PV Fleet Performance Data Initiative (March 2020 Methodology Report)

Deline, Chris; Muller, Matthew; Deceglie, Michael; Jordan, Dirk; Anderson, Kevin; Simpson, Lin; Perry, Kirsten; White, Robert

doi:10.2172/1659786

Title: PV Fleet Performance Data Initiative (March 2020 Methodology Report)

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Abstract

Data for thousands of systems by multiple sources were transmitted to NREL for evaluation. Initial automated data quality assurance (QA) checks identified hundreds of systems (QA Tier 1) with high-quality meteorological and AC production data and hundreds of QA Tier 2 systems with adequate data quality. A standard RdTools analysis was conducted for these systems, evaluating performance loss on an annualized basis. To date with the systems evaluated so far, we find a median performance loss rate (aka Rd or degradation rates) for the entire fleet of -0.72%/year based on individual inverter data, which is in line with historical degradation rates previously published for modules and systems (-0.5% to -0.9% / yr, Jordan et al. 2016). A fleet-scale distribution based on revenue-grade meter data rather than inverter AC (alternating current) data yields a slightly different result. We are working to understand the difference between this result and the inverter-based result of -0.72%/year.

Authors:

^[1]; Muller, Matthew ^[1]; Deceglie, Michael ^[1]; Jordan, Dirk ^[1];

^[1]; Simpson, Lin ^[1]; Perry, Kirsten ^[1]; White, Robert ^[1]

National Renewable Energy Lab. (NREL), Golden, CO (United States)

Publication Date:: 2020-06-01

Research Org.:: National Renewable Energy Lab. (NREL), Golden, CO (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office

OSTI Identifier:: 1659786

Report Number(s):: NREL/TP-5K00-76687
MainId:9348;UUID:10720d1f-60f7-428d-9431-fe2dd371e677;MainAdminID:13355

DOE Contract Number:: AC36-08GO28308

Resource Type:: Technical Report

Country of Publication:: United States

Language:: English

Subject:: 14 SOLAR ENERGY; degradation; performance; photovoltaic; PV

Citation Formats


                    Deline, Chris, Muller, Matthew, Deceglie, Michael, Jordan, Dirk, Anderson, Kevin, Simpson, Lin, Perry, Kirsten, and White, Robert. PV Fleet Performance Data Initiative (March 2020 Methodology Report).  United States: N. p., 2020. 
        Web.  doi:10.2172/1659786.

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                    Deline, Chris, Muller, Matthew, Deceglie, Michael, Jordan, Dirk, Anderson, Kevin, Simpson, Lin, Perry, Kirsten, & White, Robert. PV Fleet Performance Data Initiative (March 2020 Methodology Report).  United States.  https://doi.org/10.2172/1659786

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                    Deline, Chris, Muller, Matthew, Deceglie, Michael, Jordan, Dirk, Anderson, Kevin, Simpson, Lin, Perry, Kirsten, and White, Robert. 2020.  
        "PV Fleet Performance Data Initiative (March 2020 Methodology Report)".  United States.  https://doi.org/10.2172/1659786.  https://www.osti.gov/servlets/purl/1659786.

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@article{osti_1659786,

  title        = {PV Fleet Performance Data Initiative (March 2020 Methodology Report)},

  author       = {Deline, Chris and Muller, Matthew and Deceglie, Michael and Jordan, Dirk and Anderson, Kevin and Simpson, Lin and Perry, Kirsten and White, Robert},

  abstractNote = {Data for thousands of systems by multiple sources were transmitted to NREL for evaluation. Initial automated data quality assurance (QA) checks identified hundreds of systems (QA Tier 1) with high-quality meteorological and AC production data and hundreds of QA Tier 2 systems with adequate data quality. A standard RdTools analysis was conducted for these systems, evaluating performance loss on an annualized basis. To date with the systems evaluated so far, we find a median performance loss rate (aka Rd or degradation rates) for the entire fleet of -0.72%/year based on individual inverter data, which is in line with historical degradation rates previously published for modules and systems (-0.5% to -0.9% / yr, Jordan et al. 2016). A fleet-scale distribution based on revenue-grade meter data rather than inverter AC (alternating current) data yields a slightly different result. We are working to understand the difference between this result and the inverter-based result of -0.72%/year.},

  doi          = {10.2172/1659786},

  url          = {https://www.osti.gov/biblio/1659786},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {6}

}

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