Florida Administrative Code › 25 - PUBLIC SERVICE COMMISSION › 25 - Departmental › Chapter 25-6 - ELECTRIC SERVICE BY ELECTRIC PUBLIC UTILITIES › Part III - GENERAL MANAGEMENT REQUIREMENTS › Section 25-6.035 - Adequacy of Resources

Current through Reg. 50, No. 138; July 16, 2024
(1) Each electric
				  utility shall maintain sufficient generating capacity, supplemented by
				  regularly available generating and non-generating resources, in order to meet
				  all reasonable demands for service and provide a reasonable reserve for
				  emergencies. Each electric utility shall also coordinate the sharing of energy
				  reserves with other electric utilities in Peninsular Florida. To achieve an
				  equitable sharing of energy reserves, Peninsular Florida utilities shall be
				  required to maintain, at a minimum, a 15% planned reserve margin. The planned
				  and operating reserve margin standards established herein are intended to
				  maintain an equitable sharing of energy reserves, not to set a prudent level of
				  reserves for long-term planning or reliability purposes. The planned reserve
				  margin for each utility shall be calculated as follows:
RM = [(C - L)/L]*100 where;
"RM" - Is defined as the utility's percent planned reserve
					 margin;
"C" - Is defined as the aggregate sum of the rated
					 dependable peak-hour capabilities of the resources that are expected to be
					 available at the time of the utility's annual peak; and
"L" - Is defined as the expected firm peak load of the
					 system for which reserves are required.
The following shall be utilized as the operating reserve
					 standard for Peninsular Florida's utilities: operating reserves shall be
					 maintained by the combined Peninsular Florida system at a value equal to or
					 greater than the loss of generation that would result from the most severe
					 single generating unit contingency. The operating reserves shall be allocated
					 among the utilities in proportion to each control area's peak hour net energy
					 for load for the preceding year, and the summer gross Florida Reliability
					 Coordinating Council (FRCC) capability of its largest unit or ownership share
					 of a joint unit, whichever is greater. Fifty percent shall be allocated on the
					 basis of peak hour net energy for load and fifty percent on the basis of the
					 summer gross FRCC capability of the largest unit. Operating reserves shall be
					 fully available within fifteen minutes. At least 25% of the operating reserves
					 shall be in the form of spinning reserves which are automatically responsive to
					 a frequency deviation from normal.
(2) Treatment of Purchased Power. Only firm
				  purchase power agreements may be included as a resource for purposes of
				  calculating a planned or operating reserve margin. A utility may petition for
				  waiver of this requirement based on the very high availability of specific
				  non-firm purchases.
(3) Treatment
				  of Shared Generating Units. Only the utility which has first call on the
				  generating unit may count the unit towards its planned or operating reserve
				  margin. A utility has first call on a unit if the unit is available and the
				  utility has the contractual right to dispatch the unit to meet its native load
				  and other firm contractual commitments before any other party to the unit's
				  sharing arrangement. A utility may petition the Commission for approval of
				  other methods demonstrating equivalent reliability on a case by case
				  basis.
(4) Treatment of Non-Firm
				  Load. If non-firm load (i.e., customers receiving service under load
				  management, interruptible, curtailable, or similar tariffs) is relied upon by a
				  utility when calculating its planned or operating reserves, the utility shall
				  be required to make such reserves available to maintain the firm service
				  requirements of other utilities.
(5) Buy-through Power for Interruptible
				  Customers. Interruption of service to non-firm customers is not an emergency.
				  As such, a utility shall not be required to provide buy-through power for
				  another utility's interruptible customers under obligatory emergency
				  interchange schedules.
Rulemaking Authority
						366.05(1) FS.
						Law Implemented 366.03,
						366.04(2)(c),
						(5),
						366.055
						FS.
New 7-29-69, Formerly 25-6.35, Amended 9-5-96,
						5-29-01.