DC-Connected Solar Plus Storage Modeling and Analysis for Behind-the-Meter Systems in the System Advisor Model

Nicholas DiOrio; Janine Keith; Nathan Blair

doi:10.1109/PVSC.2018.8547329

DC-Connected Solar Plus Storage Modeling and Analysis for Behind-the-Meter Systems in the System Advisor Model

Nicholas DiOrio, Janine Keith, Nathan Blair

Strategic Energy Analysis Center

Research output: Contribution to conference › Paper › peer-review

15 Scopus Citations

Abstract

A detailed model for PV plus DC-connected batteries was developed. This model was compared to an existing ACconnected battery model in the System Advisor Model (SAM) tool using a hypothetical Honolulu residence with a PV plus storage system. The stand-alone PV system was shown to provide the most value; however due to the increased difficulty of PV systems being approved for grid interconnection in Hawaii, it is valuable to install an AC or DC connected battery to enable full PV self-consumption under a less restrictive interconnection option. In that case both battery systems enabled full PV selfconsumption at the residence, requiring no power to be exported to the grid. The DC-connected battery system captured energy from the PV array which would have also been clipped due to inverter limitations. For a PV system with DC/AC ratio of 1.23, the battery configurations produced net-present values within 1% of each other, but when the DC/AC ratio increased to 1.85, the DC-connected system increased the net-present value by 13%.

Original language	American English
Pages	3777-3782
Number of pages	6
DOIs	https://doi.org/10.1109/PVSC.2018.8547329 https://doi.org/10.1109/PVSC.2018.8547329
State	Published - 26 Nov 2018
Event	7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States Duration: 10 Jun 2018 → 15 Jun 2018

Conference

Conference	7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
Country/Territory	United States
City	Waikoloa Village
Period	10/06/18 → 15/06/18

Bibliographical note

See NREL/CP-6A20-71636 for preprint

NREL Publication Number

NREL/CP-6A20-73683

Keywords

Ac-connected
batteries
dc-connected
pv
sAM
solar plus storage
topology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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DiOrio, N., Keith, J., & Blair, N. (2018). DC-Connected Solar Plus Storage Modeling and Analysis for Behind-the-Meter Systems in the System Advisor Model. 3777-3782. Paper presented at 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018, Waikoloa Village, United States. https://doi.org/10.1109/PVSC.2018.8547329, https://doi.org/10.1109/PVSC.2018.8547329

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title = "DC-Connected Solar Plus Storage Modeling and Analysis for Behind-the-Meter Systems in the System Advisor Model",

abstract = "A detailed model for PV plus DC-connected batteries was developed. This model was compared to an existing ACconnected battery model in the System Advisor Model (SAM) tool using a hypothetical Honolulu residence with a PV plus storage system. The stand-alone PV system was shown to provide the most value; however due to the increased difficulty of PV systems being approved for grid interconnection in Hawaii, it is valuable to install an AC or DC connected battery to enable full PV self-consumption under a less restrictive interconnection option. In that case both battery systems enabled full PV selfconsumption at the residence, requiring no power to be exported to the grid. The DC-connected battery system captured energy from the PV array which would have also been clipped due to inverter limitations. For a PV system with DC/AC ratio of 1.23, the battery configurations produced net-present values within 1% of each other, but when the DC/AC ratio increased to 1.85, the DC-connected system increased the net-present value by 13%.",

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author = "Nicholas DiOrio and Janine Keith and Nathan Blair",

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DiOrio, N, Keith, J & Blair, N 2018, 'DC-Connected Solar Plus Storage Modeling and Analysis for Behind-the-Meter Systems in the System Advisor Model', Paper presented at 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018, Waikoloa Village, United States, 10/06/18 - 15/06/18 pp. 3777-3782. https://doi.org/10.1109/PVSC.2018.8547329, https://doi.org/10.1109/PVSC.2018.8547329

DC-Connected Solar Plus Storage Modeling and Analysis for Behind-the-Meter Systems in the System Advisor Model. / DiOrio, Nicholas; Keith, Janine ; Blair, Nathan.
2018. 3777-3782 Paper presented at 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018, Waikoloa Village, United States.

Research output: Contribution to conference › Paper › peer-review

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AU - Blair, Nathan

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N2 - A detailed model for PV plus DC-connected batteries was developed. This model was compared to an existing ACconnected battery model in the System Advisor Model (SAM) tool using a hypothetical Honolulu residence with a PV plus storage system. The stand-alone PV system was shown to provide the most value; however due to the increased difficulty of PV systems being approved for grid interconnection in Hawaii, it is valuable to install an AC or DC connected battery to enable full PV self-consumption under a less restrictive interconnection option. In that case both battery systems enabled full PV selfconsumption at the residence, requiring no power to be exported to the grid. The DC-connected battery system captured energy from the PV array which would have also been clipped due to inverter limitations. For a PV system with DC/AC ratio of 1.23, the battery configurations produced net-present values within 1% of each other, but when the DC/AC ratio increased to 1.85, the DC-connected system increased the net-present value by 13%.

AB - A detailed model for PV plus DC-connected batteries was developed. This model was compared to an existing ACconnected battery model in the System Advisor Model (SAM) tool using a hypothetical Honolulu residence with a PV plus storage system. The stand-alone PV system was shown to provide the most value; however due to the increased difficulty of PV systems being approved for grid interconnection in Hawaii, it is valuable to install an AC or DC connected battery to enable full PV self-consumption under a less restrictive interconnection option. In that case both battery systems enabled full PV selfconsumption at the residence, requiring no power to be exported to the grid. The DC-connected battery system captured energy from the PV array which would have also been clipped due to inverter limitations. For a PV system with DC/AC ratio of 1.23, the battery configurations produced net-present values within 1% of each other, but when the DC/AC ratio increased to 1.85, the DC-connected system increased the net-present value by 13%.

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KW - topology

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DC-Connected Solar Plus Storage Modeling and Analysis for Behind-the-Meter Systems in the System Advisor Model

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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