Compressed air energy storage integrated with floating photovoltaic plant

Cazzaniga, Raniero; Cicu, M.; Rosa-Clot, M.; Rosa-Clot, Paolo; Tina, Giuseppe Marco; Ventura, Cristina

doi:10.1016/j.est.2017.06.006

Cited by 57 publications

(37 citation statements)

References 16 publications

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“…Cazzanigaa et al 22 used the floating plant itself as energy storage by using the excess produced power of PV panels to compress air and store it in the plant pipes to use it when necessary. The main advantage of this scheme is that it overcomes the lack of sites to install PV systems, using the water surface of rivers and dams.…”

Section: Introductionmentioning

confidence: 99%

Simulation of a novel hybrid solar photovoltaic/wind system to maintain the cell surface temperature and to generate electricity

2017

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Summary A hybrid solar photovoltaic/wind system is proposed and investigated theoretically. The hybrid system is based on attaching a converging inclined duct beneath the photovoltaic (PV) panels and directed upward after the end of the panels. A wind turbine is attached at the exit of the converging duct. The converging duct will capture wind currents that at its inlet and enhances these current by buoyancy effect created by the rejected heat from the panels. The mixed convection air flow is used in cooling the PV panels and in generating electricity by driving the wind turbine at the duct exit. A mathematical model is proposed to describe the system hydrodynamic and thermal behavior. In addition to the mixed convection case, the pure free convection case, when there is no wind speed, has been tested. The design of the wind duct capturing system is not included in this study, which should be carefully manufactured to eliminate the reversed flow. The simulation results show that the integration of both systems not only enhances the performance of PV cell due to the effective cooling but also generates more electric power from the inserted turbine. At low wind speeds, it is found that the ducting system helps more in cooling the panels rather than driving the wind turbine. At these low wind speeds, the buoyancy effect may have a significant effect. However, at high wind speeds, the ducting system acts in both cooling the panels and driving the turbine, and at these high speeds, the buoyancy effect is insignificant.

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Section: Introductionmentioning

confidence: 99%

Simulation of a novel hybrid solar photovoltaic/wind system to maintain the cell surface temperature and to generate electricity

2017

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“…Here, compression heat cannot be utilized in the expansion process, therefore the efficiency of CAES would be very low.In addition to large‐scale isochoric CAES, there are some studies on small‐scale isochoric CAES for storing MRE. Cazzaniga et al proposed a FPV‐CAES concept in which the CAES is integrated with Floating PV panels as shown in Figure . The compressed air is stored in the steel pipes of the pontoon.…”

Section: Mre Storagementioning

confidence: 99%

A review of marine renewable energy storage

et al. 2019

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Summary Marine renewable energies are promising enablers of a cleaner energy future. Some technologies, like wind, are maturing and have already achieved commercial success. Similar to their terrestrial counterparts, marine renewable energy systems require energy storage capabilities to achieve the flexibility of the 21st century grid demand. The unique difficulties imposed by a harsh marine environment challenge the unencumbered rise of marine renewable energy generation and storage systems. In this study, the fundamentals of marine renewable energy generation technologies are briefed. A comprehensive review and comparison of state‐of‐the‐art novel marine renewable energy storage technologies, including pumped hydro storage (PHS), compressed air energy storage (CAES), battery energy storage (BES), hydrogen energy storage (HES), gravity energy storage (GES), and buoyancy energy storage (ByES), are conducted. The pros and cons, and potential applications, of various marine renewable energy storage technologies are also compiled. Finally, several future trends of marine renewable energy storage technologies are connoted.

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“…The only feasible alternative to pumped-hydro for large scale energy storage is represented by CAES [3][4][5][30][31][32][33]. In such systems, mechanical energy is stored in the form of a compressed or even liquefied gas [34].…”

Section: Mechanical Storage Systemsmentioning

confidence: 99%

“…Thus, no fossil fuel combustion is required. Several studies and techno-economic assessments on adiabatic CAES are available in the literature, in combination with renewable energy systems or connected to the power grid [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43]. They promise efficiencies up to 65-70%, but no plants of this type exist so far, mainly for the high investment costs, the complexity of the system, and the technological barriers to moderately high temperature heat storage.…”

Section: Mechanical Storage Systemsmentioning

confidence: 99%

Hybrid Hydrogen and Mechanical Distributed Energy Storage

2017

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Effective energy storage technologies represent one of the key elements to solving the growing challenges of electrical energy supply of the 21st century. Several energy storage systems are available, from ones that are technologically mature to others still at a research stage. Each technology has its inherent limitations that make its use economically or practically feasible only for specific applications. The present paper aims at integrating hydrogen generation into compressed air energy storage systems to avoid natural gas combustion or thermal energy storage. A proper design of such a hybrid storage system could provide high roundtrip efficiencies together with enhanced flexibility thanks to the possibility of providing additional energy outputs (heat, cooling, and hydrogen as a fuel), in a distributed energy storage framework. Such a system could be directly connected to the power grid at the distribution level to reduce power and energy intermittence problems related to renewable energy generation. Similarly, it could be located close to the user (e.g., office buildings, commercial centers, industrial plants, hospitals, etc.). Finally, it could be integrated in decentralized energy generation systems to reduce the peak electricity demand charges and energy costs, to increase power generation efficiency, to enhance the security of electrical energy supply, and to facilitate the market penetration of small renewable energy systems. Different configurations have been investigated (simple hybrid storage system, regenerate system, multistage system) demonstrating the compressed air and hydrogen storage systems effectiveness in improving energy source flexibility and efficiency, and possibly in reducing the costs of energy supply. Round-trip efficiency up to 65% can be easily reached. The analysis is conducted through a mixed theoretical-numerical approach, which allows the definition of the most relevant physical parameters affecting the system performance.

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Compressed air energy storage integrated with floating photovoltaic plant

Cited by 57 publications

References 16 publications

Simulation of a novel hybrid solar photovoltaic/wind system to maintain the cell surface temperature and to generate electricity

Simulation of a novel hybrid solar photovoltaic/wind system to maintain the cell surface temperature and to generate electricity

A review of marine renewable energy storage

Hybrid Hydrogen and Mechanical Distributed Energy Storage

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