Dangote Cement Plc Annual Report 2021
Environment continued
Energy consumption continued
Despite the increase in total energy consumption, thermal
energy consumed per tonne reduced to 849.18 Kcal/kg in 2021
compared to 894.13 cal/kg in 2020. The energy sources used
across DCP's operations come from a very diverse mix of fuels
such as Petroleum Coke/Coal mix, Coal, Natural Gas, Diesel, Petrol,
LPFO, Electricity and Alternative Fuels (e.g., waste oil, tyres chips,
carbon black, ultra-fine coal, biomass, etc.). In 2021, the use of
alternative fuel sources increased by 69% accounting for 1.51%
of the total fuel mix compared to 0.89% in 2020.
Following this, DCP is working towards a gradual transition aimed
at reducing energy consumption in operations while increasing
the use of alternative fuel sources and reducing dependence on
Petroleum Coke/Coal mix and Coal.
Year
2019
2020
2021
Total energy
consumption
(GJ)
Percentage
increase (+)
or decrease (-)
-1.56%
15.68%
9.55%
79,976,174
92,515,735
101,355,380
2021 total energy consumption (GJ)
=101,355,380
4. Senegal
|11,12
1. Nigeria Obajana
32.64%
2. Nigeria-lbese
30.91%
9.10
8
3. Tanzania
7.14%
6
6.04%
5
5. Ethiopia
5.81%
4
6. Zambia
3
5.66%
7. South Africa
5.30%
8. Nigeria - Gboko
4.96%
9. Congo
1.18%
10. Ghana.
0.06%
11. Sierra Leone
0.01%
12. Cameroon
0.00%
Efforts on emissions
It is common knowledge that the cement manufacturing industry
is one of the hard-to-abate industries due to the amount of energy
utilised and the carbon dioxide emitted. Dangote cement plants
are however designed using cutting-edge technology to achieve
product quality and energy efficiency.
Dangote Cement recognised the effects of greenhouse gas
emissions on the ecosystem. The table below shows the direct
CO2 emission per tonne increased slightly in 2021 to 660.57
kg CO2/ tonne from 648.38kg CO2/tonne in 2020. As reported
previously the Gboko Plant in Nigeria which was previously not
operational resumed production in 2021 contributed to increased
production output and invariably CO2 emissions (Scope 1).
Total direct
CO₂ emission/
Percentage
increase (+)
Percentage based on fuel sources - 2021 total
energy consumption (GJ)
16,7
345
1. Natural Gas
2. Coal
51.3%
41.0%
3. Diesel
3.7%
4. Electricity
1.9%
5. Alternative fuel
1.5%
1
6. Mix
0.6%
7. Petrol
0.0%
0
2
Year
2020
2021
tonne
or decrease (-)
648.38
660.57
1.9%
Managing our water
Cement production is generally regarded as a "dry" process
because a relatively low amount of water per unit of the finished
product is utilised. However, we know that water is fundamentally
a vital resource with a significant impact on lives and livelihood.
For this reason, Dangote adopts sustainable water resource
management in our operations. Total water consumption in
2021 for all operational locations is reported as 8,131,204 cubic
metres (m³); 19.8% higher than the consumption of 6,789,816
cubic metres (m³) in 2020. Water consumed per tonne of cement
increased slightly by 3.9% to 285m³/tonne in 2021 compared to
274m³/tonne in 2020. Of the total water consumed, ground water,
dam and quarry water sources account for the largest percentage
by sources at 47.4%, 22.92% and 21.73% respectively while other
water sources such as Surface water, Rainwater and Municipal
water accounts for the remaining 7.97% cumulatively.
38
Dangote Cement Plc Annual Report 2021
Biomass used as alternative fuelView entire presentation