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DOI	10.1016/j.solener.2021.01.051
	Geographic potential of shotcrete photovoltaic racking: Direct and low-concentration cases
	Hollman, Madeleine R.; Pearce, Joshua M.
通讯作者	Pearce, JM (corresponding author), Michigan Technol Univ, Dept Elect & Comp Engn, Houghton, MI 49931 USA. ; Pearce, JM (corresponding author), Michigan Technol Univ, Dept Mat Sci & Engn, Houghton, MI 49931 USA.
来源期刊	SOLAR ENERGY
ISSN	0038-092X
EISSN	1471-1257
出版年	2021
卷号	216 页码:386-395
英文摘要	Relentless cost declines in solar photovoltaic (PV) modules have radically reduced system costs, but the result is that racking costs have become more important. In this study a new open source racking method using earth and shotcrete-based ground mounts is investigated in two geographic regions: (1) Boa Vista, Brazil, where PV rows have an optimized shallow tilt angle and can be close-packed and (2) Kingston, Canada, where racks can make use of low concentration in the required inter-row spacing. Models are developed for both locations with single, double and triple vertical stacked shotcrete-based ground-mounted PV racking systems. Using these models bills of materials and energy simulations are produced to provide a cost benefit analysis specifically for the shotcrete racks. The results show that for utility-scale PV systems near the equator, a shotcrete racking system could reduce racking costs by 18-22% from the least expensive conventional racking and as much as 47% reduction for more expensive commercial racking. Economics is less clear for shotcrete-based racking at higher latitudes that incorporate low-concentration reflectors as they can be both lower and higher costs than conventional racking, but would be expected to produce at least 18% more electricity per installed Watt. Overall this novel racking concept was found to be promising, particularly for desert regions where it could reduce soiling losses. The results of this study indicate a need for future work to fully evaluate the potential of shotcrete racking to reduce solar electricity costs at the utility scale.
英文关键词	Photovoltaic Low concentration Ground mount Racking Utility solar
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000621430300004
WOS类目	Energy & Fuels
WOS研究方向	Energy & Fuels
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351784
作者单位	[Hollman, Madeleine R.] Michigan Technol Univ, Dept Mech Engn Engn Mech, Houghton, MI 49931 USA; [Pearce, Joshua M.] Michigan Technol Univ, Dept Elect & Comp Engn, Houghton, MI 49931 USA; [Pearce, Joshua M.] Michigan Technol Univ, Dept Mat Sci & Engn, Houghton, MI 49931 USA; [Pearce, Joshua M.] Aalto Univ, Sch Elect Engn, Dept Elect & Nanoengn, Espoo, Finland
推荐引用方式 GB/T 7714	Hollman, Madeleine R.,Pearce, Joshua M.. Geographic potential of shotcrete photovoltaic racking: Direct and low-concentration cases[J],2021,216:386-395.
APA	Hollman, Madeleine R.,&Pearce, Joshua M..(2021).Geographic potential of shotcrete photovoltaic racking: Direct and low-concentration cases.SOLAR ENERGY,216,386-395.
MLA	Hollman, Madeleine R.,et al."Geographic potential of shotcrete photovoltaic racking: Direct and low-concentration cases".SOLAR ENERGY 216(2021):386-395.