Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 115 for “"Off-grid"”.
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Ultracapacitors for off grid wind power systems
… present a challenge to the electrical power grid. Such a design allows ultracapacitors to charge in matter of minutes and not hours. This innovation would create a significant impact on electronic items such as computers, smartphones and tablets. In addition, it would revolutionize the …
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Small-scale thermoelectric generator for off-grid power
The goal of this research is to develop a small-scale energy resource that can be used by the survivors of a natural disaster event who are left without power. The desired energy resource is intended for low power applications (e.g. trickle charge of electronic devices such as mobile phones), …
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Nanophotonics-enabled Solar Membrane Distillation for Off-grid Water Purification
With more than a billion people lacking accessible drinking water, there is a critical need to convert non-potable sources such as seawater to water suitable for human use. However, energy requirements of desalination plants account for half their operating costs, so alternative, lower-energy …
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Developing a PV and Energy Storage Sizing Methodology for Off-Grid Communities
Combining rooftop solar with energy storage for off-grid residential operation is restrictively expensive. Historically, operating off-grid requires an 'isolated self-consumption' operating strategy where any excess generation is wasted and to ensure reliability you must install costly, polluting …
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Life cycle assessment of off-grid lighting applications : kerosene vs. solar lanterns
Access to electricity in developing countries is minimal and if available, often unreliable. As a result, fuel-based kerosene lighting is the most common solution to lighting necessities. However, kerosene combustion affects indoor air quality and relies on a non-renewable fossil fuel subject to …
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Optimization of Small Grid-tied and Off-grid PV Systems with Energy Management
<p>Global environmental concerns, rising grid electricity cost and the increasing need for energy have opened new opportunities for the integration of photovoltaics (PV) into the grid. As a result there is need to better understand how to optimize grid tied PV systems in no-net metering situations …
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The use of small photovoltaic systems for the electrification of off-grid homes
… minimal electrical requirements in low-income off-grid households. A comprehensive review of the literature on photovoltaic technology was undertaken to identify key theoretical parameters and issues, and also to determine what the experience has been of similar applications in third world …
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Planning and optimization of nuclear-renewable micro hybrid energy systems for off-grid applications
Resilient operation of medium/large scale off-grid energy systems is a key challenge for energy crisis solutions, which requires continuous and sustainable energy resources. In this context, microreactors are incorporated with renewables to provide a continuous, reliable, and sustainable energy …
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Bringing photodegradation of plastic waste into the “green age” through off-grid sustainable energy
… available we present our prototypes of an off grid photoreactor. The photo-oxidation results gathered in the study will not only prove that these green methods are practical but also act as the first step for introducing a more sustainable form of photodegradation for polymers, which is not …
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Rural Electrification Policy and Off Grid Solar: Sector Engagement Strategies in India and Beyond
… programmes and its well-developed off grid solar market, the thesis then takes India as a case study and explores on two of its off grid solar programmes: the Decentralized Distributed Generation Scheme and the off grid component of the Jawaharlal Nehru National Solar Mission. In …
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Time-variant solar-powered electrodialysis reversal desalination for affordable off-grid clean water supply
… wastage and energy consumption compared to on-grid reverse osmosis (RO) plants currently commercialized. Moreover, PV-powered systems can supply water in off-grid locations where on-grid systems cannot be installed, at no environmental cost. However, the levelized cost of water achieved by …
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Decision aiding in off-grid electrification projects: the role of uncertainty acknowledgement and objectives alignment
Most completed South African off-grid electrification projects have failed to contribute significantly to the sustainable development of the communities they supply. The hypothesis of this research is that the root causes of these failures can often be found in the pre-implementation decision …
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Energy system development in Africa : the case of grid and off-grid power in Kenya
… faced by consumers in choosing between grid and off-grid power options. Examination of this challenge leads to the hypothesis that competition between the grid and off-grid markets is contributing to the low growth in power consumption and that there is the potential for off-grid to …
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A comparative analysis of off-grid photovoltaic (PV) systems & businesses performance in The Gambia and Kenya
This thesis addresses a critical challenge in the off-grid energy sector of the Developing World, aiming to uncover the root causes of the frequent failures of solar photovoltaic energy systems(PVESs) and related businesses in off-grid rural communities (OGRCs) (Bhattacharyya, 2013;Onasanya, 2017). …
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Gateway to energy democracy and access in India using off-grid solar home systems and PayGo platform
… background and context and proposes the use of off-grid solar home lighting systems (SHS) using Pay-as- you-Go (PayGo) technology and using Energy-as-a-Service (EaaS) business model as a viable solution. This is a sustainable, equitable and inclusive solution with the potential to empower and …
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Structural and aesthetic design applications of flexible, thin-film solar cells to power off-grid tensile structures
… source. Particularly, this research focuses on off-grid architecture with non-rigid roofing structures where fossil fuels are currently used as the primary energy source. Through design research and stakeholder interviews, a key insight that was uncovered was the opportunity to integrate …
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Kettlectric and myGen : portable, thermoelectric-based power generation systems for off-grid home use and the village entrepreneur
… investigates such application for small-scale, off-grid power generation. Several systems were prototyped that are capable of generating electricity as a by-product of cooking. Kettlectric was the first developed and is based on a kettle design. It can produce 1.8 watts of peak power (Wp) and is …
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Design of a small-scale and off-grid water desalination system using solar thermal heating and mechanical vapor compression
… and plumbing. In this work, a small-scale and off-grid water purification system is proposed. The system utilizes solar energy through both solar thermal collection to rapidly heat up water and solar photovoltaics (PV) to power a mechanical vapor compression system, and is designed for low-cost …
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Exploring the adoption rationales and effects of off-grid renewable energy access for African youth: a case study from Tanzania
… Tanzanians have no access to the national power grid. Instead they rely on biomass and kerosene lamps to provide energy in their homes. In addition, rural youth in Tanzania have limited occupational pursuits other than subsistence farming (both formal and informal). Utilizing a case study …
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