Namibia PDNA 2009 - GFDRR

Table 47: Damages incurred due to 2009 flood and
storms (Omusati, Ohangwena, Oshana and Oshikoto)
Table 49: Indication of damages incurred due to 2009
flood and storms, Caprivi Region
Type of Equipment
Replacement Cost
(N$ million)
Type of Equipment
Replacement Cost
(N$ million)
Transformers 1.5
Kiosks 0.2
Poles 11 m 0.1
Surge Arrestors 0.1
Cables Underground 3.6
Switchgear 0.2
Transformers 0.1
Poles 11 m 0.02
Surge Arrestors 0.02
Distribution Line 0.05
Early failure provision 0.05
TOTAL 0.2
Engine overhauls 0.2
Early failure provision 0.5
TOTAL 8,205,560
This damage assessment covers infrastructure for both the
NORED and OPE. The towns of Oshakati and Ondangwa
both have a high percentage of underground networks. This
resulted in extensive damage to cables and ground mounted
equipment such as kiosks and switchgear. Damage in Omusati,
Ohangwena, Oshana and Oshikoto is also higher than in the
other regions due to the destruction of three large transformers
by lightning.
Damage to utility vehicles as a result of water has been included
in the assessment. In addition provisions have been made for
covering the costs of replacing equipment which is yet to fail
due to partial damage of insulation.
The following tables contain details of the damage to electricity
infrastructure in the Kavango and Caprivi Regions.
Table 48: Indication of damages incurred due to 2009
flood and storms, Kavango Region
Type of Equipment
Replacement Cost
(N$ million)
Transformers 0.1
Poles 11 m 0.04
Surge Arrestors 0.01
Early failure provision 0.05
TOTAL 0.2
The damages incurred in these Regions are considerably lower
than in the case of Omusati, Ohangwena, Oshana and Oshikoto.
Almost no damage to electrical equipment occurred as a result
of flooding due to the reticulation network being overhead.
Lightning strikes were the main cause of failure of small
transformers and destruction of wooden poles. The substation
at Ngoma was surrounded by water and was inaccessible. The
substation remained undamaged.
It should be noted that three villages in Caprivi with electricity
infrastructure were submerged by the flood. These villages
have not been connected to the NORED network because
of lack of capacity and hence no data is available concerning
damage to this infrastructure.
Total damages incurred by NORED and OPE amounts to
N$8,646,666.
Losses in NORED and OPE areas of supply: Losses were
calculated on the basis of revenue lost by the distribution
utilities as a result of the disaster. The losses are calculated
for the three areas of (i) Omusati, Ohangwena, Oshana and
Oshikoto; (ii) Kavango; and (iii) Caprivi. The calculation is
based on the difference in energy sold in February 2009 and
the average of energy sold during the previous 12 months.
The calculation has been made for each feeder metered by
Nampower supplying the affected areas. Sales of electricity
rebounded extremely rapidly and in most areas March 2009
sales compared favourably with the average of the previous
12 months. This was due to the restoration of supply to most
areas in a short period of time.
The following table indicates losses incurred by NORED and
OPE in Omusati, Ohangwena, Oshana and Oshikoto.
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