Home > Research > Publications & Outputs > The Land Sparing, Water Surface Use Efficiency,...

Links

Text available via DOI:

View graph of relations

The Land Sparing, Water Surface Use Efficiency, and Water Surface Transformation of Floating Photovoltaic Solar Energy Installations

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published

Standard

The Land Sparing, Water Surface Use Efficiency, and Water Surface Transformation of Floating Photovoltaic Solar Energy Installations. / Cagle, Alexander; Armstrong, Alona; Exley, Giles; Grodsky, Steven; Macknick, Jordan; Sherwin, John; Hernandez, Rebecca R.

In: Sustainability, Vol. 12, No. 19, 8154, 02.10.2020.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

APA

Vancouver

Author

Cagle, Alexander ; Armstrong, Alona ; Exley, Giles ; Grodsky, Steven ; Macknick, Jordan ; Sherwin, John ; Hernandez, Rebecca R. / The Land Sparing, Water Surface Use Efficiency, and Water Surface Transformation of Floating Photovoltaic Solar Energy Installations. In: Sustainability. 2020 ; Vol. 12, No. 19.

Bibtex

@article{f4a3aafaec2b4318a686dd725fec3943,
title = "The Land Sparing, Water Surface Use Efficiency, and Water Surface Transformation of Floating Photovoltaic Solar Energy Installations",
abstract = "Floating photovoltaic solar energy installations (FPVs) represent a new type of water surface use, potentially sparing land needed for agriculture and conservation. However, standardized metrics for the land sparing and resource use efficiencies of FPVs are absent. These metrics are critical to understanding the environmental and ecological impacts that FPVs may potentially exhibit. Here, we compared techno-hydrological and spatial attributes of four FPVs spanning different climatic regimes. Next, we defined and quantified the land sparing and water surface use efficiency (WSUE) of each FPV. Lastly, we coined and calculated the water surface transformation (WST) using generation data at the world{\textquoteright}s first FPV (Far Niente Winery, California). The four FPVs spare 59,555 m2 of land and have a mean land sparing ratio of 2.7:1 m2 compared to ground-mounted PVs. Mean direct and total capacity-based WSUE is 94.5 ± 20.1 SD Wm−2 and 35.2 ± 27.4 SD Wm−2, respectively. Direct and total generation-based WST at Far Niente is 9.3 and 13.4 m2 MWh−1 yr−1, respectively; 2.3 times less area than ground-mounted utility-scale PVs. Our results reveal diverse techno-hydrological and spatial attributes of FPVs, the capacity of FPVs to spare land, and the utility of WSUE and WST metrics. ",
keywords = "energy geography, energy siting, floatovoltaics, floating solar, land use, land sparing, renewable energy, solar energy, photovoltaics",
author = "Alexander Cagle and Alona Armstrong and Giles Exley and Steven Grodsky and Jordan Macknick and John Sherwin and Hernandez, {Rebecca R.}",
year = "2020",
month = oct,
day = "2",
doi = "10.3390/su12198154",
language = "English",
volume = "12",
journal = "Sustainability",
issn = "2071-1050",
publisher = "MDPI AG",
number = "19",

}

RIS

TY - JOUR

T1 - The Land Sparing, Water Surface Use Efficiency, and Water Surface Transformation of Floating Photovoltaic Solar Energy Installations

AU - Cagle, Alexander

AU - Armstrong, Alona

AU - Exley, Giles

AU - Grodsky, Steven

AU - Macknick, Jordan

AU - Sherwin, John

AU - Hernandez, Rebecca R.

PY - 2020/10/2

Y1 - 2020/10/2

N2 - Floating photovoltaic solar energy installations (FPVs) represent a new type of water surface use, potentially sparing land needed for agriculture and conservation. However, standardized metrics for the land sparing and resource use efficiencies of FPVs are absent. These metrics are critical to understanding the environmental and ecological impacts that FPVs may potentially exhibit. Here, we compared techno-hydrological and spatial attributes of four FPVs spanning different climatic regimes. Next, we defined and quantified the land sparing and water surface use efficiency (WSUE) of each FPV. Lastly, we coined and calculated the water surface transformation (WST) using generation data at the world’s first FPV (Far Niente Winery, California). The four FPVs spare 59,555 m2 of land and have a mean land sparing ratio of 2.7:1 m2 compared to ground-mounted PVs. Mean direct and total capacity-based WSUE is 94.5 ± 20.1 SD Wm−2 and 35.2 ± 27.4 SD Wm−2, respectively. Direct and total generation-based WST at Far Niente is 9.3 and 13.4 m2 MWh−1 yr−1, respectively; 2.3 times less area than ground-mounted utility-scale PVs. Our results reveal diverse techno-hydrological and spatial attributes of FPVs, the capacity of FPVs to spare land, and the utility of WSUE and WST metrics.

AB - Floating photovoltaic solar energy installations (FPVs) represent a new type of water surface use, potentially sparing land needed for agriculture and conservation. However, standardized metrics for the land sparing and resource use efficiencies of FPVs are absent. These metrics are critical to understanding the environmental and ecological impacts that FPVs may potentially exhibit. Here, we compared techno-hydrological and spatial attributes of four FPVs spanning different climatic regimes. Next, we defined and quantified the land sparing and water surface use efficiency (WSUE) of each FPV. Lastly, we coined and calculated the water surface transformation (WST) using generation data at the world’s first FPV (Far Niente Winery, California). The four FPVs spare 59,555 m2 of land and have a mean land sparing ratio of 2.7:1 m2 compared to ground-mounted PVs. Mean direct and total capacity-based WSUE is 94.5 ± 20.1 SD Wm−2 and 35.2 ± 27.4 SD Wm−2, respectively. Direct and total generation-based WST at Far Niente is 9.3 and 13.4 m2 MWh−1 yr−1, respectively; 2.3 times less area than ground-mounted utility-scale PVs. Our results reveal diverse techno-hydrological and spatial attributes of FPVs, the capacity of FPVs to spare land, and the utility of WSUE and WST metrics.

KW - energy geography

KW - energy siting

KW - floatovoltaics

KW - floating solar

KW - land use

KW - land sparing

KW - renewable energy

KW - solar energy

KW - photovoltaics

U2 - 10.3390/su12198154

DO - 10.3390/su12198154

M3 - Journal article

VL - 12

JO - Sustainability

JF - Sustainability

SN - 2071-1050

IS - 19

M1 - 8154

ER -