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Energy

Mining operations are energy intensive. The energy Paladin uses for its operations is principally derived from fuel-fired electricity sources. The fuel used by vehicles at both sites is predominantly diesel, with some vehicles using petrol. In addition, emulsion is used as the explosive for blasting at both sites.

Electricity at LHM is purchased from the Namibian power grid and, if necessary, supplemented with power generated at the on-site diesel-fuelled power plant. At LHM 69,368,266 kWh of electricity was purchased during the reporting period, which was slightly more than the 66,701,443 kWh purchased during the previous reporting period. Heavy fuel oil (HFO) is also used at LHM to heat the boilers. The total energy usage from indirect and direct sources (heating, vehicle fuel, power generation) at LHM is calculated as approximately 1,385 TJ which equates to 0.35 GJ per tonne of ore processed which was a slight decrease from 0.37 GJ per tonne last reporting period.

 

 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 
At KM, energy is generated using a diesel-fuelled power plant. The total energy consumption (vehicle fuel, power generation) at KM for the reporting period was estimated at 70 TJ for the water treatment plant and care and maintenance requirements.

Energy consumption and the volume of the fuels used at each site are shown in Tables 8 and 9, respectively.

 

Table 8. Energy Consumption (TJ)

Energy Consumption (TJ)

LHM

KM

  2015/2016

2014/2015

2015/2016

2014/2015

Total Direct Energy Consumption[15]

Renewable

N/A 

N/A

N/A

N/A

Non-renewable

1,135

1,006 

70

88 

Total Indirect Energy Consumption[16]

Renewable /
Non-renewable

250

240

N/A

N/A

Total Energy Consumption

1,385

1,246

70 

88 

 

 

 

 

 

 

 

 

 

 

 

 

Table 9: Fuel Usage (L)

Fuel Usage (L)

LHM

KM

2015/2016 

2014/2015

2015/2016

2014/2015

Diesel - Power Generation (L)

15,579

7,488

1,680,281

2,074,509

Diesel - Heat Generation (L)

157,184

49,264

N/A

N/A

Diesel - Borefield Generator (L)

155,954

98,762

N/A

N/A

Automotive Diesel (L)

13,249,695

11,666,364

230,530

336,327

Automotive Petrol (L)

21,283

17,432

0

0

Heavy Fuel Oil (L)

16,812,802

15,101,193

N/A

N/A

Emulsion (blasting) (t)

8,070

6,476

0

0

 

 

 


[15] The conversion factor used for each US gallon consumed is 0.138GJ for diesel, 0.144GJ for HFO, and 0.125 for petrol. Sourced from https://www.globalreporting.org/resourcelibrary/G3.1-Environment-Indicator-Protocols.pdf.
[16] Purchased from the Namibian electricity grid which currently does not provide a breakdown of renewable compared to non-renewable energy. A conversion factor of 0.0036GJ per kWh has been applied.

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