Grid Operation --- Role of RLDC. Contents Load Generation Balance Electricity Accounting Real Time Trends ABT Feedback Inter Regional Exchanges Loading.

Slides:



Advertisements
Similar presentations
1 FREQUENCY LINKED DISPATCH AND ELECTRICITY PRICING (An unconventional approach for tackling the peculiar problems existing in India) - Bhanu Bhushan -
Advertisements

1 FREQUENCY CONTROL -- Bhanu Bhushan -- (April, 2011)
ENQUIRY BY SRLDC TO VERIFY THE DETAILS OF DC & AG BY NTPC AND NLC STATIONS PETITION NO:- 67/2003 (suo motto) & PETITION NO:- 90/2005 (TNEB) CERC HEARING.
OPEN ACCESS IN INTER-STATE TRANSMISSION. DEFINITION OF “ OPEN ACCESS ” IN THE ELECTRICITY ACT, 2003 “The non-discriminatory provision for the use of transmission.
Maharashtra State Load Despatch Centre Role of SLDC in RRF Implementation & Issues By MSLDC.
1 TARIFF DESIGN for GENERATING STATIONS -- Bhanu Bhushan -- Feb 2011.
Congestion When transmission demand >capability When Voltage levels in a corridor beyond operable limits When Real time line flow exceeds the TTC Most.
RRF Mechanism ENERGY ACCOUNTING Western Regional Power Committee
INTRA STATE ABT Necessity Issues Implementation. Some of the features of New National Electricity Policy – Feb.’05 Appropriate Commissions to undertake.
1 THE INDIA ELECTRICITY MARKET TIME LINE REAL TIME 15 MT BLOCKS LONG TERM LOAD FORECAST FUND MOBILISATION 10-5 YEARS POWER PURCHASE AGREEMENTS CAPACITY.
IEGC PROVOSIONS FOR RENEWABLE GENERATION SCHEDULING & UI SETTLEMENT 1.
1. 2 ENERGY MANAGEMENT SYSTEM AN OVERVIEW AN OVERVIEW.
Options for Renewable/ Captive/ IPPs etc. EXTRACTS FROM ELECTRICITY ACT 2003 Para 3(1) NATIONAL ELECTRICITY POLICY AND PLAN: The Central Government shall,
Energy Accounting and Need for Special Energy Meters under ABT Regime.
AVAILABILITY BASED TARIFF. HIGHLIGHTS OF CERC ORDER DATED ON ABT 1. ORDER APPLICABLE TO J&K ALSO. 4. ABT WAS TO BE IMPLEMENTED IN ALL THE REGIONS.
REVISION OF SCHEDULES/REQUISITIONS A)OUTAGE OF GENERATING UNIT B) REVISED DECLARATION OF AVAILABILITY BY CGS C) OUTAGE OF A TRANSMISSION ELEMENT D)UNFORESEEN.
Regulation and Commercial Issues in Bulk Power Generation Tariff By S.C.SHRIVASTAVA, Joint Chief (Engg) CERC, New Delhi 10/7/20151CERC.
Settlement System under ABT Regime -Prepared by -V.Balaji, -Chief Manager(comml), -SRLDC, Bangalore -Presented by -P.Bhaskara Rao -DGM (comml)
1 Regional Energy Accounting, Disputes Mechanism and Resolutions -Rakesh Goyal & Asit Singh. -Executive Engineer, -SRPC, Bangalore.
‘S ORDER ON AVAILABILITY BASED TARIFF PRESENTATION BY C.V.ANAND Sr.Supdt (Comml)
With amendments w.e.f  (1) In these regulations, unless the context otherwise requires,-  (a) ‘Act’ means the Electricity Act, 2003 (36.
Section 7.5 –4 – ii of Indian Electricity Grid code (IEGC): “The summation of station-wise ex-power plant drawal schedules for all ISGS after deducting.
PRESENTATION On National Hydroelectric Power Corporation Ltd. ( A Govt. of India Enterprise) Sector – 33, Faridabad (Haryana), INDIA “Comments on Discussion.
CMD VISIT ON 16-JAN-03 DAILY FREQ COMPARISION JAN-02 & JAN DAYS FREQ COMPARISION JAN-02 & JAN DAYS FREQ JAN DAYS FREQ JAN-02 TYPICAL.
Load Forecast T SRINIVAS MANAGER SRLD C. LINKS PREAMBLE GENERATION ANALYSIS GROWTH OF I/C GROWTH OF I/C Vs DEMAND PHYSICAL INTERPRETATION ELECTRIC CONSUMPTION.
PETITION BY TNEB TO INVESTIGATE ANY GAMING BY THE GENERATORS PETITION NO:- 90/2005 CERC HEARING ON 06-OCT-05.
LOAD FORECASTING T SRINIVAS MANAGER SRLDC. MAIN COMPONENTS OF THE GRID  GENERATION  LOAD  TRANSMISSION NETWORK DETAILS.
Power Trading By P.S.Bami President – India Energy Forum & Former Chairman & Managing Director, NTPC 1.
PRESENT CONDITIONS. FREQUENCY DURATION CURVE , , &
GRID OPERATION AND CONTROL. MAIN COMPONENTS OF THE GRID  GENERATION  LOAD  TRANSMISSION NETWORK.
SRLDC WELCOMES SHRI VISHNUVARDHAN REDDY DIRECTOR(F) KPC.
Indian Power System Peculiarities & Solutions S K Soonee Executive Director NRLDC.
Anil Thomas Asst. Executive. Engineer Southern Regional Power Committee Central Electricity Authority.
SCHEDULING METHODOLOGY The station-wise (Ex-bus) capability would be submitted by the ISGSs in the specified format. ISGSs would declare the capability.
ABT / IEGC CLAUSES While making or revising their declaration of capability, the generator shall ensure that their declared capability during peak hours.
HYDRO TARIFF Commission Tariff Notification 26/03/01 Commission Tariff Notification 26/03/01 Applicable Period 01/04/01 to 31/03/04 Applicable Period 01/04/01.
NLDC 1 Ancillary Services in Indian Context. NLDC 2 Outline Definition Drivers for Ancillary Services Ancillary Services in Indian Context.
Power Trading The Indian electricity sector has grown manifold since independence making India the third largest producer of electricity in Asia. The installed.
IMPACT OF ABT, NETWORK STRENGTHENING ON GRID OPERATION IN KARNATAKA SOUTHERN REGIONAL LOAD DESPATCH CENTRE POWER GRID CORPORATION OF INDIA LIMITED ADVANTAGE.
Workshop on State-Level Electricity Reforms: Firm Choices, Emerging Generation Markets and Externalities “Open Access: Experiences” ALOK ROY General Manager,
1 INTRA – STATE AVAILABILITY BASED TARIFF (ABT) A Presentation on INTRA – STATE AVAILABILITY BASED TARIFF (ABT)
Settlement System under ABT Regime. WHAT IS SETTLEMENT ? “ Settlement means finalisation of payment bill after consumption” To be FAIR and EQUITABLE To.
G1 G2 SERC SLDC SEB/STU State Govt. RLDC REB CTU CERC Central Govt. CEA ISTS ISGS Load L1L2 Intra State System IEGC to Operate on the periphery X=- GLG.
-- Bhanu Bhushan -- < > (August, 2011)
POWER SECTOR REFORMS Grid Operation and Control in the changed Scenerio.
AN OVERVIEW IN RESPECT OF CPP’S IN SOUTHERN REGION STATES.
POWER GRID CORPORATION OF INDIA LTD SOUTHERN REGIONAL LOAD DESPATCH CENTRE in 2 nd SRPC MEETING 30 TH OCTOBER 2006 HYDERABAD GRID EVENTS AND ISSUES.
Availability Based Tariff (ABT) in Northern Region.
Demarcation of responsibilities (as per IEGC) 1. REGIONAL GRID SHALL BE OPERATED AS LOOSE POWER POOLS WITH STATES HAVING FULL OPERATIONAL AUTONOMY. 2.SYSTEM.
PRESENT CONDITIONS. FREQUENCY DURATION CURVE , , &
AVAILABILITY BASED TARIFF AND SCHEDULING MECHANISM.
NORTHERN REGIONAL LOAD DISPATCH CENTER 1.Revision Of Ceiling Of UI Rates and slope. 2.Revision Of Schedule after a Transmission Constraint is over. 4.RLDC’s.
SOUTHERN REGIONAL GRID ▀ Centre Generating Stations in the Region are Ramagundam Super Thermal Power Stn. : 2,600 MW (200x x4) Neyveli Lignite Corporation.
Issue of Declared Capacity (DC), and Actual Generation (AG) by Generating Stations Hon’ble Commission has issued Interim order dated 19/ directing.
Demarcation of responsibilities (as per IEGC) 1. REGIONAL GRID SHALL BE OPERATED AS LOOSE POWER POOLS WITH STATES HAVING FULL OPERATIONAL AUTONOMY. 2.SYSTEM.
INJECTING UTILITYSTATEEXPORT (MU) TNEBTAMILNADU673 KPTCLKARNATAKA205 KSEBKERALA1792 APPCCANDHRA PRADESH426 JINDALKARNATAKA274 KPCLKARNATAKA593 JSWELKARNATAKA1058.
Southern Regional Power Committee Central Electricity Authority.
AVAILABILITY BASED TARIFF. - Tariff structures - Two part tariff - Concept of ABT - ABT structure - Expectations from OEMs/Utilities Session outline.
MERIT ORDER SCHEDULING AND DESPATCH V. K. AGRAWAL NRLDC.
OPEN ACCESS IN INTER STATE TRANSMISSION 29 TH MARCH TH MARCH 2004.
TARIFF DETERMINATION: GENERATION AND TRANSMISSION
POWER GRID CORPORATION OF INDIA LIMITED Northern Regional Load Despatch Centre (NRLDC) WELCOMES TANZANIAN DELEGATION 26th August 2003.
IN ADDITION OF UI RATE CORROSPONDING TO FREQUENCY OF 49
Draft Proposed Regulations on Terms & Conditions of Tariff
Draft Proposed Regulations on Terms & Conditions of Tariff
Economic Operation of Power Systems
Hon’ble Commission has issued Interim order dated 19/ directing :
GRID STATUS – PRE - ABT Very wide Frequency fluctuations
“ MERIT ORDER SCHEDULING AND
Impact of Wind Farms Aggregation on Large System Scheduling Cost Under Frequency Linked Deviation Settlement Mechanism Presented by Anoop Singh Authored.
Presentation transcript:

Grid Operation --- Role of RLDC

Contents Load Generation Balance Electricity Accounting Real Time Trends ABT Feedback Inter Regional Exchanges Loading of Transmission Network

LOAD GENERATION BALANCE

LOAD DIVERSITY The unique load curve of different identities due to varied nature of load / requirements results in the overall load diversity.

DEMAND ESTIMATION Availability = Own Generation (+) Entitlement from Grid (+) Bilaterals

ENTITLEMENTS = Fixed Shares + Unallocated Shares

FIXED SHARES Allocation to States from the Central Sector Stations in terms of Percentages which generally remain fixed. UNALLOCATED SHARES Allocation to States from Central Sector Stations in terms of Percentages which are changed on seasonal basis and / or under typical conditions as decided by Govt. of India.

ELECTRICITY ACCOUNTING ABT vis-à-vis Pre-ABT Period

Components of inter-utility tariff (Pre – ABT Mechanism)  Fixed charges  Interest on loans  Depreciation  O & M charges  Return on equity  Interest on Working Capital  Energy charges (fuel cost)  Incentives  Surcharge & other levies  No charge for reactive energy

TENTATIVE COST FOR NTPC THERMAL STATIONS FOR THE MONTH OF DEC 2003 Station Fixed Cost Rs. Cr/yr (1) Average Fixed Cost Rs. Cr/day (2) Average Fixed Cost P / KWh (3) Variable Base Cost P / KWh (4) Variable FPA P / KWh (5) Total Variable Base Cost P / KWh (6) Composite Cost P / KWh (3) + (6) Singrauli Rihand Unchahar – I Anta GPS* Auraiya GPS* DadriGPS G) Dadri (T) Unchahar – II Dadrigas(L) *Rates for mixed fuel (gas+ liquid fuel, naphtha)

Payment to Inter State Generating Stations (ISGS) from beneficiaries under Availability Based Tariff (ABT)  Capacity charges  Energy charges  Unscheduled Interchange (UI)

CAPACITY CHARGE Capacity charge will be related to ‘availability’ of the generating station and the percentage capacity allocated to the state. ‘Availability’ for this purpose means the readiness of the generating station to deliver ex-bus output expressed as a percentage of its rated ex-bus output capability.

ENERGY CHARGE Energy charges shall be worked out on the basis of a paise per kwh rate on ex-bus energy scheduled to be sent out from the generating station as per the following formula Energy charges = Rate of energy charges (paise/kwh) x Scheduled Generation (ex-bus MWh)

Energy Charges (paise/kwh) for Central Sector stations (Dec 2003) Sl. No.Power StationRate (Paise / KWh) 1.Salal Tanakpur Singrauli Rihand Anta/Auraiya/Dadri GT Unchahar Dadri (Thermal)145.00

UNSCHEDULED INTERCHANGE (U I) :  Variation in actual generation / drawal with respect to scheduled generation / drawal shall be accounted for through Unscheduled Interchange (UI).  UI for generating station shall be equal to its total actual generation minus its scheduled generation.  UI for beneficiary shall be equal to its total actual drawal minus its total scheduled drawal.

UNSCHEDULED INTERCHANGE (UI) RATES Average frequency of 15 minute time block UI Rate (Paise / KWh) 50.5 Hz & Above0.0 Below Hz & up to Hz 8.0 Below Hz & up to Hz Below Hz600.0 Between Hz & Hz Linear in 0.02 Hz step

FREQUENCY vs UI PRICE FREQUENCY PAISE/UNIT 49 HZ 50.5 HZ 49.5 HZ 50 HZ 49.5 HZ CORRESPONDS TO RS.4.00 UI PRICE AND FREQUENCY

UNSCHEDULED INTERCHANGES (UI) I.E. DEVIATIONS FROM SCHEDULES  Makes all the players in the grid self-responsive and enhances merit order.  Good UI helps in improving frequency and enables one constituent to help the other (for meeting more consumer demand i.e reducing load shedding)  UI provides the mechanism for on-line displacement of costlier generation by cheaper generation : ultimate optimisation.

REACTIVE ENERGY CHARGES Under ABT, a reactive energy charge in paise/kwh is applicable. The charges would 4.0 paise/kVARh upto 31 st March 2001 and 5% per annum. This would be applicable for reactive power exchanges outside the % voltage band.

REAL TIME TRENDS

ABT FEEDBACK

Singrauli & Rihand Pre ABT(Dec 01-Nov 02)Post ABT(Dec 02-Nov 03) Average MW Declared CapabilityInjection Schedule Unchahar-1 & Pre ABT(Dec 01-Nov 02)Post ABT(Dec 02-Nov 03) Average MW Declared CapabilityInjection Schedule Dadri (T) Pre ABT(Dec 01-Nov 02) Post ABT(Dec 02-Nov 03) Average MW Declared CapabilityInjection schedule Anta, Auraiya & Dadri Pre ABT(Dec 01-Nov 02) Post ABT(Dec 02-Nov 03) Average MW Declared CapabiltyInjection Schedule

INTER REGIONAL EXCHANGES

HCDC Sasaram B-B HCDC Vindhyachal B-B HCDC Gazuaka B-B HCDC Talcher Kolar HCDC Chandrapur B-B Inter Regional HVDC Links

100 MW ISGS Allocations 0000 to 2400 hrs 100 MW WBSEB to J&K 0000 to 2400hrs- PTC 50 MW GRIDCO to DTL-NVVNL 140 MW WBSEB to DTL 0000 to 2400-PTC 100 MW DVC to HVPNL 0000 to 1700 & 2300 to 2400 hrs-PTC 10 MW GRIDCO to HVPNL 0000 to 1700 & 2300 to 2400 hrs-NVVNL MW DVC to DTL- PTC 450

NR BILATERAL AGREEMENTS

LOADING OF TRANSMISSION NETWORK

ECONOMY OF REQUISITIONING FROM GAS STATIONS ON LIQUID FIRING Energy Charges (Liquid Firing) AntaRs. 3.20/unit AuraiyaRs. 3.00/unit DadriRs /unit (approx) UI Rates 49.5 HzRs HzRs HzRs HzRs HzRs Hz & BelowRs Tariff Regulation – Economy and Efficiency vis-à-vis Security

Thank You