Florida Administrative Code › 25 - PUBLIC SERVICE COMMISSION › 25 - Departmental › Chapter 25-6 - ELECTRIC SERVICE BY ELECTRIC PUBLIC UTILITIES › Part III - GENERAL MANAGEMENT REQUIREMENTS › Section 25-6.0437 - Cost of Service Load Research

Current through Reg. 50, No. 138; July 16, 2024
(1)
				  Applicability. This rule shall apply to all investor-owned electric utilities
				  over which the Commission has jurisdiction and which provide electric service
				  to more than 50, 000 retail customers at the end of any calendar
				  year.
(2) Purpose. The primary
				  purpose of this rule is to require that load research that supports cost of
				  service studies used in ratemaking proceedings is of sufficient precision to
				  reasonably assure that tariffs are equitable and reflect the true costs of
				  serving each class of customer. Load research data gathered and submitted in
				  accordance with this rule will also be used by the Commission to allocate costs
				  to the customer classes in cost recovery clause proceedings, in evaluating
				  proposed and operating conservation programs, for research, and for other
				  purposes consistent with the Commission's responsibilities.
(3) Sampling Plan. Within 90 days of becoming
				  subject to this rule, each utility shall submit to the Commission a proposed
				  load research sampling plan. The plan shall provide for sampling all rate
				  classes that account for more than 1 percent of a utility's annual retail
				  sales. The plan shall provide that all covered rate classes shall be sampled
				  within two years of the effective date of this rule. The sampling plan shall be
				  designed to provide estimates of the averages of the 12 monthly coincident
				  peaks for each class within plus or minus 10 percent at the 90 percent
				  confidence level. The sampling plan shall also be designed to provide estimates
				  of the summer and winter peak demands for each rate class within plus or minus
				  10 percent at the 90 percent confidence level, except for the General Service
				  Non-Demand rate class. The sampling plan shall be designed to provide estimates
				  of the summer and winter peak demands for the General Service Non-Demand rate
				  class within plus or minus 15 percent at the 90 percent confidence
				  level.
(4) Review of Proposed Plan.
				  Except where a utility has requested a formal ruling by the Commission, within
				  90 days after submission, the Commission's Division of Economics shall review
				  each utility's plan to determine whether it satisfies the criteria set forth in
				  subsection (3) above and shall notify the utility in writing of its decision
				  accepting or rejecting the proposed sampling plan. If a proposed plan is
				  rejected, the written notice of rejection shall state clearly the reasons for
				  rejecting the proposed plan. If a utility's proposed plan is rejected, the
				  utility shall submit a revised sampling plan to the Commission within 60 days
				  after receiving the notice of rejection. Where a utility has requested staff
				  review of its sampling plan and the plan has been rejected the utility may
				  petition the Commission for approval of the plan. If a utility has not
				  submitted a satisfactory sampling plan within 6 months following the submission
				  of the initially proposed plan, the Commission may prescribe by order a
				  sampling plan for the utility.
(5)
				  Use of Approved Sampling Plan. The approved sampling plan shall be used for all
				  load research performed for cost of service studies and other studies submitted
				  to the Commission until a new sampling plan is approved by the
				  Commission.
(6) Revised Sampling
				  Plans. Each utility subject to this rule shall submit a current, revised
				  sampling plan to the Commission no less often than every three years after the
				  most recent sampling plan was required to be submitted. Any new or revised plan
				  shall be developed using data from the utility's most current load research to
				  determine the required sampling plan to achieve the precision required in
				  subsection (3) of this rule. New or revised plans shall be reviewed by the
				  Commission pursuant to subsection (4) of this rule.
(7) Load Research Data to be Reported. Each
				  utility subject to this rule shall perform a complete load research study in
				  accordance with the specifications of this rule no less often than every three
				  years. Each utility shall, within 120 days following completion of the study,
				  submit to the Commission the results of each load research study completed
				  after the effective date of this rule. The submission shall include a detailed
				  calculation of the average 12 coincident peak and class load factors for each
				  covered rate class based upon the load research results.
(8) Hourly Data to be Available Upon Request.
				  Each utility subject to this rule shall make available within 30 days of a
				  request by the Commission the estimated hourly demands by class for all hours
				  in the year derived from this load research.
Rulemaking Authority
						366.05(1),
						350.127(2) FS.
						Law Implemented 350.117,
						366.03,
						366.04(2)(f),
						366.05(1),
						366.06(1),
						366.82(3), (4)
						FS.
New 3-11-84, Formerly 25-6.437, Amended
						1-6-04.