4.6.Lubrication
The types of lubrication specified for Facility equipment will be suited to the operating conditions, will be in the beginning of the lubrication’s life cycle, and will comply with the recommendations of the equipment manufacturers at the time of facility turnover.
Rotating equipment will be splash lubricated, force lubricated, or self-lubricated. Oil cups will be provided as necessary. Where automatic lubricators are fitted to equipment, provisions for emergency hand lubrication will also be specified. Where applicable, equipment will be designed for manual lubrication without the removal of protective guards while the equipment is in operation. Lubrication fill, drain and sample points will be readily accessible. Manual lubrication provisions will be external to guards with machinery in motion.
Wherever possible, the lubricants proposed will be readily available.
The types of lubrication specified for the Facility equipment will be suited to the operating conditions and will comply with the recommendations of the equipment manufacturers.
4.7.Consumables
Seller shall replenish the Facility consumables (demineralizer water, chemicals, gases and other) such that at Turnover of the facility Purchaser has a full supply.
5.OPERATIONAL REQUIREMENTS
The Facility will be designed so that each Unit may be operated independently, and a single failure of mechanical equipment common to all Units will not trip any operating Unit.
The Facility and each Unit will be fully dispatchable with automatic generation control (AGC). The Facility and each Unit will be capable of being dispatched from minimum to full load, as specified in Appendix G. The Facility and each Unit will also be capable of cycling operation. Balance-of-plant design will not limit CTG operation over the full range of site ambient conditions.
The Facility will be started without a source of auxiliary steam. All steam required for startup will be provided by the HRSG. Excess steam generated during startup of the first Unit will be vented to atmosphere through silenced, startup vent valves. Once the steam seals have been established in the STG, excess steam will be bypassed to the condenser. Cross ties shall be provided so that steam from an operating Unit can supply steam for startup of the remaining Units. Design of the Facility shall consider limitations on emissions imposed by the local air district and the CEC.
The Facility does not need to have black start capability. An independent dual source of power from the electric utility is required to meet house loads, including operation of all necessary standby equipment and systems.
The sequence of startup varies only slightly depending upon whether the CTG is cold, warm or hot. However, the duration of a start-up will be dependent on the initial conditions of the plant. Each of the units that comprise the facility shall be designed to achieve the startup times listed in Appendix N3 for the specified shutdown periods for each Unit.
The startup and shutdown operational requirements include:
Ability to turn-down to 55% of full baseload power output or lower.
Automatic Generation Control (AGC) and load following over the full turn-down range (55% to 100%), in accordance with the California ISO’s “Generation Monitoring and Control Requirements for AGC/Regulation Units” as can be found on their web site at http://www.caiso.com/docs/09003a6080/1b/23/09003a60801b2389ex.html
Maximum allowable hot-start time of 90 minutes including all pre-ignition purges and other permissives. Offers shall note the portion of the plant output that can be delivered within ten minutes of request to start, and shall note any limitations to and consequences of using of this quick starting capability.
Maximum allowable cold-start time of 4.5 hours.
Minimum downtime between combustion turbine restarts of 60 minutes.
Minimum ramp rate of 7% of guaranteed capacity per minute per combustion turbine.
Ability to complete a hot shutdown to hot re-start cycle in less than three hours.
300 annual starts including approximately 25 cold starts.
Minimum Run Time – 4 hours or less per start.
A facility that meets all NERC requirements (cyber, site security, other).
A facility that meets the CAISO interconnection requirements including metering and ancillary service provisions.
Alternate power source or back-up generator to meet essential loads.
Ability to meet all air emissions criteria at startup, shutdown, and for all operating loads.
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