frequency. Calibration of the model was performed to determine accurate PV panel and inverter efficiencies. A case study was performed to estimate the constant loads the system could power at varying diesel generator operating frequencies. Typical Meteorological Year 3 (TMY3) data from 217 Class I locations throughout the United States was inserted into the model to determine the quantity of external AC and DC load the system could supply at intermittent diesel generator variable operational frequencies. Ordinary block Kriging analysis was performed using ArcGIS to interpolate AC and DC load power between TMY3 Class I locations for each diesel generator operating frequency. Figures representing projected AC and DC external load were then developed for each diesel generator operating frequency"--Abstract, page iv.


Elmore, A. Curt

Committee Member(s)

Cawlfield, Jeffrey D.
Rogers, J. David
Maerz, Norbert H.
Crow, Mariesa


Geosciences and Geological and Petroleum Engineering

Degree Name

Ph. D. in Geological Engineering


Leonard Wood Institute
U.S. Air Force Research Laboratory (Wright-Patterson Air Force Base, Ohio)


Missouri University of Science and Technology

Publication Date

Summer 2012

Journal article titles appearing in thesis/dissertation

  • Performance prediction of a vanadium redox battery for use in portable, scalable microgrids
  • Microgrid load characterization using long-term weather data
  • Predicting performance of a renewable energy-powered microgrid throughout the United States using Typical Meteorological Year 3 data


xvi, 136 pages

Note about bibliography

Includes bibliographical references.


© 2012 Joe David Guggenberger, II, All rights reserved.

Document Type

Dissertation - Open Access

File Type




Subject Headings

Oxidation-reduction reaction
Photovoltaic cells
Renewable energy sources
Storage batteries -- Design and construction
Vanadium -- Electric properties

Thesis Number

T 10026

Print OCLC #


Electronic OCLC #