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

David M. Willy; Tom L Acker; Ronald K. Flood

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

David M. Willy, Tom L Acker, Ronald K. Flood

Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Scopus citations

Abstract

Electric power utilities have the continual task of balancing the load with available generation. The load constantly changes in both predictable patterns (e.g. from seasonal and daily load variations), and in less predictable ways (e.g. the minute-to-minute variations or longer). The reserve and regulation activities required to balance these less predictable variations are called "ancillary services" which add to the overall cost of integration. One characteristic of solar photovoltaic (PV) power is that it varies over all the time scales of utility operations, and thus is expected to increase the ancillary services requirements. Presented here are two metrics that aid in assessing the impact of solar variability onto the grid: the Natural Variability of Irradiance (NVI) and the Natural Variability of Power (NVP). These metrics are statistical measures of changes in irradiance and power. The metrics will be defined and demonstrated using data from a 2.66-MW PV power plant.

Original language	English (US)
Title of host publication	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
Publisher	American Solar Energy Society
Pages	552-558
Number of pages	7
Volume	1
ISBN (Print)	9781510801790
State	Published - 2014
Event	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 - San Francisco, United States Duration: Jul 6 2014 → Jul 10 2014

Other

Other	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
Country/Territory	United States
City	San Francisco
Period	7/6/14 → 7/10/14

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment

Cite this

Willy, D. M., Acker, T. L., & Flood, R. K. (2014). NAtural variability of irradiance and power-simple variability metrics for photovoltaic power plants. In 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 (Vol. 1, pp. 552-558). American Solar Energy Society.

NAtural variability of irradiance and power-simple variability metrics for photovoltaic power plants. / Willy, David M.; Acker, Tom L; Flood, Ronald K.
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. Vol. 1 American Solar Energy Society, 2014. p. 552-558.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Willy, DM, Acker, TL & Flood, RK 2014, NAtural variability of irradiance and power-simple variability metrics for photovoltaic power plants. in 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. vol. 1, American Solar Energy Society, pp. 552-558, 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, San Francisco, United States, 7/6/14.

Willy DM, Acker TL, Flood RK. NAtural variability of irradiance and power-simple variability metrics for photovoltaic power plants. In 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. Vol. 1. American Solar Energy Society. 2014. p. 552-558

Willy, David M. ; Acker, Tom L ; Flood, Ronald K. / NAtural variability of irradiance and power-simple variability metrics for photovoltaic power plants. 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. Vol. 1 American Solar Energy Society, 2014. pp. 552-558

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

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ASJC Scopus subject areas

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