topic gm:ict and project manager load limiting city power ... · revenue by customer category...
TRANSCRIPT
TOPIC
• Aubrey Mochela
• GM:ICT and Project Manager Load Limiting
• City Power (CoJ MoE)
• South Africa
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company’s logo is only permitted on the
first slide!
Smart Meter Key Benefits
• Customer Billing Analysis
• Trending of usage
• Works with ToU
• Enforce Domestic Load Reduction
• Reduce Load Shedding
• Works with ToU
• Customer Cost Saving Benefit
• Peak Load Reduction
• 100000 Smart Meters Rolled Out to date
• Protective Structures
1. Auto Billing
2.
Time of Use (ToU)
4.
Web Portal
3.
Load Limiting
Revenue by Customer Category
Customer category Numbers % of Clients Revenue % Revenue
Agriculture 33 0.01% 900 051.00 0.01%
LPU 4 407.00 1.06% 6 436 192 075.00 52.59%
Business 10 936.00 2.64% 1 125 511 701.00 9.20%
Domestic (Post Paid) 148 881.00 35.93% 3 674 384 070.00 30.02%
Prepaid Clients 250 085.00 60.36% 1 001 120 584.00 8.18%
Typical Utility Leakages
METERING LOSSES
SALES LOSSES BILLING LOSSES ACCOUNTING
LOSSES DISTRIBUTION
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
TECHNICAL LOSSES
OPERATIONAL LOSSES FINANCIAL LOSSES
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
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
Load Limiting Sequencing
Ripple Control & ARAC
Start 17:30
End 20:00
Load Limiting
Start 17:00
End 19:30
Load Shedding Period
Start 17:00 End 22:00
Manage Time of Use and Reduce Your Cost
Load Limiting Look and Feel Time When Load Limiting was
dispatched to field
Duration of Load
Limit Event
Load limit Event
Information:
- Area
- Total Meters
- Set Limit
- Expected Load
Reduction
- Actual Load
Reduction
Progress of Load
Limit Event
Key Load Profile
Info:
- Average Area
Load Profile
(based on historic
data)
- Actual Real time
load reduction
curve
- Load Limit
- Load Limit Period
Satellite View of
Meters within Load
Limit Area
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 MW Planned MW Realized Overall
Achievement
Launch at Aspen Hills 82 meters 92kW 131kW
Week 1 of Mass Rollout 2952 meters 18MW 14,26MW
Week 2 of Mass Rollout 11130 meters 90MW 53,76MW
Week 3 of Mass Rollout 31679 meters 67MW 50MW
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.
Automated Remote Appliance Control (ARAC) Smart Home Automation
Automated Remote Appliance Control (ARAC)
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
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
Questions &
Answers