![]() the reduction of capacity for scheduled downtime due to such conditions as routine inspection, maintenance, repairs, and turnaround and 6. the environmental constraints associated with refinery operations 5. the types and grades of products expected to be manufactured 4. the types and grades of inputs to be processed 3. No reduction is necessary for intermediate streams that are distributed to other than downstream facilities as part of a refinery's normal operation 2. ![]() the capability of downstream processing units to absorb the output of crude oil processing facilities of a given refinery. The amount is expressed in terms of capacity during a 24-hour period and reduces the maximum processing capability of all units at the facility under continuous operation (see Barrels per Stream Day) to account for the following limitations that may delay, interrupt, or slow down production. gallons.īarrels per calendar day: The amount of input that a distillation facility can process under usual operating conditions. Reporting problems include differences due to the net result of conversions off low data metered at varying temperature and pressure bases and converted to a standard temperature and pressure base the effect of variations in company accounting and billing practices differences between billing cycle and calendar period time frames and imbalances resulting from the merger of data reporting systems that vary in scope, format, definitions, and type of respondents.īarrel: A unit of volume equal to 42 U.S. These differences may be due to quantities lost or to the effects of data reporting problems. NERC definitionīalancing item: Represents differences between the sum of the components of natural gas supply and the sum of the components of natural gas disposition. B/d: The abbreviation for barrel(s) per day.ī/sd: The abbreviation for barrel(s) per stream day.īackup fuel: In a central heat pump system, the fuel used in the furnace that takes over the space heating when the outdoor temperature drops below that which is feasible to operate a heat pump.īackup generator: A generator that is used only for test purposes, or in the event of an emergency, such as a shortage of power needed to meet customer load requirements.īackup power: Electric energy supplied by a utility to replace power and energy lost during an unscheduled equipment outage.īalancing authority (electric): The responsible entity that integrates resource plans ahead of time, maintains load-interchange-generation balance within a Balancing Authority Area, and supports Interconnection frequency in real time.
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