Approval of incurring capital expenditure by State Electricity Transmission Company Limited for implementation of 9 no new EHV Substations and associated transmission system in terms of regulation 2.8.2.3 and paragraph 4.1 (vi) of Schedule - 2 of the West Bengal Electricity Regulatory Commission (Terms and Conditions of Tariff) Regulations, 2011, as amended.

At present, power supply of these areas is maintained from 132 kV and 132 kV substation. Kushmundi 33/11 kV substation draws power from Gangarampur 132 kV substation via 33 kV substation through 33 kV line of approx. length of 25 Km. Harirampur 33 kV substation has connectivity with Kushmundi and Buniadpur 33 kV substation and is 18 Km apart from Kushmundi. 33 kV substation draws power from Raiganj 132 kV substation through 2 nos. of 33 kV feeders via 33 kV substation. ltahar 33 kV substation also receives power from Raiganj source via Raiganj 33 kV substation and is 22 Km apart. All these substations are suffering from acute low voltage problem due to drawal of power by long 33 kV lines. After establishment of the proposed Kushmundi 132 kV GIS, the referred 33 kV substation could be fed with shorter line length.

Present aggregated maximum demand of these 33 kV substation is around 40 MVA which may exceed 68 MVA at the end of 2021-22 as proposed by WBSEDCL. Considering higher load requirement in and around Kaliaganj and Kushmundi, WBSEDCL has proposed for establishment of 132 kV substation at Kushmundi to mitigate low voltage problem in the areas under ltahar and Harirampur blocks. Buniadpur 33/11 kV substation with present maximum demand about 17 MVA will also get strong alternative source.

LILO of Raiganj - Gangarampur 132 kV S/c line which passes within 0.5 Km from the proposed location of the substation has been considered as 132 kV connectivity of Kushmundi 132 kV GIS.

Construction of Kushmundi 132 kV substation was prioritized by WBSEDCL in the coordination meeting between WBSEDCL and WBSETCL chaired by CMD, WBSEDCL held on 04.01.2017.

It was further submitted that, for establishment of 132 kV GIS at Kushmundi no land is required to be acquired as it will be constructed at the available vacant space within West Bengal Electricity Regulatory Commission 9 Approval of incurring capital expenditure by West Bengal State Electricity Transmission Company Limited for implementation of 9 no new EHV Substations and associated transmission system in terms of regulation 2.8.2.3 and paragraph 4.1 (vi) of Schedule - 2 of the West Bengal Electricity Regulatory Commission (Terms and Conditions of Tariff) Regulations, 2011, as amended.

Kushmundi 33/11 kV substation of WBSEDCL. Process has been initiated to obtain permissive possession of said land from WBSEDCL authority.

F) Construction of Harishchandrapur 132/33 kV Gas Insulated Substation (GIS) and associated transmission system (ATS):

WBSETCL has proposed for establishment of new 132/33 kV GIS at Harishchandrapur with 2x50 MVA 132/33 kV Transformers, four (4) numbers of 132 kV Feeder bays, ten (10) numbers of 33 KV feeder bays (with Indoor VCB Switchgear) along with construction of D/c LILO of Maida - Samsi - Raiganj 132 kV D/C Transmission line at proposed Harishchandrapur 132 kV GIS.

It was submitted that the proposed substation will be located at Harishchandrapur in the Maida district of West Bengal. Establishment of 132/33 kV Substation at Harishchandrapur was contemplated to supply adequate, reliable and quality power in the command area of Harishchandrapur, Tulsihata, Ashapur, Chanchal and Bhaluka 33/11 kV substations in Maida District and to cope up with future load growth in these areas.

At present, power supply of these areas is maintained from Samsi 132 kV substation. Samsi 132 kV substation with transformer capacity of (50+2x31.5) MVA is the only EHV source in the northern part of Maida District and present maximum demand is about 82 MVA. Present load of Harishchandrapur 33/11 kV substation of WBSEDCL is about 22 MVA and getting power from Samsi 132/33 kV substation via Chanchal 33/11 kV substation through 33 kV feeder. Present load of Chanchal 33 kV substation is about 25 MVA. Both Chanchal and Harishcharidrapur are suffering from acute low voltage problem due to incoming feeder constraint and overloading of long 33 kV lines. Chanchal has another 33 kV connectivity with Raiganj 132 kV substation which is located over 30 Km radially from Chanchal. After establishment of the proposed Harishchandrapur 132 kV GIS, above 33 kV sub-stations could be fed with shorter line West Bengal Electricity Regulatory Commission 10 ccrtifit,c~ true Copy Approval of incurring capital expenditure by West Bengal State Electricity Transmission Company Limited for implementation of 9 no new EHV Substations and associated transmission system in terms of regulation 2.8.2.3 and paragraph 4.1 (vi) of Schedule - 2 of the West Bengal Electricity Regulatory Commission (Terms and Conditions of Tariff) Regulations, 2011, as amended.

length. Connectivity of upcoming Ashapur and Tulsihata 33/11 kV substation will be established from proposed Harishchandrapur 132 kV GIS. Further, Chanchal, Bhaluka and Harirampur 33/11 kV substations which are 20 Km apart from the proposed substation will also get strong alternative source. The expected demand to be incident on the proposed Harishchandrapur 132/33 kV GIS is around 42 MVA as projected by WBSEDCL.

Maida - Samsi - Raiganj 132 kV D/c line passes about 28 Km apart from the proposed location of the substation. However, after commissioning of Gazol 220 kV, the said line will be reconfigured as Gazo I - Raiganj 132 kV D/c. LI LO of the said line has been considered as 132 kV connectivity of the proposed Harishchandrapur 132 kV GIS which will establish connectivity with Gazol and Raiganj.

Construction of Harishchandrapur 132 kV substation was prioritized by WBSEDCL in the coordination meeting between WBSEDCL and WBSETCL chaired by CMD, WBSEDCL held on 04.01.2017.

It was further submitted that, for establishment of 132 kV GIS at Harishchandrapur no land is required to be acquired as it will be constructed at the available vacant space within Harishchandrapur 33/11 kV substation of WBSEDCL. Process has been initiated to obtain permissive possession of said land from WBSEDCL authority.

G) Construction of Kana 132/33 kV Gas Insulated Substation (GIS) and associated transmission system (ATS):

WBSETCL has proposed for establishment of new 132/33 kV GIS at Kana with 3x50 MVA 132/33 kV Transformers, four (4) numbers of 132 kV Feeder bays, twelve (12) numbers of 33 KV feeder bays (with Indoor VCB Switchgear) along with construction of Sic LILO of Liluah - 132 kV S/c Line and Liluah - 132 kV S/c Line at proposed Kana 132 kV GIS.

West Bengal Electricity Regulatory Commission 11 ,..rtifk\r' true Copy C4 c_; i.1 · ) ' ··· ~s · Approval of incurring capital expenditure by West Bengal State Electricity Transmission Company Limited for implementation of 9 no new EHV Substations and associated transmission system in terms of regulation 2.8.2.3 and paragraph 4.1 (vi) of Schedule - 2 of the West Bengal Electricity Regulatory Commission (Terms and Conditions of Tariff) Regulations, 2011, as amended.

It was submitted that the proposed substation will be located at Kona in the district of West Bengal. Establishment of 132/33 kV Substation at Kona was contemplated to supply adequate, reliable and quality power in and around Kona, Lakshmanpur, Bally, Belgachia in Howrah District and to cope up with future load growth in these areas.

At present, power supply of these areas is maintained mostly from Liluah 132 kV substation. Peak demand of Liluah substation with transformer capacity of 3x50 MVA recorded presently is 119.5 MV A. There is also space constraint to accommodate new transformers and 33 kV bays. The proposed Kona 132 kV substation will be beneficial to divert a substantial part of 33 kV load from Liluah 132 kV substation using existing 33 kV network. With construction of Kona 132 kV GIS, load of Kona 33 kV substation and Kona Truck Terminus 33 kV substation in the tune of 40 MVA will be shifted from Liluah 132 kV substation immediately. Connectivity with 33/11 kV upcoming/ ongoing substations at Lakshmanpur, Bally, Belgachia, South City Anmol Park and KWIC will be affected from the proposed Kona 132 kV GIS. Further several "Micro, Small & Medium Enterprise" (MSME) Hubs are being promoted in the area which will be fed from proposed Kona 132 kV GIS. The aggregated load demand may exceed 65 kVA immediately after commissioning of Kona 132/33 kV GIS and also may increase to 75 MVA at the end of 2021-22 as projected by WBSEDCL.

LI LO of Liluah - Dankuni 132 kV S/c and Liluah - Rishra 132 kV S/c which passes over the proposed location of the substation has been considered as 132 kV connectivity of Kona 132 kV GIS.

Construction of Kona 132 kV substation was prioritized by WBSEDCL in the coordination meeting between WBSEDCL and WBSETCL chaired by CMD, WBSEDCL held on 04.01.2017.

It was further submitted that, for establishment of 132 kV GIS at Kona, no land is required tobe acquired as it will be constructed at the available vacant space within

West Bengal Electricity Regulatory Commission 12 Certified true Copy