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Browsing by Subject "Photovoltaic"

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Energy generation

Author: Osburn, L Date: Feb 2009 Current perceptions conjure images of photovoltaic panels and wind turbines when green building or sustainable development is discussed. How energy is used and how it is generated are core components of both green building and sustainable ... Read more
Energy performance analysis for a photovoltaic, diesel, battery hybrid power supply system

Author: Tazvinga, Henerica ; Fore, S Date: Mar 2010 This paper looks at an energy performance analysis for a photovoltaic, diesel, and battery hybrid power supply system. The procedure starts by the identification of the hourly load requirements for a typical target consumer and the concept ... Read more
The field performance of a 558 kWp ground mounted single-axis PV system in Pretoria, South Africa

Author: Roro, Kittessa T ; Basappa Ayanna, Manjunath ; Pratt, Lawrence E ; Lekoloane, Gaoshitwe A ; Klein, Peter ; Koopman, Stephen J Date: Dec 2017 According to a recent Green Tech Media (GTM) publication [Moskowitz, 2017], 23% of all ground-mounted photovoltaic (PV) systems are installed on trackers. Trackers are especially beneficial for commercial and utility scale applications, ... Read more
A guideline for public entities on cost-efficient procurement of PV assets

Author: Bischof-Niemz, Thomas ; Roro, Kittessa T Date: Sep 2015 This paper presents a guideline for public entities on cost-efficient procurement of PV assets. Traditionally, screening of the responses to the request for proposal for the Engineering, Procurement and Construction (EPC) of a photovoltaic ... Read more
A guideline for public entities on cost-efficient procurement of PV assets

Author: Bischof-Niemz, T ; Roro, Kittessa T Date: Sep 2015 Traditionally, when public entities buy an asset under an Engineering, Procurement and Construction (EPC) contract, the screening of the responses to the request for proposals is done in two stages: In a filter stage, all proposals that are ... Read more
Harmonic control strategies of utility-scale photovoltaic inverters

Author: Ajeigbe, OA ; Chowdhury, SP ; Olwal, TO ; Abu-Mahfouz, Adnan MI Date: Sep 2018 Installation of utility-scale photovoltaic power systems (UPVPSs) is continually increasing throughout the world. This leads to increasing number of utility-scale PV inverters (UPVIs) being connected to the grid both at transmission and ... Read more
Integration of renewable energy and energy efficiency into high temperature applications

Author: Roos, T ; Surridge-Talbot, K Date: Oct 2015 Numerous economically important high temperature processes contribute to South African emissions; this is apart from the electricity generation sector which is responsible for half of South African emissions. Some are driven by fossil fuel ... Read more
Investigation into life-cycle costing as a comparative analysis approach of energy systems

Author: Mokheseng, B Date: 31 Aug 2010 Although renewable energy sources have a potentially beneficial role to play as part of South Africa’s energy portfolio, the common belief is that renewable energy technology, especially solar photovoltaic (PV), is not viable for electricity ... Read more
A mini-integrated resource plan for a commercial entity in Gauteng Province: planning for energy autonomous businesses

Author: Senatla, Mamahloko ; Mushwana, Crescent Date: Aug 2017 Distributed renewable energy competitiveness is becoming a reality in most countries resulting in an increase of installed capacity in both developed and developing countries. Mexico, India, Germany, Zambia and South Africa have experienced ... Read more
Modelling photovoltaic power output using machine Learning techniques

Author: May, Siyasanga I ; Pratt, Lawrence E ; Roro, Kittessa T ; Bokoro, P Date: Aug 2022 This work focuses on modelling the power output of multiple PV technologies installed at the outdoor test facility of the Council for Scientific and Industrial Research (CSIR) in Pretoria. Extreme Gradient Boosting (XGB) and Artificial Neural ... Read more
Perovskite solar cells: The new epoch in photovoltaics

Author: Olaleru, SA ; Kirui, JK ; Wamwangi, D ; Roro, Kittessa T ; Mwakikunga, Bonex W Date: Jan 2020 Perovskite-based solar cells (PSC) is the fastest growing solar technology to date since inception in 2009. This technology has revolutionized the photovoltaic (PV) community. While it has taken 15–42 years for traditional PV technologies to ... Read more
Photovoltaic / Diesel / Battery Hybrid Power Supply System

Author: Tazvinga, Henerica ; Hove, T Date: Oct 2010 Many rural areas of developing countries lack supply of electricity due to poor distribution of grid electricity and financial resources to aid grid extension. These countries usually have under capacity in electricity generation with the ... Read more
Potential of hybrid PV systems for rural South Africa: addressing income activities and water supply

Author: Ortiz, B ; Szewczuk, S ; Vetter, M ; Went, J Date: Oct 2009 The national grid and piping extension for providing electricity and water services will certainly in the coming decades not reach rural areas of many African countries. In order to use and manage local energy and water sources, off-grid power ... Read more
A review of planning methodologies used for determination of optimal generation capacity mix: the cases of high shares of PV and wind

Author: Senatla, Mamahloko J ; Bansal, RC Date: Aug 2018 It is undeniable fact that energy systems all over the world are at the point of paradigm shift as a need for decarbonisation is eminent and unavoidable. The pressure to decarbonise mounts year after year. Since two thirds (67%) of all ... Read more
South Africa: PV Technology Status and Prospects

Author: Roro, Kittessa T ; Carter-Brown, Clinton G ; Koopman, S ; Mali, T Date: May 2018 The Council for Scientific and Industrial Research (CSIR) has established an integrated energy research centre to provide decision support to South African industry and policymakers, where such support will be informed by its technical research. ... Read more

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