The current installed transmission facility is only 13% of total installed capacity.
Ministry of power plans to establish integrated National Power Grid by 2012 with 200,000 MW power generation and 37,700 MW (additional 20,750 MW planned during 11 th plan) inter-regional power transfer capacity.
Transmission & Distribution losses stand at 33% substantially higher than global benchmarks.
Reforms have been undertaken through unbundling State Electricity Boards into separate power generation, transmission & distribution units.
Privatization of power distribution initiated through outright privatization or franchisee route.
Power Distribution continued
While there has been slow and gradual improvement in metering, billing & collection efficiency, the current losses still pose a significant challenge for power distribution companies.
Full scale asset management & mapping
Predictive, preventive and routine maintenance management
Work order generation, activity scheduling.
Open system platform and database management
Enterprise-wise documentation management
Manual logging of Data
Huge Man power deployment.
Vast count of instruments and data.
Persons expertise required to run the machines.
Generation History Cont….
Manual follow up for running equipment in sequence.
No automatic alarm generation in case of fault.
No analysis provision available in the case of fault.
Auto staring of stand by equipment in case of failure of one is not possible.
Remote monitoring and control not available.
ABB Automation System in power Plant
Gross Generation 2004-05 Hydro 84497 GWh Nuclear 16638 GWh Thermal and Wind 486031 GWh No. Villages electrified 498286 Length of Transmission & Distristribution lines 6497727 Circuit km. Per Capita consumption 606.2 kWh Loss-- Transmission, Distribution, Transformation and Unaccounted energy 32.15%
Analog meters need logging of data by persons.
Controlling of over drawl by utilities is not possible.
Lot of time is required to collect and summerise data for transmission lines running in 100’s of KM.
No Grid discipline.
Localised operation was possible.
Quality parameters( Voltage, frequency andPF) monitoring was missing
Non availability of monitoring system was one of the reason for not connecting different regional grids.
SCADA SUPERVISORY CONTROL AND DATA ACQUISITION
Was introduced in 2002
As the name SCADA ( Supervisory Control and Data Acquisition) implies its functions are two fold:
Scans the monitored system, obtaining and deriving data about the state and operating behavior of devices
Provides the capability to send control signal out to those devices to modify their operation
AVAILABILITY BASED TARIFF
Intra-state ABT is a techno-economic tool for bringing rational tariff structure for supply of electricity from State generators to the distribution Licensees.
It is a mechanism for enforcing discipline in the Grid.
Benefits of Intra – State ABT
a) Benefits to the Power System
Brings about grid discipline by maintaining frequency in prescribed band (49.5 to 50.5 Hz).
Ensures optimum utilization of available generation capacities.
Enhances opportunities for Open access, and Trading of electricity.
Scope for encouraging competition among generators.
Following processes of Scheduling has been automatized:
Declared Capacity (Input)
Discom’s requirement (Input)
Open Access Transactions
Inter Discom Transfer (Output)
Drawl Schedule Generation
Injections Schedule Generation
Unrequisitioned surplus Generation
Schedule generation on the basis of generation back-down.
Printouts of the schedules on the intranet portal of SLDC.
Automatic uploading of schedules on SLDC website on the lines of WRLDC.
Automatic calculation of Inter-discom Transfer of surplus power.
Long distribution lines.
No Preventive maintenance
No power in most of the villages even cities face the same problem.
Low level of Generation
Lack of Transmission network.
Power to all by 2012.
Loss level of Rs 26000 Crore.
National Level of Loss 55%.
High T&D Losses.
No MIS Generation.
Theft of Electricity
Non Payment of Bills
No proper reading of meters
Long processing time for Bills
Manual bill preparation for energy consumed.
No tracking of non payments.
Loop poles in the billing system and high level of erroneous bills.
Free power to vote banks.
No asset management
No balance sheets.
IT implementation in piece meal basis.
Core business operation having no IT implementation.
Parameters for Monitoring
Shorten consumption to collection time
Outage time / PLF
Stable Voltage and Frequency.
Enhanced customer Experience.
Loss level monitoring( Energy Audit)
Best In Class Companies
Ontario Power Generation
National Thermal Power Corporation
Power Grid Corporation
Baltimore Gas and Electric Company
Generation: Ontario Power Generation
OPG's generating portfolio has a total capacity of over 21,000 megawatts (MW)Operates 65 hydroelectric, 5 thermal, 3 nuclear power stations
2009 generation mix consisted of 51% nuclear, 39% hydroelectric and 10% thermal electricity
(i) Generating Capacity :- 6606 MW
(ii) 2009 Output :- 46.8 TWh
(iii) Currently generating :- 5167 MW
(i) Generating Capacity :- 6963 MW
(ii) 2009 Output :- 36.2 TWh
(iii) Currently generating :- 2042 MW
(i) Generating Capacity :- 8177 MW
(ii) 2009 Output :- 9.5 TWh
(iii) Currently generating :- 3424 MW
Throughout 2009, the availability of our hydroelectric stations remained at consistently high levels, finishing the year at 94.8 per cent.
The nuclear stations achieved a capability factor of 84.0 per cent in 2009
Generation: National Thermal Power Corporation
Installed Capacity - 28840 MW
Generation - 218840 Mus
PLF - 90.81 %
Availability Factor - 91.76 %
Transmission: Power Grid Corporation of India Ltd.
POWERGRID, the Central Transmission Utility (CTU) of the country, is responsible for providing matching transmission network for generation capacity programme under Central Sector, implementation of various system strengthening schemes, load dispatch & communication schemes and inter-regional link s
Company Performance (figure in crores)
Turn over : 4082 ( 66% Growth )
Net Profit : 1229 ( 78% Growth)
Gross Asset Base : 29015 (111% Growth)
Net Worth : 10668 ( 58% Growth)
Distribution: Baltimore Gas & Electric Supply Co.
For nearly 200 years, the Baltimore Gas and Electric Company (BGE) has met the energy needs of central Maryland.
Customer Base is spread across approximately 2,300 sq. miles, including Baltimore City and all or part of 8 Maryland counties in central Maryland
More than 1.2 million electric customers
Residential - approximately 1.1 million
Commercial and Industrial - approximately 122,100
Total Revenue : $2,680 million (63% Residential, 22% Commercial, 2% Industrial)
Average use per residential customer: 13,020 kWh annually
Distribution: Torrent Power
Torrent Power distributes over 10 billion units of power to annually Ahmedabad, Gandhinagar and Surat – the industrial and commercial hubs of Gujarat.
Over 1.9 million customers spread over an area of 408 Sq Kms in these cities are served