Common use of Operations and Maintenance Requirements Clause in Contracts

Operations and Maintenance Requirements. In addition to the requirements of ESB 756, Appendix A, the Generator-owner shall refer to Section 1.7 of the Transmission Owner's ESB 750-2002 and ESB 755-2003 regarding the Generator-owner’s responsibility for their electric service operating and maintenance requirements. (For all National Grid Specifications for Electrical Installations, ESB 750 series bulletins, go to xxxx://xxx.xxxxxxxxxxxxxx.xxx/electricalspecifications.) A. System Upgrade Facilities (SUFs) Description [Reference the April 2010 Synergy LLC Facilities Study as amended by Report #2 dated 7/19/2010.] i. At Xxxxxxxx Road Station, upgrade the existing station regulator to a 0-000 XXX bi-directional regulator to control feeder voltage to within voltage limits. ii. On feeder 2951, upgrade the existing 0-000 xXXX xxxxxxxxx bank on pole 47 (L#3, TD#5577) to a switched capacitor bank to prevent overvoltages that were predicted at light load conditions. iii. Between the TO’s main breaker on Feeder 2951 at Station 29 and Synergy’s 5KV Synchronizing breaker 52G, install a direct transfer trip (DTT) scheme to prevent the generator from islanding the feeder following a feeder fault that trips and locks out feeder 2951. The following will be installed at the Synergy Biogas site:  DTT Cabinet - Install an SEL 2505 Remote I/O Module in a weatherproof cabinet at the DEVELOPER’s site. This cabinet will also contain a 24VDC battery and charger for the relay operation. This relay will communicate via fiber with the DEVELOPER’s radio to Xxxxxxxx Road Substation.  Install an antenna on the 100’ pole for communication. This pole will also be equipped with a lightning mast, which will connect to a small grounding ring at the base of the pole. Detailed grounding calculations will be performed during preliminary engineering.  Communication Cabinet (Installed on the antenna pole) - Install a radio at the base of the 100’ pole at the DEVELOPER’s site for communication with Xxxxxxxx Road Substation. A 900 MDS radio, a serial to fiber converter, a 24VDC battery, and a charger will be installed in this weatherproof cabinet.  New conduits and cables will be needed for the following: - AC supply to the DTT cabinet - Fiber from the DTT cabinet to the communication cabinet - AC supply to the communication cabinet B. SUF Estimated Costs System Upgrade Facilities (SUFs): SUFs Sub- Total: $503,575 Contingency $151,000 SUFs TOTAL $655,000

Operations and Maintenance Requirements. In addition to the requirements of ESB 756, Appendix A, the Generator-owner shall refer to Section 1.7 of the Transmission Owner's ESB 750-2002 and ESB 755-2003 regarding the Generator-owner’s responsibility for their electric service operating and maintenance requirements. (For all National Grid Specifications for Electrical Installations, ESB 750 series bulletins, go to xxxx://xxx.xxxxxxxxxxxxxx.xxx/electricalspecifications.) A. System Upgrade Facilities (SUFs) Description [Reference the April 2010 Synergy LLC Facilities Study as amended by Report #2 dated 7/19/2010.] i. At Xxxxxxxx Road Station, upgrade the existing station regulator to a 0-000 XXX 3- 333 KVA bi-directional regulator to control feeder voltage to within voltage limits. ii. On feeder 2951, upgrade the existing 03-000 xXXX xxxxxxxxx 100 kVAR capacitor bank on pole 47 (L#3, TD#5577) to a switched capacitor bank to prevent overvoltages that were predicted at light load conditions. iii. Between the TO’s main breaker on Feeder 2951 at Station 29 and Synergy’s 5KV Synchronizing breaker 52G, install a direct transfer trip (DTT) scheme to prevent the generator from islanding the feeder following a feeder fault that trips and locks out feeder 2951. The following will be installed at the Synergy Biogas site:  • DTT Cabinet - Install an SEL 2505 Remote I/O Module in a weatherproof cabinet at the DEVELOPER’s site. This cabinet will also contain a 24VDC battery and charger for the relay operation. This relay will communicate via fiber with the DEVELOPER’s radio to Xxxxxxxx Road Substation.  • Install an antenna on the 100’ pole for communication. This pole will also be equipped with a lightning mast, which will connect to a small grounding ring at the base of the pole. Detailed grounding calculations will be performed during preliminary engineering.  • Communication Cabinet (Installed on the antenna pole) - Install a radio at the base of the 100’ pole at the DEVELOPER’s site for communication with Xxxxxxxx Road Substation. A 900 MDS radio, a serial to fiber converter, a 24VDC battery, and a charger will be installed in this weatherproof cabinet.  • New conduits and cables will be needed for the following: - AC supply to the DTT cabinet - Fiber from the DTT cabinet to the communication cabinet - AC supply to the communication cabinet B. SUF Estimated Costs System Upgrade Facilities (SUFs): SUFs Sub- Total: $503,575 Contingency $151,000 SUFs TOTAL $655,000

Operations and Maintenance Requirements. In addition to the requirements of ESB 756, Appendix A, the Generator-owner shall refer to Section 1.7 of the Transmission Owner's ESB 750-2002 and ESB 755-2003 regarding the Generator-owner’s responsibility for their electric service operating and maintenance requirements. (For all National Grid Specifications for Electrical Installations, ESB 750 series bulletins, go to xxxx://xxx.xxxxxxxxxxxxxx.xxx/electricalspecifications.) A. System Upgrade Facilities (SUFs) Description [Reference the April 2010 Synergy LLC Facilities Study as amended by Report #2 dated 7/19/2010.] i. At Xxxxxxxx Road Station, upgrade the existing station regulator to a 0-000 XXX 3- 333 KVA bi-directional regulator to control feeder voltage to within voltage limits. ii. On feeder 2951, upgrade the existing 0-000 xXXX xxxxxxxxx bank on pole 47 (L#3, TD#5577) to a switched capacitor bank to prevent overvoltages that were predicted at light load conditions. iii. Between the TO’s main breaker on Feeder 2951 at Station 29 and Synergy’s 5KV Synchronizing breaker 52G, install a direct transfer trip (DTT) scheme to prevent the generator from islanding the feeder following a feeder fault that trips and locks out feeder 2951. The following will be installed at the Synergy Biogas site:  • DTT Cabinet - Install an SEL 2505 Remote I/O Module in a weatherproof cabinet at the DEVELOPER’s site. This cabinet will also contain a 24VDC battery and charger for the relay operation. This relay will communicate via fiber with the DEVELOPER’s radio to Xxxxxxxx Road Substation.  • Install an antenna on the 100’ pole for communication. This pole will also be equipped with a lightning mast, which will connect to a small grounding ring at the base of the pole. Detailed grounding calculations will be performed during preliminary engineering.  • Communication Cabinet (Installed on the antenna pole) - Install a radio at the base of the 100’ pole at the DEVELOPER’s site for communication with Xxxxxxxx Road Substation. A 900 MDS radio, a serial to fiber converter, a 24VDC battery, and a charger will be installed in this weatherproof cabinet.  • New conduits and cables will be needed for the following: - AC supply to the DTT cabinet - Fiber from the DTT cabinet to the communication cabinet - AC supply to the communication cabinet B. SUF Estimated Costs System Upgrade Facilities (SUFs): SUFs Sub- Total: $150,463 $61,700 $291, 235 $503,575 Contingency $151,000 SUFs TOTAL $655,000

Operations and Maintenance Requirements. In addition to the requirements of ESB 756, Appendix A, the Generator-owner shall refer to Section 1.7 of the Transmission Owner's ESB 750-2002 and ESB 755-2003 regarding the Generator-owner’s responsibility for their electric service operating and maintenance requirements. (For all National Grid Specifications for Electrical Installations, ESB 750 series bulletins, go to xxxx://xxx.xxxxxxxxxxxxxx.xxx/electricalspecifications.) A. System Upgrade Facilities (SUFs) Description [Reference the April 2010 Synergy LLC Facilities Study as amended by Report #2 dated 7/19/2010.] i. At Xxxxxxxx Road Station, upgrade the existing station regulator to a 0-000 XXX 3- 333 KVA bi-directional regulator to control feeder voltage to within voltage limits. ii. On feeder 2951, upgrade the existing 0-000 xXXX xxxxxxxxx bank on pole 47 (L#3, TD#5577) to a switched capacitor bank to prevent overvoltages that were predicted at light load conditions. iii. Between the TO’s main breaker on Feeder 2951 at Station 29 and Synergy’s 5KV Synchronizing breaker 52G, install a direct transfer trip (DTT) scheme to prevent the generator from islanding the feeder following a feeder fault that trips and locks out feeder 2951. The following will be installed at the Synergy Biogas site:  DTT Cabinet - Install an SEL 2505 Remote I/O Module in a weatherproof cabinet at the DEVELOPER’s site. This cabinet will also contain a 24VDC battery and charger for the relay operation. This relay will communicate via fiber with the DEVELOPER’s radio to Xxxxxxxx Road Substation.  Install an antenna on the 100’ pole for communication. This pole will also be equipped with a lightning mast, which will connect to a small grounding ring at the base of the pole. Detailed grounding calculations will be performed during preliminary engineering.  Communication Cabinet (Installed on the antenna pole) - Install a radio at the base of the 100’ pole at the DEVELOPER’s site for communication with Xxxxxxxx Road Substation. A 900 MDS radio, a serial to fiber converter, a 24VDC battery, and a charger will be installed in this weatherproof cabinet.  New conduits and cables will be needed for the following: - AC supply to the DTT cabinet - Fiber from the DTT cabinet to the communication cabinet - AC supply to the communication cabinet B. SUF Estimated Costs System Upgrade Facilities (SUFs): SUFs Sub- Total: $503,575 Contingency $151,000 SUFs TOTAL $655,000