Giuseppe Marco Tina

University of Catania | UNICT · Department of Electrical, Electronics and Computer Engineering (DIEEI)

The International Renewable Energy Congress (IREC) provides a forum for researchers, academicians, scientists and industrial professionals around the world on recent developments in the fields of renewable energy. The congress consists of keynotes, oral sessions and poster presentations Considered as a catalyst for research works, the IREC publishe...

Developments in solar technologies are making it possible to effectively exploit solar resources in several regions of Earth, including urban areas and regions with low solar irradiation intensity. Since power and heat are fundamental necessities for all users, f users, photovoltaic/thermal (PVT) technology has emerged as a promising solution for s...

This paper introduces a novel control strategy for regulating the output voltage of a single-phase inverter equipped with an LC filter. The proposed method integrates a Proportional Resonant (PR) controller with an anti-windup compensator to address challenges in voltage regulation and system stability. Unlike conventional techniques, this control...

The need to ‘rethink’ the concept of Distribution, both at the planning and operational levels, arises from the emergence of the Distributed Generation paradigm, mostly installed in LV networks. The existing arrangements for the management, protection and control of distribution networks are typically inadequate for this ever-increasing presence of...

Energy transition strategies point to energy systems that rely mostly on renewable sources, with photovoltaics being the most commonly used and emphasised. The transition from the past to the future of electrical system is characterised by the contrast between centralised and distributed generation, as well as the differences between synchronous ma...

February 2-4 2025, Hammemet Tunisia https://irec-conference.com/ IMPORTANT DATES Extended abstract submission November 30th, 2024 Acceptance notification December 5th, 2024 Registration deadline December 25th, 2024 Full papers submission December 30th, 2024 Full paper acceptance For IEEE publication February 10th, 2025 Revised papers and IEE...

The evolving landscape of Floating Photovoltaic (FPV) systems is marked by ongoing advancements, particularly in the refinement of floating structures and the arrangement of photovoltaic modules. Furthermore, the increasing adoption of bifacial PV modules, attributed to their capacity for heightened production densities, underscores a notable trend...

Current climate warming drives efforts to reduce the impacts of energy production on the global climate and to study the effects of climate on power systems with increasingly refined models. Several studies analyze and model the temperature trends of network elements such as transmission lines and transformers. However, most of these studies are de...

In the context of offshore floating photovoltaic systems (FPVs), this paper explores the use of bifacial photovoltaic modules installed in the vertical position. The energy harvested from the rear face of vertically configured bifacial PV modules compensates for the reduced production at the front face of the module, and this demonstrates the poten...

In recent times, the escalating global demand for sustainable and renewable energy sources has catalyzed the exploration and development of innovative technologies, among which floating photovoltaic (FPV) systems emerge as a particularly promising solution. These systems exploit solar energy by deploying PV panels on water surfaces. These systems,...

Energy and water scarcity are increasingly global challenges that should be addressed collaboratively. Accordingly, floating photovoltaic systems (FPV), which are mounted on the water's surface, are gaining global acceptance. This system offers several unique benefits over land-based ones, including land preservation, water saving, and enhancing sy...

This study systematically explores and compares the performance of various artificial-intelligence (AI)-based models to predict the electrical and thermal efficiency of photovoltaic–thermal systems (PVTs) cooled by nanofluids. Employing extreme gradient boosting (XGB), extra tree regression (ETR), and k-nearest-neighbor (KNN) regression models, the...

Bifacial PV modules are progressively used in a multitude of fields like as building integrated or applied photovoltaic, agrivoltaic systems, and on-field PV plants. The assessment of the power increase generated by bifacial photovoltaic (bPV) modules is essential for the design of installation based on this technology. However, experimental data o...

The main problems of the non-programmable generation proliferation, mainly photovoltaic, are related to the angle and frequency stability of the power system. Therefore, new rules to make distributed generation participate in network stability are needed. Consequently, national and international grid codes have been updated requiring distributed ge...

An agrivoltaic (APV) plant is a complex system, where solar photovoltaic (PV) energy generation is concomitant with agricultural production. The performances associated with these activities could be antagonistic as the presence of PV installation might reduce the favorable conditions for agriculture and vice versa. In this context, vertical bifaci...

Climate and climate change can impact present and future energy production and demand. In light of this issue, this paper conducts climatological analyses focused on the following meteorological quantities: shortwave downward irradiance (SDI), precipitation (Pr), relative humidity (RH), air temperature (Ta), 10 m wind speed (v10), and diurnal tempe...

Floating Photovoltaic (FPV) modules are installed on water surface to reduce land use. This original solution, potentially deployable on hydropower and aquaculture basins as well, can benefit of enhanced cooling due to the proximity to water. Thanks to this natural effect, FPV modules can work at higher operating efficiencies than ground-based (GPV...

In this paper, a new optimizer is presented to quickly and accurately identify parameters of the photovoltaic (PV) module/string models. This optimizer is named Nested Loop Biogeography-based Optimization - Differential Evolution referred to as (NLBBODE). It has been developed to identify the PV parameters with reasonable computational effort and m...

Conventional power plants based on synchronous generators are being replaced with renewable energy sources, consequently increasing the proportion of inverterbased resources in the system. In this context, the total grid inertia is decreasing and system services that were traditionally delivered by synchronous generator need to be provided by inver...

Currently, European national power systems are facing operational challenges due to an increasingly intermittent supply of electricity given by the growing penetration of renewable plants and the current energy price crisis. As a consequence, cross-border cooperations are becoming increasingly important. For this cooperation to be implemented, it i...

In this study, the effectiveness of the machine learning model for predicting the electrical power output of PVT system is evaluated. Specifically, a K-Nearest Neighbor (K-NN) method is explored, using various hyper-parameters and char-acteristics. In this study, machine learning techniques are used to simulate the electrical performance of PVT sys...

Currently, photovoltaic technology (PV) is moving towards technologies that improve the yields for a given resource, such as PV bifacial modules. The behavior and the measured data are not as widespread as mono-facial technology. Integration of bifacial photovoltaic modules into a building with natural ventilated façade may represent a step forward...

Compared to the photovoltaic (PV) module, which only produces electricity, the photovoltaic/thermal (PV/T) system presents as a promising technology capable of simultaneously producing electrical and thermal energy. In addition, this technology considerably improves the photovoltaic efficiency by cooling the PV cells sensitive to the increase in te...

Photovoltaic/thermal unit (PV/T) is an innovative technology that allows the renewable energy production by cogenerating electricity and heat simultaneously. This technology is seemed promising for the energy supply in many applications, especially for building envelope. In the present work, the performances of two different PV/T solar plants with...

This paper presents a numerical study of a photovoltaic thermal plant that uses coolant fluid water nanofluids. The thermal properties of several investigated water nanofluids are derived from literature data. In particular, Al2O3–water (2–4% particle volume fraction) and TiO2–water (2–6% particle volume fraction) are investigated in this study. Th...

An efficient option to transform solar radiation into electrical and heat energies simultaneously is the utilization of hybrid photovoltaic thermal solar collectors (PV/T). A temperature decrease in the photovoltaic cells in the PV/T manifold can be achieved using nanofluids. In the present work, a finite difference numerical model of nanofluid-bas...

The degradation trend of photovoltaic modules depends on the technology, manufacturing techniques and climatic conditions of the site where they are installed. Longer useful life of the PV modules means that they will be able to produce much more energy than was used to build them; thus, extending the useful life of the modules is beneficial for th...

The increasing presence of non-programmable renewable energy plants increases the intermittency of the electricity supply and thus threatens the adequacy of a power system. Hydropower can solve this problem due to its flexibility. This paper applies statistical approaches to assess water availability in the context of hydropower generation and adeq...

The need to replace fossil energy sources with renewable energy sources to combat global warming has prompted the growth and development of various technologies, including photovoltaics. At the same time the PV technology is evolving to enhance efficiency and durability of PV modules. Bifacial PV modules is gaining larger share of market due to the...

Solar energy is growing rapidly thanks to reduced implementation costs; European development plans foresee a significant increase in installed capacity in the coming years. In this scenario, new identifiable areas on water surfaces are needed. This would lead to the development of floating photovoltaic (FPV) systems, which would mitigate the enviro...

Reducing carbon dioxide emissions caused by the production of electrical energy has made the decommissioning of coal-fired power plants a priority. The decommissioned fossil-fueled power plants are therefore being replaced by renewable energy sources (RES) plants and other technologies useful to energy transition, such as storage power plants. Howe...

The demand for electrical energy is constantly growing. Power generation from renewable sources will play a role in meeting the electricity demand. Floating photovoltaics is a solution that still needs to be explored in the design and construction phases. The floating system has important characteristics: it reduces evaporation of water and algae g...

Reliability and safety must be carefully considered in today’s power systems, which are rapidly evolving toward ever higher penetration of renewable, inverter-based generation units. Power systems are constantly stressed by active power disturbances, which can be exacerbated by wind and solar systems that are subject to rapid fluctuations in primar...

In floating photovoltaics, modules are mounted on or above water surfaces in order to limit the land occupancy, an issue arising with the growing deployment of photovoltaics. The floating structures are also expected to lower the capital expenditures required by traditional in-land systems, thanks to the lack of major site preparation needs and to...

To reach the EU 2030 goals for reducing greenhouse gas emissions targets and achieving high-performing buildings, it is mandatory to increase energy generation through renewable sources. In this context, existing and new buildings should be equipped with building-integrated photovoltaic plants (BiPV). However, BiPV system integration into the build...

To address the increasing demand for ancillary services, new demand response strategies (DR) are being developed that involve the building sector to provide flexibility to the transmission system operator (TSO). In this respect, commercial buildings have great potential to become key players in providing flexibility to the TSO by changing their loa...

Floating photovoltaic systems (FPV) are an innovative technology, in which photovoltaic modules are installed on water surfaces with the aim of reducing land occupation and at the same time increasing its efficiency and creating synergies with aquaculture and hydroelectric plants. The purpose of this study is to evaluate the energy performance on a...

The thermal regulation of the floating photovoltaic (FPV) system increases its electrical potential. In this study, a partially floating photovoltaic (PFPV) system was examined by submerging a portion of the FPV module to realize excess heat release. An appropriate MATLAB/Simulink model was constructed for a comparative study of three FPV configura...

The transition to clean energies is a major environmental and economic issue. The transformation of solar irradiance into electrical energy appears to be one of the most promising solutions thanks to its simplicity of implementation and its worldwide availability. However, the lifespan of solar cells and their efficiency remain open research issues...

Roundabouts have become a common type of intersection design in many countries. The area of the center island can be used to install a photovoltaic system to power local loads such as lighting systems. The objective of this study is to evaluate the degree of self-sufficiency that a roundabout can achieve depending on the availability of the area fo...

Precise and fast identification of the photovoltaic model parameters plays a crucial role in many model-based design issues. It is the cornerstone of PV system simulation, control, and fault diagnosis. In this paper, a new optimizer is proposed to deal successfully with the difficulties of the PV modeling with considerable accuracy, reliability, an...

In the last year, a continuous deeply increase in energy demands for cooling purposes is observed. Such energy needs are mainly satisfied through conventional vapour compressor chiller (VCC), which foresee the use of electricity usually generated through conventional energy sources. As an alternative, solar cooling plants offer a reliable and envir...

The floating photovoltaic (FPV) is characterized by the possibility to keep the PV cell at a reduced temperature compared to Land-Based Photovoltaic (LBPV) but this reduction is not so large. However, in hot climate, the working temperature of the FPV could rise enough to act negatively on the productivity. The present article focuses on assessing...

The transition to clean energies is a major environmental and economic issue. The transformation of solar irradiance into electrical energy appears to be one of the most promising solutions thanks to its simplicity of implementation and its worldwide availability. However, the lifespan of solar cells and their effciency remain open research issues....

The accurate forecast of the photovoltaic generation (PVG) process is essential to develop optimum installation sizing and pragmatic energy planning and management. This paper proposes a PVG forecast model for a PVG/ Battery installation. The forecasting strategy is built on a Medium-Term Energy Forecasting (MTEF) approach refined dynamically every...

Climate change due to the greenhouse effect will affect meteorological variables, which in turn will affect the demand for electrical energy and its generation in coming years. These impacts will become increasingly important in accordance with the increasing penetration of renewable, non-programmable energy sources (e.g., wind and solar). Specific...

Power systems are rapidly evolving to face the increasing penetration of renewable inverter-based generation units and to improve their reliability and safety. A power system is constantly exposed to sudden changes or disturbances that may affect its stability. In this paper, a comparative analysis of solutions to improve transient stability, both...

Well estimating the electrical model parameters of the photovoltaic (PV) module/string serves to develop an accurate simulator and a fault diagnosis tool. Several based evolutionary techniques were proposed to identify the unknown circuit equivalent PV generator (PVG) parameters. Whereas most of them have not been examined to various real operating...

Solar Cooling plants offer a reliable and environmentally friendly alternative to conventional electrically powered chillers for satisfying the building cooling demand. Although many types of research have analysed the performances of heat-driven chillers, these systems need to further detailed studies to highlight their potential for satisfying th...

In the current era, Artificial Intelligence (AI) is becoming increasingly pervasive with applications in several applicative fields effectively changing our daily life. In this scenario, machine learning (ML), a subset of AI techniques, provides machines with the ability to programmatically learn from data to model a system while adapting to new si...

Recently increasing attention has been paid on photovoltaic/thermal (PV/T) solar systems as these systems allow to generate heat and electricity simultaneously. Thermal and electrical performance of PV/T modules are coupled, so it is crucial to monitor both efficiencies to decide the optimal operating point. In this context, this paper aims to inve...

This research aims to evaluate the energy yields of a water-based Photovoltaic/thermal solar plant integrated into the building envelope, considering different façades orientations. A typical residential building unit, located in the Mediterranean area, is used for carrying out dynamic analysis through the TRNSYS software. The first step of this st...

The PV/T is called as a hybrid bi-fluid type solar collector when both fluids (water and air) are used as working fluids. This type of collector provide a wide range of thermal applications and several modes can be executed depending on energy needs and applications: air mode, water mode and simultaneous mode (air and water). This paper presents a...

In recent years the installation of photovoltaic modules integrated into the building envelope, namely Building Integrated Photovoltaic (BIPV) systems, are having an increasing diffusion. As they allow to locally produce renewable energy as well as replacing conventional construction elements providing savings in materials and construction times. B...

There is an increasing interest in Floating PV (FPV) plants thanks to their advantages compared with ground and rooftop PV systems, mainly related to very limited land use, evaporation reduction, and improvement of the energy performance. The PV modules installed on water surfaces have a natural cooling due to the microclimate in which they operate...

Photovoltaic (PV) modules suffer from a reduction of electric conversion due to the high operating temperatures of the PV cells. Hybrid photovoltaic/thermal (PV/T) technology represents an effective solution for cooling the PV cells. This paper discusses a theoretical study on a novel bi-fluid PV/T collector. One dimensional steady-state numerical...

DC/DC converters are widely used in photovoltaic (PV) systems to track the maximum power points (MPP) of a photovoltaic generator (PVG). The variation of solar radiation (G) and PV cells temperature (T) affect the power efficiency of these DC/DC converters because they change the MPP, thus a sizing adaptation of the component values in these DC/DC...

A new method for the estimation of the five parameters of two-diode PV model is presented in this paper. This method allows obtaining dynamic series and shunt resistances versus climatic condition changes. Compared with five parameter estimation method based on STC condition, this method shows to be more effective with the variation of the irradian...

To limit climate change, the use of renewable energy is mandatory. PV/T systems generate renewable energy, simultaneously satisfy both the thermal and electrical energy requests. Usually, these systems have some limitations to fulfill the thermal energy needs; therefore, it is necessary to improve their efficiency with the aim to increase the entha...

Hydrogen production from water electrolysis process is used worldwide as an alternative to conventional fuels. Using photovoltaic thermal system (PV/T) for electrolysis energy supply could be an attractive and innovative option. The PV/T systems are a genuine power production technology, providing simultaneously electricity and heat. In this paper,...

A hybrid photovoltaic/thermal collector (PV/T) is used to produce simultaneously electrical and thermal energy from absorbed solar irradiation. The research to date has tended to focus on either bi-fluids (water and air) as the working fluid to supply energy needs for different applications. The purpose of this work is to test the performances of P...

The electrical systems are moving very rapidly to small/medium size distributed generation and storage system with the main goal to improve the level of energy self-sufficiency, with a drastic change of the user model from passive to active (prosumers). The prosumers will group themselves at the level of nano and micro smart grids. In this context...

Floating Photovoltaic (FPV) is an emerging technology that has experienced significant growth in the renewable energy market since 2016. It is estimated that technical improvements along with governmental initiatives will promote the growth rate of this technology over 31% in 2024. This study comprehensively reviews the floating photovoltaic (FPV)...

The aim of this study is to create usable commercial simulation software tools for photovoltaic (PV) systems even in the case of floating applications. Using the experimental data of a plant installed at the “Enel Innovation Lab” in Catania (IT), adequate heat exchange coefficients of the software’s thermal models were found, which allowed us to ta...

This book includes papers presented at the Second International Conference on Electronic Engineering and Renewable Energy (ICEERE 2020), which focus on the application of artificial intelligence techniques, emerging technology and the Internet of things in electrical and renewable energy systems, including hybrid systems, micro-grids, networking, s...

The photovoltaic (PV) sector has grown significantly in recent years, representing a considerable proportion of global renewable energy sources. The main goal for owners, operators, investors, and stakeholders for already built PV systems is to ensure that a PV system generates energy accurately as predicted for a longer life cycle. Low efficiency...