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Browsing Conference Publications by Author "Calitz, Joanne R"

Now showing items 1-19 of 19

Brief analysis of variable renewable energy contribution during loadshedding (Q1-2019)

Author: Wright, Jarrad G ; Calitz, Joanne R Date: Apr 2019 The RSA power system again became constrained in Q1-2019 with Eskom needing to loadshed (to Stage 4 at times). Causes of leadshedding have been cited as high unplanned plant failures on the thermal coal fleet, depleted diesel (OCGTs) and water ... Read more
Brief analysis of variable renewable energy contribution during loadshedding (Q1-2019)

Author: Wright, Jarrad G ; Calitz, Joanne R Date: Apr 2019 The RSA power system became constrained again in the first quarter of 2019, with Eskom needing to loadshed to stage 4 at times. Causes of loadshedding have been cited as high unplanned plant failures on the thermal coal fleet, the loss of 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 Integrated Resource Plan (IRP) 2018

Author: Wright, Jarrad G ; Calitz, Joanne R ; Ntuli, Ntombifuthi ; Rampokanyo, Mpeli J ; Kamera, Pam ; Fourie, Ruan Date: Oct 2018 This presentation contains formal comments on the Integrated Resource Plan (IRP) 2018. 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
Integrated Resource Plan 2019: Initial CSIR insights and risks/opportunities for South Africa

Author: Wright, Jarrad G ; Calitz, Joanne R ; Fourie, Ruan ; Chiloane, Lehlogonolo D Date: Oct 2019 The Integrated Resource Plan (IRP) is the process to establish the need for power generation capacity expansion in South Africa. IRP 2019 highlights clear medium term policy positions (to 2030) whilst long term trends (to 2050) could show a ... Read more
Power-system-wide analysis of the benefits of reserve provision from solar photovoltaics in South Africa

Author: Bischof-Niemz, T ; Calitz, Joanne R ; Wright, Jarrad G Date: Jun 2016 Reserve provision from standalone solar photovoltaic (PV) power plants has to date not been adopted in practice but has been conceptualised by a number of authors for variable renewable energy (RE) power plants like solar PV and wind. 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
Setting up for the 2020s: Addressing South Africa's electricity crises and getting ready for the next decade. Version 1.1

Author: Wright, Jarrad G ; Calitz, Joanne R Date: Jan 2020 This presentation highlights the South African electricity crises and how solutions will be implemented to address this crises during the next decade. Read more
Statistics of utility-scale power generation in South Africa H1-2021

Author: Wright, Jarrad G ; Calitz, Joanne R Date: Jul 2021 This presentation summarize the H1-2021 statistics: A difficult first half of 2021 as extensive loadshedding continued but record relative VRE contributions and diesel usage was recorded. By H1-2021 South Africa had 52.6 GW of wholesale/public ... Read more
Statistics of utility-scale power generation in South Africa in 2020

Author: Calitz, Joanne R ; Wright, Jarrad G Date: Feb 2021 This presentation provides statistics on utility-scale power generation in South Africa in 2020. Coal still dominates the South African energy mix whilst variable renewables surpassed nuclear energy contribution in 2020 by some margin. System ... 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
Statistics of utility-scale solar PV, wind and CSP in South Africa in 2016

Author: Calitz, Joanne R ; Mushwana, Crescent ; Bischof-Niemz, Sebastian T Date: Apr 2017 The REIPPPP is designed to contribute to meeting the national renewable energy target while encouraging foreign investment and developing socio-economic and environmentally sustainable growth. To date, renewable energy projects in South Africa ... Read more
Statistics of utility-scale solar PV, wind and CSP in South Africa in 2017

Author: Calitz, Joanne R ; Wright, Jarrad G Date: Feb 2018 This presentation contains statistics of utility-scale solar PV, wind and CSP in South Africa in 2017 Read more
Statistics of utility-scale solar PV, wind and CSP in South Africa in 2018

Author: Calitz, Joanne R ; Wright, Jarrad G Date: Jan 2019 This presentation provides an in depth investigation of South Africa's Renewable Energy Independent Power Producer Procurement Programme (REIPP) that was started in 2011. Promulgated in 2011, the IRP developed the preferred energy mix with ... Read more
Statistics of utility-scale solar PV, wind and CSP in South Africa in 2019

Author: Calitz, Joanne R ; Wright, Jarrad G Date: May 2020 South Africa’s Renewable Energy Independent Power Producer Procurement Programme (REIPPPP) started in 2011. This presentation details the procured and operational capacity under RSA’s RE IPP Procurement Programme (REIPPPP) in 2019. Extensive ... Read more
Tips for households to mitigate loadshedding and save on electricity costs

Author: Wright, Jarrad G ; Calitz, Joanne R Date: Mar 2019 This presentation discusses ways to avoid/mitigate loadshedding, as well as ways to keep the household running during periods of loadshedding. Read more

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