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throughout the useful life of the unit using Equations 2 and 3.

(ii) Compute the cost of using oil or natural gas (COST(OIL)) throughout the useful life of the unit using Equations 2 and 3.

(iii) Using Equation 1, compute the difference (DELTA) between COST (ALTERNATE) and COST (OIL). If the difference (DELTA) is less than or equal to zero, a petitioner is not eligible for a permanent or temporary exemption using the general cost test and need not complete the remainder of the general cost test calculation. However, he still may be eligible for a temporary exemption using the special cost test (paragraph (c) of this section). If the difference (DELTA) is greater than zero and if the best practicable cost estimates will not materially change during the first ten years of operation (given the best information available at the time the petition is filed), the petitioner has completed the test and is eligible for a permanent exemption. However, if the best practicable cost estimate will materially change during the first ten years, the petitioner must complete the remainder of the general cost test-the delayed use calculations which follow.

(iv) Recompute COST (ALTERNATE) with Equations 2 and 3, assuming that an alternate fuel is not used as the primary energy source until the start of the second year of operation and that imported petroleum or natural gas is used for the first year of operation. All cash outlays should reflect postponed use of alternate fuel.

(v) Successively recompute COST (ALTERNATE) with Equations 2 and 3, assuming that the alternate fuel use is postponed until the start of the third year, fourth year, and so on, through the beginning of the eleventh year of operation (with imported petroleum or

natural gas used in the years preceding alternate fuel use).

(vi) Compute the difference (DELTA) between each of the ten calculated in

COST(ALTERNATE)s

paragraph (b)(5) (iv) and (v) of this section and the COST(OIL) calculated in paragraph (b)(5)(ii) of this section.

(vii) If all the DELTAS computed in paragraph (b)(5) (iii) and (vi) of this section are greater than zero, the petitioner is eligible for a permanent exemption. If one or more of the DELTAS is less than or equal to zero, he is eligible for a temporary exemption for the period beginning at the start of the first year of operation and terminating at the beginning of the first year in which a DELTA is zero or less.

(c) Cost calculations—special cost test. (1) A petitioner may be eligible for a temporary exemption if he demonstrates that the cost of using an alternate fuel will substantially exceed the cost of using imported petroleum or (natural gas) over the period of the proposed exemption. The period of the proposed temporary exemption may not exceed ten years.

The petitioner must demonstrate that the cost of using an alternate fuel substantially exceeds the cost of using imported petroleum for the first year of operation, the first two years of operation, and so forth, through the period of the proposed exemption. OFE will limit the duration of a temporary exemption to the shortest time possible.

(2) To conduct the test, calculate the difference (DELTA) between the cost of using an alternate fuel (COST (ALTERNATE)) and the cost of using imported petroleum (COST (OIL)) using Equations 4 and 5 below, Equation 3 (paragraph (b)(3) of this section), and the comparison procedures in paragraph (c)(4) of this section.

EQ 4

DELTA COST (ALTERNATE)

COST (OIL)

where COST(ALTERNATE) and COST(OIL) are determined by:

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Capital investment (I) is calculated with Equation 3 (paragraph (b)(3) of this section).

(3) The terms in Equation 5 are the same as those in Equation 2 with the addition of P, the length of the proposed temporary exemption in years. (See paragraph (b)(4) of this section for other terms.)

(4) The step-by-step procedure that follows shows the comparisons which must be made.

(i) Using Equation 5, compute the cost of using an alternate fuel (COST(ALTERNATE)) assuming the length of the proposed exemption is one year.

(ii) Likewise, compute the cost of using imported petroleum or natural gas (COST(OIL)) assuming the length of the proposed exemption is one year. (iii) Compute the difference (DELTA) between COST (ALTERNATE) and COST (OIL) using Equation 4.

(iv) Repeat the calculations made in (i), (ii), and (iii) above, assuming the length of the proposed exemption is two years, three years, four years, and so on, up through the period of the proposed exemption.

(v) A petitioner is eligible for a temporary exemption for the period beginning at the start of the first year of operation and terminating at the beginning of the first year in which a DELTA is zero or less.

(d) Information on parameters used in the calculations. (1) All estimated expenditures, except fuel, shall be expressed in real terms (unadjusted for inflation) by using the prices in effect at the time the petition is submitted.

Instructions for fuel price calculations are contained in appendix II.

(2) Capital investment yearly cash outlays (I1) must include all items that are capital investments for Federal income tax purposes. All purchased equipment that has a useful life greater than one year, capitalized engineering costs, land, construction, environmental offsets, fuel inventory, transmission facilities, piping, etc., that are necessary for the operation of the unit must be included. However, an item must only be included if a cash outlay is required after the decision has been made to build the unit; sunk costs must not be included (e.g., if the firm owns the land, its purchase price may not be included).

NOTE: The guidelines for the fuel inventory for powerplants not using natural gas shall be: (a) All powerplants with only steam driven turbines-78 days, (b) all powerplants with only combustion turbines-142 days, (c) all powerplants with combined cycles-both steam driven turbines and combustion turbines-142 days. The guidelines for the fuel inventory for installations not using natural gas shall be the greater of: (1) 21 days fuel supply, or (2) sufficient fuel to fill sixty (60) percent of the storage volume. The guidelines for the fuel inventory for all facilities using natural gas shall be zero unless the gas supply is interruptible in which case an appropriate inventory of back-up fuel must be included. Other inventory levels may be used if they are more appropriate than these guidelines; however, the source or derivation of these levels must be discussed in the evidential summary.

(3)(i) The annual cash outlays for operations and maintenance expense (OM1) and fuel expense (FL1) for a powerplant may be computed by one of the

following three methods; however, the one chosen must be consistently applied throughout the analysis.

(A) Assume the energy produced by the powerplant equals seventy (70) percent of design capacity times 8760 hours for each year during the life of the powerplant, and compute cash outlays for operations, maintenance, and fuel expenses for the powerplant.

(B) Economically dispatch the new powerplant. The cash outlays for operations, maintenance, and fuel expenses of all powerplants being dispatched (where oil and natural gas are priced according to the procedures of appendix II1) are the corresponding expenses for the purpose of the cost calculation. The dispatch analysis area must be that area with which the firm currently dispatches, anticipates dispatching, and will be interconnected. It must also include all anticipated exchanges of energy with other utilities or powerpools. The outlays for operations, maintenance, and fuel may also be estimated using a methodology that incorporates the benefits of economically dispatching units and provides consistent treatment in the alternate fuel and oil or natural gas cases being compared.

(C) Use a dispatch analysis to project the energy produced by the powerplant for a representative (not atypical) year of operation when consuming an alternate fuel. Compute the cash outlays for operations, maintenance, and fuel expenses for the powerplant based upon the level of energy production estimated for the representative year. The dispatch analysis and fuel expenses for the cost calculation must include oil and natural gas priced according to the procedures of appendix II.1

(ii) When computing the annual cash outlays for operations and maintenance expense (OM1) and fuel expense (FL) for an installation, specify the firing rates and the length of time each firing rate will be maintained.

(4) The discount rate (k) for analyses is 2.9 percent or that which is computed as specified in appendix I. The method of computing the inflation index (IX) is shown in appendix II to part 504. OFE will modify these specified rates from time to time as required by changed conditions after pub

lic notice and an opportunity to comment. However, the relevant set of specified rates for a specific petition for exemption will be the set in effect at the time the petition is submitted or the set in effect at the time a decision is rendered, whichever set is more favorable to the petitioner.

(5)(i) The guidelines for the useful life (N) of all powerplants except nuclear will be thirty-five (35) years. The guidelines for the useful life of a nuclear powerplant will be forty (40) years. The guidelines for the useful life of major fuel burning installations will be forty (40) years. Other useful life projections may be used if they are more appropriate than these guidelines; however, the source or derivation of these projections must be contained in the evidential summary. The summary should include a discussion of engineering, economic historical or other evidence.

(ii) If the units being compared have different useful lives, the petitioner will have to modify his calculation so that the two cash flows being compared have the length of the shorter useful life. To do this, (A) use the shorter of the two useful lives in Equations 2 and 5 for both units, and (B) multiply capital investment (I) of the unit with the longer life (computed with Equation 3) by the following adjustment factor (A):

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lowed under Federal tax law must be reflected in the computations. The petitioner must use the method of depreciation which results in the greatest present value of the cash flow due to the tax and depreciation effect. The marginal income tax rate (t1) is the firm's anticipated marginal Federal income tax rate in year i. The relevant investment tax credits, depreciation methodology, and marginal Federal income tax rates for a specific exemption petition will be those prescribed by Federal law in effect (or those tax parameters which are known with certainty will be in effect) at the time a decision is rendered. (However, if an investment tax credit expires in a certain year under the law which is in effect at the time the petition is submitted, the petitioner must assume that it will in fact expire in that year.)

(7) If powerplants are being compared, the design capacities or the maximum sustained energy per unit of time that could be produced must be the same. If installations are being compared, the maximum sustained energy per unit of time that could be produced must be the same.

(8) All estimated cash outlays must be computed in accordance with generally accepted accounting principles consistently applied.

(9) The scope of the estimates of relevant costs (as discussed above) of units being compared must be the

same.

(10) All allowances for uncertainty and risk in the cost estimates must be explicit.

(11) All cash outlays must be net of any government subsidies or grants.

(e) Evidence in support of the cost calculation. Petitioners for an exemption which requires the use of the cost calculation shall certify that the cost of using alternate fuel substantially exceeds the cost of using oil as primary energy source as calculated in this section. A brief summary of the petitioner's supporting calculations and estimates shall be submitted with the certification. The summary should include the following:

(1) Cash outlays, Investment tax credits, depreciation methodologies, and anticipated salvage for capital in

vestments including a description of all major construction and equipment; (2) Annual cash outlays for operations and maintenance expenses including the formulas used to compute them; and

(3) Annual cash outlays for delivered fuel expenses including the formulas used to compute them.

[46 FR 59903, Dec. 7, 1981; 46 FR 63033, Dec. 30, 1981; 47 FR 15314, Apr. 9, 1982; 54 FR 52893, Dec. 22, 1989]

§ 503.7 State

approval-general requirement for new powerplants.

(a) Where approvals by the appropriate State regulatory authority are required prior to the construction or use of a new powerplant, a petition for an exemption for consideration by OFE may be submitted to OFE prior to obtaining such approvals from the State regulatory authority.

(b) An exemption granted for a powerplant shall not become effective until an adequate demonstration has been made to OFE that all applicable approvals required by the State regulatory authorities have been obtained.

§ 503.8 No alternate power supplygeneral requirement for certain exemptions for new powerplants.

(a) Application. To qualify for an exemption, except in the case of an exemption for cogeneration units, section 213(c) of the Act requires a demonstration that, despite reasonable good faith efforts, there is no alternative supply of electric power available within a reasonable distance at a reasonable cost without impairing short-run or long-run reliability of service. If a petitioner is unable to demonstrate that there is no alternate supply during the first year of operation, OFE will conclude that the absence of the proposed powerplant will not impair short-term reliability of service, and as a result will not grant the exemption. Such action would not impair long-term reliability of service, since a petition may be submitd for a powerplant that would begin operation in a subsequent year.

(b) Criteria. To meet the demonstration required under paragraph (a) of this section, a petitioner must certify that:

(1) A diligent effort has been made to purchase firm power for the first year of operation to cover all or part of the projected shortfall at a cost that is less than ten (10) percent above the annualized cost of generating power from the proposed plant (including the capital, operation and maintenance expenses, and fuel prices); and

(2)(i) Despite these efforts, the reserve margin in the petitioner's electric region, normal dispatch area, or service area, in the absence of the proposed plant, would fall below twenty (20) percent during the first year of proposed operation; or

(ii) Despite these efforts, the reserve margin will be greater than twenty (20) percent but reliability of service would be impaired. In such case, the certification must be related to factors not included in the calculation of reserve margin, such as transmission constraints.

(c) Evidence. The petition must include the following evidence in order to make the demonstration required by this section:

(1) Duly executed certification required under paragraph (b) of this section; and

(2) Exhibits containing the basis for the certification submitted under this section (including those factual and analytical materials deemed by the petitioner to be sufficient to support its certification to this general requirement).

(d) FERC consultation. OFE will forward a copy of any petition for which a showing is required under this section to FERC promptly after it is filed with OFE, and OFE will consult with FERC before making the no alternate supply of power finding.

[46 FR 59903, Dec. 7, 1981, as amended at 47 FR 15314, Apr. 9, 1982; 54 FR 52894, Dec. 22, 1989]

§ 503.9 Use of mixtures-general requirement for certain permanent exemptions.

(a) Criteria. To qualify for a permanent exemption, except in the case of an exemption for fuel mixtures, section 213(a)(1) of the Act requires a demonstration that the use of a mixture of natural gas and petroleum and an alternate fuel for which an exemption

under 10 CFR 503.38 (Fuel mixtures) would be available, would not be economically or technically feasible.

(b) Evidence. The petition must include the following evidence in order to make the demonstration required by this section:

(1) Duly executed certifications to the criteria set forth in paragraph (a) of this section; and

(2) Exhibits containing the basis for the certifications submitted under this section (including those factual and analytical materials deemed by the petitioner to be sufficient to support its certifications to this general requirement.)

NOTE: In meeting this general requirement, OFE will require a petitioner to examine only mixtures of oil and coal and natural gas and coal, or, where petitioner wishes to examine an additional or substitute mixture, such other alternate fuels as OFE and the petitioner agree are reasonable to petitioner's circumstances.

[46 FR 59903, Dec. 7, 1981, as amended at 54 FR 52894, Dec. 22, 1989]

§ 503.10 Use of fluidized bed combustion not feasible-general requirement for permanent exemptions. (a) OFE finding. Except in the case of an exemption for fuel mixtures, OFE may deny permanent exemptions authorized under section 212 of the Act if OFE finds on a site-specific or generic basis that use of a method of fluidized bed combustion of an alternate fuel is economically and technically feasible.

(b) Demonstration. If OFE has made such a finding, OFE will deny a petitioner's request for exemption unless the petitioner demonstrated that the use of a method of fluidized bed combustion is not economically or technically feasible. The petition or any supplement thereto required by OFE must include the following evidence:

(1) If use of a method of fluidized bed combustion were to be required, evidence that the petitioner would be eligible for a permanent exemption for lack of alternate fuel supply, site limitations, environmental requirements, lack of adequate capital, or State or local requirements; or

(2) Use of a method of fluidized bed combustion is not technically or eco

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