Frequency Response. Seller Facility shall provide a primary frequency response with a frequency droop characteristic reacting to system frequency at the Point of Interconnection in both the overfrequency and underfrequency directions except as limited by the minimum and maximum available capacity at the time of the event. Minimum operational limit for each online turbine is to be supplied. Nominal System Frequency is 60.00 Hz. The droop setting should permit a setting from 0.1 to 10%. This setting shall be changed upon Company’s written request as necessary for grid droop response coordination. The droop setting shall be tunable and may be specified during commissioning, the nominal setting is 4%. The Seller shall make commercially reasonable efforts to provide frequency response without an intentional deadbandbut in any case is not to exceed +/- 0.0166 Hz . The droop response shall provide [80-100%] of expected (proportional) active power output at the end of a linear ramp change in frequency of [1% (0.6 Hz)] over a [5] second period starting at the initial frequency deviation. . [80%] of the desired response has to be delivered within [2] seconds after disturbance, and full response must be deployed within an additional [3] seconds after an initial [2] seconds for a total response within [5] seconds after the disturbance. When operating in parallel with the Company System, the Facility shall operate with its speed governor control in automatic operation. Notification of changes in the status of the speed/load governing controls must be provided to the Company System Operator immediately preferably through SCADA. The Facility frequency response control shall adjust, without intentional delay and without regard to the ramp rate limits in Section 3(c)(Ramp Rates) of this Attachment B (Facility Owned by Seller), the Facility's net real power export when system frequency is not 60 Hz based on frequency deadband and frequency droop settings specified by the Company. The Facility frequency response control shall be allowed to increase the net real power export above the Power Reference Limit set under Section 1(g)(viii) of this Attachment B (Facility Owned by Seller) or further decrease the net real power export from the Power Reference Limit in its operations. The Facility frequency response control shall be in continuous operation when the Facility is exporting energy to the Company unless directed otherwise by the Company.
Appears in 3 contracts
Sources: Facility Agreement, Power Purchase Agreement, Facility Agreement