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Browsing by Author "Tazvinga, Henerica"

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Can solar -biogas hybrid systems be the solution to sustainable energy supply in rural areas?

Author: Tazvinga, Henerica ; Amigun, B ; Stafford, William HL ; Mapako, M Date: Apr 2011 Access to modern energy services is a fundamental prerequisite for property reduction and sustainable human development. Many remote rural South African communities are characterized by low energy demand and low population densities, making ... Read more
Development of a power system simulation model for a South African commercial entity’s reticulation network

Author: Kamera, Ketrine P ; Hlatshwayo, Mluleki C ; Moholisa, Tsolo E ; Rampokanyo, Mpeli J ; Tazvinga, Henerica Date: Aug 2018 Increasing electricity prices and the declining cost of renewables have led to several industrial, commercial and residential customers in South Africa pursuing the installation of generation “behind the meter” in order to reduce their ... Read more
Energy audit: A case study to reduce lighting cost for an industrial site

Author: Dzobo, O ; Tazvinga, Henerica ; Mungofa, E ; Chihobo, CH ; Chikuni, F ; Chikuni, E Date: Jun 2017 Lighting is an essential service in all industries. Recent innovation and continuous improvement in the field of lighting has given rise to tremendous energy saving opportunities in this area. This paper presents the results of an energy audit ... 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
Experimental determination of a critical temperature for maximum anaerobic digester biogas production

Author: Sichilalu, S ; Lyandenga, P ; Tazvinga, Henerica ; Wamalwa, F ; Ngoyic, L ; Mathaba, T ; Wanjiru, E ; Xia, X Date: Aug 2017 This paper presents an experiment anaerobic digester system. The objective was to evaluate the optimal temperature for maximization of the biogas production through optimal constraining of the mesophilic temperature between log phase for the ... Read more
Financial benefits of integrating east–west fixed, single and dual axes tracking PV systems in the supply mix of a South African Research Campus

Author: Tazvinga, Henerica ; Moholisa, Tsolo E ; Basappa Ayanna, Manjunath ; Pratt, Lawrence E ; Hlatshwayo, Mluleki C ; Mushwana, Crescent Date: Aug 2018 The use of Photovoltaic (PV) systems in distribution networks has increased in the past few years. The benefits of PV systems connected to the grid include reducing the carbon footprint, improving energy access, and security as well as the ... Read more
A grid-tied PV system for commercial load and peak load reduction: South African case study

Author: Senatla, Mamahloko ; Tazvinga, Henerica ; Moholisa, Tsolo E ; Mushwana, Crescent Date: Aug 2017 Photovoltaic (PV) systems are increasingly being installed globally for various reasons including reducing the carbon footprint, improving energy access, for supply and demand side management purposes. The price of PV has been going down in ... Read more
Hybrid energy systems for rural communities in Zimbabwe

Author: Tazvinga, Henerica ; Dzobo, O Date: Jun 2017 Renewable energy sources such as solar photovoltaic (PV) systems have been widely utilized as alternative energy sources to fossil fuels in residential areas in many countries. The PV cell output varies according to many factors including ... Read more
Integration of biogas into the rural energy supply of solar home system powered households in South Africa: A case study of Tsware, Mailula and Muropo vilages in Limpopo.

Author: Tazvinga, Henerica ; Murambadoro, M ; Mapako, M Date: Oct 2011 This study indicates that it is technically feasible to combine solar home systems and biogas to meet the community's thermal needs, however more work needs to be done to arrive at the best possible financial implementation model. All ... Read more
Investigating the impact of integration of photovoltaic plants at a microgrid level: A case study

Author: Moholisa, Tsolo E ; Rampokanyo, Mpeli J ; Tazvinga, Henerica ; Senatla, Mamahloko ; Mushwana, Crescent ; Dzobo, O Date: Nov 2019 South Africa has seen an increase in the integration of renewable resources in the distribution network for improved reliability, clean energy footprint and energy costs. The Council for Scientific and Industrial Research (CSIR)’s main campus ... Read more
Optimal control of a fuel cell/wind/PV/grid hybrid system with thermal heat pump load

Author: Sichilalu, S ; Tazvinga, Henerica ; Xia, X Date: Oct 2016 This paper presents an optimal energy management strategy for a grid-tied photovoltaic–wind-fuel cell hybrid power supply system. The hybrid system meets the load demand consisting of an electrical load and a heat pump water heater supplying ... Read more
Optimal dispatching of a photovoltaic-biogas hybrid system

Author: Tazvinga, Henerica Date: Aug 2018 This paper presents an optimal dispatching strategy for a photovoltaic-biogas hybrid system for an off-grid institution. The aim is to prioritise use of the PV system to meet demand whenever available. If the demand is less than the PV output, ... 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
A sustainable operational method for micro-scale biodigesters in South Africa

Author: Semelane, Maphumzane S ; Tazvinga, Henerica ; Diakanua Nkazi, B Date: Aug 2018 This paper describes an investigation into sustainable operational methods for micro-scale biodigesters. The findings indicate a compulsory maintenance contract that ensures constant digester feeding for microorganism sustenance is essential. ... Read more
Systems dynamics modelling to assess the sustainability of renewable energy technologies in developing countries

Author: Brent, AC ; Mokheseng, B ; Amigun, B ; Tazvinga, Henerica ; Musango, J Date: Apr 2011 The ‘water-energy nexus’ is now receiving more attention as policy- and decision-makers grapple with measures to enable the transition to a sustainable, low-carbon economy. South Africa, in particular, finds itself in a polycrisis in terms ... Read more
Technical model for optimising PV/diesel/battery hybrid power systems

Author: Tazvinga, Henerica ; Hove, T Date: 31 Aug 2010 A solar-based power supply system, such as a photovoltaic (PV)-diesel-battery system, is a particularly attractive option for decentralised power supply in southern Africa where solar radiation is ubiquitous in most countries. Such systems ... Read more
Women’s perceptions on the integration of solar powered home systems and biogas and its potential to improve gender disparities in energy

Author: Murambadoro, M ; Tazvinga, Henerica Date: Oct 2012 The extension of the national grid to rural areas has been hampered by several factors such as long distances, high costs of tension lines and the relatively low energy demand in rural areas which does not compensate the cost of long range ... Read more

Now showing items 1-17 of 17

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