Fifth Annual Conference Power Transmission in India
< State Initiatives >
Gujarat Energy Transmission Corporation Limited [ An ISO 9000 : 2008 Company ] 30th April, 2012 Presentation Sequence
• What are some of the key State initiatives under way?
• What are their investment plans in the short and medium terms?
• What are the key issues and concerns from an STU’s perspective? Key State Initiatives Under Way Installed Generation Capacity As on 31.03.2012
Sr. Installed Sector No. Capacity in MW 1 State Sector 4996 2 Private Sector 6325 3 Central Sector 3494 Total 14815*
* Excluding RE capacity – 2884 MW wind + 600 MW Solar + 31.2 MW Bio-Mass Transmission Network Development As on 31.03.2012 Sr. Substations Transmission Transformation Shunt Capacitors in Particulars No. (Nos.) Lines (CKM) Capacity (MVA) MVAR 1 400 KV 11 3189 7725 4631 MVAR 132 KV – 216 MVAR 2 220 KV 79 14852 19400 66 KV – 1317 MVAR 3 132 KV 49 4808 6032.5 22 KV – 78 MVAR 4 66 KV / 33 KV 1131 22108 23795 11 KV – 3020 MVAR Total 1270 44957 4631 56952 4 GETCO Network Status
Maximum Demand Catered in Gujarat System Max Demand Catered (MW) Catered Demand Max
5 Key State Initiatives
Focused Areas for Consistency and long term sustainability
• State Network Development • Renovation & Modernization Equipment Failure • Operation and Maintenance (Condition Monitoring) System Availability Hot line maintenance • Transmission Losses – Reactive Power Management • Intra –State ABT and Open Access • Skill up gradation in Engineering Standard design to reduce project cycle time • Safety Key State Initiatives- Steps towards Smart Grid Switching over to Digital technology Pilot Project on Optical CT and Digital Substation Intrastate Energy accounting software Implementation of PMUs and WAMS Adoption of Optical Ground Wire (OPGW) for communication and New unmanned substation operation Technology Hybrid substation switchgear Technology Adoption of advanced condition monitoring equipment Geographical Information System for mapping of transmission assets. Monopole design for transmission towers High Ampacity Conductor Implementation of advanced safety tools Live line and dead line maintenance
7 Key Investment Plan (11th & 12th FYP) 10th & 11th Five Year Achievement
CAPEX (in Rs Cr.)
2500 10th FYP : Rs 882 Cr. 11th FYP : Rs 6137 Cr. 2000
1500
1000 Amount inRs Cr.
500
0 2002- 2003- 2004- 2005- 2006- 2007- 2008- 2009- 2010- 2011- 03 04 05 06 07 08 09 10 11 12 CAPEX (in Rs Cr.) 180 146 148 208 201 401 681 1205 1850 2000 12th Five year Plan
Key Issues and Concerns from STU’s Prospective Key Issues and Concerns
Tariff based bidding in Intrastate Transmission
Network Development – Cost constraints to pay RoW cost and forest clearance
Smart Grid Solution: Though we talk, Not many companies are ready with full end
to end solution with modular features.
Land for Substations – Ban on use of Gaucher Land
Aged Assets – We cannot ignore it, so Renovation and modernization is essential
Skilled manpower both Executive & Non-executive
Renewable Energy Integration – As high as 30% of total installed capacity
Lack of Inter-State line – Renewable Energy flow not taken care
10th & 11th Five Year Network Addition & 12th Five year Plan
•392 no of sub-stations, which are more than last 14 years cumulative figures prior to 2007 •120% increase from 10th FYP to 11th FYP • Major focus on 66 KV Substation (375 nos of 66 KV S/S constructed in 11th FYP) •First 400 KV Sub-station in South Gujarat and Kutch Region – 400 KV Kosamba & Varsana 10th & 11th Five Year Achievement & 12th Five year Plan
•9786 CKM of tr. line, which are more than last 13 years cumulative figures prior to 2007 •123% increase from 10th FYP to 11th FYP • Major focus on 400 KV & 66 KV Transmission lines •First 400 KV link between Kutch to Saurashtra (400 KV Mundra-Varsana-Hadala) AGATHALA
CHARANKA SAMI
VARSANA BHIMASAR
KUKMA
LUNAWADA
BHAT RAJPUR PIRANA DUDHREJ TATA UMPP, Adani, Mundra LALPAR Mundra
BOTAD KANGASYALI
BHOMIYADAR
WAGRA
KOSAMBA
SHAPUR
GPPC TPS R&M Planning – Key Factors Why need of R&M ? • 1600 Kms of coastal line with wind pressure/ creek areas. • Chemically polluted industrial zone. • Challenge of uninterrupted & quality power supply on 24 X 7 basis due to frequent equipment failure and tripping of lines. • Inadequate capacity and obsolete design.
Ageing of Sub Stations (2006-07) Ageing of Transmission Lines (2006-07)
> 30 Yrs > 30 Yrs 15% 0 - 10 Yrs FY 2006-07 0 - 10 Yrs 22% 33% 21-30 Yrs 33% 31% of substations & 16% 21 - 30 Yrs 38% of Transmission 16% lines are more than 20 years old. 11 - 20 Yrs 11- 20 Yrs 36% 29% Equipment Failure (%)
2.5
2
1.5
Failure 1
0.5
0 X'mer CT PT LA CB Equipments
2006-07 2007-08 2008-09 2009-10 2010-11 System Availability Hotline Maintenance The hot-line water washing machine mounted on vehicle is put in service since Feb’11.( Designed by GETCO) Open Access Beneficiaries Sr. No. Name of LTOA Beneficiary % age Allocation 1 DGVCL 27.1766% 2 MGVCL 13.4559% 3 UGVCL 24.3135% 4 PGVCL 31.6908% 5 GUVNL - For Licensee 0.0575% 6 GSFC -For GIPCL Share 0.4232% 7 GACL -For GIPCL Share 0.2939% 8 GAIL -For GIPCL Share 0.0118% 9 ONGC-Hazira CPP wheeling 0.1017% 10 ONGC-Ankl. - CPP wheeling 0.1155% 11 GACL - CPP Wheeling 0.0872% 12 Searchchem - UPL CPP wheeling 0.0766% 13 SAL Steel Ltd. - wheeling 0.0981% 14 Heavy Water Plant-DAE 0.0855% Sr. No. Name of MTOA Beneficiary % age Allocation 1 Jindal Saw Ltd 0.0726% 2 Torrent Energy Ltd (GUVNL) Dahej 0.0726% 3 Torrent Power Limited (GUVNL) 1.0170% 4 Torrent Power Limited (SUGEN) 0.7265% 5 Ultra Tech Cement Ltd-Surat 0.0291% 6 Ultra Tech Cement Ltd-Jafrabad 0.0944% Total 100.000% 22 Short Term Open Access Application FY 11-12
Month No of Applications Approved Reject April'11 88 84 4 May'11 59 56 3 June'11 78 76 2 July'11 57 51 6 Aug'11 55 42 13 Sept'11 81 58 23 Oct'11 80 70 10 Nov'11 92 75 17 Dec'11 146 132 14 Jan'12 140 136 4 Feb'12 131 122 9 Mar'12 180 168 12 TOTAL 1187 1070 117
Renewable Power Integration: Capacity addition in MW Solar Capacity Addition (MW) Addition Capacity Solar
24 Transmission Losses Safety: Our Prime Concern Digital Sub Station Optical Current Transformer
28 Proposed Architecture of ABT software:
Meter N Meter Meter
Data collecting Unit (In Station Data collecting Unit (In Data collecting Unit (In where more than one meter) Station where only one Station where only one Field Level meter) meter)
Control Center level Communication
Router & Firewall SCH USERS 1……N
SEPARATE ABT LAN ABT USERS 1……N
OA USERS 1……N
Meter Data Database Server 1 Database Server 2 Communication server (Active) (Passive) Data Processing Server (ABT Software Data Acquisition server Cluster connectivity server)
Redundant connectivity Storage • The complexity of Gujarat Grid increased with integration of IPP, UMPP, CPP, Non- conventional Energy sources like Wind, Solar, Bio-mass Generation and increase in Transmission Infrastructure in the State. • Reduce Manual Intervention so less Chances of Error. • To address all complexities of Energy Accounting and scheduling methodology • Future changes can be implemented smoothly, safely and timely. Proposed Architecture of PMUs and WAMS:
• It is one of the Prime Project towards the journey of Smart Grid Technology. • WAMS facilitate the system operator to know Dynamic behavior of the system • PMU data is used to design many analytics software like Dynamic state estimator, Oscillation stability, Voltage stability which are intelligent tools to system operator to run system safe and reliable manner in real time. • It can be concluded that if present SCADA system is X-ray status of the system and WAMS is the MRI status of the system. • It will change the mind set of system operator from conservative steady state to real time Dynamic status. Geographical locations for Solar power projects Geographical locations for Solar power projects Charanka Solar Park Solitaire, Mitha-15MW JSW Energy, Deodar-5MW Projects Comiissioned – 214 MW Precious, Akhaj-15MW Solar Semiconductor, Ajwada-20MW Projects to be Comiissioned – Sand land-25MW Solitaire (MoserBear), Mudetha-15MW 36 MW Torrent Power, Savpura-25MW NTPC, Morwada-50MW Adani Ltd – 40MW Solar Semi Conductor–20 MW Welspun Urja-40MW GMDC -5 MW Cargo Motors, Rapar – 25 MW S J Green Park Energy – 5MW
Euro Solar, Bhachau–5MW Back Bone Enterprise – 5 MW Azure Haryana – 10 MW Konark Gujarat – 5 MW Aatash Power – 5MW ICML – 9 MW Zeba Solar – 10 MW Lanco, Bhadrada-5MW India Solar Ray – 10MW Lanco, Chandiyala – 15 MW Ambit Advisory – 5MW PLG Power, Sami-20MW Taxus infrastructure-5MW Astonfield Solar – 11.5 MW PLG Photovoltaic-20MW Welspun Ltd – 15 MW JaiHindi – 5 MW Unity 5 MW
Sun Borne – 15MW Responsive – 25 MW Ujjwala -25 MW Chhatel (Ispat) -25 MW Dreisatz MySolar-15MW MySolar24 – 15MW Tathith Energies- 5 MW
Azure Power, Dhama –5 MW ACME– 15 MW Tata Power Limited -25 MW ESP Urja Ltd – 5 MW Millenium Synergy, Dasada – 10 MW Kemrock – 10 MW Loroux Bio Energy – 25 MW EMCO – 5 MW aCBC solar -10 MW WAA Solar – 10 MW Ganges Green – 25 MW Visual Percept – 25MW Environmental – 10 MW Ganeshwani – 5 MW Green Infra -10 MW GIPCL – 5 MW Aravli Infra 5 MW GHI Energy - 5 MW Sunkon Energy -10 MW Mono Steel – 10MW MoserBear – 15MW APCA Power – 5MW Hiraco Renewable – 20MW
Blue colour – Projects commissioned Red colour - Projects to be commissioned 31 SPARE SPARE 15MW 45MW 55MW 45MW SPARE SPARE 40MW 40MW SPARE
GPCL LANCO KIRAN AVTAR GMR 5MW 15MW 20MW 5MW 25MW
SUN SURANA GPPC ROHA AES ZF SANTALPUR CLEAN LINK CABLE T0 5MW 5MW 25MW 15MW 5MW 1 2 GETCO 25MW 66 / 11KV S/S
F2 F1
66 KV BUS SUN RADHANPUR YANTRA EMAMI INSPIRA ALEX NKG EDISON 2 1 5MW 10MW 15MW 25MW 10MW 25MW
F14 F13 F12 F11 F10 F9 F8 F7 F6 F5 F4 F3 F2 F1
66KV BUS
CAPACITY 100MVA 100MVA GROUP SOLAR DEVELOPER'S NAME MW 66/220KV 66/220KV TR-1 TR-2 M/S NKG INFRASTRUCTURE LTD. 10MW M/S ZF STEERING GEAR (INDIA) LTD. 1 05MW 40MW 25MW M/S GMR GUJARAT SOLAR POWER PVT.LTD. 220KV BUS M/S ALEX ASTRAL POWER PVT.LTD. 25MW 2 40MW M/S AES SOLAR ENERGY GUJARAT PVT.LTD. 15MW M/S AVTAR SOLAR 05MW SHIVLAKHA DEODAR 3 M/S ROHA ENERGY PVT.LTD. 25MW 45MW 220KV LINE 220KV LINE M/S INSPIRA SOLAR ENERGY LTD. 15MW M/S KIRAN ENERGY SOLAR POWER PVT.LTD. 20MW 4 M/S SUN CLEAN 25MW 55MW M/S EMAMI CEMENT LTD. 10MW M/S LANCO INFRATECH LTD. 15MW 5 M/S GPPC 05MW 45MW 66KV CKT.WITH 3+1 M/S SUN EDISON 25MW SPARE 66KV CABLE M/S YANTRA 05MW CHARANKA SOLAR PARK 6 M/S SURANA TELECOM & POWER LTD. 05MW 15MW SOLAR DEVELOPER M/S GPCL 05MW TOTAL 240MW