Common use of Interconnection Customer’s Interconnection Facilities Clause in Contracts

Interconnection Customer’s Interconnection Facilities. The Interconnection Customer shall design and construct the Interconnection Customer’s Interconnection Facilities and Jointly Owned Interconnection Facilities in accordance with the applicable requirements of Connecting Transmission Owner, as set out in National Grid Electric System Bulletin 756, dated May 2007, to the extent not inconsistent with the terms of this Agreement or the NYISO OATT, and in accordance with the Connecting Transmission Owner’s project specific electrical requirements, to the extent not inconsistent with the terms of this Agreement or the NYISO OATT. As depicted in Attachment 3, Figure 1, for the Interim Constrained Operation Interconnection (“ICOI”), the Interconnection Customer Interconnection Facilities and the Jointly Owned Interconnection Facilities consist of: Equipment in Switchgear cubicle 8A, which constitute Interconnection Facilities that are for the sole use of the Interconnection Customer’s Small Generating Facility (Steel Winds II), including, but not limited to: One (1) 13.8 kV, 1200 A feeder breaker with 29 kA interrupting capability; Three (3) 12 kV station class surge arresters; Four (4) sets of single phase, 1200:5 CTs; One (1) set of single phase, 3000:5 CTs; New Jointly Owned Interconnection Facilities that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: Two (2) reverse power relays will be installed by the Developer on the low side of the transformer for limiting the export on each of the Lines 149 and 150 to 10MW or less. The Existing Collection Station, which constitutes the remainder of the Jointly Owned Interconnection Facilities for the ICOI that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: One (1) 13.8 kV, 2500 A bus tie breaker with 29 kA interrupting capability; Relaying; One (1) 3Ph, 75 kVA 13800/480-277V station service transformer; Six (6) 115 kV surge arresters; Two (2) 25/33/41.6 MVA OA/FA/FA, 115/13.8Y kV GRD Wye/7970V (two winding) transformers; Two (2) 13.8 kV, 2500 A breakers with 29 kA interrupting capability; Two (2) 115 kV, 1200A, 550 kV BIL oil circuit breakers with 22 kA interrupting capability; Two (2) 115 kV, 1200A motor operated, oil circuit breaker disconnect switches; Two (2) 115 kV, 1200 A, motor operated line disconnect switches; and Two (2) 115 kV, 1200 A, motor operated tie disconnect switches. As depicted in Attachment 3, Figure 2, for the Final Interconnection, the Interconnection Customer Interconnection Facilities shall consist of the sole use Interconnection Facilities and the joint use Jointly Owned Interconnection Facilities identified above for the ICOI and the following equipment: New Jointly Owned Interconnection Facilities that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: One (1) RFL-9745 receiver One (1) RFL IMUX 2000 Associated switchboard equipment The Interconnection Customer and Connecting Transmission Owner will coordinate the procurement of the RFL equipment and phone circuits.

Interconnection Customer’s Interconnection Facilities. The Interconnection Customer shall design and construct the Interconnection Customer’s Interconnection Facilities and Jointly Owned Interconnection Facilities in accordance with the applicable requirements of Connecting Transmission Owner, as set out in National Grid Electric System Bulletin 756, dated May 2007, to the extent not inconsistent with the terms of this Agreement or the NYISO OATT, and in accordance with the Connecting Transmission Owner’s project specific electrical requirements, to the extent not inconsistent with the terms of this Agreement or the NYISO OATT. As depicted in Attachment 3, Figure 1, for the Interim Constrained Operation Interconnection (“ICOI”), the Interconnection Customer Interconnection Facilities and the Jointly Owned Interconnection Facilities consist of:  Equipment in Switchgear cubicle 8A, which constitute Interconnection Facilities that are for the sole use of the Interconnection Customer’s Small Generating Facility (Steel Winds II), including, but not limited to: o One (1) 13.8 kV, 1200 A feeder breaker with 29 kA interrupting capability; capability;‌ o Three (3) 12 kV station class surge arresters; o Four (4) sets of single phase, 1200:5 CTs; o One (1) set of single phase, 3000:5 CTs;  New Jointly Owned Interconnection Facilities that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: o Two (2) reverse power relays will be installed by the Developer on the low side of the transformer for limiting the export on each of the Lines 149 and 150 to 10MW or less.  The Existing Collection Station, which constitutes the remainder of the Jointly Owned Interconnection Facilities for the ICOI that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: o One (1) 13.8 kV, 2500 A bus tie breaker with 29 kA interrupting capability; Relaying; o Relaying;‌ o One (1) 3Ph, 75 kVA 13800/480-277V station service transformer; o Six (6) 115 kV surge arresters; o Two (2) 25/33/41.6 MVA OA/FA/FA, 115/13.8Y kV GRD Wye/7970V (two winding) transformers; o Two (2) 13.8 kV, 2500 A breakers with 29 kA interrupting capability; capability;‌ o Two (2) 115 kV, 1200A, 550 kV BIL oil circuit breakers with 22 kA interrupting capability; o Two (2) 115 kV, 1200A motor operated, oil circuit breaker disconnect switches; o Two (2) 115 kV, 1200 A, motor operated line disconnect switches; and and‌ o Two (2) 115 kV, 1200 A, motor operated tie disconnect switches. As depicted in Attachment 3, Figure 2, for the Final Interconnection, the Interconnection Customer Interconnection Facilities shall consist of the sole use Interconnection Facilities and the joint use Jointly Owned Interconnection Facilities identified above for the ICOI and the following equipment:  New Jointly Owned Interconnection Facilities that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: o One (1) RFL-9745 receiver receiver‌ o One (1) RFL IMUX 2000 o Associated switchboard equipment The Interconnection Customer and Connecting Transmission Owner will coordinate the procurement of the RFL equipment and phone circuits.

Interconnection Customer’s Interconnection Facilities. The Interconnection Customer shall design and construct the Interconnection Customer’s Interconnection Facilities and Jointly Owned Interconnection Facilities in accordance with the applicable requirements of Connecting Transmission Owner, as set out in National Grid Electric System Bulletin 756, dated May 2007, to the extent not inconsistent with the terms of this Agreement or the NYISO OATT, and in accordance with the Connecting Transmission Owner’s project specific electrical requirements, to the extent not inconsistent with the terms of this Agreement or the NYISO OATT. As depicted in Attachment 3, Figure 1, for the Interim Constrained Operation Interconnection (“ICOI”), the Interconnection Customer Interconnection Facilities and the Jointly Owned Interconnection Facilities consist of: • Equipment in Switchgear cubicle 8A, which constitute Interconnection Facilities that are for the sole use of the Interconnection Customer’s Small Generating Facility (Steel Winds II), including, but not limited to: o One (1) 13.8 kV, 1200 A feeder breaker with 29 kA interrupting capability; o Three (3) 12 kV station class surge arresters; o Four (4) sets of single phase, 1200:5 CTs; o One (1) set of single phase, 3000:5 CTs; • New Jointly Owned Interconnection Facilities that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: o Two (2) reverse power relays will be installed by the Developer on the low side of the transformer for limiting the export on each of the Lines 149 and 150 to 10MW or less. • The Existing Collection Station, which constitutes the remainder of the Jointly Owned Interconnection Facilities for the ICOI that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: o One (1) 13.8 kV, 2500 A bus tie breaker with 29 kA interrupting capability; o Relaying; o One (1) 3Ph, 75 kVA 13800/480-277V station service transformer; o Six (6) 115 kV surge arresters; o Two (2) 25/33/41.6 MVA OA/FA/FA, 115/13.8Y kV GRD Wye/7970V (two winding) transformers; o Two (2) 13.8 kV, 2500 A breakers with 29 kA interrupting capability; o Two (2) 115 kV, 1200A, 550 kV BIL oil circuit breakers with 22 kA interrupting capability; o Two (2) 115 kV, 1200A motor operated, oil circuit breaker disconnect switches; o Two (2) 115 kV, 1200 A, motor operated line disconnect switches; and o Two (2) 115 kV, 1200 A, motor operated tie disconnect switches. As depicted in Attachment 3, Figure 2, for the Final Interconnection, the Interconnection Customer Interconnection Facilities shall consist of the sole use Interconnection Facilities and the joint use Jointly Owned Interconnection Facilities identified above for the ICOI and the following equipment: • New Jointly Owned Interconnection Facilities that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: o One (1) RFL-9745 receiver o One (1) RFL IMUX 2000 o Associated switchboard equipment The Interconnection Customer and Connecting Transmission Owner will coordinate the procurement of the RFL equipment and phone circuits.

Interconnection Customer’s Interconnection Facilities. The Interconnection Customer shall design and construct the Interconnection Customer’s Interconnection Facilities and Jointly Owned Interconnection Facilities in accordance with the applicable requirements of Connecting Transmission Owner, as set out in National Grid Electric System Bulletin 756, dated May 2007, to the extent not inconsistent with the terms of this Agreement or the NYISO OATT, and in accordance with the Connecting Transmission Owner’s project specific electrical requirements, to the extent not inconsistent with the terms of this Agreement or the NYISO OATT. As depicted in Attachment 3, Figure 1, for the Interim Constrained Operation Interconnection (“ICOI”), the Interconnection Customer Interconnection Facilities and the Jointly Owned Interconnection Facilities consist of: • Equipment in Switchgear cubicle 8A, which constitute Interconnection Facilities that are for the sole use of the Interconnection Customer’s Small Generating Facility (Steel Winds II), including, but not limited to: o One (1) 13.8 kV, 1200 A feeder breaker with 29 kA interrupting capability; capability;‌ o Three (3) 12 kV station class surge arresters; o Four (4) sets of single phase, 1200:5 CTs; o One (1) set of single phase, 3000:5 CTs; • New Jointly Owned Interconnection Facilities that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: o Two (2) reverse power relays will be installed by the Developer on the low side of the transformer for limiting the export on each of the Lines 149 and 150 to 10MW or less. • The Existing Collection Station, which constitutes the remainder of the Jointly Owned Interconnection Facilities for the ICOI that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: o One (1) 13.8 kV, 2500 A bus tie breaker with 29 kA interrupting capability; Relaying; o Relaying;‌ o One (1) 3Ph, 75 kVA 13800/480-277V station service transformer; o Six (6) 115 kV surge arresters; o Two (2) 25/33/41.6 MVA OA/FA/FA, 115/13.8Y kV GRD Wye/7970V (two winding) transformers; o Two (2) 13.8 kV, 2500 A breakers with 29 kA interrupting capability; capability;‌ o Two (2) 115 kV, 1200A, 550 kV BIL oil circuit breakers with 22 kA interrupting capability; o Two (2) 115 kV, 1200A motor operated, oil circuit breaker disconnect switches; o Two (2) 115 kV, 1200 A, motor operated line disconnect switches; and and‌ o Two (2) 115 kV, 1200 A, motor operated tie disconnect switches. As depicted in Attachment 3, Figure 2, for the Final Interconnection, the Interconnection Customer Interconnection Facilities shall consist of the sole use Interconnection Facilities and the joint use Jointly Owned Interconnection Facilities identified above for the ICOI and the following equipment: • New Jointly Owned Interconnection Facilities that are for the joint use of Niagara Wind Power’s existing Steel Winds I facility and the Small Generating Facility (Steel Winds II), including: o One (1) RFL-9745 receiver receiver‌ o One (1) RFL IMUX 2000 o Associated switchboard equipment The Interconnection Customer and Connecting Transmission Owner will coordinate the procurement of the RFL equipment and phone circuits.