Influence of increased temperature on energy production of roof integrated PV panels

Poulek, V.; Matuška, Tomáš; Libra, Martin; Kachalouski, E.; Sedláček, Jan

doi:10.1016/j.enbuild.2018.01.063

Cited by 58 publications

(32 citation statements)

References 27 publications

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“…Furthermore, renewable energy sources, such as collectors, photovoltaic cells, or heat pumps, are increasingly used. The installation of photovoltaic panels mounted on the roofs or nearby buildings is gaining popularity among individual users; hence, many new solutions have appeared on the market, and numerous works on this subject can be found in the literature [18,19]. Similarly, heat pumps, as an increasingly common alternative to conventional heating sources for buildings, have been the subject of many studies [20].…”

Section: Methods To Improve Energy Efficiency and Reduce Demand In Bumentioning

confidence: 99%

Energy Monitoring in a Heating and Cooling System in a Building Based on the Example of the Turówka Hotel

Borowski

Mazur²,

Kleszcz

et al. 2020

Energies

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The energy consumption of buildings is very important for both economic and environmental reasons. Newly built buildings are characterized by higher insulation and airtightness of the building envelope, and are additionally equipped with technologies that minimize energy consumption in order to meet legal requirements. In existing buildings, the modernization process should be properly planned, taking into account available technologies and implementation possibilities. Hotel buildings are characterized by a large variability of energy demand, both on a daily and a yearly basis. Monitoring systems, therefore, provide the necessary information needed for proper energy management in the building. This article presents an energy analysis of the Turówka hotel located in Wieliczka (southern Poland). The historical hotel facility is being modernized as part of the project to adapt the building to the requirements of a sustainable building. The modernization proposal includes a trigeneration system with a multifunctional reverse regenerator and control module using neural algorithms. The main purpose is to improve the energy efficiency of the building and adapt it to the requirements of low-energy buildings. The implementation of a monitoring system enables energy consumption to be reduced and improves the energy performance of the building, especially through using energy management systems and control modules. The proposed retrofit solution considers the high energy consumption, structure of the energy demand, and limits of retrofit intervention on façades.Energies 2020, 13, 1968 2 of 20 buildings. This negative trend may be halted by using renewable energy sources and new solutions with higher efficiency. The effects achieved in this way are not only beneficial to the environment, but, above all, to the consumer, whose operating costs are significantly reduced. The simplest solution to save energy would be to design a building using materials with low thermal conductivity and high-efficiency heating and/or cooling technology.Both environmental and economic factors have led European Union (EU) regulators to introduce a definition for "nearly Zero-Energy Buildings", hereinafter referred to as "sustainable buildings". Pursuant to the Directive of the European Parliament [4], they are buildings with low demand for heating, cooling, and electricity, which should be covered to a very significant extent by energy from renewable sources. The document [4] does not include the exact values of the coefficients to be met by a building, as these are defined by each Member State. The National Plan for increasing the number of low-energy buildings [5] extends this definition, stating that such a building meets the energy saving and thermal insulation requirements as defined in technical and building regulations.Referring to the Regulation of the Minister of Infrastructure, buildings should correspond to at least the optimum energy performance for new buildings, in force since January 2019 for buildings occupied and owned by pu...

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Section: Methods To Improve Energy Efficiency and Reduce Demand In Bumentioning

confidence: 99%

Energy Monitoring in a Heating and Cooling System in a Building Based on the Example of the Turówka Hotel

Borowski

Mazur²,

Kleszcz

et al. 2020

Energies

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show abstract

“…However, energy production could also be affected by the mounting structure, where free-standing photovoltaic systems could generate up to 5% more annual energy than roof-integrated photovoltaic systems in hot climates. In cold, moderate, and warm climates, the annual energy may be reduced from 3% to 4% [63]. Therefore, this lost energy should be also taken into account when photovoltaic systems are designed, as olive mills usually provide large spaces on the roofs and yards where photovoltaic systems could be installed.…”

Section: The Photovoltaic Generation Profilementioning

confidence: 99%

Impacts of Array Orientation and Tilt Angles for Photovoltaic Self-Sufficiency and Self-Consumption Indices in Olive Mills in Spain

et al. 2020

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Olive mills are extensive in the Mediterranean Basin, and Spain constitutes approximately 45% of global production. The industrial sector faces a new energetic paradigm where distributed generation provided by small renewable energy sources may reduce the dependence from fossil energy sources as well as avoid energy distribution losses. Photovoltaic self-consumption systems can play an important role in confronting this challenge due to their modularity and their decreasing cost. Most of self-sufficiency energy studies are focused on building sector and discussions about the idiosyncrasy of industrial load profiles, and their matching capability with photovoltaic generation profiles can be scarcely found. This work analyzes the potential of photovoltaic self-consumption systems as a function of the array power, array tilt, and orientation angles to face the electric consumption in olive mills. Different recording intervals and reporting periods are considered. Results show that a self-sufficiency index of 40% may be achieved on olive harvest basis. Moreover, due to the load profile particularities, percentage error lower than 1.6% has been found when considering a recording interval of 60 min when matching the olive load consumption and photovoltaic generation profiles. Chosen array tilt and orientation angles may be key parameters to maximize the self-sufficiency index.

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“…The characteristics of the simulated modules in this study are described in Table 3. The specifications given in Table 3 are specific to standard temperature conditions (25 • C) and the increase in temperature reduces the efficiency of the photovoltaic module [55,56]. The effect of temperature on the output power of the PV module is modeled by coefficients µIsc and µVoc.…”

Section: Simulation Of the Effect Of Grid-connected Photovoltaic Resomentioning

confidence: 99%

A Fuzzy-SOM Method for Fraud Detection in Power Distribution Networks with High Penetration of Roof-Top Grid-Connected PV

et al. 2020

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This study proposes a fuzzy self-organized neural networks (SOM) model for detecting fraud by domestic customers, the major cause of non-technical losses in power distribution networks. Using a bottom-up approach, normal behavior patterns of household loads with and without photovoltaic (PV) sources are determined as normal behavior. Customers suspected of energy theft are distinguished by calculating the anomaly index of each subscriber. The bottom-up method used is validated using measurement data of a real network. The performance of the algorithm in detecting fraud in old electromagnetic meters is evaluated and verified. Types of energy theft methods are introduced in smart meters. The proposed algorithm is tested and evaluated to detect fraud in smart meters also.

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Influence of increased temperature on energy production of roof integrated PV panels

Cited by 58 publications

References 27 publications

Energy Monitoring in a Heating and Cooling System in a Building Based on the Example of the Turówka Hotel

Energy Monitoring in a Heating and Cooling System in a Building Based on the Example of the Turówka Hotel

Impacts of Array Orientation and Tilt Angles for Photovoltaic Self-Sufficiency and Self-Consumption Indices in Olive Mills in Spain

A Fuzzy-SOM Method for Fraud Detection in Power Distribution Networks with High Penetration of Roof-Top Grid-Connected PV

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