PUBLIC WORKS AND INFRASTRUCTURE DEVELOPMENT ENERGY ELECTRICITY PROJECTS

PUBLIC WORKS AND INFRASTRUCTURE DEVELOPMENT ENERGY & ELECTRICITY PROJECTS IN THE CENTRAL REGION Director: K. J Leepile SEPTEMBER 2011 1

INFEED POINTS • • • • Kwagga 275 k. V Njala 275 k. V Rietvlei 132 k. V Buffel 132 k. V Mabopane 33 k. V Hartbeespoort 33 k. V Hammanskraal 11 k. V Rooiwal PS Pretoria West PS Wildebees (future) Summerhill (future) Power Station Existing Infeed Station Future Infeed Station

TSHWANE LOAD PROFILE

Central Region (ASD)

20 YEAR MASTERPLAN Gomsand Bulk Capacity project 2011/12 To keep as 100% back-up configuration by adding two 35 MVA transformers from Wolmer and other two 35 MVA transformers from Orchards. (Upgrade from 35 MVA to 105 MVA) To accommodate the future growth in the Central Region The total project cost: R 33 million and project duration from 20102013

CENTRAL WEST REGION CURRENT PROJECT GOMSAND 132/11 k. V SUBSTATION START COMM. PROJECT DATE COST 2010 2013 TOTAL MVA TO BE ADDED R 33 mil WARDS 55 2, 3, 4, 7 PRIMARY PROJECT DESCRIPTION Upgrade from 35 MVA to 105 MVA R 33 mil 70 MVA

Bulk Capacity Backlogs

Bulk Capacity Backlogs CURRENT PROJECTS START COMM. PROJECT 132/11 k. V SUBSTATION DATE COST NEW HATFIELD 2020 2022 R 55 mil Construct new 120 MVA substation (developer) RIVER 2020 2022 R 60 mil To be refurbished (HATFIELD S/S will de-load River in future) 2019 2021 R 50 mil ZEBRA PRIMARY PROJECT DESCRIPTION Reconfigure from 100% backup to ARBC (Upgrade from 70 MVA to 105 MVA) 2015 2017 R 40 mil Upgrade and extend the substation by adding the third transformer. Will keep the 100% back-up configuration. CAPITAL PARK 2025 2027 R 50 mil Upgrade from 70 MVA to 105 MVA BOOM 2027 2029 R 30 mil SAULSVILLE 2025 2027 R 50 mil 2020 2022 R 55 mil 2025 2027 R 50 mil TUNNEL NEW LOTUS ATTERIDGEVILLE TOTAL MVA TO BE ADDED Replace 20 MVA transformers and protection Upgrade from 70 MVA to 105 MVA Construct new 120 MVA substation Upgrade from 70 MVA to 105 MVA R 440 mil 415 MVA

Bulk Capacity Backlogs NAME STATUS Co. T APPLICATIONS TO ESKOM Applied for 33 k. V 80 MVA (firm) at Hartebeespoort Infeed Station. This will supply the top Haretebeespoort dam supply • City of Tshwane (Co. T) applied to Eskom for increase in supply at Hartebeespoort in 2008. area: Zilkaatsnek, Sandspruit, Schietfontein, PMP, • The upgrading of the primary substations in the Hartebeespoort area depends on the upgrading of Hartebeespoort Infeed station. Applied • Hartebeespoort Infeed Station is fully loaded (40 MVA) with no spare capacity. substations. • Indications from Eskom for the upgrading of the Hartebeespoort Infeed station is in 2019. and Swartspruit 33/11 k. V substations. • Waiting for Feasibility quote from Eskom HARTEBEESPOORT INFEED STATION Yskor for 88 k. V 50 MVA (firm) at Hartebeespoort Infeed Station. This will supply the mid Hartebeespoort dam supply area: Ifafi and new Hartebeespoort 88/11 k. V Applied for 132 k. V 100 MVA (firm) at Anderson/Summerhill/Lomond Infeed Station. This will supply the bottom Hartebeespoort dam supply area: Broederstroom, new Crocodile and Florapark 132/11 k. V substations.

Load Forecast

Streetlight Monitoring Devices • To introduce a Tele-management systems for streetlights: (Real Time Streetlight Monitor) – To control streetlights remotely – Proactive monitoring and maintenance of streetlights in the Inner City – Safety; manually control of the lighting levels for the safety of pedestrians and motorists – Maintenance control: in line with SANS 10 098, maintenance plan on streetlights – Management Cost Reduction – Energy Cost Reduction

Social Responsibility • Electrification of the informal settlements to provide basic services to the low cost housing • A total number 0 f 23, 000 backlogs in the Central Region only • Creation of temporary jobs during the implementation of projects (target: 5000 jobs to be created)

PROJECTS NOT ADDRESSING BACKLOG (depends on customer applications and winter load for general up grades) IDP No. 710005 710006 710163 710164 710176 710177 710325 710480 710481 710484 712483 712006 712759 712861 712688 712862 Name Upgrading/ Strengthening of Existing Network Schemes Payments to Townships for Reticulated Towns Sub Transmission System Equipment Refurbishment 11 k. V Panel Extension In Substations Replacement of Obsolete And Dangerous Switchgear Low Voltage Network Within Towns Communication Upgrade: Optical Fibre net Strengthening 11 k. V Cable network Strengthening 11 k. V Overhead Network Substations New Connections Replacement of Obsolete And non functional Equipment Capital Funded from Operating Replacement of Obsolete Protection and Testing Instruments Energy Efficiency and Demand Side Management Rooiwal Power Station Refurbishment TOTAL Budget (R’ m) 5, 5 3 15 6 12 16 6 11 13 3 22 1 3 1 25 5, 8 148. 3 14

Public lighting maintenance Depot Area Princes Park Number of Complains Received 2651 Metro-Routes 171 Fortsig 891 Atteridgeville 1229 Number of Complains Completed Number of Complains Outstanding 2447 200 155 15 737 155 1092 136 % Achieved 88, 5%

CONCLUSION • The present Co. T electricity network is fully loaded and Eskom will only be able to supply more capacity by February 2014. • Most of the Infeed-stations are overloaded and some needs to be upgraded in order to provide more capacity to the City. • Need to explore new technologies to better our services but the question budget still remains a big concern • The challenge is that, even if the substations are upgraded, no power can be transferred until Co. T network has been upgraded. • The under funding/ Cut of funds of electricity bulk infrastructure have a negative impact on service delivery and development and the loss in revenue.

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