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Browsing by Author "Mushwana, Crescent"

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Combined wind and solar feed-in to the grid

Author: Mushwana, Crescent ; Ganal, H Date: May 2018 This presentation highlights South African wind and solar resources and presents a case study on wind and solar PV combination. It also distinguishes between traditional and new philosophies regarding energy system design and the changes in ... Read more
Comments on the IRP 2016 Draft

Author: Wright, Jarrad G ; Bischof-Niemz, Sebastian T ; van Heerden, Pieter R ; Mushwana, Crescent Date: Dec 2016 This presentation contains comments on the IRP 2016 Draft. Same software package as per the IRP was used to determine the least-cost expansion path of the South African power system to 2050. 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
Financial benefits of renewables in South Africa in 2015

Author: Calitz, Joanne R ; Mushwana, Crescent ; Bischof-Niemz, Sebastian T Date: Aug 2015 The report provides the presentation of the financial benefits of renewables in South Africa in 2015. South Africa’s power system is currently under severe constraints. At the same time, Department of Energy is procuring new generation capacity ... Read more
Formal comments on the Integrated Resource Plan (IRP) Update Assumptions, Base Case and Observations 2016

Author: Wright, Jarrad G ; Calitz, Joanne R ; Van Heerden, Pieter R ; Bischof-Niemz, Sebastian T ; Mushwana, Crescent ; Senatla, Mamahloko Date: Mar 2017 The CSIR determined the least cost, unconstrained electricity mix by 2050 as input into the IRP 2016. Result: It is least cost for any new investment in the power sector to be solar PV, wind or flexible power. South Africa can de-carbonise ... Read more
Future wind deployment scenarios for South Africa

Author: Wright, Jarrad G ; Bischof-Niemz, Sebastian T ; Calitz, Joanne R ; Mushwana, Crescent Date: Nov 2017 South Africa has historically had a predominantly coal based energy system and a particularly coal dominated electricity system due to a large domestic coal resource and favourable coal generation technology economics. A more recently well ... 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
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
Long-term electricity sector expansion planning outcomes: A unique opportunity for a least cost energy transition in South Africa

Author: Wright, Jarrad G ; Bischof-Niemz, Tobias ; Calitz, Joanne R ; Mushwana, Crescent ; Van Heerden, Pieter R Date: Sep 2019 With climate change being near unequivocally linked to anthropogenic greenhouse gas (GHG) emissions (particularly CO2) there is an ongoing global move to decarbonise economies with the electricity sector being the predominant focus of most ... 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
Opportunities for Renewables in South Africa

Author: Mushwana, Crescent Date: Sep 2015 In 2014, 93 GW of wind and PV were newly installed globally, and until today renewables are mainly driven by the United States, Europe and China. South Africa has implemented an Integrated Resource Plan 2010 which highlights a plan of the ... Read more
Quantifying system-wide financial costs and benefits of renewables (Wind and PV) in South Africa

Author: Bischof-Niemz, T ; Calitz, Joanne R ; Mushwana, Crescent Date: Sep 2015 In this study, the direct financial costs and benefits in South Africa from the wind and PV plants that came online in 2014 and all additional wind projects coming online in 2015 are quantified. In 2014, renewables created financial benefits ... Read more
Renewable Resources in SA

Author: Mushwana, Crescent Date: Feb 2015 Renewable energy is derived form natural resources that are replenished at a faster rate than they are consumed, and thus cannot be depleted. Solar, wind, geothermal, hydro, and some forms of biomass are common sources of renewable energy. ... Read more
Smoothing out the volatility of South Africa's wind and PV energy resources

Author: Bofinger, S ; Mushwana, Crescent ; Bischof-Niemz, T Date: Oct 2015 Solar PV & wind are the cheapest new-build options per kWh in South Africa. By 2020, a mix of PV, wind and flexible gas (LNG-based) costs the same as new coal, even without any value given to excess wind/PV energy. South Africa has abundant ... Read more
Smoothing out the volatility of South Africa's wind and solar photovoltaic energy resources

Author: Mushwana, Crescent ; Bischof-Niemz, T ; Zimmermann, B ; Gerlach, A-K ; Bofinger, S ; Otto, A Date: 2015 Wind speeds can vary greatly from minute to minute, and cloud cover/movement can cause the output of solar photovoltaic (PC) energy sources to vary. As a result, solar and wind power naturally and continuously fluctuates. The CSIR has embarked ... Read more
Smoothing out the volatility of South Africa’s wind and PV energy resources for an increased share of renewables

Author: Mushwana, Crescent ; Bischof-Niemz, T Date: Nov 2015 South Africa's Integrated Resource Plan 2010 (IRP 2010) was initiated to investigate the power generation mix for South Africa until 2030. The implementation of the IRP was done by Department of Energy through competitive tenders (“REIPPPP” ... Read more
Smoothing out the volatility of South Africa’s wind and solar energy resources

Author: Mushwana, Crescent Date: Oct 2015 In the past, renewables were mainly driven by the US, Europe and China, but South Africa is slowly picking up. This presentation discusses South Africa's wind and solar resources as alternative energy resources. Read more
Solar PV resource for higher penetration through a combined spatial aggregation with wind

Author: Bischof-Niemz, ST ; Mushwana, Crescent ; Koopman, Stephen J Date: Jun 2016 The conventional approach to assess and integrate renewable energy (RE) resource individually has its own limitations especially in areas where different energy resources get integrated to supply power to the grid. In South Africa, the Solar ... Read more
Statistics of utility-scale solar PV and wind in South Africa in 2015

Author: Calitz, Joanne R ; Mushwana, Crescent ; Bischof-Niemz, T Date: May 2016 This presentation contains statistics utility-scale solar PV and wind in South Africa in 2015 Read more
Statistics of utility-scale solar PV, wind and CSP in South Africa in 2014

Author: Calitz, Joanne R ; Mushwana, Crescent ; Bischof-Niemz, Sebastian T Date: May 2016 This presentation is about the statistics of utility-scale solar PV, wind and CSP in South Africa in 2014 Read more

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