• 290 Citations
  • 8 h-Index
1989 …2019
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Research Output 1989 2019

2019

Distributed wind resource assessment: Comparing measured annual energy production with predictions from computational fluid dynamics

Martindale, D. L. & Acker, T. L., Dec 1 2019, In : Wind Engineering. 43, 6, p. 657-672 16 p.

Research output: Contribution to journalArticle

Computational fluid dynamics
Wind turbines
Surface roughness
Boundary conditions
Economics

Introduction to the special issue of Wind Engineering related to the 2017 NAWEA symposium

Acker, T. L., Feb 1 2019, In : Wind Engineering. 43, 1, 1 p.

Research output: Contribution to journalEditorial

Open Access
Reverse osmosis
Desalination
genetic algorithm
desalination
Genetic algorithms
2018

Graduate and undergraduate university programs in wind energy in the United States

Swift, A., Tegen, S., Acker, T. L., Manwell, J., Pattison, C. & McGowan, J., Jan 1 2018, (Accepted/In press) In : Wind Engineering.

Research output: Contribution to journalArticle

Wind power
Education
Industry
Electricity
1 Citation (Scopus)

Hydropower impacts on electrical system production costs in the Southwest United States

Bain, D. M. & Acker, T. L., Feb 1 2018, In : Energies. 11, 2, en11020368.

Research output: Contribution to journalArticle

Hydroelectric power
Drought
Operating costs
Electricity
Rivers

Implications of energy storage and climate change for pollution control under the Clean Air Act

Wadsack, K., Nielsen, E., Auberle, W. & Acker, T. L., Dec 1 2018, In : Electricity Journal. 31, 10, p. 17-23 7 p.

Research output: Contribution to journalArticle

Pollution control
Climate change
Energy storage
Gas plants
Air
2016
8 Citations (Scopus)

Applying the kriging method to predicting irradiance variability at a potential PV power plant

Monger, S. H., Morgan, E. R., Dyreson, A. R. & Acker, T. L., Feb 1 2016, In : Renewable Energy. 86, p. 602-610 9 p., 7088.

Research output: Contribution to journalArticle

Power plants
Sensors
Sensor arrays
Interpolation
2015

Methanol from electricity, water and carbon dioxide: Operational results

Morgan, E. R. & Acker, T. L., 2015, Advances in Solar Buildings and Conservation; Climate Control and the Environment; Alternate Fuels and Infrastructure; ARPA-E; Combined Energy Cycles, CHP, CCHP, and Smart Grids; Concentrating Solar Power; Economic, Environmental, and Policy Aspects of Alternate Energy; Geothermal Energy, Harvesting, Ocean Energy and Other Emerging Technologies; Hydrogen Energy Technologies; Low/Zero Emission Power Plants and Carbon Sequestration; Micro and Nano Technology Applications and Materials. American Society of Mechanical Engineers, Vol. 1.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Carbon dioxide
Methanol
Electricity
Flow rate
Water
1 Citation (Scopus)

Practical Experience with a Mobile Methanol Synthesis Device

Morgan, E. R. & Acker, T. L., Dec 1 2015, In : Journal of Solar Energy Engineering, Transactions of the ASME. 137, 6, 064506.

Research output: Contribution to journalArticle

Methanol
Water
Carbon dioxide
Electricity
Hydrogen
2014

Applying the kriging method to predicting irradiance variability at a potential PV power plant

Monger, S., Morgan, E., Dyreson, A. & Acker, T. L., 2014, 43rd ASES National Solar Conference 2014, SOLAR 2014, Including the 39th National Passive Solar Conference and the 2nd Meeting of Young and Emerging Professionals in Renewable Energy. American Solar Energy Society, Vol. 1. p. 168-174 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Power plants
Sensors
Sensor arrays
Interpolation

Comparison of solar irradiance smoothing using a 45-sensor network and the wavelet variability model

Dyreson, A., Morgan, E., Monger, S. & Acker, T. L., 2014, 43rd ASES National Solar Conference 2014, SOLAR 2014, Including the 39th National Passive Solar Conference and the 2nd Meeting of Young and Emerging Professionals in Renewable Energy. American Solar Energy Society, Vol. 1. p. 249-256 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sensor networks
Power plants
Sensors
Electricity

Dead band method for solar irradiance and power ramp detection algorithms

Willy, D. M., Dyreson, A., Acker, T. L., Morgan, E. & Flood, R. K., 2014, 43rd ASES National Solar Conference 2014, SOLAR 2014, Including the 39th National Passive Solar Conference and the 2nd Meeting of Young and Emerging Professionals in Renewable Energy. American Solar Energy Society, Vol. 2. p. 1204-1211 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Power plants
Electric utilities
Data compression
Power quality
Resource allocation

Development of a surface area metric (SAM) to characterizevariations in solar irradiance

Morgan, E. R., Dyreson, A. R., Monger, S. H. & Acker, T. L., 2014, 43rd ASES National Solar Conference 2014, SOLAR 2014, Including the 39th National Passive Solar Conference and the 2nd Meeting of Young and Emerging Professionals in Renewable Energy. American Solar Energy Society, Vol. 1. p. 257-264 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sensors

Jemez Pueblo solar power study

Acker, T. L., John, C., DeVore, K., Tallas, S., Khatibi, M., Vadiee, N., West, J., Collins, M., Billie, T. & Atcitty, S., 2014, 43rd ASES National Solar Conference 2014, SOLAR 2014, Including the 39th National Passive Solar Conference and the 2nd Meeting of Young and Emerging Professionals in Renewable Energy. American Solar Energy Society, Vol. 2. p. 1129-1136 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Solar power plants
Solar energy
Students
Towers
Sensitivity analysis
19 Citations (Scopus)

Modeling solar irradiance smoothing for large PV power plants using a 45-sensor network and the Wavelet Variability Model

Dyreson, A. R., Morgan, E. R., Monger, S. H. & Acker, T. L., 2014, In : Solar Energy. 110, p. 482-495 14 p.

Research output: Contribution to journalArticle

Sensor networks
Power plants
Sensors
Agglomeration
Testing
1 Citation (Scopus)

NAtural variability of irradiance and power-simple variability metrics for photovoltaic power plants

Willy, D. M., Acker, T. L. & Flood, R. K., 2014, 43rd ASES National Solar Conference 2014, SOLAR 2014, Including the 39th National Passive Solar Conference and the 2nd Meeting of Young and Emerging Professionals in Renewable Energy. American Solar Energy Society, Vol. 1. p. 552-558 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Power plants
Costs

Solar power variations in the regulation and sub-regulation time frames

Acker, T. L., Willy, D. M. & Flood, R. K., 2014, 43rd ASES National Solar Conference 2014, SOLAR 2014, Including the 39th National Passive Solar Conference and the 2nd Meeting of Young and Emerging Professionals in Renewable Energy. American Solar Energy Society, Vol. 1. p. 503-510 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Solar energy
Power plants
Sensors
Electric potential
Industry

Wind energy modeling for residential-scale wind power and sensitivity of economic valuation to errors in wind speed estimates

Indra, T., Bain, D. & Acker, T. L., 2014, 43rd ASES National Solar Conference 2014, SOLAR 2014, Including the 39th National Passive Solar Conference and the 2nd Meeting of Young and Emerging Professionals in Renewable Energy. American Solar Energy Society, Vol. 1. p. 621-625 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wind power
Turbines
Economics
Wind turbines
Towers
2013
2 Citations (Scopus)

Energy inefficiency in industrial agriculture: You are what you eat

Acker, T. L., Atwater, C. & Smith, D. H., Oct 2 2013, In : Energy Sources, Part B: Economics, Planning and Policy. 8, 4, p. 420-430 11 p.

Research output: Contribution to journalArticle

Agriculture
Water
Engineering technology
Farms
Sustainable development
2012

Editorial

Acker, T. L., Feb 1 2012, In : Wind Engineering. 36, 1

Research output: Contribution to journalArticle

18 Citations (Scopus)

Integration of wind and hydropower systems: Results of IEA wind task 24

Acker, T. L., Robitaille, A., Holttinen, H., Piekutowski, M. & Tande, J. O. G., Feb 1 2012, In : Wind Engineering. 36, 1, p. 1-18 18 p.

Research output: Contribution to journalArticle

Costs

Integration of wind and hydropower systems. Volume 2: Participant case studies

Acker, T. L., Aug 2012, Wind and Hydropower Integration: Concepts, Considerations and Case Studies. Nova Science Publishers, Inc., p. 149-294 146 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Northern Arizona University's partnerships with tribes for renewable energy Development

Chischilly, A. M., Acker, T., Wadsack, K. & Khatibi, M., 2012, World Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conferen. Vol. 3. p. 1757-1761 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Energy resources
Industry
Planning
Economics
Energy efficiency

The global potentials for small-to mid-sized wind (10-500 kW) production: Using a Kenyan case study

Acker, T. L., Smith, D. H., Weathers, B. & Zinenko, A., Jan 2012, In : Energy Sources, Part B: Economics, Planning and Policy. 7, 1, p. 91-103 13 p.

Research output: Contribution to journalArticle

Wind power
market
Wind turbines
Electricity
wind turbine
3 Citations (Scopus)

Wind integration impacts on hydropower and system balancing operations in the Grant County PUD

Acker, T. L., Buechler, J. T., Knitter, K., Conway, K. J. & Noteboom, R., Feb 1 2012, In : Wind Engineering. 36, 1, p. 81-96 16 p.

Research output: Contribution to journalArticle

Wind power
Public utilities
Planning
2011
2 Citations (Scopus)

Improving hydrogeneration representation in a production cost model used for long-term transmission studies in the Western Interconnection

Dennis, C. M., Walish, R. C., Pacini, H. M., Chisholm, T. A. & Acker, T. L., 2011, 2011 IEEE/PES Power Systems Conference and Exposition, PSCE 2011. 5772586

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Planning
Costs
Electricity
5 Citations (Scopus)
desalination
groundwater
groundwater resource
resource
aquifer
2010

A comparative wind investigation using mesoscale numerical predictions and experimental data at Aubrey Cliffs, Arizona

Barton, M. S., Acker, T. L. & Duque, E. P. N., 2010, ASME 2010 4th International Conference on Energy Sustainability, ES 2010. Vol. 2. p. 855-865 11 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wind power
Computer simulation
2 Citations (Scopus)

A methodology for comprehensive characterization of errors in wind power forecasting

Bielecki, M. F., Kemper, J. J. & Acker, T. L., 2010, ASME 2010 4th International Conference on Energy Sustainability, ES 2010. Vol. 2. p. 867-876 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wind power
Mean square error
Error analysis
Mathematical operators
Time series
2 Citations (Scopus)

Energy and water use in Arizona agriculture

Acker, T. L., Glauth, M., Atwater, C., French, E. & Smith, D. H., Oct 2010, In : Energy Sources, Part B: Economics, Planning and Policy. 5, 4, p. 315-326 12 p.

Research output: Contribution to journalArticle

energy use
Agriculture
water use
Crops
agriculture
1 Citation (Scopus)

Modeling of wind power production forecast errors for wind integration studies

Kemper, J. J., Bielecki, M. F. & Acker, T. L., 2010, ASME 2010 4th International Conference on Energy Sustainability, ES 2010. Vol. 2. p. 885-894 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wind power
Time series
Power plants
Costs

Policy solutions for increasing economic impacts of wind development in Arizona

Wadsack, K. E. & Acker, T. L., 2010, ASME 2010 4th International Conference on Energy Sustainability, ES 2010. Vol. 1. p. 103-111 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Economics
Wind power
Operating costs
Lakes
Power plants
1 Citation (Scopus)

Western wind and solar integration study hydropower anaysis: Benefits of hydropower in large-scale integration of renewables in the Western United States

Pete, C. M., Acker, T. L., Jordan, G. & Harpman, D. A., 2010, ASME 2010 4th International Conference on Energy Sustainability, ES 2010. Vol. 1. p. 567-576 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

LSI circuits
Wind power
Dynamic loads
Operating costs
Solar energy
2008
19 Citations (Scopus)

Estimating the economic benefits of wind energy projects using Monte Carlo simulation with economic input/output analysis

Williams, S. K., Acker, T. L., Goldberg, M. & Greve, M., Jul 2008, In : Wind Energy. 11, 4, p. 397-414 18 p.

Research output: Contribution to journalArticle

Wind power
Economics
Wages
Sensitivity analysis
Monte Carlo simulation
119 Citations (Scopus)

Using standard deviation as a measure of increased operational reserve requirement for wind power

Holttinen, H., Milligan, M., Kirby, B., Acker, T. L., Neimane, V. & Molinski, T., 2008, In : Wind Engineering. 32, 4, p. 355-378 24 p.

Research output: Contribution to journalArticle

Wind power
4 Citations (Scopus)

Wind integration cost impact study for the Arizona public service company: Modeling approach and results

Acker, T. L., Zavadil, R., Potter, C. & Flood, R., 2008, In : Wind Engineering. 32, 4, p. 339-354 16 p.

Research output: Contribution to journalArticle

Wind power
Costs
Industry
Power plants
2007
12 Citations (Scopus)

Best practices in grid integration of variable wind power: Summary of recent US case study results and mitigation measures

Smith, J. C., Parsons, B., Milligan, M. R., Acker, T. L., Zavadil, R., Schuerger, M. & Demeo, E., 2007, European Wind Energy Conference and Exhibition 2007, EWEC 2007. Vol. 1. p. 500-509 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wind power
Nameplates
Electric utilities
Industry
Planning
49 Citations (Scopus)

Wind resource assessment in the state of Arizona: Inventory, capacity factor, and cost

Acker, T. L., Williams, S. K., Duque, E. P. N., Brummels, G. & Buechler, J., Jul 2007, In : Renewable Energy. 32, 9, p. 1453-1466 14 p.

Research output: Contribution to journalArticle

Wind power
Costs
Taxation
Electric lines
Information systems
2006
1 Citation (Scopus)

Energy planning for Indian nations within the WRAP: A field guide

Acker, T. L., Jones, C. & Smith, D. H., 2006, In : American Indian Culture and Research Journal. 30, 4, p. 115-132 18 p.

Research output: Contribution to journalArticle

energy
planning
Energy
Planning

Recommendations for reducing energy consumption and improving air quality through Energy efficiency on native-American lands

Acker, T. L., Auberle, W. M., Eastwood, J. D., Laroche, D. R., Ormond, A. S., Slack, R. P. & Smith, D. H., Sep 1 2006, In : Energy Sources, Part B: Economics, Planning and Policy. 1, 3, p. 223-234 12 p.

Research output: Contribution to journalArticle

Air quality
energy efficiency
Energy efficiency
air quality
Energy utilization
2005
2 Citations (Scopus)
ethnic group
energy
efficiency
economics
2003

Implications of the regional haze rule on renewable and wind energy development on native American lands in the west

Acker, T. L., Auberle, W. M., Duque, E. P. N., Jeffery, W. D., Laroche, D. R., Masayesva, V. & Smith, D. H., Oct 2003, In : Wind Energy. 6, 4, p. 347-354 8 p.

Research output: Contribution to journalArticle

Wind power
Renewable energy resources
Energy resources
Economics
Air
1999
4 Citations (Scopus)

Acoustic oscillations in a cylindrical chamber with a hub baffle

Acker, T. L., Mitchell, C. E. & Cody, J. D., 1999, 5th AIAA/CEAS Aeroacoustics Conference and Exhibit. American Institute of Aeronautics and Astronautics Inc, AIAA, p. 1112-1122 11 p. AIAA 99-1971

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Acoustics
Liquid propellants
Rocket engines
Combustion chambers
Eigenvalues and eigenfunctions
1 Citation (Scopus)

Aerodynamic performance of the NREL Unsteady Aerodynamics Experiment (Phase IV) twisted rotor

Acker, T. L. & Hand, M. M., 1999, 37th Aerospace Sciences Meeting and Exhibit. American Institute of Aeronautics and Astronautics Inc, AIAA

Research output: Chapter in Book/Report/Conference proceedingConference contribution

unsteady aerodynamics
renewable energy
aerodynamics
rotors
Aerodynamics
1994
11 Citations (Scopus)

Combustion zone-acoustic cavity interactions in rocket combustors

Acker, T. L. & Mitchell, C. E., Mar 1994, In : Journal of Propulsion and Power. 10, 2, p. 235-243 9 p.

Research output: Contribution to journalArticle

combustion chambers
Rockets
rockets
Combustors
absorbers
1990

Hydrogen arcjet sealing techniques and thermal analysis

Aston, G., Aston, M. B., Kolts, J. B. & Acker, T. L., Jan 1 1990.

Research output: Contribution to conferencePaper

Thermoanalysis
Cooling
Hydrogen
Propellants
Flanges
1 Citation (Scopus)

Preliminary tests of the electrostatic plasma accelerator

Aston, G. & Acker, T. L., Jan 1 1990.

Research output: Contribution to conferencePaper

Plasma accelerators
Electrostatics
Plasmas
Momentum
1989
1 Citation (Scopus)

Two dimensional and temperature effects on acoustic cavity tuning and performance in rocket combustors

Mitchell, C. E., Dodd, F. E., Acker, T. L. & Howell, D. J., 1989, American Society of Mechanical Engineers, Noise Control and Acoustics Division (Publication) NCA. Publ by ASME, Vol. 4. p. 11-16 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

combustion chambers
Rockets
rockets
Combustors
Thermal effects