The effect of photovoltaic shading with ideal tilt angle on the energy cost optimization of a building model in European cities

Baghoolizadeh, Mohammadreza; Nadooshan, Afshin Ahmadi; Raisi, Afrasiab; Malekshah, Emad Hasani

doi:10.1016/j.esd.2022.10.016

Cited by 20 publications

(3 citation statements)

References 39 publications

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“…The study found that south-facing PV panels in the northern hemisphere could generate more electricity than eastor west-facing panels and that the difference in output increased as the latitude of the panels increased [21]. Kiviluoma et al [22] found that the angle at which PV panels are tilted can also affect their performance. The study found that tilting PV panels at an angle equal to their latitude maximized the amount of sunlight they could capture and convert into electricity and that this angle varied depending on the location of the panels.…”

Section: Figure 1 the Solar Irradiation Potential Of Turkey And Konyamentioning

confidence: 99%

Analysis of the azimuth angles of a medium-scale PV system in non-ideal positions for roof application

Aksoy

İSPİR

Bakırhan³

2023

MANAS Journal of Engineering

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As energy costs have continued to rise in the last decade, installing photovoltaic (PV) panels on building roofs are becoming increasingly common. In the past, installations were mostly made in the direction of the south, but now the roofs of the buildings facing west, east, and even north are also considered for PV panel installations. In this study, a grid-connected PV system with an installed power of 148 kWp at the Konya Technical University (KTUN) campus is modeled by PVsyst software. The PV systems' performance on building roofs oriented in different geographical directions (north, south, east, and west) with a 30° fixed tilt angle was investigated. In the modeling, the solar irradiation coming to the surfaces of the PV panels, electricity production values, performance ratios, and their economic feasibility were calculated. The highest effective irradiation value on the panel surface was obtained from the system facing south, found as 1964.4 kWh/m². It is 20.77%, 22.87%, and 73.48% higher than the solar irradiation obtained at -90°, +90°, and 180° azimuth angles, respectively. It is concluded that the electricity generation amounts of PV systems highly depend on the azimuth angle. Similarly, the highest annual electricity production was obtained from the system installed in the 0° azimuth angle found as 254.77 MWh. The annual total electricity generation is 19.66%, 22.55%, and 69.41% higher in systems modeled toward the east, west, and north, respectively. Performance ratio, defined as the ratio of radiation coming to the panel surface and the electricity produced, has relative values between 0.843 and 0.862 for four different azimuth angles. Furthermore, as an economic analysis, the Basic Payback Period (BPP) of the projects was found as 6.92 years, 4.08 years, 4.88 years, and 5.00 years for the systems modeled in the north, south, east, and west directions, respectively. It can be concluded that the most suitable orientation is south, and the other two directions, east, and west, can also be considered feasible.

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Section: Figure 1 the Solar Irradiation Potential Of Turkey And Konyamentioning

confidence: 99%

Analysis of the azimuth angles of a medium-scale PV system in non-ideal positions for roof application

Aksoy

İSPİR

Bakırhan³

2023

MANAS Journal of Engineering

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“…The energy optimization of buildings is also a fundamental aspect and this is a topic of continuous research. Baghoolizadeh et al [48] showed 17-34% electricity cost savings by choosing a suitable solar shading and highlighting the role of the tilt angle of PV shading for cities located further away from the equator (distance increases the angle). Rasool et al [49] explored the techno-reliability optimization framework to incorporate the impact of reliability constraints during the operation and planning phase of hybrid renewable energy system, while Reinert et al [50] discuss a method to optimize and assess a sector-coupled, national energy system using dynamic Life Cycle Assessment (LCA).…”

Section: Literature Reviewmentioning

confidence: 99%

Positive Energy Districts: The 10 Replicated Solutions in Maia, Reykjavik, Kifissia, Kladno and Lviv

et al. 2022

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Cities have an undoubted significant role in climate change mitigation. Several cities across the globe have made commitments to sustainability transitions through green strategies. In the recent past, Europe has witnessed a surge in the development of smart cities and advancement towards creating more sustainable cities. At the moment, the concept of Positive Energy Districts (PEDs) further encourages districts and cities to change their business-as-usual ways to be more carbon neutral. This paper looks at the five cities of Maia, Reykjavik, Kifissia, Kladno, and Lviv that are a part of an ongoing Horizon 2020 project. The purpose of the paper was to understand the steps the cities have taken to select the 10 solutions for replication. The information was collected through discussions, interviews and implementation plans developed by each city. It must be highlighted that each city’s circumstances differ in terms of political support, finances, technical expertise, and stakeholders’ interest, and this applies to all world cities when discussing the implementation of new efficient solutions. Cities across Europe and beyond may find themselves in a similar situation, and therefore, this paper also provides a story of the five Fellow Cities as they transition towards PEDs.

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“…Tunisia's arid climate, characterized by high humidity [5] and persistent dust [6], exacerbates the need for regular solar panel maintenance. However, existing solar panel cleaning robots are primarily designed for lower tilt angles [7] and milder climates, rendering them ineffective in Tunisia's demanding environment. To address this challenge, we have developed an innovative solution: The Solar Panel Cleaning Robot based on a Rail System, seamlessly integrated with Internet of Thing (IoT) technology through the use of the Raspberry Pi board.…”

Section: Introductionmentioning

confidence: 99%

Design and Development of an Autonomous Raspberry PI Cleaning Robot For Photovoltaic Panels

Sallem,

Aloui,

Souifi

et al. 2023

E3S Web of Conf.

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This article presents a solution for the cleaning of solar panels using an autonomous robot based on a rail system and designed for highly inclined panels greater than 30 degrees. The accumulation of dirt and dust on solar panels can significantly reduce their performance. Therefore, the choice of designing this rail-based cleaning robot is based on the topographical nature in Tunisia, as well as other North Africa countries. Indeed, the photovoltaic panels inclination are typically between 20 to 35 degrees, unlike in Europe where the inclination varies between 10 to 20 degrees. Additionally, the climate in North African countries is characterized by significant temperature, humidity and dust which necessitates the use of pure water in the cleaning process. The robot is equipped with a rotating brush positioned on a mobile carriage that moves along the rails and move laterally across the panels allowing a thorough cleaning of the solar panel surfaces. We provide a detailed discussion of the robot's design, its movement mechanism, and how it optimizes solar energy production while contributing to environmental sustainability.

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The effect of photovoltaic shading with ideal tilt angle on the energy cost optimization of a building model in European cities

Cited by 20 publications

References 39 publications

Analysis of the azimuth angles of a medium-scale PV system in non-ideal positions for roof application

Analysis of the azimuth angles of a medium-scale PV system in non-ideal positions for roof application

Positive Energy Districts: The 10 Replicated Solutions in Maia, Reykjavik, Kifissia, Kladno and Lviv

Design and Development of an Autonomous Raspberry PI Cleaning Robot For Photovoltaic Panels

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