ML18127A487
| ML18127A487 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 04/03/1974 |
| From: | Phillips T US Federal Power Commission, Bureau of Power |
| To: | Muller D US Atomic Energy Commission (AEC) |
| References | |
| Download: ML18127A487 (8) | |
Text
AEC DIBDTTON FOR PART 50 DOCKET MA
.A'L (TEMPORARY FORM)
CONTROL NO:
2902 FILE:
ENVIRO FROM:
Federal Power Commission Washington, D. C.
20426 T. A. Philli s DATE OF DOC 4-3-74 DATE REC'D OT&R TO 0 Mr. Muller ORIG 1 signed CC OTHER SENT AEC PDR X
SENT LOCAL PDR X
CLASS UNCLASS PROP INFO INPUT NO C S REC'D DOCKET NO-XXXXX DESCRIPTION:
Ltr re our 2-11-74 ltr......furnishing comment on the Draft Enviro Statement for the St.
Lucie Plant Unit No. 2. ~... ~..
PLANT NAtE: St. Lucie Unit 8 2
ENCLOSURES:
50-389 gktKX'lga D() N()t Remorse FOR ACTION/INFO%(ATION 4>>4-74 AB BUTLER(L)
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20426 50-389 I
Mr. Daniel R. Muller Assistant Director for Environmental Projects Directorate of Licensing Office of Regulation U. S. Atomic Energy Commission Washington, D.
C.
20545 APR 3 Ijy
Dear Mr. Muller:
This is in response to your letter dated February 11, 1974, requesting comments on the AEC Draft Environmental Statement related to the proposed issuance of a cgnstruction permit to the Florida Power and Light Company (Applicant) for the construction of the St. Lucie Plant Unit No.
2 (Docket No. 50-389).
The proposed 850-megawatt unit*would be located on Hutchinson Island on the east coast of Florida in St. Lucie County and would share the same site on which Unit No.
1 is currently under construction and which is scheduled for commercial service in December 1975.
Unit No.
2 is scheduled for cormnercial service in December 1979.
These comments by the Federal Power CommissionIs Bureau of Power staff are made in compliance with the National Environmental Policy Act of 1969 and the August 1, 1973, Guidelines of the Council on Environmental Quality, and are directed to the need for the capacity represented by the St. Lucie Plant Unit No. 2, and to related bulk power supply matters.
In preparing these
- comments, the Bureau of Power staff has considered the AEC Draft Environmental 'Statement; the Applicant's Environmental Report and Amendments thereto; related reports made in accordance with the Cormnission's Statement of Reliability and Adequacy of Electric Service (Docket No. R-362);
and the staff's analysis of these documents together with related information from other FPC reports.
The staff generally bases its evaluation of the need for a specific bulk power facility upon long-term considerations as well as upon the load-supply situation for the peak load period immediately following the:availability of the new 'facility. It
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Mr. Daniel R. Muller should be noted that the useful life of the St. Lucie Unit No.
2 is expected to be 30 years or more.
During that period, the unit will make a significant contribution to the reliability and adequacy of electric power supply in the Applicant's service area.
The App1icant is a member of the Florida subregion of the South-eastern Electric Reliability Council (SERG) which coordinates the planning of the members'ulk power facilities.
The Applicant is interconnected with other utility systems located in peninsular Florida;
- however, no formal power pool exists.
A group of electric systems, including the Applicant, formed the'lorida Electric Power Coordinating Group, effective October 1, 1972, "to assure an adequate and reliable electric power supply in Florida at the lowest possible cost consistent with economic factors and environmental standards established in the public interest."
Active coordination of planning, construction, and utilization of generation and transmission facilities in Florida was included as a means of attaining the objectives of this coordinating group+
,I The difference in capability of the unit, as shown in table 8.2 and table 8.4 of the Draft Environmental Statement (850 versus 853 megawatts),
is trivial and has no significant effect upon the conclu-sions reached.
The historical annual peak (winter) loads'n the Applicant's system reflect 'an average annual rate of, load giowth of 11.8 percent, which was projected for the 1973-1982 period.
The projected loads for the SERG area as a whole have been reported at an annual rate of
'rowth of 9.0 percent.
Both the annual growth rate of load on the Applicant's system and that of the SERC area as a whole are greater than the 7.2 percent historic annual load growth for the contiguous United States.
This may be due in part to the steady growth of economic activity in this ar'ea.
Although the winter peaks of the Florida systems are slightly greater than the preceding summer peaks, the summer peak loads are generally of longer duration than winter peak loads, and both present planning and operating problems.
Florida systems use a reliability planning criterion that the loss-of-load probability will not exceed one day in ten years.
Many U.
S.
systems report the use of the same criterion with the general result that the magnitude of reserve margins fall within a range of 15 to 25 percent of annual peak load.
The Bureau of Power staff recog-nizes that the peninsular nature of the -service area of the Florida systems favors the consideration of the upper range for planned reserve margins, primarily due to the need for a higher degree of self-reliance where support from surrounding systems is limited.
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Mr. Daniel R. Huller The Draft Environmental Statement reports a 1980 summer reserve margin of 2,591 megawatts, or 17.2 percent of'pplicant's peak load with the subject unit available;,and 1,741 megawatts, or 11.5 percent, if it is not available.
The 1980 summer reserve margin for the Florida systems is reported to be 5,303 megawatts, or 20.4 percent of the 'peak load with St. Lucie Unit No.
2 in service; and 4,450 mega-watts, or 17.1 percent, if the unit is not available.
The Bureau of Power staff concludes that the additional capacity equivalent to that represented by the St. Lucie Unit No.
2 is desirable to provide for the projected load growth of the affected systems and to provide reserve capacity with which.to withstand normally encountered contingencies, thus affording a reasonable level of reliability of service to their customers.
Very truly yours, Chief, Bureau of Power
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