intra state abt necessity issues implementation. some of the features of new national electricity...
TRANSCRIPT
• INTRA STATE ABT
Necessity
Issues
Implementation
Some of the features of New National Some of the features of New National
Electricity Policy – Feb.’05Electricity Policy – Feb.’05
• Appropriate Commissions to undertake development of power market
• SERCs to notify GRID CODE by September 2005, if not yet notified
• State Commissions to ensure upgradation of SLDCs by June 2006
• SERCs are advised to introduce ABT regime at the State level within one year i.e. by February 2006.
Need for intra-State ABTNeed for intra-State ABT
• Accountability of utilities after reforms• Passing on UI payment
– Intra State ABT to identify agencies responsible for overdrawal/underdrawal, overgeneration/ undergeneration, resulting in UI payment to regional pool.
• Proper Demand forecast and load management by DISCOMs
• To establish a framework for bilateral trading at intra-State level
• To achieve overall merit order operation.
ISGS-1 ISGS-2 ISGS-3
CTU / ISTS SYSTEM RLDC CORDINATES
INTER-STATE
INTRA STATE
STU/INTRA STATE SYSTEM
SGS-1 SGS-2 SGS-3
DISCOM-1 DISCOM-2 DISCOM-3
SLDC CO-ORDINATES
OPEN ACCESS CUSTOMER
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•ISGS: Inter State Generating Stations•SGS: State Generating Stations•CTU: Central Transmission Utility•STU: State Transmission Utility
Inter-State ABT
Intra-State ABT
•Distribution Control Centre – One for each Discom
IPPs CPPs
Non-conventional source of energy e.g., wind energy
Intra state ABT Intra state ABT
• Pre – requisites• Unbundling of Vertically Integrated State Utilities• Allocations from ISGS/ other state owned generators to
various Discoms by State Govt• Control centres in each Discom• RTUs at required locations
– Generating stations– Drawal points from STU to DISCOMS on
various tie-lines, ICTs– various other critical lines
• SCADA information to Discom Control Centres• SEMs at required locations • Processing of SEMs data/Settlement system
Intra-state ABT Intra-state ABT ..what it achieves ?what it achieves ?
Harness surplus generating capacity available in state with CPPs / IPPs
• Operation of grid on economic principles –Merit Order Despatch
• Open Access in Intra-state Transmission and Distribution.
• Generate signals for efficient grid operation at the intra-state level.
Intra-state ABT Intra-state ABT ––what it achieves ?what it achieves ?
• Overdrawals at low frequency by Discoms duly priced.
• Encourage serving of higher consumer demand • Encourage maximisation of generation during
deficit conditions.• Each Discom and state generating station
responsible for its actions – a profit centre• Commercial signals available to large
consumers capable of regulating drawal
……Intra-state ABT Intra-state ABT – what it – what it achieves ?achieves ?
• UI mechanism at the intra-state level• UI to be applied on the deviations from the schedules
of the DISCOMS/State generators/IPPs/CPPs.• State Utilities to be collectively liable for the States’
liabilities with the regional UI pool account. • Achieves merit order operation for all the entities
under ABT• Commercial viability of running Pumped Storage
Stations.
Issues needs to be addressed for Issues needs to be addressed for intra-State ABTintra-State ABT
• Restructured SEBs• Identification of entities for intra-State ABT• Scheduling Principles & Procedures• Commercial Principle
– Metering Philosophy• Treatment of existing Agreements• Organisational Development• Regulatory Issues
The main steps involved to implement intra-State ABT are:
• Listing of entities on which ABT/UI mechanism to be applied
• Listing of Metering locations and assess the requirement of meters and accessories
• Finalize the specifications for meters and accessories
• Presentation of the mechanism to all concerned
• Finalisation of the tariff for all generating stations in ABT format.
Implementation of intra-State Implementation of intra-State ABTABT
Implementation of intra-State ABTImplementation of intra-State ABT
• Finalisation of shares of each distribution zones and other commercial arrangements
• Organize installation & commissioning of meters and accessories.
• Organising meter reading, data transfer and computation at SLDC
• Establishment of the scheduling process along with scheduling software
• Presentation/training to all concerned
Implementation PlanImplementation Plan• 1st Phase Activities
– Finalisation of listing of entities– Listing of Metering locations– Finalisation of technical specifications &
quantities of SEMs, DCDs/MTEs– Initiate tendering process for procurement
of meters & RTUs
• 2nd Phase Activities – Finsalisation of Tariff of State Generating
Stations as per ABT parameters/norms– Finalisation of Reactive Charge scheme– Finalisation of commercial mechanism for
CPPs, Wind farms, Wheeling and banking, Open Access Customers etc.
– Determination of Allocations of different Discoms in State Genco/ ISGS/ IPPs.
Implementation PlanImplementation Plan
• 3rd Phase Activities – Supply and commissioning of meters at
different locations– Installation of software for data processing – Installation of software for scheduling /
energy accounting– Training– Estimate time for implementation – 12 to
18 months
Implementation PlanImplementation Plan
Status on intra-State ABTStatus on intra-State ABT• Many SEBs restructured, others in process• State Utilities looking for benefits of intra-
State ABT• took lead for intra-State ABT• Punjab took lead in Northern Region• Road-map for Maharashtra is ready• POWERGRID assisting these States by
providing consultancy• Other States like MPSEB & Haryana to
follow.
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INTRA-STATE ABT
METERING