| A | 1 | 110/33/11 kv uppur sub station | 110/33/11 | 9.591321795 | 78.92077778 | 110 | Uppur, Tamil Nadu 623525 | Ramanathapuram | NH 32 | ECR | 300 m | SH200 | Nagapattinam Tuticorin | | 105 sq.m | |
| B | 2 | Ervadi | 110/33/11 | 9.226206919 | 78.69184196 | 110 | Keelakkarai, Tamil Nadu | Ramanathapuram | NH 32 | ECR | 10 m | SH200 | Nagapattinam Tuticorin | | 105 sq.m | |
| C | 3 | 110/11 KV PERUMANALUR | 110/11 | 11.21563782 | 77.36257589 | 110 | Perumanallur Power House, 6987+73C, Avinashi, Tamil Nadu 641666 | Thiruppur | NH 544 | Perundurai Coimbatore Rd | 400 m | | | | Yes | 14 km |
| D | 4 | 110/11 KV AVINASHI | 110/11 | 11.18144653 | 77.24593187 | 110 | Tneb Avinashi Substation, 56JW+HCQ, Sembianallur, Avinashi, Tamil Nadu 641654 | Thiruppur | NH 544 | Perundurai Coimbatore Rd | 1km | SH 80 | Avinashi Coimbatore Rd | 39 m | Yes | 3.3 km |
| E | 5 | 110/33-11KV PONGALUR SS | 110/33-11 | 10.9701989 | 77.37926115 | 110 | Pongalur, Tamil Nadu 641667 | Thiruppur | NH 81 | Nagapattinam Coimbatore rd | 62 m | | | | Yes | |
| F | 6 | METTUPATTY SS | 110/22 | 11.66567632 | 78.32455095 | 110 | Mettupatti Substation, Salem - Ulundurpettai Hwy, Tamil Nadu 636106 | Salem | NH 79 | Salem Perambalur rd | 11 m | | | | Yes | |
| G | 7 | MALLUR SS | 110/22 | 11.53408393 | 78.14329258 | 110 | Annamalaipatti, Tamil Nadu 636203 | Salem | NH 44 | Salem Madurai rd | 700 m | | | | Yes | |
| H | 8 | 110/33-11 KV PADIKKASUVAITHANPATTI SS | 110/33-11 | 9.48570114 | 77.61233255 | 110 | Tamilnadu Electricity Board, Padikkasuvaithanpatti, FJP7+728, Chatrapatti - Srivilliputhur Rd, Lakshmiyapuram Puthur, Padikkasu Vaithanpatti, Tamil Nadu 626125 | Virudhunagar | NH 744 | Chatrapatti Srivilliputhur rd | 2 km | SH | Sriviliputhur Chathirpatti | | Yes | |
| I | 44 | 110/33-11 KV VADAKATHIPATTY SS | 110/33-11 | 12.88070218 | 78.867793 | 110 | Ambur, Tamil Nadu | Tirupattur | NH 45 | Chennai Bengaluru | 230 m | | | | Yes | |
| J | 10 | UDAYAPATTY SS | 110/22 | 11.6615068 | 78.2064579 | 110 | K.N. Colony Post, Salem By-Pass, Kamarajar Nagar Colony, Ammapet, Salem, Tamil Nadu 636014 | Salem | NH 179A | Ammapet bypass road | 190 m | | | | Yes | |
| K | 11 | THALAIVASAL SS | 110/22 | 11.58409952 | 78.73590384 | 110 | Attur, Tamil Nadu | Salem | NH 79 | Kallakurichi Salem rd | 170 m | MDR 701 | Mummudi rd | 1.6 km | Yes | |
| L | 12 | AMMAPETTAI 110/11 KVSUBSTATION | 110/11 | 10.72645796 | 78.55501974 | 110 | PHG3+FX4, Ammapettai, Tamil Nadu 620009 | Trichy | NH 45 | Trichy Dindigul rd | 500 m | | | | Yes | |
| M | 13 | SEMMANKUPPAM | 110/22 | 11.65531917 | 79.74076368 | 110 | TANTRANSCO, MP4R+49G, Chennai- Nagapattinam Highway, Sembankuppam, Tamil Nadu 607005 | Cuddalore | NH 32 | Cuddalore Chidhambaram Rd | 120 m | | | | 15*7 m | |
| N | 14 | ARASUR | 110/22 | 11.82290299 | 79.425064 | 110 | Arasur, Tamil Nadu 607107 | Coimbatore | NH 38 | Trichy Tindivanam Rd | 50 m | | | | 15 *7 m | |
| O | 15 | THUMBIPADY 110 KV | 110/22 | 11.8064288 | 78.06072078 | 110 | NH 44, Tamil Nadu 636309 | Salem | NH 44 | Srinagar Kanyakumari rd | 69 m | | | | Yes | |
| P | 16 | 110/33/11 KV THIRUPALAI SS | 110/33-11 | 9.975908724 | 78.13985559 | 110 | Velnagar, Tiruppalai, Madurai, Tamil Nadu 625014 | Madurai | NH 785 | Madurai Elevated Highway | 50 m | SH 72 | Madurai Natham rd | 50 m | Yes | |
| Q | 17 | 110/33 KV Sedubavachathiram SS | 110/33 | 10.25897335 | 79.2836075 | 110 | 775M+J78, Nayagathivayal, Nadiam, Tamil Nadu 614802 | Thanjavur | NH 32 | Pattukkottai Mannarkudi rd | 1.4 km | SH 146 | Mannarkudi Sedubavachtram | 50 m | Yes | |
| R | 18 | KOMARAPALAYAM 110 KV | 110/22 | 11.44488202 | 77.7118185 | 110 | Salem Main Rd, Komarapalayam, Tamil Nadu 638183 | Namakkal | NH 544 | Salem Kochi Highway | 450 m | SH 198 | Salem Main rd | 67 m | Yes | |
| S | 19 | VEPPADAI | 110/22 | 11.39856933 | 77.77587129 | 110 | Kumarapalaiyam, Tamil Nadu | Namakkal | NH 381 A | Pallipalayam Sangari Rd | 290 m | SH 79A | Pallipalayam Sangari Rd | 290 m | Yes | |
| T | 20 | 110/33-11 KV Ayyampettai SS | 110/33-11 | 10.88992325 | 79.18778784 | 110 | Ayyampet Electric Substation, Solamangalam Road, Ayyampettai, Pasupathikoil, Tamil Nadu 610104 | Thiruvarur | NH 36 | Manthai Karuppur Main rd (Via Solamangalam rd) | 300 m | | | | Yes | |
| U | 21 | 110/33-22-11KV MANGALAMEDU SS | 110/33-22-11 | 11.3522541 | 78.95352661 | 110 | Peraiyur, Tamil Nadu | Madurai | NH 38 | Vellore Thoothikudi road | 120 m | | | | Yes | |
| V | 22 | K.SATHANUR 110/33-11 KV SUBSTATION | 110/33-11 | 10.75685335 | 78.68395149 | 110 | Palani Nagar, K K Nagar, Tiruchirappalli, Tamil Nadu 620021 | Trichy | NH 38 | Trichy Madurai Highway (Via Sathanur rd) | 2.4 km | | | | 15*7m | |
| W | 23 | 110/22KV SIRUVACHUR SS | 110/22 | 11.17376097 | 78.86130381 | 110 | Perambalur, Tamil Nadu | Perambalur | NH 38 | Theni Chennai highway | 30 m | | | | Yes | |
| X | 24 | 110/33-11KV VANIYAMBADI SS | 110/33-11 | 12.67697786 | 78.63073842 | 110 | Vaniyambadi Sub Station, MJGJ+M8J, Perumalpet, Vaniyambadi, Tamil Nadu 635752 | Thirupattur | NH 48 | Chennai Bengaluru rd | 1.1 km | SH 215 | Vaniyambadi Road | 10 m | Yes | |
| Y | 25 | VAITHEESWARANKOIL | 110/33-11 | 11.19840186 | 79.71651053 | 110 | Sirkazhi, Tamil Nadu 609117 | Mayiladuthurai | NH 136B | Kumbakonam Sirkazhi rd | 150 m | SH 164 | Sirkali Kumbakonam | 150 m | Yes | |
| Z | 26 | RAJANTHANGAL | 110/22 | 12.15057497 | 79.17732304 | 110 | TN EB sub station, 552G+7XM, Tiruvannamalai, Tamil Nadu 606755 | Thiruvannamalai | NH 38 | Vellore Thoothikudi road | 290 m | MDR 803 | Thandarai rd | 61 m | 2 cent | |
| A | 27 | 110/22 KV KINATHUKADAVU | 110/22 | 10.82794126 | 77.01967922 | 110 | Kinathukadavu, Tamil Nadu | Coimbatore | NH 83 | Pollachi main rd | 260 m | | | | Yes | |
| B | 28 | KEMPATTY 110/33-11 KV SS | 110/33-11 | 12.67455698 | 77.76173227 | 110 | Belagondanahalli, Tamil Nadu 635110 | Krishnagiri | NH 948A | Hosur Tally road | 260 m | SH 17B | Hosur Tally rd | 260 m | Yes | |
| C | 29 | VEPPUR | 110/33-11 | 11.5390115 | 79.12740173 | 110 | Veppur, Tamil Nadu | Perambalur | NH 532 | Chennai Theni rd | 190 m | | | | 15*7 m | |
| D | 30 | 110/22 KV REDDIYARCHATRAM SS | 110/22 | 10.43708348 | 77.84967167 | 110 | EB office, CRPX+VVC, Assistant Engineer, Pannaipatti, Kothapulli, Tamil Nadu 624622 | Dindigul | NH 83 | Dindigul Palani Rd | 78 m | | | | 105 sq.m | |
| E | 31 | 110/33-11 KV ALANGULAM SS | 110/33-11 | 8.871536852 | 77.48467679 | 110 | 9MHF+RM4, cements colony Rd, Lakshmipuram, Tamil Nadu 626127 | Virudhunagar | NH | Tirunelveli to Kollam | | SH 186 | TNC MUKKUROAD | 1.6 km | Yes | |
| F | 32 | Devipattinam | 110/33 | 9.485019251 | 78.89511922 | 110 | Ramanathapuram, Tamil Nadu 623514 | Ramanathapuram | NH 32 | Nagapattinam Tuticorin | 130 m | SH 200, 49 | Nagapattinam Tuticorin | 130 m | 105 sq.m | |
| G | 33 | 110/11 KV KEELAKARAI SS | 110/11 | 9.253738308 | 78.78863123 | 110 | TNEB Kilakarai SS, 7Q3Q+FGR, Ramanathapuram, Coimbatore, Tamil Nadu 623517 | Ramanathapuram | NH 32 | ECR | 34 m | SH 200, 49 | Nagapattinam Tuticorin | 34 m | 105 sq.m | |
| H | 34 | THIRUPPATHUR 110/11 KV SS | 110/11 | 10.10308285 | 78.58730604 | 110 | Ranasingapuram, Tamil Nadu 630211 | Sivaganga | NH 36 | Sivaganga Thirupattur rd | 1.8 km | | | | 105 Sq.m | |
| I | 35 | ARASANOOR 110/22 KV SS | 110/22 | 9.852274645 | 78.34562498 | 110 | Arasanoor sub station, V82W+X78, Madurai-Sivaganga Rd, Arasanoor, Tamil Nadu 630561 | Sivaganga | NH 85 | Madurai Sivagangai rd | 10 m | SH 33 | Madurai Thondi | 10 m | 105 Sq.m | |
| J | 36 | 110/22 KV BATLAGUNDU SS | 110/22 | 10.16244205 | 77.73639523 | 110 | Nilakkottai, Tamil Nadu 624202 | Dindigul | NH 183 | Chennai Theni rd | 140 m | | | | Yes | |
| K | 37 | 110/22 KV KALLIMANDYAM SS | 110/22 | 10.59640394 | 77.68115925 | 110 | Oddanchattram, Tamil Nadu 624616 | Dindigul | NH 381 | Ottanchathiram Dharapuram rd | 500 m | MDR 908 | Ottanchathiram Dharapuram | 140 m | Yes | |
| L | 38 | 110/33-11 KV KANYAKUMARI SS | 110/33-11 | 8.10619 | 77.53675 | 110 | 4G4P+FM3, NH 44, near Murugan Kundram, Tamil Nadu 629702 | Kanyakumari | NH 44, NH 66, NH 7A | Srinagar Kanyakumari Highway, Kanyakumari Maharastra Highway, Kanyakumari to Bengaluru | 4 m from Highway, 400 m from NH 66 | | | | Yes | |
| M | 39 | 110/33-11 KV GANGAIKONDAN SS | 110/33-11 | 8.844663996 | 77.7711412 | 110 | Tirunelveli, Tamil Nadu 627352 | Tirunelveli | NH 44 | Kanyakumari Madurai | 130 m | | | | Yes | |
| N | 40 | 110/11 KV SRIVILLIPUTHUR SS | 110/11 | 9.499805145 | 77.64153711 | 110 | Sirivilliputtur, Tamil Nadu | Virudhunagar | NH 744 | Sivakasi Sirivalliputhur Rd | 2.2 km | SH | Railway station rd | | Yes | |
| O | 41 | 110/22 KV ANNUR SS | 110/22 | 11.19991617 | 77.07446963 | 110 | NH 209, Kariampalayam, Tamil Nadu 641697 | Coimbatore | NH 948 | Kovai rd | 10 m | | | | Yes | |
| P | 42 | SHOOLAGIRI 110/33-11 KV SS | 110/33-11 | 12.66894307 | 77.99180097 | 110 | Thiyagarsanapalli, Tamil Nadu 635117 | Krishnagiri | NH 48 | Bengaluru Rd | 15 m | | | | Yes | |
| Q | 43 | 110/11 KV KILPALLIPET SS | 110/11 | 12.76354839 | 79.15629452 | 110 | Kammasamudram, Tamil Nadu | Vellore | NH 38 | Vellore Thoothukudi Rd | 66 m | | | | Yes | |
| R | 44 | 110/33-11 KV VADAKATHIPATTY SS | 110/33-11 | 12.88070218 | 78.867793 | 110 | Ambur, Tamil Nadu | Tirupattur | NH 45 | Chennai Bengaluru | 230 m | | | | Yes | |
| S | 45 | 110/22 KV OTHAKALMANDAPAM | 110/22 | 10.8922376 | 77.00239995 | 110 | Madukkarai, Tamil Nadu 641050 | Coimbatore | NH 83 | Pollachi Main rd | 280 m | | | | Yes | |
| T | 46 | 110/22 KV MADUKKARAI | 110/22 | 10.90813569 | 76.94584899 | 110 | 110/22KV Madukkarai Sub-Station, WW5W+88P, Madukkarai, Tamil Nadu 641105 | Coimbatore | NH 544 | Coimbatore Palakkad rd | 3.4 km | SH | Salem to Cochin | | Yes | |
| U | 47 | 110/11KV PEELAMEDU SS | 110/11 | 11.02001241 | 76.99318776 | 110 | KR Puram, Udayampalayam, Coimbatore, Tamil Nadu | Coimbatore | NH 181 | Avinashi rd | 140 m | SHU 52 | | | Yes | |
| V | 48 | POOTHAMEDU | 110/22 | 11.98655457 | 79.48382676 | 110 | 110/22KV TNEB Sub Station Poothamedu, XFPM+HHV, Viluppuram, Tamil Nadu 605601 | Viluppuram | NH 38 | Gingee Vilupuram Rd | 20 m | | | | 20*20 m |
