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Carbon emissions have become an important issue that directly impacts the environment and daily life. Understanding how to calculate it lets you see how much your daily activities contribute to climate change.
This article explains how to calculate carbon emissions simply, with calculation examples. Read the following information until the end.
Carbon Emission Data in Indonesia
According to Worldometer data, Indonesia produces a considerable amount of greenhouse gas (GHG) emissions, with total fossil CO₂ emissions reaching around 692 million tons in 2022, an increase of approximately 13.14% compared to the previous year. This figure indicates that Indonesia’s contribution to global emissions is about 1.8% of total world emissions.
Meanwhile, the national emissions inventory report from the Ministry of Environment and Forestry of the Republic of Indonesia (KLHK) shows that the energy, transportation, and industrial sectors, as well as land-use change and forestry, are the main contributors to Indonesia’s carbon emissions. This confirms that daily activities, such as electricity and fuel usage, also contribute to the rise in emissions.
How to Calculate Carbon Emissions
Before diving deeper into the discussion, it is important to understand that calculating carbon emissions helps you understand the impact your activities have on the environment. Accurate calculations allow carbon emissions to be measured precisely and serve as the basis for effective reduction steps.
So, how do you calculate your carbon footprint and emissions for personal or business purposes? Here are the steps and formulas you can apply:
How to Calculate Personal Carbon Emissions and the Formula
To understand the impact of your daily activities on the environment, know how to calculate your personal carbon emissions and the formula. Here is the explanation:
Record Daily Activities
Start by recording activities that generate carbon emissions, such as home electricity use, vehicle fuel consumption, LPG use, and daily travel by public or private transportation.
Read also: Net-Zero Emissions: The Concept and How to Achieve It
Collect Consumption Data
Gather usage data, such as monthly kWh of electricity, liters of fuel, or vehicle mileage. This data serves as the primary basis for the calculation process.
Determine Emission Factors
Use emission factors according to the energy source. For example, electricity and fuel have different emission factor values. These factors are usually available on official government data or from environmental agencies.
Use the Calculation Formula
The basic formula for calculating personal carbon emissions is:
Carbon Emissions = Activity Data × Emission Factor
Example: If your household electricity consumption is 200 kWh per month and the electricity emission factor is 0.85 kg CO₂/kWh, then: 200 × 0.85 = 170 kg CO₂ per month.
Calculate Total Emissions
Add up all the results from each activity to get your total personal carbon emissions over a specific period, such as monthly or yearly.
Besides calculating manually, you can also use an online carbon footprint calculator or a dedicated app that integrates these parameters more accurately.
How to Calculate a Company’s Carbon Emissions
This section explains how to calculate a company’s carbon emissions to determine total emissions from business operations and develop strategies to reduce them. Here is the explanation:
Identify Emission Sources
Identify all sources of emissions from the company’s operational activities, including electricity use, fuel for operational vehicles, production machinery, logistics, and employee business travel.
Group by Emission Scope
Company emissions are usually divided into three categories:
- Scope 1: Direct emissions from company activities (vehicle fuel, generators).
- Scope 2: Indirect emissions from electricity consumption.
- Scope 3: Other indirect emissions, such as product distribution and business travel.
Collect Activity Data
Record energy consumption and operational activity data, for example, the number of kWh of electricity, liters of fuel, or the distance of goods delivery over a certain period.
Read also: Net-Zero Emissions: The Concept and How to Achieve It
Use the Calculation Formula
The formula for calculating a company’s carbon emissions can vary by business sector and type of activity, as each sector has different emission sources and factors.
In general, the calculation principle still refers to the relationship between operational activities and emission factors, then adjusted to the characteristics of the sector, such as forestry, fossil energy, or renewable energy.
Carbon Emission Calculation Formula for the Forestry Sector
In the forestry sector, carbon emissions typically result from deforestation, land-use change, and forest degradation. The calculation focuses on the amount of biomass lost and its carbon content. The following is a commonly used formula to calculate it:
Carbon Emissions = Affected Area × Emissions Per Hectare
Example of an emission calculation simulation due to deforestation:
A company clears 10 hectares of forest, generating an average of about 150 tons of CO₂/ha during land clearing.
So, the calculation is: 10 ha × 150 tons CO₂/ha = 1,500 tons CO₂.
This means that the activity releases approximately 1,500 tons of CO₂ into the atmosphere.
Carbon Emission Calculation Formula for Fossil and Renewable Energy Sectors
The calculations in the energy sector depend on the type of energy source used. Although the basic principle is the same, which is multiplying consumption data by the emission factor, the emission factor value is different for each energy source.
Fossil Energy Carbon Emission Formula
Fossil fuels, such as coal, diesel, gasoline, and natural gas, produce carbon emissions directly from combustion. To calculate the emissions, you can use the following formula:
Formula: Carbon Emissions = Energy Consumption × Emission Factor
Simulation example: A company uses 2,000 liters of diesel per month. If the diesel emission factor is 2.68 kg CO₂/liter.
Then, the calculation is: 2,000 L × 2.68 kg CO₂/L = 5,360 kg CO₂ or 5.36 tons of CO₂ per month.
Renewable Energy Carbon Emission Formula
Renewable energy sources, such as solar and wind power, have low operational emissions. However, emissions can still arise from the use of backup electricity or supporting systems. In this case, the calculation of the resulting carbon emissions formula is:
Formula: Carbon Emissions = Supporting Electricity Consumption × Electricity Emission Factor
Simulation example: If a renewable energy facility still uses grid electricity of 800 kWh per month, with an electricity emission factor of 0.85 kg CO₂/kWh.
Then, the calculation is: 800 kWh × 0.85 kg CO₂/kWh = 680 kg CO₂ per month.
Calculate the Total and Conduct Evaluation
In the final stage, you can sum all emissions from each source to obtain the company’s total carbon emissions. The results of this calculation can serve as a basis for developing energy-efficiency strategies and emission-reduction programs.
That concludes the information on how to calculate carbon emissions, from the definition to calculation methods for both individuals and companies and their implementation in Indonesia.
Understanding and measuring carbon emissions is important for acknowledging the impact of daily activities on the environment and for planning effective reduction steps.
To help reduce carbon emissions, you can join environmental conservation efforts with Indonesia Asri.
Through the #AksiAsri program, you have the opportunity to get involved in various real activities that support reducing the carbon footprint and using environmentally friendly energy.
By joining this campaign, you can participate in various sustainability-themed challenges and win prizes for each activity.
What are you waiting for? Come on, register now and show your real actions in preserving the Earth!
Read also: Carbon Capture and Storage: Technology to Reduce CO₂ Emissions
