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Vol. 5, No. 9 September 2024 http://jist.publikasiindonesia.id/
Jurnal Indonesia Sosial Teknologi, Vol. 5, No. 9, September 2024 3801
Potential for Decarbonization of the Energy Sector of Nickel
Mining Company PT XYZ with the Implementation of a
Simple Energy Management System
M. Eka Putra Abdillah
1*
, Rinaldy Dalimi
2
Universitas Indonesia, Indonesia
Email:
[email protected]
*Correspondence
ABSTRACT
Keywords: energy
management system; ISO
50001; decarbonization;
nickel; mining.
This study aims to evaluate the potential implementation of
the ISO 50001 Energy Management System (EnMS) at PT
XYZ to achieve the decarbonization target. The focus is on
strategic and technical planning, involving the analysis of
internal and external issues to develop energy policies as
well as the formation of energy teams. Technical planning
includes energy performance reviews, energy consumption
analysis, Significant Energy Users (SEUs), Energy
Performance Indicators (EnPI), and operation control plans.
The results of the 2022 review show that energy
consumption is 947.8 thousand GJ with the main SEU in the
Hauling and Mining systems, as well as Hauler and
Excavator tools that consume more than 80% of Biosolar
B30. EnPI level 1 shows an average energy intensity of 0.08
GJ per WMT, while EnPI level 2 results in a regression of
Y=2.113X + 264924 with a determination of 0.892, making
2022 a baseline. The implementation of ISO 50001 has the
potential to improve energy efficiency and reduce GHG
emissions by up to 30% by 2030, with a target of saving 9.7
million liters of Biodiesel B30. The PDCA approach helps
companies achieve targets by focusing on SEU systems and
tools.
Introduction
Global and national developments related to climate change mitigation have
changed the world paradigm in various sectors. (Hidayattullah, 2021). The Paris
Agreement in 2015 aimed to limit global temperature rise to less than 2°C above pre-
industrial levels. Indonesia's GHG emission reduction target increased from 29% to
31.89% in the ENDC, and with international support from 41% to 43.20% (Margireta &
Khoiriawati, 2022).
According to Indonesia's First Biennial Update Report (BUR), national greenhouse
gas (GHG) emissions were 1,453 GtCO2e in 2012 and increased to 1,845 GtCO2-eq in
2019. Emissions were dominated by LUCF (50.13%) followed by energy (34.49%),
waste (6.52%), and IPPU (3.15%) (Alam & Reza, 2024).
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As part of the sustainable energy transition, Indonesia released Presidential
Regulation Number 55 of 2019 concerning Battery-Based Electric Motorized Vehicles
(KBLBB). The production target for 4-wheel and 2-wheel KBLBB in 2030 is 750,000
and 2,450,000 units, respectively. Research from the International Energy Agency (2022)
estimates that global demand for EV batteries will reach 3.3 TWh per year by 2030,
triggering nickel production growth. The production of 1 kg of class-1 nickel requires 147
MJ of primary energy with a global warming potential (GWP) of 7.64 kg CO2e (Mistry
et al., 2016).
In this context, the biggest challenge is to increase production sustainably. Energy
plays an important role in decarbonization, especially in the industrial sector. Energy Law
No. 30 of 2007 and Government Regulation No. 70 of 2009 regulate the efficient use of
energy and require entities with energy consumption ≥ 6,000 TOE per year to implement
an energy management system. (Dafana et al., 2024).
The ISO 50001 Energy Management System provides a framework for continuous
improvement in energy efficiency and emission reduction. (Gonzalez, 2016). According
to the United Nations Industrial Development Organization, companies that are just
starting in energy management can achieve energy savings of 10%-20% in the first two
years and 25%-30% in the medium term. (Santoso et al., 2023). Industrial energy
efficiency covers about 40% of the potential GHG emission reduction at a cost of less
than 60 Euros per metric tCO2e (McKinsey, 2010). This study aims to develop a simple
implementation plan for PT XYZ's Energy Management System based on the principles
of ISO 50001 as an effort to decarbonize the energy sector and find out how significant
its impact is.
Method
This research uses a case study approach to analyze the potential for
decarbonization in the energy sector at PT XYZ nickel mining company through the
implementation of a simple energy management system. This method consists of several
stages Data Collection, Energy Consumption Analysis, Identification of Energy
Efficiency Opportunities, Implementation of a Simple Energy Management System,
Decarbonization Impact Analysis, Evaluation, and Validation, This method is expected
to provide a comprehensive overview of the decarbonization potential in the energy sector
of PT XYZ and how the implementation of a simple energy management system can
support efforts to reduce carbon emissions in nickel mining operations.
Results and Discussion
Strategic Planning
Organizational context analysis includes both external and internal issues of the
company. The analysis model of internal and external issues according to the
classification carried out by Rouvinen M. in 2020 can be seen in Table 1
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Tabel 1
Isu Eksternal dan Internal Potensial Perusahaan
No.
ISU
EXPLANATION
External
1
Internatio
nal and
National
Legislati
on
National Energy Regulations such as
Government Regulation No. 79 of 2014
concerning National Energy Policy regulate the
reduction of fossil energy and the increase in
renewable energy. The need for compliance to
avoid legal sanctions and a negative reputation.
2
Climate
Change
and
Extreme
Weather
Conditio
ns
Indonesia is vulnerable to climate change that
causes extreme weather such as floods and
landslides that can disrupt mining operations.
Companies need to invest in mitigation and
adaptation strategies.
3
Energy
Costs
Fluctuations in energy prices can increase
production costs; Energy efficiency
implementation is needed to reduce negative
impacts.
4
Objective
s of the
Industrial
Sector
The nickel industry is directed to support
downstream policies, which aim to increase the
added value of mining products. Not meeting
sustainability goals can reduce competitiveness
and trust from stakeholders.
5
Energy
Availabil
ity
The availability of energy sources, especially fuel
oil, greatly affects mining operations because
operational activities are dominated by
mechanical devices that use Biodiesel as an
energy source. Disruption of the external energy
supply can hamper mine operations. Energy
diversification is also needed to minimize the
impact of energy availability.
Internal
6
Continge
ncy Plan
for
Energy
Supply
Disruptio
n
The use of electricity reserves from diesel
generators or solar power plants for critical
functions in mines. An effective emergency plan
can ensure the continuity of critical operations.
7
Previousl
y
Achieved
Standards
The company has achieved the ISO 14001
standard regarding environmental management
systems. The implementation of other system-
based ISO standards is not expected to be a
significant obstacle.
8
Strategy
and
Target
The company's policy includes a commitment to
improve energy efficiency and reduce GHG
emissions as stated in the company's
Sustainability Policy. Clear commitments can
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No.
ISU
EXPLANATION
steer the entire organization towards
sustainability goals.
9
Existing
Technolo
gical
Advance
ments
The latest technologies are used in mines to
improve energy efficiency and reduce
environmental impact. Regular assessments and
upgrades of existing technology can ensure that
the company remains competitive.
10
Energy
Manage
ment
Culture
A company culture that supports energy
efficiency and sustainable practices. A positive
energy management culture can increase
employee participation and encourage the
implementation of EnMS.
11
Sustainab
ility
Consider
ations
The company's commitment to sustainability and
environmental responsibility. This commitment
can improve the company's reputation and attract
investors who care about the environment.
12
Operatio
nal Risk
and
Liability
Consider
ations
Regular evaluations of operational risks and
responsibilities can help identify and mitigate
potential problems before they occur.
13
Existing
Develop
ment
Plans
Projects related to improving energy performance
are being considered. The need for energy
management professionals to ensure effective
responsibilities.
From the results of the analysis of external and internal issues, the existence of the
Company's Energy Policy is needed as a form of commitment to answer the company's
external and internal issues related to energy performance. (Khoerunnisa, 2024). The
Company's Energy Policy at least shows aspects of legality, and commitment, has a clear
scope, and encourages continuous improvement. The following are the concepts of the
Company's Energy Policy that can be applied:
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Figure 1 Energy Policy Concept of PT XYZ
The Company's leadership has the responsibility to ensure that the resources
necessary to operate the EnMS are available, including the necessary human, financial,
and technological resources. The Company does not have an Energy Management Team
or a team specifically responsible for the Company's energy performance. Structurally,
the responsibility for energy is still charged to the operational part of each department.
(Hasanah, 2021).
An Energy Management team can be made up of people from different backgrounds
or departments. (Lestari, 2018). Considering the condition of the company's structure and
operational activities, the proposed energy team structure is in the form of a team headed
by the Energy Manager structurally but containing representative members from each
relevant department who work functionally. The concept of the Energy Team structure
can be seen in Figure 2.
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Figure 2 Concept of Energy Management Team Structure
Current Energy Review
2022 is the baseline year or reference because it is considered the most
representative in the next few years. The Company's energy sources are obtained from
Biodiesel B35 Gasoline RON 92, and LPG. From the calculation of total energy
consumption, the Company's total energy consumption in 2022 reached 947.8 thousand
GJ which was sourced from three types of fuel, namely Biodiesel B30, Gasoline RON
92, and LPG. The Company's operational activities at the site do not depend on PLN
Electricity because the source of electricity comes from a Generator (GENSET) that
consumes Biosolar B30. (Vlaviorine & Widianingsih, 2023).
Based on the energy consumption trend listed in Figure IV.3, shows that energy
consumption increased in line with the Company's production rate. The average energy
intensity in 2022 is 0.08 GJ per wmt of nickel ore, which means that 0.08 GJ is needed to
produce one wmt of Nickel Ore. If we observe that there are three months with the highest
intensity, namely in February, July, and September, this may be caused by inefficient
mining operations.
Figure 2 Energy Consumption and Production Chart in 202
0,00
0,20
0,40
0,60
0,80
1,00
1,20
1,40
1,60
1,80
0
20.000
40.000
60.000
80.000
100.000
120.000
140.000
Jan 22 Feb 22Mar 22Apr 22 May
22
Jun 22 Jul 22 Aug 22Sep 22 Oct 22Nov 22Dec 22
Produksi Nickel Ore (Juta WMT)
Konsumsi Energi (GJ)
Trend Konsumsi Energi dan Produksi Tahun 2022
Biosolar B30 Gasoline LPG Nickel Ore
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Table 2 Energy Consumption Table in 2022
Significant Energy Users (SEUs)
To facilitate the analysis of the SEU, a visualization of energy flow was made which
has four levels, namely Energy Source, Fuel Type, System, and Tool as shown in Figure
4 below.
Figure 3 Sankey Diagram Energy Flow in 2022
At the Energy Source level, it consists of two types, namely Fuel or liquid fuel and
Gas. At the level of Fuel Type, it consists of Biodiesel and Gasoline for Fuel and LPG for
Gas. In terms of systems that consume Biosolar B3, it is categorized into four categories,
namely: Hauling, Mining, Employee Transport, General Services, and Mine Support. For
Systems that consume Gasoline, there is Outside Transport, which is off-site
transportation activities with vehicles such as motorcycles and passenger cars. As for the
Gasoline
(RON 92)
Liter Liter Kg GJ GJ GJ GJ WMT GJ/WMT
1,147,511 826 100 33,829 28 5 33,861 374,992 0.09
1,561,098 751 250 46,021 25 12 46,058 416,248 0.11
1,873,917 913 0 55,243 30 0 55,274 750,091 0.07
2,054,473 1,398 50 60,566 47 2 60,615 685,936 0.09
2,444,312 1,003 350 72,058 33 16 72,108 869,551 0.08
2,497,531 1,293 150 73,627 43 7 73,677 819,329 0.09
2,623,761 1,685 0 77,348 56 0 77,405 806,558 0.10
3,082,176 1,835 200 90,863 61 9 90,933 1,040,367 0.09
3,295,801 1,619 0 97,160 54 0 97,214 1,019,231 0.10
3,729,343 1,805 100 109,941 60 5 110,006 1,520,723 0.07
3,915,691 1,372 500 115,435 46 23 115,503 1,695,955 0.07
3,905,321 1,524 250 115,129 51 12 115,191 1,233,030 0.09
Energy Consumption
Energy Intensity
Month
Fuel Consumption
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system that consumes LPG, it is a cooking activity in the canteen. The most dominant
energy source consumed by the Company is Fuel (99.99%) with the distribution of
Biosolar B30 (99.93%) and Gasoline (0.06%), so for the analysis of SEUs, we can focus
on the consumption of Biosolar B30 (Suryokusumo, 2019).
Figure 4 Diagram of B30 Biodiesel Consumption Pareto Based on Equipment
The Pareto chart in Figure IV.5 shows the consumption of Biosolar B30 in 2022 by
type of appliance. From the graph, it can be seen that the device that consumes the most
Biosolar B30 is the "Hauler" with a consumption of nearly 16 million liters, followed by
the "Excavator" which consumes around 10 million liters. The vertical red line indicates
the point where 80% of the total cumulative consumption is reached. SEUs can be based
on the user's system or equipment, in which case the two are not much different.
Energy Performance Indicator (EnPI) and Energy Baseline (EnB)
The EnPI level 1 value, i.e. energy intensity, is calculated by dividing the total
energy consumed by the total nickel ore production. The results showed that the highest
energy intensity occurred in February with 0.11 GJ/WMT, while the lowest intensity
occurred in March with 0.67 GJ/WMT. The average EnPI level 1 value for 2022 is 0.08
GJ/WMT, which indicates energy performance varies throughout the year. EnPI level 2
focuses on Hauling and Mining systems, which include total fuel consumption and total
nickel ore production. The data in Table IV.4 shows that the highest total fuel
consumption occurred in October with 2,860,401.51 liters and the lowest in January with
784,657.10 liters.
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Table 3 Total Nickel Ore and Total Biodiesel B30 Fuel Data
Figure 5 Level 2 EnPI Regression Model
The regression model used for EnPI level 2 according to Figure IV.6 is Y = 2.113x
+ 264924, where Y is the total consumption of Biodiesel B30 (liters), and X is the total
nickel ore production (WMT). From the regression table, it can be seen that this model
has a determination coefficient (R Square) of 0.89216756, which means that 89.22% of
the variability in fuel consumption can be explained by the variability in total nickel ore.
Tabel 4 Statistik Regresi EnPI Level 2
Regression Statistics
Multiple R
0.939253753
R Square
0.882197612
Adjusted R Square
0.870417374
Standard Error
322287.7043
Observations
12
X Y
Total Ore (WMT) Total Fuel (liter)
Jan 22 374,993.00 784,567.00
Feb 22 416,249.00 1,176,339.00
Mar 22 750,091.00 1,475,375.00
Apr 22 685,936.00 1,570,528.00
May 22 869,552.00 1,936,532.00
Jun 22 819,329.00 2,104,254.00
Jul 22 806,558.00 2,219,083.00
Aug 22 1,040,367.00 2,685,421.00
Sep 22 1,019,231.00 2,860,451.00
Oct 22 1,520,723.00 3,230,224.00
Nov 22 1,695,956.00 3,486,028.00
Dec 22 1,233,030.00 3,383,412.00
TOTAL 11,232,015.00 26,912,214.00
Tahun
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Tabel 5 Analisis Varians (ANOVA) EnPI Level 2
ANOVA
df
SS
MS
F
Significance
F
Regression
1
7.77856E+12
7.77856E+12
74.88792291
5.8798E-06
Residual
10
1.03869E+12
1.03869E+11
Total
11
8.81725E+12
Table 6 EnPI Regression Coefficient Level 2
Coefficients
Standard Error
t Stat
P-value
Intercept
264924.3921
246754.198
1.073636819
0.308209359
X Variable
1
2.112988746
0.244169431
8.653780845
5.8798E-06
Energy Conservation Opportunity List (ECO list), Targets and Action Plans
To determine the ECO List or energy conservation opportunities, a comprehensive
energy audit is needed, but based on the results of the regression analysis on EnPI level 2
obtained previously, it shows a strong relationship between nickel ore production and fuel
consumption, supporting the importance of good management in mining operations to
achieve higher energy efficiency, meaning that the more productive the hauling and
mining activities, the more efficient the energy consumed.
In a study conducted by Oskouei and Awuah-Offei in 2015, it was shown that the
chance of fuel consumption efficiency from good operator practices in carrying out
loading activities was 1.4 -15.7%. In addition to the operational aspect of operators,
payload optimization of 19% can increase fuel consumption efficiency by 7% (Odhams,
2010).
Tabel 7 ECO List dan Rencana Aksi
It
ECO
Method
PIC
%
Efficiency
Saving
(Liter)
Measurement
1
Loading
optimization
•
Study of
efficient
loading
techniques
•
Operator
training
•
Dept
Operation
•
Dept HR
15.7%
4.2
Million
Liters
Flow meter
and time cycle
2
Optimal
payload
management
•
Optimize
payload
distribution
•
Monitor and
control truck
load weight in
real-time
•
Dept
Operation
7%
1.8
Million
litres
Flow meters
and weighing
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If we adopt these two initiatives, what is stated in Table IV.8, the total fuel savings
can reach 6.1 million liters per year with EnPI conditions and nickel production according
to the 2022 baseline.
Operations Control and Review
The operation control plan is prioritized on the SEU, both in terms of systems and
tool units. For the system, the main focus is on hauling and mining activities, which
include the implementation of management systems, periodic maintenance, and training
programs to improve energy efficiency. In terms of tool units, Haulers and Excavators
are top priorities with optimizing equipment usage through real-time monitoring,
technology upgrades for energy monitoring, and periodic energy audits to identify areas
for improvement.
Strategic Analysis
In strategic planning, two aspects are analyzed, namely the organizational context
aspect and the leadership aspect. Several issues and external and internal conditions of
the Company are reviewed as a basis for formulating energy policies and energy teams.
Table 9 Linkage of Energy Policy to Relevant Issues
No
.
Energy Policy Points
Issues Answered
1
Achieve and maintain applicable
legal requirements and meet the
needs and expectations of
stakeholders related to energy
efficiency, energy use, energy
consumption, and the
implementation of new and
renewable energy
1. 1. International and
National Legislation
2. Objectives of the
Industrial Sector
2
Setting medium- to short-term
energy performance targets for
each Company along with
guidelines to achieve them, taking
into account significant energy
consumption, opportunities to
improve energy performance, and
opportunities for the
implementation of new and
renewable energy
1. 1. Strategy and Targets,
2. 2. Energy Availability,
3. Energy Costs
3
Adopt an Energy Management
System developed and
implemented by ISO 50001
Standard
1. 1. Previously Achieved
Standards,
2. Operational Risk and
Financial Considerations,
1. 3. Energy Management
Culture
4. Existing Development
Plans
4
Prioritizing efforts to improve
energy efficiency from significant
energy consumption activities.
1. 1. Operational Efficiency,
2. 2. Existing Technological
Advancements,
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No
.
Energy Policy Points
Issues Answered
3. Energy Management
Culture
5
Reduce the consumption of fossil
energy sources by developing the
use of new and renewable energy.
1. 1. Energy Availability,
2. Climate Change and
Extreme Weather
Conditions,
3. 2. Sustainability 3.
Considerations
4. Contingency plan for
energy potential disruption
6
Encourage and facilitate activities
and efforts aimed at improving
energy performance, energy
conservation, and innovation.
1. 1. Strategy and Target
2. 2. Existing Technological
Advancements
3. 3. Energy Management
Culture,
4. 4. Sustainability
5.Considerations
6. Existing Development
Plans
7
Consider efficiency and type of
energy source as factors in
product development, process,
and facility design, and the
procurement of goods and
services.
1. Operational Efficiency,
2. Existing Technological
Advancements,
3. Energy Costs,
4. Sustainability
Considerations
Existing Development
Plans
8
Conduct energy audits within a
maximum period of 3 years and
improve energy performance
achievement standards with
similar industry comparisons
1. 1. Previously Achieved
Standards,
2. 2. Operational Efficiency,
3. 3. Operational Risk and
Financial Considerations,
4. Energy Costs
9
Conduct regular public reporting
on energy performance to provide
transparency on progress towards
our goals.
1. 1. Energy Management
Culture,
2. 2. Operational Risk and
Financial Considerations,
3. 3. Sustainability 4.
Considerations,
5. Stakeholder Interests
Table 9 shows the relationship between the issues that have been identified and the
points in the Company's energy policy, to support the plan, an energy team is needed that
has responsibility in the realm of the company's energy management system. This shows
that the company's energy policy as one of the strategic aspects in the energy management
system can respond to PT XYZ's decarbonization target, especially in the energy sector
because its implementation can improve energy performance which leads to a reduction
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in energy intensity, as we know that the energy sector is the sector with the largest
contributor to emissions in the Company.
Technical Analysis
ISO 50001 technical planning at PT XYZ can begin with an energy review as the
basis for analyzing Significant Energy Users (SEU) and Energy Performance Indicators
(EnPI). With EnPI, companies can monitor and evaluate energy use efficiency across
various systems and equipment. In 2022, PT XYZ's total energy consumption reached
947.8 thousand GJ, with an average energy intensity of 0.08 GJ per mt of nickel ore. ISO
50001 assists PT XYZ in identifying energy consumption patterns and evaluating energy
performance on an ongoing basis.
In the application of ISO 50001, PT XYZ conducts an analysis of SEUs which
include Hauling and Mining systems, as well as equipment such as Haulers and
Excavators. Based on Pareto's analysis, Hauler and Excavator account for more than 80%
of Biosolar B30 consumption. By focusing on SEUs, PT XYZ was able to identify areas
with great potential for energy savings and develop specific efficiency strategies.
ISO 50001 requires the development of EnPI and Energy Baseline (EnB) to
measure energy performance and establish energy baselines. PT XYZ developed EnPI
level 1 to measure energy intensity at the enterprise scale and EnPI level 2 for Hauling
and Mining systems. The results of the EnPI level 2 regression show that every 1 WMT
increase in nickel ore production will increase fuel consumption by 2,113 liters, with a
determination coefficient of 0.89216756. This suggests that nickel ore production has a
significant influence on fuel consumption, allowing management to take more specific
actions to improve energy efficiency.
The implementation of ISO 50001 at PT XYZ involves energy review, SEU
analysis, and comprehensive development of EnPI and EnB. With a structured energy
management system, PT XYZ can identify energy consumption patterns, evaluate energy
performance, and develop more targeted efficiency strategies. The implementation of ISO
50001 not only helps in reducing energy consumption and carbon emissions but also
improves the company's operational performance and reputation in the eyes of
stakeholders.
With a clear focus on SEUs and accurate EnPI development, PT XYZ can optimize
energy use and achieve the energy sector decarbonization target more effectively. This
sustainable energy management system is an important foundation for the company to
achieve higher energy efficiency and support long-term sustainability goals.
The Effect of EnMS Implementation on Decarbonization Efforts
PT XYZ has a medium and long-term decarbonization target, namely reaching 30%
decarbonization in 2030 with a baseline of 2022. However, the Company has not
determined the proportion of decarbonization targets for each Scope and sector. PT XYZ's
total Scope-1 GHG emissions in the mining sector in 2022 are 82996.47 tons of CO2e as
stated in Table 10.
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Table 10 Emissions of PT XYZ in 2022
Emission Category
Emisi GRK (tCO2e)
Stationary and Mobile
Combustion
54,500.93
Industrial Process
-
Fugitive
2,683.89
Land Use Transfer
25,811.66
Scope 1 - Total
82,996.47
Figure 7 Graph of GHG Emission Distribution of PT XYZ
In Figure 7, it can be seen that the energy sector (stationary and mobile combustion
emission categories) contributes 65.7%, so the implementation of energy management
systems can contribute significantly. If we assume that the Company's decarbonization
targets are distributed proportionally, then by 2030 the total emissions that must be
reduced in the energy sector are 16350.28 tCO2e or equivalent to 284353.46 GJ. If we
focus on Biodiesel B30 consumption which contributes 99.93% of the Company's total
energy consumption in 2022, then energy savings of 284353.46 GJ are equivalent to 9.7
million litres throughout 2030. This number looks very large but is very possible, going
back to the previous discussion of the preparation of the ECO List with two improvements
related to the optimization of loading and optimal payload management of hauler and
excavator equipment can contribute to savings of around 6 million liters of Biodiesel B30.
The implementation of ISO 50001 in the form of a system can make this easier because,
with a period from 2024 to 2030, these energy-saving initiatives or programs can be
carried out gradually and systematically.
Conclusion
Strategic analysis of the organizational context and leadership has been carried out
to formulate energy policies and form responsible energy teams. The 2022 technical
review showed a total energy consumption of 947.8 million GJ at an intensity of 84,388
GJ per WMT of nickel ore, and the SEUs analysis identified the Hauling and Mining
systems as the largest energy users. The EnPI level 2 regression model shows that every
65,7%
3,2%
31,1%
Distribusi Emisi GRK 2022
Pembakaran Stasioner dan Bergerak Proses Industri Fugitive Alih Guna Lahan
Implementasi Penerimaan Beasiswa Kartu Indonesia Pintar (KIP) dengan Menggunakan
Metode K-NN (Studi Kasus: Politeknik Siber Cerdika International)
Jurnal Indonesia Sosial Teknologi, Vol. 5, No. 9, September 2024 3815
1 WMT increase in nickel ore production increases fuel consumption by 2,113 liters. The
implementation of ISO 50001 not only improves energy efficiency but also contributes
significantly to decarbonization, with energy sector emissions accounting for 68% of the
company's total GHG emissions. The phased energy efficiency program is expected to
help achieve the 30% decarbonization target by 2030, with the PDCA approach making
it easier to achieve the target regularly.
Abi Surya Wijaya
1*
, Lena Magdalena
2
, Chairun Nas
3
Jurnal Indonesia Sosial Teknologi, Vol. 5, No. 9, September 2024 3816
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