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726 Results Found

  • Article
  • Open Access
17 Citations
4,211 Views
17 Pages

A Methodology for Buildings Access to Solar Radiation in Sustainable Cities

  • L. M. Fernández-Ahumada,
  • J. Ramírez-Faz,
  • R. López-Luque,
  • A. Márquez-García and
  • M. Varo-Martínez

22 November 2019

The growing need to improve the environmental and energy sustainability of buildings involves the use of solar radiation incident on their surfaces. However, in cities, this task is complicated due to the constructive geometry that leads to shading b...

  • Article
  • Open Access
9 Citations
3,102 Views
26 Pages

Identifying Potential Indicators of Neighbourhood Solar Access in Urban Planning

  • Agnieszka Czachura,
  • Niko Gentile,
  • Jouri Kanters and
  • Maria Wall

30 September 2022

Solar access describes the capacity of urban spaces to receive sunlight and daylight. Rapid urbanization and unbridled densification pose a threat to sustainable solar access, reducing the penetration of sunlight and daylight into cities. To effectiv...

  • Article
  • Open Access
13 Citations
6,971 Views
12 Pages

6 October 2016

The urban canyon model has been recurrently used as a basis for many solar access studies. However, its conception as endless structures disregards the effect of street intersections, despite being characteristic elements of urban fabrics. This paper...

  • Article
  • Open Access
1 Citations
2,319 Views
14 Pages

30 March 2023

In this study, we developed a 3D-model-based technology that can evaluate solar access by analyzing solar radiation and shade to find the optimal location for a solar system. We developed an algorithm that can quickly calculate viewshed by applying r...

  • Article
  • Open Access
1 Citations
2,205 Views
21 Pages

Countermeasuring MITM Attacks in Solar-Powered PON-Based FiWi Access Networks

  • Polyxeni Tsompanoglou,
  • Antonios Iliadis,
  • Konstantinos Kantelis,
  • Sophia Petridou and
  • Petros Nicopolitidis

20 February 2023

Solar power (SP) passive optical network (PON)-based fiber-wireless (FiWi) access systems are becoming increasingly popular as they provide coverage to rural and urban areas where no power grid exists. Secure operation of such networks which includes...

  • Article
  • Open Access
3 Citations
1,966 Views
15 Pages

5 December 2024

Due to climate change, enhancing outdoor and indoor thermal comfort is increasingly important. Solar radiation drives temperature increases, making solar exposure reduction essential in urban design. Most previous research has focused on parametric a...

  • Article
  • Open Access
7 Citations
1,833 Views
29 Pages

29 May 2024

Solar energy reaching a horizontal surface can possess fluctuations that impact electricity generation at a solar plant. Despite this, energy access remains inadequate, particularly in rural areas, with an estimated 82% deficiency. This drives us to...

  • Article
  • Open Access
21 Citations
7,292 Views
14 Pages

16 July 2017

Wind and solar energy resources are an increasingly large fraction of generation in global electricity systems. However, the variability of these resources necessitates new datasets and tools for understanding their economics and integration in elect...

  • Article
  • Open Access
7 Citations
3,954 Views
25 Pages

25 January 2022

Off-grid technologies, such as solar home systems (SHS), offer the opportunity to alleviate global energy poverty, providing a cost-effective alternative to an electricity grid connection. However, there is a paucity of high-quality SHS electricity u...

  • Article
  • Open Access
11 Citations
7,061 Views
13 Pages

4 March 2020

As satellite communications provide ubiquitous coverage, they play a key role in providing Internet connectivity in remote or marginalized areas, so as to enable the vision of a truly global connectivity of the Internet of Things (IoT). However, thes...

  • Feature Paper
  • Review
  • Open Access
22 Citations
5,547 Views
22 Pages

Solar Performance Metrics in Urban Planning: A Review and Taxonomy

  • Agnieszka Czachura,
  • Jouri Kanters,
  • Niko Gentile and
  • Maria Wall

Metrics are instrumental in design assessments. Solar performance metrics help designers to evaluate solar access in cities. Metrics should be used early in the urban planning stages in order to enable sustainable urban development with greater acces...

  • Article
  • Open Access
8 Citations
6,328 Views
32 Pages

Moving Up the Electrification Ladder in Off-Grid Settlements with Rooftop Solar Microgrids

  • Isabelo Rabuya,
  • Melissa Libres,
  • Michael Lochinvar Abundo and
  • Evelyn Taboada

11 June 2021

The multi-tier framework (MTF) of electricity access defines a continuum of electrification from tier 0, where access is inexistent or very limited, to tier 5 where access is of grid quality. Transitioning households from lower to higher tiers unlock...

  • Article
  • Open Access
19 Citations
11,631 Views
29 Pages

24 June 2022

Despite South Africa’s international recognition in solar energy investments, the country is struggling to meet its growing energy needs. In recent years, national blackouts and load shedding have been a recurring experience in the country. The...

  • Article
  • Open Access
9 Citations
4,939 Views
19 Pages

27 May 2021

3D city models are a useful tool to analyze the solar potential of neighborhoods and cities. These models are built from buildings footprints and elevation measurements. Footprints are widely available, but elevation datasets remain expensive and tim...

  • Article
  • Open Access
18 Citations
6,009 Views
25 Pages

Solar home systems (SHS), a cost-effective solution for rural communities far from the grid in developing countries, are small solar panels and associated equipment that provides power to a single household. A crucial resource for targeting further i...

  • Article
  • Open Access
20 Citations
7,698 Views
11 Pages

Solar Energy as a Form Giver for Future Cities

  • Alessandra Curreli,
  • Glòria Serra-Coch,
  • Antonio Isalgue,
  • Isabel Crespo and
  • Helena Coch

14 July 2016

Energy is considered as a main influence on urban configurations. However, there is a difficulty on translating the city models based on theoretical renewable energy concepts into practical applications. This study considers the possibility of unders...

  • Review
  • Open Access
15 Citations
6,803 Views
18 Pages

The Role of Off-Grid Houses in the Energy Transition with a Case Study in the Netherlands

  • Diego F. Quintero Pulido,
  • Marnix V. Ten Kortenaar,
  • Johann L. Hurink and
  • Gerard J.M. Smit

27 May 2019

Off-grid houses can be considered an important concept to increase the access to electricity throughout the world. Although there are quite some initiatives in place to improve the access to electricity, the implementation rate of practical solutions...

  • Data Descriptor
  • Open Access
648 Views
18 Pages

Digital Accessibility of Solar Energy Variability Through Short-Term Measurements: Data Descriptor

  • Fernando Venâncio Mucomole,
  • Carlos Augusto Santos Silva and
  • Lourenço Lázaro Magaia

28 September 2025

A variety of factors, such as absorption, reflection, and attenuation by atmospheric elements, influence the quantity of solar energy that reaches the surface of the Earth. This, in turn, impacts photovoltaic (PV) power generation. In light of this,...

  • Article
  • Open Access
17 Citations
3,857 Views
21 Pages

Techno-Economic Optimization of Mini-Grid Systems in Nigeria: A Case Study of a PV–Battery–Diesel Hybrid System

  • Hillary Iruka Elegeonye,
  • Abdulhameed Babatunde Owolabi,
  • Olayinka Soledayo Ohunakin,
  • Abdulfatai Olatunji Yakub,
  • Abdullahi Yahaya,
  • Noel Ngando Same,
  • Dongjun Suh and
  • Jeung-Soo Huh

11 June 2023

This paper presents a feasibility analysis of the technical, environmental, and economic sustainability of an existing mini-grid technology system in Nigeria. The study investigates the cost and other operational parameters of the Gbamu-Gbamu solar&n...

  • Article
  • Open Access
5 Citations
2,451 Views
18 Pages

14 April 2023

To satisfy the continuously high energy consumption and high computational capacity requirements for IoT applications, such as video monitoring, we integrate solar harvesting and multi-access edge computing (MEC) technologies to develop a solar-power...

  • Review
  • Open Access
18 Citations
7,574 Views
23 Pages

10 March 2021

The electrification of isolated homes in rural areas without access to the electric grid has been achieved in part using solar energy transformed into electricity through Photovoltaic (PV) equipment known as Solar Home Systems (SHSs), which has been...

  • Article
  • Open Access
6 Citations
3,668 Views
14 Pages

8 March 2021

With the increasing share of distributed energy resources on the electric grid, utility companies are facing significant decisions about infrastructure upgrades. An alternative to extensive and capital-intensive upgrades is to offer non-firm intercon...

  • Article
  • Open Access
12 Citations
5,218 Views
14 Pages

11 May 2020

Limited access to clean energy has long been an obstacle to livelihood improvement of populations mired in energy poverty. Cooking with traditional biomass contributes to high levels of indoor air pollution, thus imposing significant threats to publi...

  • Article
  • Open Access
10 Citations
5,114 Views
27 Pages

14 April 2021

Energy access and waste management are two of the most pressing developmental and environmental issues on a global level to help mitigate the accelerating impacts of climate change. They are particularly relevant in Sub–Saharan Africa where electrifi...

  • Article
  • Open Access
9 Citations
3,420 Views
24 Pages

17 December 2020

Ongoing reductions in the costs of solar PV and battery technologies have contributed to an increased use of home energy systems in Sub-Saharan African regions without grid access. However, such systems can normally support only low-power end uses, a...

  • Article
  • Open Access
9 Citations
6,794 Views
37 Pages

Dependability Assessment of a Dual-Axis Solar Tracking Prototype Using a Maintenance-Oriented Metric System

  • Raul Rotar,
  • Flavius Maxim Petcuț,
  • Robert Susany,
  • Flavius Oprițoiu and
  • Mircea Vlăduțiu

This study presents a numerical method for evaluating the maintainability of a dual-axis solar tracking system that can be deployed in residential areas for improved energy production. The purpose of this research manuscript is threefold. It targets...

  • Article
  • Open Access
28 Citations
4,191 Views
24 Pages

2 December 2020

Energy access is critical for health, education and social welfare improvements. In countries like Ethiopia, with a low electrification rate and with the majority of the population located in rural areas, about 76% of primary schools do not have acce...

  • Article
  • Open Access
42 Citations
13,064 Views
24 Pages

Lessons Learned from Rural Electrification Experiences with Third Generation Solar Home Systems in Latin America: Case Studies in Peru, Mexico, and Bolivia

  • Andrea A. Eras-Almeida,
  • Miguel Fernández,
  • Julio Eisman,
  • José G. Martín,
  • Estefanía Caamaño and
  • Miguel A. Egido-Aguilera

13 December 2019

There are 17 million people without access to electricity services in Latin America. This population lives in small isolated and scattered communities with low incomes where it is difficult to achieve 100% access to electricity by the grid extension....

  • Article
  • Open Access
12 Citations
5,756 Views
24 Pages

Transforming Access to Clean Energy Technologies in the Global South: Learning from Lighting Africa in Kenya

  • David Ockwell,
  • Robert Byrne,
  • Joanes Atela,
  • Victoria Chengo,
  • Elsie Onsongo,
  • Jacob Fodio Todd,
  • Victoria Kasprowicz and
  • Adrian Ely

20 July 2021

As SDG7-related interventions seek to transform access to clean energy, this paper presents an analysis of both a previous transformative intervention (Lighting Africa) and a theoretical approach to understanding how such transformations can be achie...

  • Article
  • Open Access
7 Citations
3,461 Views
21 Pages

Accounting for Energy Cost When Designing Energy-Efficient Wireless Access Networks

  • Greta Vallero,
  • Margot Deruyck,
  • Michela Meo and
  • Wout Joseph

9 March 2018

Because of the increase of the data traffic demand, wireless access networks, through which users access telecommunication services, have expanded, in terms of size and of capability and, consequently, in terms of power consumption. Therefore, costs...

  • Article
  • Open Access
3 Citations
2,715 Views
20 Pages

A Novel Evaluation Method of Tunnel Access Zone Luminance Based on Measured Meteorological Data

  • Yuwei Zhang,
  • Peng Xue,
  • Yifan Zhao,
  • Zhikai Ni,
  • Yani Quan,
  • Jingchao Xie and
  • Jiaping Liu

1 February 2023

As the design basis of the tunnel lighting system, tunnel access zone luminance (TAZL) directly affects the energy efficiency of the tunnel lighting system and the driving safety of drivers. Affected by the relative position of the sun, weather condi...

  • Article
  • Open Access
4 Citations
3,060 Views
23 Pages

Impact of Urban Re-Densification on Indoor Lighting Demand and Energy Poverty on the Equator, in the City of Quito

  • Estefanía Montes-Villalva,
  • Lucía Pereira-Ruchansky,
  • Beatriz Piderit-Moreno and
  • Alexis Pérez-Fargallo

23 March 2022

Human wellbeing and their quality of life is linked to daylight. However, this is being hindered by the rapid growth of cities, promoted by regulatory frameworks and the interests of property developers that seek high-rise densification and re-densif...

  • Article
  • Open Access
7 Citations
3,178 Views
14 Pages

28 May 2023

The separation models are tools used in solar engineering to estimate direct normal (DNI) and diffuse horizontal (DHI) solar irradiances from measurements of global solar irradiance (GHI). This paper proposes two empirical separation models that stan...

  • Review
  • Open Access
21 Citations
3,803 Views
46 Pages

11 April 2022

Solar air heater is considered to be the most popular and widely used solar thermal system. Solar air heater (SAH) can be used in many applications, ranging from domestic to industrial purposes. However, it seems that the viability of SAH is not feas...

  • Article
  • Open Access
14 Citations
5,322 Views
21 Pages

How to Make Off-Grid Solar Electric Cooking Cheaper Than Wood-Based Cooking

  • Robert Van Buskirk,
  • Lawrence Kachione,
  • Gilbert Robert,
  • Rachel Kanyerere,
  • Christina Gilbert and
  • James Majoni

16 July 2021

Low-income sub-Saharan Africa (SSA) households rely on wood for cooking for the simple reason that it is the lowest cost cooking fuel. Thus, full attainment of Sustainable Development Goal 7 (SDG7) requires developing clean cooking technologies that...

  • Article
  • Open Access
22 Citations
6,897 Views
26 Pages

Floating PV Systems as an Alternative Power Source: Case Study on Three Representative Islands of Indonesia

  • Ignacio Esparza,
  • Ángela Olábarri Candela,
  • Luofeng Huang,
  • Yifeng Yang,
  • Chayun Budiono,
  • Soegeng Riyadi,
  • Wolter Hetharia,
  • Ridho Hantoro,
  • Dony Setyawan and
  • Zhenhua Luo
  • + 2 authors

5 February 2024

Floating solar renewable energy is of enormous potential in Indonesia. This paper presents a comprehensive study of the design of Floating Photovoltaic (FPV) systems with Battery Energy Storage Systems (BESS) for three islands in Indonesia. These isl...

  • Article
  • Open Access
8 Citations
6,095 Views
34 Pages

Beyond Energy Access: How Renewable Energy Fosters Resilience in Island Communities

  • Ravita D. Prasad,
  • Devesh A. Chand,
  • Semaan S. S. L. Lata and
  • Rayash S. Kumar

27 January 2025

People, communities, and economies in small island developing states are extremely vulnerable to climate change, disasters, and other crises. Renewable energy can play an important part in building the resilience of these communities. Three case stud...

  • Article
  • Open Access
1 Citations
1,722 Views
22 Pages

An Automated Method to Assess the Suitability of Existing Boreholes for Solar-Based Pumping Systems: An Application to Southern Madagascar

  • Fabio Fussi,
  • Víctor Gómez-Escalonilla,
  • Jean-Jacques Rahobisoa,
  • Hariliva Omena Anahy Ramanantsoa and
  • Pedro Martinez-Santos

4 February 2025

Groundwater provides a strategic resource in the face of uncertain climate conditions in arid and semi-arid regions. Solar-based groundwater pumping is quickly gaining ground across rural sub-Saharan Africa, promoted by national and international org...

  • Article
  • Open Access
8 Citations
4,063 Views
15 Pages

6 August 2018

Urban agriculture has become a favored activity in many cities around the world. This study explores how urban agriculture’s potential can be maximized in Seoul, South Korea, a city characterized by high-density residential complexes. It select...

  • Article
  • Open Access
8 Citations
3,668 Views
19 Pages

21 November 2018

The recent provision of energy-harvesting capabilities to wireless sensor networks (WSN) has entailed the redefinition of design objectives. Specifically, the traditional goal of maximizing network lifetime has been replaced by optimizing network per...

  • Article
  • Open Access
26 Citations
8,583 Views
21 Pages

The Impact of an Electrical Mini-grid on the Development of a Rural Community in Kenya

  • AbuBakr Bahaj,
  • Luke Blunden,
  • Christopher Kanani,
  • Patrick James,
  • Isaac Kiva,
  • Zoë Matthews,
  • Heather Price,
  • Hildah Essendi,
  • Jane Falkingham and
  • Gerard George

26 February 2019

Electrical mini-grids can provide electrification to rural communities far from the national network. However the benefits of such schemes are disputed. We observed changes in two matched trading-centres in Makueni County, Kenya, neither of which wer...

  • Feature Paper
  • Review
  • Open Access
31 Citations
7,363 Views
28 Pages

2 September 2020

The common agreement of the United Nation members pushes the 2030 Agenda ahead to alleviate poverty and ensure wellbeing for all, recognizing energy as a crucial pathway to achieving this goal under three core dimensions: human development, sustainab...

  • Proceeding Paper
  • Open Access
1 Citations
2,374 Views
4 Pages

Simulating the Impact of Solar Energy on Pyramid and Stair Urban Blocks

  • Gloria Pignatta,
  • Haniya Javed,
  • Mehrangiz Mastoori,
  • Seyede Najme Sharifi,
  • Naga Venkata Sai Kumar Manapragada and
  • Cinzia Buratti

Developing countries such as Iran are rapidly expanding, putting pressure on non-renewable energy resources. The building sector takes a major share of the total energy consumption of the country and is projected to increase further, resulting in the...

  • Article
  • Open Access
15 Citations
3,021 Views
18 Pages

14 January 2023

The policy decision of extending electric power transmission lines to connect a remote area to a primary grid vs. developing local electricity generation resources must be informed by studies considering both alternatives’ economic and environm...

  • Article
  • Open Access
2 Citations
3,661 Views
19 Pages

An increasing trend towards the installation of photovoltaic (PV) solar energy generation capacity is driven by several factors including the desire for greater energy independence and, especially, the desire to decarbonize industrial economies. Whil...

  • Article
  • Open Access
25 Citations
7,310 Views
11 Pages

13 February 2018

Solar irradiance measurement is a key component in estimating solar irradiation, which is necessary and essential to design sustainable energy systems such as photovoltaic (PV) systems. The measurement is typically done with sophisticated devices des...

  • Article
  • Open Access
1 Citations
2,632 Views
13 Pages

Smartphone Light Sensors as an Innovative Tool for Solar Irradiance Measurements

  • José Luis Di Laccio,
  • Andrés Monetta,
  • Rodrigo Alonso-Suárez,
  • Martín Monteiro and
  • Arturo C. Marti

31 October 2024

In recent years, the teaching of experimental science and engineering has been revolutionized by the integration of smartphone sensors, which are widely used by a large portion of the population. Concurrently, interest in solar energy has surged. Thi...

  • Article
  • Open Access
1 Citations
2,602 Views
16 Pages

18 November 2021

In this paper, a modeling framework to quantify the reduction of potential greenhouse gas (GHG) emissions when using solar-powered Wi-Fi as an internet access point is developed and tested. This framework includes newly developed MATLAB code and the...

  • Article
  • Open Access
14 Citations
9,142 Views
17 Pages

Design and Investigation of an Effective Solar Still Applicable to Remote Islands

  • Alinford Samuel,
  • Josue Brizuela,
  • Keh-Chin Chang and
  • Chun-Tin Lin

23 February 2022

Most remote islands are characterized by small populations, many of whom live under the poverty line, poor geographical accessibility and lack of electricity. As such, the solar still, which has a low capital cost, easy operation and less need of mai...

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