UTILITY MONITORING & DISTRIBUTION FRANCHISE (DF) –WORKSHOP OBJECTIVES & STAKEHOLDERS
Objective of Workshop
• Create an engagement platform for utilities and businesses to understand each others requirements and constraints well to allow a rationale PPP model emerging & scaling -specifically Distribution Franchisee, its Change Management and Co-creation
• Drive importance of Monitoring (Measurements and Analytics) to improve SEB’s performance and paving way for Smart grid in India
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UTILITY MONITORING & DF – WORKSHOP CONTENT AND
SPEAKERS3/16/2011
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Activities/Topic Speakers
Topic 0: Status quo and impact of DF pManifold Rahul Bagdia(Co-chair)
Utility •Business Performance Monitoring•Quality check on works & material•Timely audit•Transfer of employees•Loosing identity as utility
• Single point control•Reduction in AT&C losses.•No any O&M, Admin. cost & capital cost •Higher recovery of power purchase cost•Monthly fixed revenue/ profit
Franchisee • Surety / confidence about business at starting•Domain knowledge•Handling of Employees of utility•Political & local environment
•No direct monitoring by regulator•Can get access of consumers for 10-15 years•Financial turnaround
Consumers • Fear of tariff increase•No human face •Monopolistic approach•Precursor to privatisation•Harsh treatment by DF
• Reduction in tariff•Transparency in new connection• Will avoid delay in every work•Reduction in load shedding•Good consumers services•24x7 call center & quality power supply
UtilityEmployees
•Transfers•Promotion channel•Reservation•Lack of professionalism•Fear of privatisation•Secondary treatment to utility employees
• Will get more salary•Modern technology update•Best practices sharing•Performance based opportunities.
BENCHMARKING BHIWANDI & NAGPUR – 2. FURTHER NEEDED IMPROVEMENT
OF BIDDING CONTRACTS TO SUSTAIN CO-OPERATION & BUSINESS VIABILITY3/16/2011
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Parameters Bhiwandi-TPL Nagpur-CGL & SPANCO
Indexation of tariff Indexation of Tariffs is based on average tariff applicable to all MSEDCL consumers.
Indexation of Tariffs is based on average tariff applicable to all consumers in the Franchise Area
Input Rate No specification in this regard. It was stated in the DFA that 90% of Input rate payable by Franchisee was for purchase/sale of power and 10% for services, such as right to use network.
Reading Meter reading was made the responsibility of the Franchisee
CGL- HT Meter reading jointly by DF and MSEDCLSPANCO- No such provision
Service quality Failure of the Franchisee to maintain minimum service quality due to inadequate network investments was not specified to be a Critical Event of Default for the Franchisee.
Failure of the Franchisee to maintain minimum service quality due to inadequate network investments has been included as a Critical Event of Default for the Franchisee.
Arrears For arrears the Franchisee is required to remit at least 65% of arrears from Current Live Consumers for three months prior to Effective date.
For arrears the Franchisee is required to remit at least 100% of arrears from Current Live Consumers for three months prior to Effective date.
New Connection Such provision was not provided in case of Bhiwandi.
CGL- The Distribution Franchisee shall grant new connections with a connected load equal to or more than 1.5 MVA only after obtaining approval of MSEDCL.SPANCO-Such condition is deleted.
METRICS DOMINANT, NOT TIED TO DIAGNOSTICS OF NETWORK3/16/2011
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KPI Measures/ Causes Interventions
SAIDI - System Average Interruption Duration Index
CAIDI -Customer Average Interruption Duration Index
information about the average time the customers are interrupted
information about the average time required to restore service to the average customer per sustained interruption
• Use of Auto re-closers/sectionalisers based on analysis of faults transient or semi-permanent or permanent • better loading management/use of good quality insulators.• Use of Fault Passage Indicators in 33 kV & 11 kV overhead lines ( & also in U.G cable systems) for both line to ground fault & phase to phase faults will also reduce fault localization & isolation times • Even one midpoint recloser in a over head line will improve SAIDI by over 10% as compared to a sectionlising switch and further improvements of over 50% will come if single pole reclosers are adopted.
Distribution Transformer Failure
• Failure rates over 20 % in rural & 11-15 % in urban areas are seen•Failure reasons may be Ageing, poor quality of insulation/design/manufacture (many times in repaired units),overloading and absence of LV side protection with poor quality of LV network like loose spans/bent poles etc
• Load balancing, Overloading, Maintenance (Trf and LT mains), • Refurbishment, • Protection (Buchholz relay, HT and LT side), • ABC, Lightning Arrestor, Earthing health
Overhead Line Failure Rates per 100 kms(separate for LT & HT)
• Over head line failure rates/100 kms will give a fair comparison between areas and to plan remedial measures including use of Aerial bunched cables for 11 kV & LT lines in wooded areas
KPIS FOR UTILITY PERFORMANCE – 2. DYNAMIC UPDATES OF MIS W/ ASSET MAPPING IS ESSENTIAL FOR AN INTEGRATED INTERVENTION
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KPI Measures/ Causes Interventions
SAIFI - System Average Interruption Frequency Index
information about the average frequency of sustained interruptions per customer over a pre-defined area
• Analysis has shown that a mid point recloser in a 11 kV line will improve SAIFI by over 31% ( as compared to a radial system with only sending end breaker)and a 12 % further improvement is possible if single phase reclosing is adopted.
ATC losses clear indicator of utility performanceindicating delivery system losses:• both Technical & Commercial• and collection efficiency
• Software based network analysis will help understand levels of technical losses in 11 kV & LV networks• Measures to be taken like line reinforcement, use of shunt capacitors, feeder bifurcation, use of HVDS, location of new sub-stations after considering load growth & making Cost-Benefit analysis duly considering capital investments needed, LF/LLF, Energy losses saved, cost of capital/energy in the area. • Consumption Analysis of high value consumers (Ice Plants, flour mills, plastic industry) - AMR for continuous remote monitoring• Use of Aerial Bunched cables will reduce theft by direct hooking• Good CTs/PTs in large installations• spot billing using handheld devices & prompt delivery of error free bills to consumer• Suitable bill collection arrangements like cash counters, easy payment kiosks, collection through ECS/bank etc• Prompt disconnection after due date for payment & follow up
O&M Expenses O&M cost/kwhr of energy input • Reduction of DTC failures, • automated remote metering (AMR), deployment of handheld spot billing machines , • better network planning /construction, use of reclosers etc
SERVICE QUALITY IS UTMOST DRIVER FOR PERFORMANCE3/16/2011
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KPI Measures/ Causes Interventions
Customer Satisfaction Index
• Customer O&M Complaints• Percent of new connections given with in 2-3 days or with in time stipulated by Regulator.• Percent of Billing complaints resolved in 1-2 days or time limit stipulated by Regulator.• Percent of supply complaints resolved within a day or as stipulated by regulator.
• periodic survey among different class of consumers area wise will give a feed back on their satisfaction index which can include quality of supply, reliability of supply, MBC related service and regarding new connections.• Record of low/high voltage complaints received in service stations, billing complaints, time for getting new connections, time for restoration of supply when there are problems in service mains, feeding DTC
BEST PRACTICES IN POWER DISTRIBUTION – NDPL CASE STUDY, JV OF
TATA POWER AND GOVT. OF DELHI (STARTED OPERATIONS IN 2002-03)3/16/2011
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Strategy:
• Focused CAPEX (Rs. 2500 cr. from 2002-2011) towards :
• AT&C loss reduction (<15%)
• System improvement
• Load Growth
• Information Technology
• Consumer service & IT Interface to be comparable with World Standards
• System Reliability to be comparable with Best Utilities in India
• Performance Orientation through Change Management
• Decentralization of O&M activities / function
• Centralization of Commercial activities / Processes
• Replacement of Old Electro Mechanical Meters by Electronic Meters
• Energy Accounting
Results: <15% ATC losses
Excerpts from Y.S.Butola @ NDPL presentation @ IIES 2011
COMPONENTS OF ATC LOSSES & NDPL USED TECHNICAL LOSSES
REDUCTION MEASURES3/16/2011
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Collection Process Deficiencies:
20. Part Payment by Consumer
21. Non Delivery of Bills
22. Non Payment by Consumer (Defaulters)
23. Premise Disconnected with Dues
Billing Process Deficiencies:
14. Consumer not billed / under-billed
15. Provisional Billing
16. Bills pending for Quality Check (BQC)
17. Bills pending for assessment
18. Meters installed but not appearing in data base
19. Un-metered connections:
(Unauthorized Colonies, JJ Clusters
Street Lights Poles)
Metering Process Deficiencies:
7. Meter (address) not traceable
8. Import / Export Metering Error
9. CT Ratio Errors
10. Stop / Slow / Defective Meter
11. CT Ratio Errors
12. Meters not read
13. Mismatch of Meters
Theft / Unauthorized Use:
2. Direct Hooking
3. Tampering / By-passing of Meter
4. Misuse of Category
5. Use of Multiple Connections - Misuse of Slab
6. Sanctioned Load lower than actual usage
Technical Loses:
1. Iron & Copper losses at
Sub-transmission (66kV/33kV) &
Distribution (11kV & below) Network
Excerpts from Y.S.Butola @ NDPL presentation @ IIES 2011
NDPL BEST PRACTICES - DT LEVEL ENERGY AUDITNG, SMS BASED FAULT MGMT. SYSTEM, INTEGRATED UTILITY ERP ‘SAMBANDH’, PPPS FOR GOOD LEGAL ENFORCEMENT SYSTEM
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• Initiatives in Association with Govt.:
• Constitution of Special Court
• Assistance of Police Force / CISF during EnforcementActivities
• Relocation of JJ Clusters to a new resettlementColony (Sawda Ghevra) for providing better services
• Amnesty schemes for settlement of old disputedcases (DT / DAE etc)
• Decentralised Generation
• 108 MW Combined Cycle Power Plant
• Solar PV Based Power Plant
Excerpts from Y.S.Butola @ NDPL presentation @ IIES 2011
R-APDRP RS. 30K CR. INVESTMENT BY 2012 - REDUCING LOSSES, CONSUMER SERVICE IMPROVEMENT, BRINGING COMMERCIAL VIABILITY, ACCOUNTABILITY AND REDUCING OUTAGES AND INTERRUPTIONS
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R-APDRP Part-A (SCADA and IT)
•IT Infrastructure set up
•GIS based Consumer indexing and asset mapping
•AMR of Substation, DT & HT consumer Meters
•IT applications for customer carecentre, meter reading, billing &collection and Business Process Automation
•SCADA
IT and AMI in DistributionR-APDRP Part-B (Renovation & Modernization)
•Turn-key execution of Electrical Network Infrastructure Projects
•Transformer replacement
•New / revamping of sub stations
•HVDS
•Re- conductoring
•Load bifurcation / balancing
•Capacitor banks
•Mobile service centers
Customer Care Center
Infra at
Office Users desk
Disaster Recovery
CenterAMI, SCADA
& Other Entities services
DATA CENTER
System Study
Design
Data Base Creation
Software Development
Testing
Data Migration
Configuration
IT Infrastructures
Network Connectivity
Metering, Billing & Collection
Connection Management
CRM
Work flow management
Seamless data
AMR Data
GIS & Network Analysis
DW,BI & MIS
Energy Audit
We self Service
SCADA DMS
Key Accelerators for R-APDRP success
•Awareness amongst employees & officers of utilities
•Provision of appropriate Meters & space for AMR devices
•Motivating users for actively participate in implementation
•Adoption in change in business processes and practices
•Provision of basic infrastructure required for IT & Automation
•Top managements active involvement for timely decisions & driving
•Dedicated team, nodal officers and coordinators for implementation
•Secure funding
•Selection of right agencies & resources
•Prompt review mechanism
•Appropriate understanding of project implementation to all team members
Excerpts from Pratap Dhumale@ L&T presentation @ IIES 2011
TECHNO-BUSINESS PARAMETERIZATION OF DF3/16/2011
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DF Capex Investment guiding parameters
• Reduction in AT& C Losses
• Strengthening Distribution Network
• Consumer Relationship Management
• Asset Management
• Improvement in billing and collection efficiency
Transformation through Operational Excellence
Performance Monitoring & Mgmt. crucial
Customer Care & Billing
CRM
Contracts and Billing
Credit Management
Meter Data Management
Advanced Metering
Infrastructure
Validation, Estimation &
Editing
Network Management
Consumer mapping
Network Analysis
OMS / FMS
Operations Management
Asset lifecycle
management
Workforce Management
Excerpts from Prasad Sutaone @ GTL presentation @ IIES 2011
REAL TIME CONTINUOUS DATA MONITORING – HUGE SAVING
POTENTIAL FROM EFFECTIVE MEASUREMENTS TO ACTIONS3/16/2011
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Transformer Loss rises sharply whenReactive Power is negative. This isshown in these graphs.
This is only possible if theTransformer Electrical parametersare monitored every minute, andnot every hour.
Utilities often ignore the importanceof Data Logging in Real Time, and areunable to capture the behavior ofequipment. This leads to error injudgment while analyzing any fault oroptimizing its use.
Transformer loss
v/s
Reactive Power
Transformer loss
v/s
Apparent Power
Excerpts from Hemant Diddee@ Heta Datain ([email protected]) presentation @ IIES 2011
Zero Active Power does not mean thatcurrent is zero. Reactive Power flowneeds to be monitored also.
The graph below show the output of a30 MW Generator feeding the 11 KVbus. Even when the Active Power iszero (circled black), the Current is 16amps and Apparent Power is 4 MVA,due to Reactive Power drawn by theload.
This is again one area where Real TimeData Logging of various Electricalparameters in Feeders can help detect/ design / and safely operate anyequipment.
Real Time Data logging is cheap, andthe cost will be offset within an year.
Excerpts from Hemant Diddee@ Heta Datain ([email protected]) presentation @ IIES 2011
