TOPIC Aubrey Mochela GM:ICT and Project Manager Load Limiting City Power (CoJ MoE) South Africa

Transcription

1 TOPIC Aubrey Mochela GM:ICT and Project Manager Load Limiting City Power (CoJ MoE) South Africa Place your company logo here NB: Your company s logo is only permitted on the first slide!

2 Smart Meter Key Benefits Smart Meters Rolled Out to date Protective Structures 1. Auto Billing 2. Time of Use (ToU) Customer Cost Saving Benefit Peak Load Reduction Enforce Domestic Load Reduction Reduce Load Shedding Works with ToU Load Limiting Web Portal Customer Billing Analysis Trending of usage Works with ToU

3 Revenue by Customer Category Customer category Numbers % of Clients Revenue % Revenue Agriculture % % LPU % % Business % % Domestic (Post Paid) % % Prepaid Clients % %

4 Typical Utility Leakages TECHNICAL LOSSES OPERATIONAL LOSSES FINANCIAL LOSSES DISTRIBUTION LOSSES METERING LOSSES SALES LOSSES BILLING LOSSES ACCOUNTING LOSSES Technical Line & Transformation Losses Outage and Overloading Load Balancing Voltage Regulation Philosophy Energy Reconciliation Profit Margins Inventory Integrity Network Monitoring & Visibility Meter manipulation Meter by-pass Energy Tapping Biased Estimations Reading Errors Lost Readings Stuck & Faulty Metering Multiplication Factor Errors Estimation Errors Tariff misalignments Credit Integrity Misplaced Orders Adjustments Integrity Contracts Integrity Misconfiguration on billing system Unbilled Customers Missing Customers Prolonged Estimations Illegal Conversions to lower tariff classes Misconfiguration Overcharges Undercharges Missing Payments Late Payments Non-Payments Bad-debt Integrity General Ledger Errors Faulty Reports Profit Margins

5 City Power Smart Meter Performance Current Challenge Proposed Solution Inaccessible Meters Change these meters to smart meters Faulty Meters Replace all faulty meters with either prepaid or conventional smart meters depending on meter accessibility. System Meter Updates Locate and/or recreate job cards Incorrect Address Meter audit to verify the stands supplied with electricity and meter number Illegal connections Investigate and remove

6 Load Management Activities System Activity Action Time Start End Set load to heavy (Stove) Freedom 14:05 Use ARAC to set the Load Freedom 14:05 Bulk SMS Send SMS to customer (Inform) Makwena 14:07 SATURNE Set the Load Limiting Strategy Makwena 13:50 14:10 14:30 Scenario 1 Ignore Instruction Freedom 14:10 Smart Meter Load Limiting trips Automated 14:11 14:11:30 14:12:00 Scenario 2 Use ARAC to reduce the Load Freedom 14:12 Smart Meter Load Limiting meets threshold Automated 14:12 Scenario 3 City Power sets a schedule to override control Makwena 14:15 14:30 Load Limiting With Automated Remote Appliance Control

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10 Load Limiting Sequencing Start 17:00 End 22:00 Load Shedding Period Start 17:00 End 20:00 Ripple Control & ARAC Start 17:30 Load Limiting End 19:30 Manage Time of Use and Reduce Your Cost

11 Load Limiting Look and Feel Time When Load Limiting was dispatched to field Duration of Load Limit Event Satellite View of Meters within Load Limit Area Key Load Profile Info: - Average Area Load Profile (based on historic data) - Actual Real time load reduction curve - Load Limit - Load Limit Period Load limit Event Information: - Area - Total Meters - Set Limit - Expected Load Reduction - Actual Load Reduction Progress of Load Limit Event

12 Load Limiting Facts and Figures Load Limiting Results The summary below provides the executive management with the overall statement of performance of the Load Limiting Project. The first phase of the project is understood to be successful even though some minor issues were experienced and rectified. The table below provides the project key areas and performance thereof: Key Area of Focus Meter Population MWPlanned MWRealized Launch at Aspen Hills 82 meters 92kW 131kW Week 1 of Mass Rollout 2952 meters 18MW 14,26MW Week 2 of Mass Rollout meters 90MW 53,76MW Week 3 of Mass Rollout meters 67MW 50MW Overall Achievement

13 What If I am not at home Home Automation What if I am not at home? Technology is available to switch appliances remotely City Power has done a business case for installing the technology at the client s premises. The client can opt to install the web based technology, which allows one to control from a smartphone/web. The technology uses GPRS technology. Demonstration will now commence.

14 Automated Remote Appliance Control (ARAC) Smart Home Automation

15 Automated Remote Appliance Control (ARAC)

16 ARAC Value Add The platform provides the following features: Ability to data warehouse all the data obtained from the controllers. Provide redundancy and fail-over. Have the ability to monitor the following on each contactor connected to each controller: The contactor status is it switched on or off and which schedule (municipal or end customer) or override is regulating the control. If the contactor is on (allowing current to flow), how much current is flowing through the circuit? Have the ability to switch each contactor individually into one of the following operation modes: Override off Override on Set to schedule Have the ability to create operation schedules for individual and groups of controllers. Connectivity from the home to the Internet Smart Appliance Control using mobile platform

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22 Cooperation Between Municipalities on Smart Metering Solution (Smart City) Uraia is one of the International forums stimulating cooperation Platform that brings together local government, service and technology providers Support use of SMART technologies addressing Municipal Finance Management of Public Services & Infrastructure Transparency and Accountability SALGA and City of Johannesburg are active participants

23 Questions & Answers