TARIFF DECISION FOR FFS REFINERS (PTY) LTD FOR ITS CAPE TOWN HARBOUR STORAGE FACILITY LOCATED AT PORT CAPE TOWN, WESTERN CAPE PROVINCE FOR 2020 ...

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TARIFF DECISION FOR FFS REFINERS (PTY) LTD FOR ITS CAPE TOWN HARBOUR STORAGE FACILITY LOCATED AT PORT CAPE TOWN, WESTERN CAPE PROVINCE FOR 2020 ...
TARIFF DECISION FOR FFS REFINERS (PTY) LTD FOR
  ITS CAPE TOWN HARBOUR STORAGE FACILITY
 LOCATED AT PORT CAPE TOWN, WESTERN CAPE
   PROVINCE FOR 2020, 2021 AND 2022 LICENCE
         NUMBER: PPL.sf.F3/80/10/2008

               10 September 2020
TABLE OF CONTENTS
Introduction ........................................................................................................................... 6
Applicable Law ...................................................................................................................... 7
The Methodology .................................................................................................................. 7
Decision-Making Process ..................................................................................................... 7
The Application ..................................................................................................................... 8
   ASSESSMENT OF THE APPLICATION ...................................................................................... 8
Calculation of The Allowable Revenue (AR)......................................................................... 8
Regulatory Asset Base (RAB)............................................................................................... 8
Property, Plant And Equipment (PPE) .................................................................................. 9
Net Working Capital ............................................................................................................ 10
Deferred Tax ............................................................ERROR! BOOKMARK NOT DEFINED.
Weighted Average Cost of Capital (WACC) ....................................................................... 11
   COST OF EQUITY ............................................................................................................... 12
   COST OF DEBT .................................................................................................................. 12
Debt To Equity Ratio ........................................................................................................... 12
Operational Expenditure (E) ............................................................................................... 13
Depreciation and Amortisation ............................................................................................ 14
Tax Expense (T).................................................................................................................. 15
Allowable Revenue (AR) ..................................................................................................... 16
Volumes .............................................................................................................................. 16
Tariff ................................................................................................................................... 16
Conclusion .......................................................................................................................... 17

LIST OF TABLES
Table 1: Tariff approved for the storage facility ........................................................... 4
Table 2: Calculation of Net Working Capital .............................................................. 10
Table 3: WACC calculation ........................................................................................ 13
Table 4: Operating Expenses .................................................................................... 14
Table 5: Tax Expense Calculation ............................................................................. 15
Table 6: AR Calculation ............................................................................................. 17
Table 7: Tariff calculation ........................................................................................... 18

                                                                                                                            Page 2 of 17
ABBREVIATIONS AND ACRONYMS

AR           Allowable Revenue
BER          Bureau of Economic Research
CAM          Cost Allocation Manual
CAPM         Capital Asset Pricing Model
CPI          Consumer Price Index
CPIf         Consumer Price Index Forecast
Cpl          Cents per litre
APP          Application
FC           Forecast
Act          Actual
NERSA        National Energy Regulator of South Africa
NRBTA        Net Revenue Before Tax Allowance
PPE          Property, Plant, Vehicles and Equipment
RAB          Regulatory Asset Base
PPS          Petroleum Pipelines Sub-Committee
RFR          Regulatory Financial Report
RRM          Regulatory Reporting Manuals
SRAB         Starting Regulatory Asset Base
the Act      the Petroleum Pipelines Act, 2003 (Act No.60 of 2003)
TOC          Trended Original Cost
VAT          Value Added Tax
WACC         Weighted Average Cost of Capital

                                                                     Page 3 of 17
THE NATIONAL ENERGY REGULATOR OF SOUTH AFRICA

In the matter regarding

THE 2020, 2021 AND 2023 TARIFF APPLICATION FOR THE STORAGE FACILITY IN
CAPE TOWN HARBOUR, WESTERN CAPE PROVINCE

By

FFS REFINERS (PTY) LTD (LICENCE NUMBER: PPL.SF/F3/80/10/2008)

                                            THE DECISION

1. On 10 September 2020, the National Energy Regulator of South Africa (NERSA or ‘the
     Energy Regulator’) approved tariffs for the 2020 Financial Year (FY), 2021 FY and 2022
     FY, as a condition of FFS Refiners (Pty) Ltd’s operation licence, for the operation of its
     petroleum storage facility located at Cape Town Harbour Tank Farm in Western Cape
     Province (Licence Number: PPL.sf.F3/80/10/2008).

2. The tariffs approved by NERSA for the petroleum storage facility are maximum tariffs,
     expressed in Rands per cubic metre (R/m3/month) and are exclusive of the Value Added
     Tax (VAT). The tariffs for the petroleum storage facility are shown in Table 1 below.

     Table 1: Tariff approved for the storage facility
                                      2020                   2021                 2022
                                  (R/m3/month)           (R/m3/month)         (R/m3/month)
      FFS Refiners                      423                  460                   441

3. The tariffs will be applicable for the periods starting from 10 September 2020 to 31
     December 2020, 1 January 2021 to 31 December 2021, 1 January 2022 to 31 December
     2022. Upon lapsed of the 2022 tariff period, the 2022 tariff will remain in force until
     NERSA takes a decision to approve a new tariff for the storage facility in line with section
     28(5)(b) of the Petroleum Pipelines Act, 2003 (Act No. 60 of 2003) [‘the Act’].

4. Although NERSA approved the tariffs applied for, for future tariff applications, FFS is
     required to use the elements of the Allowable Revenue (AR) calculated by NERSA
     and/or the actual costs incurred as a base when submitting future tariff applications. The
     elements of AR determined by the Energy Regulator may still be subjected to a further
     prudency assessment and verification.
                                                                                     Page 4 of 17
5. Furthermore, FFS is required to comply with the requirements of Regulation 9 of the
   Regulations made in terms of section 33(1) of the Act (‘the Regulations’) and make a
   financial provision for the rehabilitation of land used in connection with the licensed
   activity.

                                                                               Page 5 of 17
REASONS FOR DECISION

Introduction

1. On 8 January 2010, the National Energy Regulator South Africa (NERSA or ‘the Energy
        Regulator) issued a license with conditions to FFS Refiners (Pty) Ltd to operate its
        petroleum storage facility located at Cape Town Harbour Tank Farm in Western Cape
        Province (License number: PPL.sf.F3/80/10/2008). The facility is owned and operated
        by FFS Refiners, a privately owned company with limited liability established in terms of
        the Companies Act, 1973 (Act No.61 of 1973).

2. On 22 September 2014, the Energy Regulator approved the first amendment of the
        conditions of a licence issued to FFS for the operation of its petroleum storage facility at
        Cape Town Harbour Tank Farm in Western Cape Province.

3. The amendment sought to add a new storage tank. After the amendment, the Cape
        Town Harbour facility consists of five storage tanks.

4. FFS is a private company registered in terms of the company laws of South Africa, with
        Company Registration No. 1986/003962/07. FFS Refiners recycles and stores a variety
        of used petroleum products.

5. On 20 February 2020, FFS submitted a tariff application for its Cape Town Harbour
        storage facility for the period 1 January 2020 to 31 December 2022 (3 years). The
        application was declared adequate on 2 March 2020.

6. This is the FFS’s first tariff application after amendment of the conditions of the licence.

7. The application is based on the Tariff Methodology for the approval of Tariffs for
        Petroleum Loading Facilities and Petroleum Storage Facilities, Version 4, approved on
        24 August 20171 (‘the Tariff Methodology’).

1
    Available at www.nersa.org.za

                                                                                        Page 6 of 17
8. In this tariff application, FFS is applying for tariffs of R430/m3/month for the 2020 FY, R1
       446/m3/month for the 2021 FY and R463/m3/month for the 2022 FY. The tariffs applied
       for are maximum tariffs and are exclusive of Value Added Tax (VAT). The tariff
       application by FFS is based on the Tariff Methodology for the approval of Tariffs for
       Petroleum Loading Facilities and Petroleum Storage Facilities, Version 4, approved on
       24 August 2017 (‘the Tariff Methodology’).

Applicable Law
9. The legal basis for NERSA to approve tariffs for petroleum loading and storage facilities
       is derived from the National Energy Regulator Act, 2004 (Act No. 40 of 2004) (‘NERSA
       Act’), read with the Petroleum Pipelines Act, 2003 (Act No. 60 of 2003) (‘the Act’)2.

The Methodology
10. NERSA is required by section 28(2)(a)(i) of the Act to approve tariffs based on a
       systematic methodology applicable on a consistent and comparable basis. The tariff
       application by the FFS was prepared using the Tariff Methodology.

11. The Tariff Methodology prescribes the use of the Trended Original Cost (TOC) method
       for the valuation of assets.

12. FFS has in this case used the TOC valuation method to determine its Property, Plant,
       Vehicles and Equipment (PPE) values.

Decision-Making Process
13. As part of the public consultation process, NERSA published the non-confidential
       version of the tariff application on its website for public comment. Notices inviting the
       public to submit written comments on the tariff application were published in the Beeld
       and the Business Day Newspapers on 24 June 2020. The closing date for receiving
       public comments was 4 August 2020. The public participation process was carried out
       in accordance to section 4 of the Promotion of Administrative Justice Act, 2000 (Act No.
       3 of 2000).

14. No comments were received from stakeholders or members of the public by closing
       date.

2   Available at www.nersa.org.za

                                                                                     Page 7 of 17
15. Due to the COVID-19 pandemic restrictions, the Energy Regulator waived the public
      hearing for this application. NERSA considers the request for submission of written
      comments as a sufficient form of public consultation for this application.

THE APPLICATION
Assessment of the Application
16. NERSA used the TOC Tariff Methodology to assess the outcome of the tariffs applied
      for by FFS for the Cape Town Harbour storage facility.

17. Data supplied by FFS was used for most of the calculations performed in this evaluation.
      Where this is not the case, the reasons for not using the FFS’ supplied data are
      provided.

Calculation of the Allowable Revenue (AR)
18. In accordance with the Tariff Methodology, the following formula was used to determine
      the FFS’ AR:

                   AR         = (RAB x WACC) + E + D ± C +T

      Where:
      RAB         = Regulatory Asset Base
      WACC        = Weighted Average Cost of Capital
      E           = Expenses: Operating and Maintenance Expenses for the tariff period
                    under review
      D          = Depreciation Expense for the tariff period under review
      C          = Clawback Adjustment from a preceding tariff period in relation to the latest
                    estimates for that tariff period
      T          = Tax: estimated Tax Expense for the tariff period under review

19.       The elements of the AR are discussed in more detail in the paragraphs below.

Regulatory Asset Base (RAB)
20. According to the Tariff Methodology, RAB is to be determined by applying the following
      formula:

                                                                                     Page 8 of 17
RAB = (V - d) + w ± dtax

   Where:
   V         = Value of Operating Property, Plant, Vehicles and Equipment
   d         = Accumulated Depreciation and Accumulated Amortisation of inflation
               write-up for the period up to the commencement of the tariff period under
               review
   w         = Net Working Capital
   dtax      = Deferred Tax

Property, Plant and Equipment (PPE)
21. FFS states that the Starting Regulatory Asset Base (SRAB) as approved by NERSA
   has been trended to arrive at the qualifying RAB values for each tariff period. The TOC
   asset valuation method was used in accordance with the Tariff Methodology. The SRAB
   was trended using the Consumer Price Index forecast (CPIf).

22. In its application, FFS determined the PPE values of R199.57 million, R202.75 million,
   and R205.16 million for the 2020 FY, 2021 FY, 2022 FY, respectively. NERSA
   calculated the PPE value to be R200.52 million, R204.69 million, and R208.70 million
   for the 2020 FY, 2021 FY, 2022 FY, respectively.

23. The difference between the PPE value submitted by FFS and those determined by
   NERSA emanates from the different Consumer Price Index forecast (CPIf) values used
   in trending the asset values. NERSA used the most recent CPIf for the period under
   review (5.60%), while FFS used the latest CPIf available at the time the tariff application
   was compiled (5.10%). The CPIf data used by NERSA was sourced from the Bureau of
   Economic Research (BER) and is published on the NERSA website.

24. Any difference between the asset values used in the determination of tariffs and the
   actual prudently incurred costs will be subject to clawback in the subsequent tariff
   periods, once the audited costs are submitted and verified through the Regulatory
   Reporting Manuals (RRM).

                                                                                  Page 9 of 17
Net Working Capital
25. Net Working Capital (w) refers to the various regulated business operation’s funding
    requirements other than PPE in service. These funding requirements include
    Inventories, Trade Receivables, Operating Cash and Trade Payables.

26. The following formula from the Tariff Methodology was used to determine the Net
    Working Capital.

      Net Working Capital = Inventory + Trade Receivables + Operating Cash – Trade Payables

27. FFS calculated its working capital by considering the following elements:
          Trade receivables are based on 30 days of turnover based on current customer
           contract;
          External trade payables are settled within 45 days; and
          The allowance for operating cash is taken as a standardized factor of 45 days
           operating expenditure.

28. NERSA calculated the net working capital based on 30 days of AR for receivables,
    operating cash is based on 45 days of operating expenditure (opex) and trade payables
    are based on 45 days of operating expenditure. The comparison of working capital is
    shown in Table 2 below.

    Table 2: Calculation of Net Working Capital
                                     FFS                               NERSA
     Net Working
     Capital R’000      2020        2021           2022      2020       2021        2022

     AR                76 965      79 816         82 742    75 637     78 854      82 293
     Operating
     Expenses           31 505      33 402         35 518    31 505     33 402     35 518
     Receivables        6 195       6 449         6 755     6 126       6 386       6 665
     Operating cash     2 582       2 745         2 919     3 884       4 118       4 379
     Less Payables     (2 582)     (2 745)        (2 919)   (3 884)    (4 118)     (4 379)
     Net Working
                        6 195       6 449         6 755     6 126       6 386       6 665
     Capital

29. The difference between the Net Working Capital calculated by FFS and NERSA is due
    to the different AR values used in determining the Trade Receivables value and also the
    different days used to calculate operating cash and trade receivables.

                                                                                    Page 10 of 17
30. The Net Working Capital and the PPE value were added to determine the RAB value
       on which a return is earned. The RAB values are depicted in Table 3 below.

      Table 3: Calculation of the RAB

                                                         FFS                                    NERSA
         Net Working
         Capital (R’000)              2020              2021            2022           2020      2021      2022

         PPE-d                    199 567              202 753         205 159        200 516   204 687   208 696
         Net Working
                                      6 195             6 449           6 755          6 126     6 386     6 665
         Capital
                                        -                 -               -              -         -         -
         Dtax(liability)
         RAB                      205 762              209 642         211 914        206 642   211 073   215 361

31. The difference in the RAB values calculated by FFS and NERSA is due to the difference
       in the PPE and Net Working Capital values calculated by both parties.

Weighted Average Cost of Capital (WACC)
32. Section 5 of the Tariff Methodology stipulates that the following formula must be used
       to determine the WACC:
                                         E
                                         q

                                                                           D
                                                                           t
           W
           A
           C
           C

                                                       *
                                                       K
                                                       e

                                                                                      *
                                                                                      K
                                                                                      d

                                                                                 
                                      D
                                      t

                                              E
                                              q

                                                                       D
                                                                       t

                                                                             E
                                                                             q

                                                                           
                                                                               

          Where:
          Eq           =              Shareholders’ Equity
          Dt           =              Interest Bearing Debt
          Ke           =              Post-tax, real Cost of Equity derived from the Capital Asset Pricing
                                      Model (CAPM)
          Kd           =              Post-tax, real3 Cost of Debt

33. In the tariff application, FFS states that the WACC calculation is in line with the Tariff
       Methodology. In calculating the WACC, the following components of the WACC were
       analysed:
         a) Cost of Equity;
         b) Cost of Debt; and
         c)    Debt to Equity Ratio.

3
    First convert from pre- to post-tax and then from nominal to real.

                                                                                                          Page 11 of 17
Cost of Equity
34. The Tariff Methodology prescribes that the Cost of Equity be determined according to
    the Capital Asset Pricing Model (CAPM). FFS applied the CAPM to calculate their Cost
    of Equity.

35. FFS applied a Risk Free Rate (Rf) of 5.30%, a Market Risk Premium (MRP) of 5.20%
    and Beta of 0.82, which resulted in a Cost of Equity of 18.56%.

36. NERSA applied a Rf of 5.31%, MRP of 4.75% and a Beta of 0.75, which resulted in a
    Cost of Equity of 17.87%.

37. The Tariff Methodology requires that data used to calculate the Cost of Equity be that
    of 12 months prior to the commencement of the tariff period under review. In this regard,
    the data used by NERSA in its determination of Cost of Equity is that of December 2018,
    while FFS used data as at August 2018, hence the difference between the Cost of Equity
    values.

Cost of Debt
38. FFS calculated a Cost of Debt of 2.00% (post-tax, real) using a CPIf for the tariff period
    under review of 5.10% and a nominal Cost of Debt of 10.0% for the tariff periods under
    review.

39. NERSA calculated a real Cost of Debt of 1.52% using the most recent CPIf for the period
    under review, namely 5.60% and a nominal Cost of Debt of 10%. Therefore, NERSA’s
    and the FFS’ calculations differ due to the use of different CPIf values.

Debt to Equity Ratio
40. The Tariff Methodology requires a minimum debt to equity ratio of 30:70 for the efficient
    operation of the licenced activity.

41. The Tariff Methodology states that, “the actual interest bearing debt and the equity
    pertaining to the regulated assets for the tariff period under review must be subject to
    the Energy Regulator finding the licensee’s debt to equity ratio reasonable. If after
    conducting reasonableness checks, the Energy Regulator finds the debt ratio to be
    unreasonable, the Energy Regulator must assume a reasonable debt ratio. A minimum
    debt to total capital level of 30% will be assumed reasonable”.

                                                                                 Page 12 of 17
42. FFS indicated that its actual debt ratio to equity ratio is 20:80. Therefore, FFS had to
    base its calculations on the minimum debt to equity ratio of 30:70 in calculating its
    WACC value.

43. NERSA also used a debt to equity ratio of 30:70 in determining its WACC as the Tariff
    Methodology requires a minimum debt to equity ratio of 30:70 for the efficient operation
    of the licenced activity.

WACC
44. FFS calculated its real WACC to be 13.59% and NERSA calculated a WACC of 13%.
    The difference in the WACC calculated by FFS and that calculated by NERSA is due to
    the different Cost of Equity and Cost of Debt values. The WACC calculation by the FFS
    and by NERSA is depicted in Table 3 below.

    Table 3: WACC calculation
     Detail                             Formula           FFS           NERSA
     Risk Free Rate (before-tax real)   a                   5.30%           5.31%
     Market Risk Premium (real)         b                   5.20%           4.75%
     Beta                               c                    0.82            0.75
     Cost of Equity (post-tax real)     e=(a+(b*c))         18.56%          17.87%
     Cost of Debt (Pre-tax)             e                   10.00%          10.25%
     Corporate tax rate                 f                        28%         28%
     Nominal Cost of Debt               g=e*(1-f)               7.20%       7.20%
     CPI forecast                       h                       5.10%       5.60%
     Cost of Debt (post-tax real)       I=(1+g)/(1+h)-1         2.00%       1.52%
     Capital Structure:
     Debt ratio                         j                       30%             30%
     Equity Ratio                       k                    70%             70%
     WACC                               l=(d*k)+(i*j)       13.59%          13.00%

Operating Expenditure (E)
45. Regulation 5(2) read with regulation 4(2)(a) of the Regulations made under the
   Petroleum Pipelines Act, 2003 (Act No. 60 of 2003) [‘the Regulations’], provides that the
   tariffs approved by the Energy Regulator must enable an efficient licensee to recover the
   reasonable operational and maintenance expenses of the storage facility in the year in
   which they are incurred.

46. The FFS licensed storage facility does not generate any revenue from external
   customers, as the facility is used entirely for FFS’s own use. The licensed activity

                                                                                  Page 13 of 17
accounts for 80% of the group’s total expenses allocated according to throughput
   percentage.

47. FFS states that expenses are planned for the efficient operation and maintenance of the
   core business. These expenses are to be categorised in accordance with the Regulatory
   Reporting Manual (RRM). The fully allocated cost attribution approach for the allocation
   of costs is used.

48. NERSA accepts the operational expenses projections by FFS. (refer to Table 4). Any
    difference between the expenses provided in this tariff application and actual expenses
    incurred will be subject to a giveback or clawback in the next tariff period.

49. The yearly increases of estimated expenses are based on a CPI values for the tariff
    periods applied for. The CPI forecasts are published on the Energy Regulator’s website
    and are sourced from the BER.

    Table 4: Operating Expense
                                          2020              2021               2022
      Expense Description                  R                  R                  R
      Fixed Cost                          31 505 000         33 402 000         35 518 000
      Total                               31 505 000         33 402 000         35 518 000

50. NERSA allows the projected costs subject to further verifications and audits. Any
    difference between the expenses provided in this tariff application and actual expenses
    incurred would be subject to a clawback in favour of the customers or FFS in the next
    tariff determinations.

Depreciation (D)
51. Section 8.1 of the Tariff Methodology prescribes that Depreciation be calculated on a
    straight line basis over the service life of each of the assets or classes of assets.

52. FFS depreciated its assets on a straight line basis using the useful life of 25 years and
    arrived at the values of R6.33 million for the 2020 FY, 2021 FY and 2022 FY.

53. NERSA also applied a straight line basis to calculate depreciation and arrived at the
    same values for the 2020 FY, 2021 FY and 2022 FY.

                                                                                     Page 14 of 17
Tax Allowance (T)
54. Section 7.1 of the Tariff Methodology states that:
    “Each licensee must make a once off election between the use of either (a) flow-through
    (actual tax) payment, or (b) notional tax payment”.

55. FFS has elected to use notional tax. NERSA interprets a notional tax expense to mean
    the tax due according to accounting requirements rather than the actual tax payable in
    the period under review.

56. Section 7.3 of the Tariff Methodology prescribes the following formula for calculating the
    notional tax expense:

                                         Tax      =    {(NRBTA)/ (1-t)*t}

    Where:

    NRBTA = Net Revenue before Tax Allowance

                 = {(RAB*WACC) + E + D (historic & write up) ±C} - {E + Depreciation (historic))}
    t            = Prevailing Corporate Tax Rate of the licensee

57. The tax calculation is shown in Table 5 below.

   Table 5: Tax Expense Calculation
                                                      FFS                            NERSA
                    R’000
                                           2020       2021      2022        2020      2021       2022
        Allowable Revenue before tax
                                          66 008      68 592   71 291       65 052   67 900     70 968
        allowance
         Less: Operational Expenses       31 505      33 402   35 518       31 505   33 402     35 518
         Less: Depreciation (historic)     6 329       6 329    6 329        6 329    6 329      6 329
         Less: Clawback                      0           0        0            0        0          0
        Taxable income before Gross
                                          28 174      28 861   29 444       27 218   28 168     29 121
        up
        Taxable income after Gross
                                          39 131      40 084   40 895       37 803   39 123     40 446
        up (taxable income/1-t)
        Tax Component in income
                                          10 957      10 585   11 451       10 585   10 954     11 325
        (i.e. Gross up * 28%)

58. Table 5 above shows that there is a difference in tax allowance expense due to a
    different AR (before tax) being used by FFS and NERSA in calculating tax expense.

                                                                                       Page 15 of 17
Allowable Revenue (AR)
59. FFS calculated the AR based on Rate of Return (ROR) approach. This is in accordance
      with the Tariff Methodology.

60. NERSA also performed the calculations of AR based on the ROR approach. The
      comparison between the AR calculated by FFS and NERSA are shown in Table 6 below.

Table 6: AR Calculation
                                             FFS                           NERSA
             R’000
                                   2020      2021      2022      2020        2021         2022
 Asset value (PPE – d) – ToC      199 567   202 753   205 159   200 516    204 687       208 696
 Net Working Capital (w)           6 195     6 449     6 755     6 126      6 386         6 665

 RAB                              205 762   209 642   211 914   206 642    211 073       215 361

 Ke                               18.56%    18.56%    18.56%    17.87%      17.87%       17.87%
 Kd                               2.00%      2.00%    2.00%      1.52%       1.52%        1.52%

 WACC                             13.59%    13.59%    13.59%    13.00%      13.00%       13.00%
 Return on Investment             27 851    28 198    28 447    26 864      27 440       27 997
   Operating Expenses             31 505    33 402    35 518    31 505      33 402       35 518
   Depreciation                    6 329     6 329     6 329     6 329       6 329        6 329
   Amortisation                     323       662       998       354         729         1 124
   Tax Expense                    10 957    11 224    11 451    10 585      10 954       11 325
 Allowable Revenue                76 965    79 816    82 742    75 636      78 854       82 293

61. The difference in AR is mainly due to the RAB, WACC, tax expenses and Amortisation
      calculated by FFS and NERSA.

Volumes
62. FFS states that Cape Town Harbour Depot is totally committed to Petro SA and Eskom
      as a strategic stockholding, no estimate of volume throughput can be given. The
      throughput depends totally on the availability of electricity through the Eskom grid and
      the extent that Eskom needs to run the emergency peaking plant generators. FFS has
      assumed 12 stock turns per annum.

63. NERSA accepts the use of total operating capacity as proposed way of estimating
      volumes for FFS. NERSA will continuously monitor this against the volumes submitted
      to NERSA on a monthly basis, any difference will be subject to a clawback adjustment
      in future tariff periods.

                                                                                    Page 16 of 17
Tariff
64. The tariffs calculated by FFS and NERSA are based on the total AR divided by the total
    operating capacity. The proposed tariffs are expressed as Rands per cubic metre of
    tank capacity per month and are exclusive of VAT.

65. The tariffs calculated by FFS and NERSA are summarised in Table 7 below.

    Table 7: Tariff calculation
                                             FFS                      NERSA
                                   2020     2021     2022     2020     2021       2022
     Allowable Revenue (R’000)    76 965   79 816   82 742   75 637   78 854     82 293
     Volume (m3)                    179      179      179      179      179        179
     Tariff ( Rands/m3 /month)     430      446      463      446          441    460
     % difference                                            1.73%     1.20%     0.54%

66. The differences in the tariffs applied for by FFS and those determined by NERSA are
    due to the following:
    a) the RAB values in the application are different from those determined by the NERSA
         due to different net working capital and amortisation;
    b) the different WACC values for the tariff periods under review, resulted in different
         returns on investments due to the different Risk free, MRP and CPIf applied by both
         parties; and
    c) the different values in RAB, WACC resulted in different ARs and ultimately resulted
         in different tariffs.

67. FFS is required to use the elements of the AR calculated by NERSA and/or the actual
    costs incurred as a base when submitting future tariff applications.

Conclusion
68. From a conspectus of the facts and evidence, it is appropriate and in compliance with
    the requirements of the National Energy Regulator Act, 2004 (Act No. 40 of 2004) to
    make the decision set out above. The decision finds a reasonable balance between the
    interests of customers on the one hand and the interests of investors on the other.

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