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CHAPTER 10:Assets

10.2

INTANGIBLE ASSETS

10.2.1 ACCOUNTING POLICIES RELATING TO INTANGIBLE ASSETS

Patents, licences and customer contracts

Patents, licences and customer contracts are Intangible assets with a finite useful life and are carried at cost less accumulated amortisation and accumulated impairment losses.

Amortisation is charged to profit or loss on a straight-line basis over the estimated useful lives of the finite useful life assets from the date it is available for use. The amortisation method, useful lives and residual values are reviewed at each reporting date and adjusted where appropriate. The estimated useful lives of intangible assets with a finite useful life are:

 
2020 2019
Customer contracts 16.3 and
  16.4 years  
Patents and licences 1 to 25 years 1 to 25 years

Impairment testing is undertaken when circumstances indicate that the carrying amount may not be recoverable. Refer note 8.1.3.

Goodwill

Goodwill that arises on the acquisition of subsidiaries is presented with intangible assets. Refer note 8.1.1 for the policy on the measurement of goodwill at initial recognition.

Goodwill is carried at cost less accumulated impairment losses and is not subject to amortisation, but rather is tested annually for impairment or more frequently if events or changes in circumstances indicate a potential impairment.

For purposes of impairment testing, goodwill acquired in a business combination is allocated to each CGU, or group of CGUs, that is expected to benefit from the synergies of the business combination. Each unit or group of units to which the goodwill is allocated represents the lowest level within the entity at which goodwill is monitored for internal management purposes. Goodwill is monitored at the operating segment level.

The carrying value of the CGU containing goodwill is compared to its recoverable amount, which is the higher of value in use or the fair value less costs of disposal. Any impairment is recognised immediately as an expense and is not subsequently reversed.

10.2.2 SIGNIFICANT JUDGEMENTS AND ASSUMPTIONS MADE BY MANAGEMENT IN APPLYING THE RELATED ACCOUNTING POLICIES

Impairment testing of goodwill

In allocating goodwill, the Cennergi group of companies has been identified as a single CGU to which goodwill of R521 million has been allocated.

The Cennergi CGU was assessed for impairment at 31 December 2020 as a result of the requirement to test goodwill annually for impairment. There were no other indicators of impairment for the Cennergi CGU during the reporting period. No impairment charge was required as the recoverable amount, determined using fair value less costs of disposal, exceeded the carrying amount on 31 December 2020.

The recoverable amount was derived using a DCF model which is a Level 3 valuation technique in terms of the fair value hierarchy. The valuation has been performed in South African rand using the following information:

  • Approved financial budgets covering a five-year period
  • Project financing models post the five-year budget period up to the end of the contractual life of the power purchase agreements
  • Extrapolated results for a further post-contractual 10-year period, representing the expected additional economic life for which the wind farms are expected to operate.

The key assumptions made by management (expressed in nominal terms) and management's approach to determining these key assumptions is summarised as follows:

Key assumptions Management's approach used to determining the values 2020
Discount rate: Determined applying a risk-free rate of return adjusted for risks inherent to the Cennergi CGU 13.80%
Life of Cennergi CGU: The wind farms are expected to have a further operating capability of an additional ten-years post the existing power purchase agreements in accordance with technical engineering assessments. In addition, given the expected growth in demand for energy in South Africa, coupled with limited supply of energy, and in particular the worldwide drive towards energy supply to be from renewable sources, it is considered that there is a market with value post the existing power purchase agreements. 26.4 years
Gigawatt generation: The Gigawatt generation assumption has been determined based on past experience, as well as environmental assessments of wind conditions and capability of the turbines. 664 GWh
Tariff escalation range: The tariff is based on CPI escalation during the power purchase agreement term which has been determined based on past experience and from economist projected outlooks of CPI. For the post 10-year period the tariff has been set at a reduced constant expected CPI. 4.5% to 5.7%

Management has considered and assessed reasonably possible changes to the key assumptions and has not identified any instances that could cause the carrying amount of the Cennergi CGU to exceed its recoverable amount.

10.2.3 INTANGIBLE ASSETS COMPOSITION AND ANALYSIS

      Group 
At 31 December 2020  Note  Goodwill 
Rm
 
Customer 
contracts 
Rm
 
Patents and 
licenses 
Rm
 
Total 
Rm
 
Gross carrying amount 
At beginning of the year  1 524  43  1 567 
Additions 
Acquisition of subsidiaries  8.3  521  2 685  3 206 
Exchange differences 
Reclassification to non-current assets held-for-sale  8.4  (1 524) (7) (1 531)
At end of the year  521  2 685  39  3 245 
Accumulated amortisation 
At beginning of the year  (27) (27)
Charges for the year  6.1.3  (123) (5) (128)
Reclassification to non-current assets held-for-sale  8.4 
At end of the year  (123) (27) (150)
Accumulated impairment 
At beginning of the year  (1 524) (1 524)
Reclassification to non-current assets held-for-sale  8.4  1 524  1 524 
At end of the year 
Net carrying amount at end of the year  521  2 562  12  3 095 
At 31 December 2019 
Gross carrying amount 
At beginning of the year  1 524  38  1 562 
Additions 
At end of the year  1 524  43  1 567 
Accumulated amortisation 
At beginning of the year  (23) (23)
Charges for the year  6.1.3  (4) (4)
At end of the year  (27) (27)
Accumulated impairment 
At beginning of the year  (1 524) (1 524)
At end of the year  (1 524) (1 524)
Net carrying amount at end of the year  16  16 

      Company 
At 31 December 2020  Note  Patents  and 
licenses 
Rm
 
Total 
Rm
 
Gross carrying amount 
At beginning of the year  22  22 
At end of the year  22  22 
Accumulated amortisation 
At beginning of the year  (14) (14)
Charges for the year  6.1.3  (2) (2)
At end of the year  (16) (16)
Net carrying amount at end of the year 
At 31 December 2019 
Gross carrying amount 
At beginning of the year  21  21 
Additions 
At end of the year  22  22 
Accumulated amortisation 
At beginning of the year  (12) (12)
Charges for the year  6.1.3  (2) (2)
At end of the year  (14) (14)
Net carrying amount at end of the year