Effect of floating photovoltaic system on water temperature of deep reservoir and assessment of its potential benefits, a case on Xiangjiaba Reservoir with hydropower station

Ji, Qianfeng; Li, Kefeng; Wang, Yuanming; Feng, Jingjie; Li, Ran; Liang, Ruifeng

doi:10.1016/j.renene.2022.06.096

Cited by 24 publications

(5 citation statements)

References 39 publications

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“…There is a significant positive correlation between water temperature and Q (p ≤ 0.01) (Figure 6). In this regard, the decrease in water temperature in the PV area may be mainly caused by the reduction in shortwave radiation, which is consistent with the results of the reservoir PV simulation experiment by Ji et al [22]. In addition, the increase in SAT mainly comes from the heating of PV panels.…”

Section: Effects Of Pv On Temperaturesupporting

confidence: 89%

“…In our case study, the distances from the PV panel to the surface are 3.02 m, 2.35 m, and 2.50 m at S1, S2, and S3 corresponding to measured wind speeds of 4.0 m/s, 3.3 m/s, and 2.4 m/s, respectively. However, the distance from the floating PV installation to the surface is very small (0.15 m [21]), corresponding to a low wind speed (approximately 0 m/s) below it [22]. Evaporation is an important method of heat flux transfer at the air-water interface, and the change in wind speed affects the water temperature by influencing evaporation [21].…”

Section: Effects Of Pv On Temperaturementioning

confidence: 99%

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The Effects of a Fishery Complementary Photovoltaic Power Plant on the Near-Surface Meteorology and Water Quality of Coastal Aquaculture Ponds

Song,

Lu,

Guo

et al. 2024

Water

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To date, most studies focus on the ecological and environmental effects of land-based photovoltaic (PV) power plants, while there is a dearth of studies examining the impacts of water-based PV power plants. The effects of a fishery complementary PV power plant, a kind of water-based PV technology, on the near-surface meteorology and aquaculture water environment were investigated in coastal aquaculture ponds in southeast China. The results showed that PV prevented 89~93% of the solar radiation on the surface of the pond, resulting in an average reduction in water temperature of 1.5 °C and a substantial decrease in light intensity of 94%. Furthermore, it weakened the wind speed by 41~50% and elevated the surface air temperature by an average of 0.6 °C. In addition, PV power results in an impressive decrease in chlorophyll-α of 72~94% and a notable increase in dissolved oxygen (DO) concentrations of 8~24%. PV power also reduced the concentration of labile phosphate, active silicate, total nitrogen, total phosphorus, and total organic carbon. However, the PV power did not have a substantial influence on the concentrations of nitrate and ammonium. Our results highlight that fishery complementary PV power plants may be able to improve water quality and benefit shade-loving species.

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Section: Effects Of Pv On Temperaturesupporting

confidence: 89%

Section: Effects Of Pv On Temperaturementioning

confidence: 99%

The Effects of a Fishery Complementary Photovoltaic Power Plant on the Near-Surface Meteorology and Water Quality of Coastal Aquaculture Ponds

Song,

Lu,

Guo

et al. 2024

Water

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show abstract

“…These systems create a shading effect that directly reduces light availability, a critical factor limiting the growth of algae, which are predominantly photosynthetic organisms. Additionally, FPVs have the potential to disrupt water circulation patterns within the aquatic environment, thereby altering nutrient dynamics and influencing the availability of essential nutrients necessary for algal proliferation [43][44][45] . Whereas the precise magnitude of algal bloom reduction attributed to FPVs requires further investigation, initial studies suggest a compelling avenue for future research [46][47][48] .…”

Section: Potential For Fpv To Reduce Water Scarcitymentioning

confidence: 99%

Decarbonization potential of floating solar photovoltaics on lakes worldwide

Woolway,

Zhao,

Rocha

et al. 2024

Nat Water

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As climate change progresses, there is increasing emphasis on net zero and energy system decarbonization. Several technologies are contributing to this agenda, but among these, the growth of solar photovoltaics has consistently exceeded all projections. With increasing land-use pressures, and the expense of building-mounted photovoltaics, water surfaces are increasingly being exploited to host these technologies. However, to date, we lack an understanding of the global potential of floating solar photovoltaics and, as such, we do not yet have sufficient insight to inform decisions on (in)appropriate areas for future deployment. Here we quantify the energy generation potential of floating solar photovoltaics on over 1 million water bodies worldwide (14,906 TWh). Our analysis suggests that with a conservative 10% surface area coverage, floating solar photovoltaics could produce sufficient energy to contribute a considerable fraction (16%, on average) of the electricity demand of some countries, thus playing an important role in decarbonizing national economies.

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“…Another advantage of FPV is its availability to be exploited at the site of hydropower sites, to utilize not only the space available but also the existing grid connections [117]. This application has already been implemented in multiple locations [118,119].…”

Section: Bpv For Floating Pv (Fpv)mentioning

confidence: 99%

A review of bifacial solar photovoltaic applications

Garrod,

Ghosh

2023

Front. Energy

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Bifacial photovoltaics (BPVs) are a promising alternative to conventional monofacial photovoltaics given their ability to exploit solar irradiance from both the front and rear sides of the panel, allowing for a higher amount of energy production per unit area. The BPV industry is still emerging, and there is much work to be done until it is a fully mature technology. There are a limited number of reviews of the BPV technology, and the reviews focus on different aspects of BPV. This review comprises an extensive in-depth look at BPV applications throughout all the current major applications, identifying studies conducted for each of the applications, and their outcomes, focusing on optimization for BPV systems under different applications, comparing levelized cost of electricity, integrating the use of BPV with existing systems such as green roofs, information on irradiance and electrical modeling, as well as providing future scope for research to improve the technology and help the industry.

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Effect of floating photovoltaic system on water temperature of deep reservoir and assessment of its potential benefits, a case on Xiangjiaba Reservoir with hydropower station

Cited by 24 publications

References 39 publications

The Effects of a Fishery Complementary Photovoltaic Power Plant on the Near-Surface Meteorology and Water Quality of Coastal Aquaculture Ponds

The Effects of a Fishery Complementary Photovoltaic Power Plant on the Near-Surface Meteorology and Water Quality of Coastal Aquaculture Ponds

Decarbonization potential of floating solar photovoltaics on lakes worldwide

A review of bifacial solar photovoltaic applications

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