Our Projects

CAPITAL PROJECTS AND REINFORCEMENT PROJECTS

Procurement Notices

    INVITATION TO TENDER FOR THE SUPPLY OF SUBSTATION EQUIPMENT AND MAINTENANCE MATERIALS.pdf - November 19, 2019 - Click to download

    PROCUREMENT OF TRANSFORMER OIL FOR MAINTENANCE OF TRANSMISSION EQUIPMENT.pdf - November 5, 2019 - Click to download

    INVITATION FOR EXPRESSION OF INTEREST FOR THE TECHNICAL, ENVIRONMENT AND SOCIAL FEASIBILITY STUDIES FOR THE CLOSING OF THE 330kV LAGOS LOOP (AKANGBA-IJORA-ALAGBON 330kV DC TRANSMISSION LINE AND THE CONS.pdf - November 5, 2019 - Click to download

    INVITATION TO TENDER FOR THE RECONDUCTORING OF SOME TRANSMISSION LINES WITH GAP CONDUCTOR.pdf - October 22, 2019 - Click to download

    INVITATION FOR TENDER FOR PERFORMANCE CONTRACT FOR COMPRESHENSIVE MAINTENANCE OF THE 330kV ALAOJI IKOTEKPENE.pdf - October 21, 2019 - Click to download

    INVITATION FOR BIDDERS-BUYERS FOR THE DISPOSAL OF HELICOPTERS AND SPARE PARTS.pdf - October 8, 2019 - Click to download

    REQUEST FOR EXPRESSION OF INTEREST (CONSULTING SERVICES) FOR THE NIGERIA EXPANSION TRANSMISION PROJECT (NTEP-1).pdf - September 26, 2019 - Click to download

    INVITATION FOR THE PREQUALIFICATION OF CONTRACTORS FOR THE CONSTRUCTION OF 10KM 330KV DC TRANSMISSION LINE FROM 330x132x33KV LEKKI SUBSTATION TO EKO ATLANTIC CITY AND 2X60MVA TRANSFORMERS 132x33KV GIS SUBSTATION LAGOS STATE.pdf - September 11, 2019 - Click to download

    INVITATION FOR PREQUALIFICATION FOR THE CONSTRUCTION OF 330kV WAPP NORTH CORE TRANSMISSION LINE BIRNIN KEBBI NIGERIANIGER BORDER (62KM) AND PRÉQUALIFICATION POUR LA CONSTRUCTION DÉ EN MAIN (EPC) DU POSTE DE TRANSFORMATION 225.pdf - September 11, 2019 - Click to download

    PREQUALIFICATION POUR LA REALIZATION CLÉ EN MAIN (EPC) DES POSTES DE TRANSFORMATION ÉLECTRIQUE HTB ET EXTENSION DE CENTRE DE DISPATCHING WAPP DORSALE NORD AU NIGER ET AU BÉNIN AND PRÉQUALIFICATION POUR LA CONSTRUCTION DÉ EN M.pdf - September 11, 2019 - Click to download

    EXTENSION OF INVITATION FOR PREQUALIFICATION.pdf - AUGUST 14, 2019 - Click to download

    WAPP EXPRESSION OF INTEREST FOR 330 kV MEDIAN INTERCONNECTION PROJECT.pdf - August 8th 2019 - Click to download

    WAPP Advert.pdf - - Click to download

    TCN Tender Advert7 - June 24, 2019.pdf - - Click to download

    TCN Tender Advert3.pdf - - Click to download

    TCN Tender Advert4.pdf - - Click to download

    Request for Bid - April 1, 2019.pdf - - Click to download

    TCN Tender Advert5 - May 28, 2019.pdf - - Click to download

    TCN Tender Advert6 - June 7, 2019.pdf - - Click to download

    TCN Tender Advert1.pdf - TCN Tender Advert1 - Click to download

    TCN Tender Advert2.pdf - - Click to download

Project Documents

TREP - STRATEGY FOR REHABILITATION AND EXPANSION TO ACHIEVE GRID EXPANSION STABILITY AND RELIABILITY.pdf - Click to download

IMPLEMENTATION OF MILESTONES OF TREP FROM FEBRUARY 2017 TO OCTOBER 2019.pdf - Click to download

SN

PROJECT TITLE

NAME OF CONTRACTOR

DATE OF AWARD

EXPECTED DATE OF COMPLETION

COMPLETION %

1 "Gagarawa 2x60 MVA, 132/33 kV substation, Jigawa State" Power Control & Appliances 2011 October, 2019 42
2 2x60MVA, 132kV substation at Kwoi and 2x132kV line bays extension at Keffi substation LEEEC July, 2012 June, 2020 22
3 Keffi-Kwoi-Kachia 132kV DC transmission line Aster Infrast/Aster PVT Ltd Dec., 2011 April, 2020 22
4 2x60MVA, 132kV substation at Kachia and 2x132kV line bays extension at Kwoi substation Esterbag Engineering Ltd Dec., 2011 Dec., 2019 25
5 Kafanchan 132kv 2 x 60MVA Substation Kaduna State Valenz Holding Ltd Dec, 2007 Dec., 2018 85
6 Construction of 2x330kV Line Bay Extensions at Kaduna (Mando) and Kano (Kumbotso) Exernegia Ltd Dec., 2011 Dec., 2019 25
7 Katsina- Daura 132kv DC line Katsina State Optic 1 Ltd Dec, 2007 Sept. 2018 94
8 200Km 132kV DC line at Katsina-Dutsinma-Kankara-M/Fashi, Skipper Electricals Ltd Jan. 2011 Jan. 2020 45
9 Yelwa - Yauri 2 x 30/40MVA S/S and 100KM of 33KV Line Kebbi State "Valenz/ Electromontaz" Dec, 2007 Dec., 2018 67
10 2x30MVA,132/33kV substation at Kurfi and 2x132KV Line Bays extension at Katsina Gracehill Energy Nig. Ltd Jan. 2011 Jan. 2020 25
11 2x30MVA,132/33kV substation at Dutsinma and 2x132KV Line Bays extension at Kurfi Hoquado Limited Jan. 2011 April. 2020 15
12 2x30MVA,132/33kV substation at Kankara and 2x132KV Line Bays extension at Dutsinma PEL-NESPAK JV Jan. 2011 Jan. 2020 15
13 2x30MVA,132/33kV substation at Malumfashi and 2x132KV Line Bays extension at Kankara Monotech Input/Bangladesh Jan. 2011 May, 2020 25
14 Kano- Walalanbe 132KV Line (Turn in and out of Dan agundi-Dakata 132KV single Cct Line) and 2 x 30/40MVA S/S at Walalambe Kano State GIT Dec, 2007 March, 2019 67
15 Grid Rehabilitation And Reinforcement, Katsina, Hadejia, Kontagora. Junot Construction Aug. 2010 Dec., 2018 90
16 1X30MVA, 132/33 kV Substation at Wudil, Kano State CON Engineering Aug. 2010 October, 2018 70
17 Kaduna Plant to Mando Road and Substation Extension Hundai Energy & Construction Ltd/ IPDC Ltd Dec., 2010 Feb., 2020 15
18 Kano-Katsina 330kV DC Transmission line Gammon India Dec. 2010 August. 2019 35
19 2x150MVA, 330/132kV + 2X60MVA 132/33kV S/S at Katsina. Barme/ESL Dec. 2010 July. 2019 35
20 Kumbotso (Dauira)-Dambatta 132kV DC Transmission line. Icom Tele Ltd Dec. 2010 Dec. 2020 15
21 PEL-NESPAK JV Union Allied Engr'g Ltd Dec. 2010 Dec. 2019 50
22 Construction of Kaduna - Jos 330kV DC T/L Dextron Engineering Dextron Engr. Ltd April, 2019 75

SN

PROJECT TITLE

NAME OF CONTRACTOR

DATE OF AWARD

EXPECTED DATE OF COMPLETION

COMPLETION %

1 1X150MVA 330/132kV substation at Maiduguri Best & Crompton Eng. Africa Ltd Dec., 2011 Dec., 2018 65
2 1X150MVA, 330/132kV & 1X 60MVA 132/33kV substation at Damaturu. 132kV line bay extention at Gombe Parsian High VoltageDiv./ Cartlark Int'l Ltd April. 2006 Nov. 2018 90
3 Yola-Song-Little Gombi-Mubi-Gulak 132kV DC transmission line Skipper Electricals Ltd Dec., 2011 June, 2019 18
4 2x60MVA, 132kV substation at Mubi and 2x32kV line bays extension at Little Gombi substation Hyundai/Richfield Technologies Ltd Dec., 2011 April, 2019 35
5 2x60MVA, 132kV substation at Gulak and 2x132kV line bays extension at Mubi substation Concept Eng'g/Chanref Nig. Ltd Dec. 2011 August, 2019 30
6 2x60MVA, 132kV substation at Song and 2x132kV line bays extension at Yola substation Qingdao Wuxiao/Ahmin Technology & Power Systems Ltd Dec., 2011 June, 2019 30
7 2x60MVA, 132kV substation at Little Gombi and 2x132kV line bays extension at Song substation Qingdao Wuxio/Ahmin Tech & Power System Dec., 2011 Aug., 2019 30
8 Damaturu - Gashua 132kv DC Transmission Line (245km) Dextron Engr. Ltd Nov., 2017 Dec., 2019 5
9 Gashua - Hadejia 132kv DC Transmission Line (150km) Jiyoti Structures LTD Yet to Commence Yet to Determine 0
10 2x 60MVA, 132/33KV Substation at Gashua and 2x 132KV Line bays Extension at Damaturu and Hadejia Concept Eng./Chanref Yet to Commence Yet to Determine 0

SN

PROJECT TITLE

NAME OF CONTRACTOR

DATE OF AWARD

EXPECTED DATE OF COMPLETION

COMPLETION %

1 2x60MVA, 132/33kV Substation at Okeagbe and 2x132kV line bays extension at Obajana Power control & Appliances Dec., 2011 May, 2019 45
2 Obajana-Okeagbe 132kV DC transmission line Everest Infra Energy/Dyehnun Ventures Dec., 2011 Mar. 2020 15
3 132kV DC line from Ganmo-Shonga Aster Infrast/Aster Teleservices Dec., 2010 Dec., 2019 27
4 2x60MVA 132/33kV Substation at Shonga with 2x132KV Line Bays extension at Ganmo. New World/Ruoga Energy Dec., 2010 Dec., 2019 18
5 Kaduna - Jos 330KV DC Line Plateau - Jos States Dextron Engr. Ltd Jul., 2010 Dec., 2018 75
6 Makere - Pankshin 132KV DC Line Plateau State Mogabs Nig. Ltd Dec., 2017 December, 2018 95
7 Lokoja - Obajana 330KV Line and Substation Elem & Elgo / Steers Dec., 2007 Indeterminate due to court issue 47
8 2X150MVA, 330/132KV Substation at Obajana Payma Bargh/ Cartlark Dec., 2007 Apr., 2010 50
9 Akwanga - Lafia 132kV DC line Bateman Jan., 2011 Apr, 2019 15
10 Construction of 2x30/40MVA, 132/33kV S/S at Lafia in Nasarawa Monotech Input/Bangladesh Jan., 2011 May,, 2019 47
11 Katampe-National Stadium 132kv DC line, FCT, Abuja Energo Nigeria Ltd Dec., 2010 Dec., 2018 95
12 Kukwaba 2x60MVA, 132/33kV substation North China Power Egnineering 2007 Jul., 2017 96
13 Nsukka - Ayangba 132KV DC Line: Enugu, Kogi States West Com Ltd/PPCL Aug., 2009 Mar., 2019 63
14 132/33KV Substation at Ayangba Kogi State Omen International Ltd. Dec., 2007 Dec, 2019 14
15 2x 60MVA 132/33KV substation at Egbe and 2x132KV line bays extension at Omu-aran TBEA Hengyang Transformer Co. Ltd Jun., 2012 Dec., 2018 85
16 Installation of 60MVA 132/33KV Transformer Including extension to 132KV busbar and new 132KV bay at Okene Substation CONTINENTAL ENGINEERING Jun., 2014 Jan., 2019 45
17 Installation of 150MVA 330/132KV Transformer Including extension to 330KV busbar and new 330KV bay at Katampe Substation BIGEN ELECTRIC / EXENERGIA POWER LTD Jun., 2014 Dec., 2018 45
18 Installation of 150MVA 330/132KV Transformer Including extension to 330KV busbar and new 330KV bay at Shiroro Substation BARME / ELECTRICAL SOLUTION Jun., 2014 Dec., 2018 42
19 Grid Rehabilitation And Reinforcement, Katsina, Hadejia, Kontagora Junot Construction Aug., 2010 Sept., 2018 94

SN

PROJECT TITLE

NAME OF CONTRACTOR

DATE OF AWARD

EXPECTED DATE OF COMPLETION

COMPLETION %

1 Onitsha - Oba - Nnewi - Ideato- Okigwe 132kv DC Line Ashtavinayaka/Bran Engineering Dec., 2012 Feb, 2019 45
2 2x60MVA,132/33kV substation at Amasiri, Afikpo with 2x132kV line bay extension at Abakaliki North China Power Engineering Lt & NCEP Nig. Ltd Feb. 2011 Sept. 2019 16
3 Onitsha-Ifitedunu 132kV DC transmission line (45km). Sinotec/CCC JV Yet to commence. Yet to commence. 0
4 2x60MVA, 132/33kV substation at Ifitedunu and 2x132kV line bays extension at Onitsha. MBH Power Ltd Yet to commence Yet to commence 0
5 Ugwuaji-Nenwe 132kV DC transmission line Ashtavinayaka/Bran Engineering Dec. 2011 April, 2019 30
6 2x60MVA, 132kV substation at Nenwe and 2x132kV line bays extension at Ugwuaji substation Metro Elektrik 2011 December, 2019 2
7 Nnenwe-Mpu 132kV DC line Power Project/Dorman Long/Genesis Dec., 2011 Aug., 2019 22
8 Abakaliki-Amasiri132kv DC Line Flour Engineering/Euroafric Dec., 2011 DEC., 2018 67
9 Umuahia - Mbalano 132KV Line Pivot Engineering April., 2011 DEC, 2018 76
10 Ohafia - Arochukwu 132KV Line Mogabs Nig. Ltd Sept. 2008 DEC,, 2018 78
11 2x60MVA,132/33kV substation at Mpu, with 2x132kV line bay extension at Nnenwe Ashtavinayaka/Bran Engineering Dec., 2010 May, 2018 20
12 Nsukka - Ayangba 132KV DC Line Enugu-Kogi States West Com Ltd/PPCL Aug. 2009 DEC., 2018 63
13 2x60 MVA, 132/33 kV substation at Ideato and 2 x132KV Line Bays at Okigwe Ashtavinayaka/Bran Engineering Nov., 2009 Apr, 2019 73
14 132KVA/33 at Aboh -Mbaise S/S Ashtavinayaka/Bran Engineering Nov., 2009 Apr, 2019 75
15 Owerri - Abo Mbaise 132KV DC Line Bateman Jan., 2011 Dec., 2018 20
16 2 x 330KV, Line bay extension at Kaduna, Jos and Onitsha Kaduna-Plateu -Anambra States Valenz Holding Ltd Nov., 2009 Jul., 2018 70
17 2x60 MVA, 132/33 kV substation at Oba and 2x132KV Line Bays at Nnewi Xian/GIT Engineering Dec., 2009 Dec., 2019 45
18 Arochukwu 2x30/40MVA 132/33kV substation Abia Omen Int'l Ltd. Sept., 2011 Dec., 2018 92
19 Okigwe 2x30/40MVA 132/33kV Substation, Imo Union Allied Engr'g Ltd Sept., 2001 Jun, 2019 90
20 Umuahia-Ohafia 132kv SC line Abia Harlesden Engineering Ltd Sept., 2001 Dec., 2018 60
21 Ohafia 2x30/40MVA 132/33kV substation. Abia Union Allied Engr'g Ltd Sept., 2001 Nov., 2018 82
22 Mbalano 2x30/40MVA 132/33kV substation. Abia Union Allied Engr'g Ltd Nov., 2001 Nov., 2018 85
23 2x 60MVA,132/33kV at Nnewi & 2 x132kV line bays at Onitsha T/S. Valenz Holdings (Nig) Ltd. Apr., 2006 Aug., 2018 80
24 Reconductoring of Alaoji-Onitsha 330kV (138km) line. Yet to be awarded. 0
25 Reconductoring of Onitsha-New Haven 330kV (96km) line Dalkiranlar Enerji Ltd Dec., 2012 Jan., 2019 15
26 Reconductoring of Aba-Itu 132kV line Optic 1 Nig. Ltd Aug., 2012 Jan., 2019 55
27 Reconductoring of Calabar-Itu 132kV Line. HCCT Nov., 2012 Jan., 2019 10

SN

PROJECT TITLE

NAME OF CONTRACTOR

DATE OF AWARD

EXPECTED DATE OF COMPLETION

COMPLETION %

1 2 x 60MVA, 132/33kV substation at Egbe with 2 x 132kV line bays extension at Omu Aran substation. TBEA Hengyang Transformer Co. Ltd March, 2012 March, 2019 85
2 New Abeokuta - Igboora - Lanlate 132kv DC Line and Tee- Off at Igboora- Igangan Lagace Power Limited March, 2013 Dec, 2019 45
3 Omu Aran-Egbe 132kV DC transmission line Aravali Infra Power Ltd June, 2012 Dec, 2019 12
4 Osogbo-Ede 132KV Double Circuit Transmission line Aster PVT/Aster Infrastructures Ltd January, 2011 Completed 2017 100
5 2x150MVA, 330/132/33KV; 2x60MVA, 132kV substation and 4x330kV line bays extension at Akure and 2x132KV Line Bay extension each at Osogbo and benin North MATALEC September, 2011 May, 2019 85
6 2x150MVA, 330/132/33KV; 2x60MVA, 132kV Substation and 4x330kV Line Bay Extension at Olorunsogo MATALEC September, 2011 June, 2019 10
7 2x60MVA, 132/33kV Substation at Ose and 2x132kV line bays extension at Okeagbe S/S Junot Construction March, 2012 Dec 2019 5
8 300km 330kV DC Trx line from Erukan-Omotosho. Energo Nig Limited December, 2010 Dec 2019 34
9 2x150MVA 330/132kV Substation at Omotosho plus 1x60MVA at Omotosho. AK-AY Elektrik Dec, 2010 Dec, 2019 10
10 Benin North-Oshogbo 330KV DC line with one SC turning in and out to New Akure 2X150MVA,330/132KV S/S Gammon India December, 2010 Oct, 2019 49
11 Ganmo -Ogbomosho 132kV DC line Kwara - Oyo State Trennco Power/Eco Energo Group March, 2011 Dec, 2019 30
12 Omotosho-Epe-Aja 330KV DC Line. KEC International Limited Jan. 2011 Nov, 2019 42
13 2 x60MVA 132/33kV S/S at Ogbomosho 1no. 132kV Bay Extension at Ganmo:Oyo & Kwara States Payma Bargh/ Cartlark December, 2007 Dec, 2018 85
14 2x30/40 MVA, 132/33 kV substation at Lalantee plus 2 x132KV Line Bays at New Abeokuta 132/33 kV substation Skipper Electricals Ltd August, 2010 July, 2019 72 To be
15 Transmission - 2x60MVA 132/33KV Substation at Igangan & 132kV Switching Station at Igboora Rhouga Energy Aug. 2010 Aug, 2019 46
16 Construction of 2x60MVA,132/33KV Substation at Ede with 2x132KV Line Bays extention at Oshogbo Cobra-Sibga JV March, 2011 September, 2019 30
17 2x60 MVA/132/33KV S/S at Odogunyan, 2X60MVA/132/33KV S/S at Ayobo & Ikeja West-Ayobo 132KV D/C line LAGA/CE September, 2009 Odogunyan commissioned May, 2018 90
18 Construction of Ikorodu-Odogunyan-Shagamu 132KV D/C T/L PPCL/West Com JV August 2009 March, 2019 75
19 Akure-Ado Ekiti 132kv SC line Ondo - Ekiti "Siemens Ag + Dextron Engineering Ltd" May 2003, September 2008 June, 2010 100
20 Construction of Outdoor 33KV switchgears at Shagamu Substation Laga Ce Power June 2012 April 2018 55
21 Reinforcement of Ibadan North Substation with 60MVA 132/33kV Transformer Dynamic Power Ltd 2013 Completed in 2013 100
22 Reinforcement of Alagbon Substation Edigton 2013 2018 0
23 Construction of outdoor switchgear at Oworoshoki Edigton 2013 2018 0
24 Construction of Outdoor Switchgear at Akangba Substation Lek-Teck Nig. Enterprises 2013 Comlpeted 100
25 Installation of 300MVA 330/132KV Transformer Including extension to 330KV busbar and new 330KV bay at Akangba Substation MBH POWER LTD 2013 Dec, 2018 75
26 Installation of 300MVA 330/132KV Transformer Including extension to 330KV busbar and new 330KV bay at Ikeja West MBH POWER LTD 2013 March, 2019 70
27 Installation of 300MVA 330/132KV Transformer Including extension to 330KV busbar and new 330KV bay at Egbin Substation BARME / ELECTRICAL SOLUTION 2013 Feb, 2019 45
28 Installation of 150MVA 330/132KV Transformer Including extension to 330KV busbar and new 330KV bay at Osogbo Substation BIGEN ELECTRIC 2013 June, 2019 40
29 Installation of 100MVA 132/33KV Transformer Including extension to 132KV busbar and new 132KV bay at Ogba Substation POWER CONTROL AND APPLIANCES 2013 March, 2019 70
30 Installation of 100MVA 132/33KV Transformer Including extension to 132KV busbar and new 132KV bay at Ikeja West (Ayobo) Substation POWER CONTROL AND APPLIANCES 2013 June, 2019 70
31 Installation of 100MVA 132/33KV Transformer Including extension to 132KV busbar and new 132KV bay at Egbin Substation T&D TECHNOLOGY LTD 2013 June, 2019 65
32 Installation of 60MVA 132/33KV Transformer Including extension to 132KV busbar and new 132KV bay at Sagamu Substation DALKIRANLAR ENERGY LTD 2013 June, 2019 65
33 Installation of 30MVA 132/33KV Transformer Including extension to 132KV busbar and new 132KV bay at Iseyin Substation DALKIRANLAR ENERGY LTD 2013 Dec, 2018 55
34 Installation of 40MVA 132/33KV mobile Substation at Iwo Substation IN-HOUSE 2013 Completed in 2013 100
35 Construction of Plinth for 40MVA mobile Transformer at LEKKI and transportation of mobile transformer from Alimosho T.S to Lekki T.S DYNAMIC POWER CONSTRUCTION LTD AND BALTIC AIR 2013 Completed in 2013 100

SN

PROJECT TITLE

NAME OF CONTRACTOR

DATE OF AWARD

EXPECTED DATE OF COMPLETION

COMPLETION %

1 1x60MVA, 132/33kV substation reinforcement at Ukpilla substation, Edo State Power control & Appliances Feb., 2012 Dec., 2018 96
2 DC 132kV line from Alscon to Ibom Power and Switching Station to link the GIS at Alscon with associated bay extensions at Ibom Power - Akwa Ibom State KEC Int'l Ltd; CCC/Pimtek Ltd; Mojec Int'l Ltd 2011 Mar. 2019 85
3 Yenagoa - Oporoma 132kv DC Transmission Line (50km) Fluor Eng/ Eurafric Dec., 2012 Dec., 2019 0
4 2x 60MVA, 132/33KV Substation at Oporoma and 2x 132KV Line bays Extension at Yenegoa Substation Alfa/Cobra/Feeders JV Dec., 2012 Dec., 2019 0
5 4x330KV Line Bays extension at each at Delta and Port Harcourt Substations MBH Power Dec., 2011 Dec., 2018 65
6 Design, manufacture, supply, installation & commissioning of the Reinforcement of Afam TS with 150MVA, 330/132/33KV Transformer & Construction of Afam IV-Afam III Double Circuit 132KV Line Taleveras Group/UMEL Dalekomontaza Sept., 2009 Sept., 2018 98
7 Delta-Port Harcourt 330kV DC Transmission line Icom Tele Ltd Apr., 2011 Dec., 2019 20
8 Obudu - Ogoja 132KV DC Line Cross River State Jilon Elect Engr; Sinotec/Elements/KEC International ltd Dec., 2007 Sept., 2018 85
9 2x30/40MVA 132/33kV S/S at Ogoja, Cross River State Income Electrix Ltd Dec., 2007 Nov., 2018 78
10 Reconductoring of Calabar-Itu 132kV Line HCCT Nov., 2012 Sept,, 2018 35
11 Installation of 60MVA 132/33KV Transformer Including extension to 132KV busbar and new 132KV bay at Uyo Substation T&D TECHNOLOGY LTD 2013 Completed in April, 2018 100
12 Reconductoring of Aba-Itu 132kV line Optic 1 Ltd Aug., 2012 Apr., 2019 70