Initial operating experience of the 12-MW La Ola photovoltaic system.

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Description

The 1.2-MW La Ola photovoltaic (PV) power plant in Lanai, Hawaii, has been in operation since December 2009. The host system is a small island microgrid with peak load of 5 MW. Simulations conducted as part of the interconnection study concluded that unmitigated PV output ramps had the potential to negatively affect system frequency. Based on that study, the PV system was initially allowed to operate with output power limited to 50% of nameplate to reduce the potential for frequency instability due to PV variability. Based on the analysis of historical voltage, frequency, and power output data at 50% output ... continued below

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34 p.

Creation Information

Ellis, Abraham; Lenox, Carl (SunPower Corporation, Richmond, CA); Johnson, Jay; Quiroz, Jimmy Edward & Schenkman, Benjamin L. October 1, 2011.

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Description

The 1.2-MW La Ola photovoltaic (PV) power plant in Lanai, Hawaii, has been in operation since December 2009. The host system is a small island microgrid with peak load of 5 MW. Simulations conducted as part of the interconnection study concluded that unmitigated PV output ramps had the potential to negatively affect system frequency. Based on that study, the PV system was initially allowed to operate with output power limited to 50% of nameplate to reduce the potential for frequency instability due to PV variability. Based on the analysis of historical voltage, frequency, and power output data at 50% output level, the PV system has not significantly affected grid performance. However, it should be noted that the impact of PV variability on active and reactive power output of the nearby diesel generators was not evaluated. In summer 2011, an energy storage system was installed to counteract high ramp rates and allow the PV system to operate at rated output. The energy storage system was not fully operational at the time this report was written; therefore, analysis results do not address system performance with the battery system in place.

Physical Description

34 p.

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  • Report No.: SAND2011-8848
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/1031297 | External Link
  • Office of Scientific & Technical Information Report Number: 1031297
  • Archival Resource Key: ark:/67531/metadc829959

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Creation Date

  • October 1, 2011

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

Description Last Updated

  • Nov. 29, 2016, 3:28 p.m.

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Ellis, Abraham; Lenox, Carl (SunPower Corporation, Richmond, CA); Johnson, Jay; Quiroz, Jimmy Edward & Schenkman, Benjamin L. Initial operating experience of the 12-MW La Ola photovoltaic system., report, October 1, 2011; United States. (digital.library.unt.edu/ark:/67531/metadc829959/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.