How to calculate emissions with carbon accounting software

Written by
Published on
September 30, 2024

Carbon accounting is the systematic process of measuring, calculating, and reporting an organization's greenhouse gas (GHG) emissions. For companies subject to climate reporting regulations—such as the Corporate Sustainability Reporting Directive (CSRD) or California's Climate Disclosure Acts—transparent and auditable carbon accounting is essential for regulatory compliance. Moreover, it serves as a the foundational step in an organization's journey towards reducing carbon emissions.

However, implementing robust carbon accounting processes can be a complex undertaking. Organizations face numerous challenges, including:

  • Developing comprehensive emissions inventories,
  • Collecting data from complex, global value chains,
  • Integrating diverse data sources and collection methods,
  • Applying appropriate emission factors and calculation methodologies in line with the Greenhouse Gas Protocol,
  • Addressing data gaps with accurate estimations, and
  • Ensuring results meet stringent audit requirements.

While spreadsheets can be used for carbon accounting, this manual approach is time-consuming and prone to errors, increasing the risk of failed audits and noncompliance. Recognizing these challenges, many organizations are now turning to specialized carbon accounting software to streamline and enhance their processes.

Ready to transform your approach to carbon accounting? This step-by-step guide will walk you through creating a transparent, efficient, and audit-ready process, leveraging Pulsora's purpose-built sustainability management platform. Let's dive in and unlock the potential of smart, sustainable business practices.

Step 1: Identify and map emission sources

The foundation of effective carbon accounting lies in a comprehensive inventory of greenhouse gas emissions. Organizations must meticulously identify and categorize all emission sources across three Scopes:

  • Scope 1 emissions: Direct emissions from owned or controlled sources, such as company vehicles or on-site fuel combustion.
  • Scope 2 emissions: Indirect emissions from purchased electricity, steam, heating, and cooling.
  • Scope 3 emissions: All other indirect emissions occurring in the value chain, including upstream and downstream activities like supply chain operations, business travel, and product use.

This thorough mapping ensures no significant emission sources are overlooked, setting the stage for accurate and comprehensive carbon accounting.

Step 2: Define organizational structure and boundaries

Comprehensive carbon accounting requires a platform capable of encompassing your entire organizational structure. This includes all entities within your value chain, from suppliers to end-users, as well as energy facilities. It's crucial to distinguish between renewable and non-renewable energy sources, as this significantly impacts carbon calculations.

Pulsora simplifies this process by allowing companies to map their complete organizational structure directly within the platform. Users can easily input and manage data on various entities, facilities, and energy sources, streamlining the carbon accounting process. The platform's intuitive interface makes it straightforward to incorporate information on renewable energy usage, ensuring accurate and holistic emissions calculations across all three scopes (1, 2, and the 15 categories of Scope 3).

Step 3: Establish Your reporting period

Selecting an appropriate reporting period is a critical decision in carbon accounting. Whether you choose annual, quarterly, or monthly intervals, consistency is key. A well-defined reporting period enables:

  • Accurate tracking of emissions over time
  • Meaningful comparisons between reporting cycles
  • Clear assessment of progress towards sustainability goals
  • Enhanced transparency in your organization's carbon reduction efforts

Pulsora's platform offers the flexibility to customize your reporting period to align with your organization's specific needs and regulatory requirements. This adaptability ensures that your carbon accounting practices remain both effective and compliant.

A screenshot of the Pulsora software showing a dropdown where you can select a reporting period.d

Step 4: Collect emissions data

This critical step involves gathering detailed data on all activities contributing to your organization's GHG emissions. This encompasses a wide range of sources, including:

  • Fuel consumption for company vehicles and facilities
  • Electricity usage across all operations
  • Waste generation and disposal methods
  • Business travel (air, rail, road)
  • Employee commuting patterns
  • Production outputs and associated emissions

Collecting emissions data often requires compiling and analyzing various documents such as utility bills, fuel receipts, travel records, and production reports.

Pulsora streamlines this process by offering a versatile platform capable of ingesting and processing GHG emissions data across Scopes 1, 2, and 3. With Pulsora, there are multiple ways to collect data:

  • Seamless API integrations for real-time data flow
  • Secure file uploads and SFTP for batch processing
  • Automated data collection workflows to gather information from your entire value chain
  • User-friendly manual data entry options for flexibility

To further enhance efficiency, Pulsora provides comprehensive data formatting guidance. This ensures a smooth transition from data collection to emissions calculations, eliminating the need for time-consuming reformatting and reducing the potential for errors.

Step 5: Identify and apply emission factors

Emission factors are crucial tools in carbon accounting, providing a standardized method to convert business activities into their equivalent greenhouse gas (GHG) emissions. These factors link the quantity of GHGs emitted to specific business processes, activities, or fuel usage. They allow organizations to translate data such as fuel consumption or energy usage into CO2 equivalent emissions, typically expressed as the amount of GHG emitted per unit of activity.

Pulsora makes it easy to apply emission factors to your carbon calculations with both standard and customizable emission factors. You can access an extensive, regularly-updated emission factor library in order to perform accurate and reliable carbon accounting with ease.

With Pulsora, you have the flexibility to:

  • Access a comprehensive library of up-to-date emission factors
  • Apply custom emission factors tailored to your specific operations
  • Easily update factors as new data becomes available
  • Ensure consistency in calculations across your organization

By leveraging Pulsora's advanced emission factor capabilities, you can enhance the accuracy and reliability of your carbon accounting, leading to more informed decision-making in your sustainability efforts.

A screenshot of the Pulsora software showing emissions factors.

Step 6: Calculate emissions

Once you've gathered your data, it's time to calculate your emissions. The specific calculation method depends on the type of data collected and the emission source. Common approaches include:

  • Location-based method: Uses average emission factors for a geographic area
  • Market-based method: Considers specific electricity purchases and contracts
  • Spend-based method: Estimates emissions based on financial data
  • Distance-based method: Calculates emissions from transportation activities

Pulsora simplifies this process by providing comprehensive carbon calculators for Scopes 1, 2, and 3 emissions. These calculators align with GHG Protocol standards and offer flexibility to choose the most appropriate method based on your available data and organizational needs.

Step 7: Ensure data quality, auditability, and completeness

To create a robust carbon accounting process, it's crucial to focus on data quality, auditability, and completeness throughout every stage. These elements are not mere afterthoughts but integral components of an effective carbon accounting system.

Pulsora's platform seamlessly integrates these critical aspects into your carbon accounting journey:

Enhancing data quality

Pulsora employs advanced AI-driven data validation rules to ensure accuracy and completeness. The system can automatically cross-reference current data with historical records and flag any discrepancies, providing an additional layer of quality assurance.

A screenshot of the Pulsora software showing validations in the carbon calculator settings.

Ensuring auditability

Pulsora maintains comprehensive audit trails throughout the data collection and GHG calculation processes. These trails meticulously document data collection, modifications, and calculations, including specific details such as emission factors and methodologies. This level of detail facilitates easy review by third-party auditors. The platform also allows for the upload of supporting evidence, such as utility bills, further enhancing auditability.

A screenshot of the Pulsora software showing an audit log.

Addressing data gaps and estimations

Recognizing that perfect data is rarely available, Pulsora provides tools to identify and address data gaps systematically. The platform follows the GHG Protocol's estimation methodology, offering a calendarized view of carbon data organized by emission source and scope (1, 2, or 3). This approach allows organizations to improve the accuracy and reliability of their carbon accounting, even when faced with incomplete data sets.

A screenshot of the Pulsora software showing a calendar view of carbon data.

By leveraging Pulsora's comprehensive features, organizations can significantly enhance the quality, auditability, and completeness of their carbon accounting processes, leading to more reliable sustainability outcomes and informed decision-making.

Step 8: Integrate carbon data into reports and disclosures

After completing comprehensive and precise carbon calculations, it's time to incorporate this vital information into your sustainability reports and regulatory disclosures. This step is crucial for meeting reporting requirements such as the Carbon Disclosure Project (CDP) and complying with emerging regulations like the Corporate Sustainability Reporting Directive (CSRD).

Pulsora simplifies this process with its advanced reporting capabilities. Our platform offers:

  • Customizable report templates aligned with major reporting frameworks
  • Automated data population to minimize manual input errors
  • Real-time preview functionality for quality assurance
  • One-click publishing in required formats

By leveraging Pulsora's intuitive reporting tools, you can transform complex carbon data into clear, compliant, and impactful disclosures, saving time and ensuring accuracy throughout the reporting process.

Streamline your carbon accounting with Pulsora

Carbon accounting doesn't have to be a daunting task. With the right tools and expertise, it can become a seamless part of your sustainability strategy.

Pulsora offers a comprehensive, user-friendly platform that transforms the complexities of carbon accounting into a streamlined process. From efficient data collection to precise emissions calculations and robust audit trails, our software ensures accuracy and reliability at every step. By automating time-consuming tasks, Pulsora frees up your resources, allowing you to focus on what truly matters: driving impactful decarbonization initiatives and achieving your sustainability goals.

Ready to elevate your carbon accounting capabilities? Schedule a call with one of Pulsora's carbon accounting experts to discover how our innovative solutions can propel your organization towards a more sustainable future.