Emissions Baseline Assessment
Establish a robust emissions baseline year for your organisation and track progress against it with confidence. NetNada helps you define your base year inventory, compare current performance against baseline, monitor both absolute and intensity-based reductions, and manage base year recalculations when structural changes occur — satisfying requirements for AASB S2, NGERS, SBTi, CDP, and Climate Active.
How It Works
Every credible emissions reduction claim starts with a well-defined baseline. The GHG Protocol requires organisations to establish a base year against which future performance is measured. Getting this right is foundational — it determines how your targets are set, how progress is reported, and whether your reduction claims withstand scrutiny.
Select and Define Your Base Year
Choose your baseline year based on data availability, organisational stability, and reporting framework requirements. NetNada helps you assess which historical year provides the most representative and verifiable starting point. For organisations new to reporting, the current year becomes your baseline with forward-looking tracking.
Build Your Base Year Inventory
Compile a comprehensive emissions inventory for your chosen base year across all relevant scopes and categories. NetNada ensures consistent methodology — the same emission factors, organisational boundaries, and calculation approaches used in your baseline are documented and version-controlled for future reference.
Document Methodology and Boundaries
Record the organisational boundary approach (operational control, financial control, or equity share), included emission sources, emission factors used, and any exclusions with justifications. This documentation is essential for auditors and ensures consistent comparison when recalculations are needed.
Configure Recalculation Triggers
Define the structural changes that trigger a base year recalculation: mergers, acquisitions, divestments, changes in calculation methodology, or discovery of significant errors. NetNada monitors for these triggers and guides you through the recalculation process when needed, maintaining the integrity of your trend data.
Track Performance Against Baseline
Compare current-year emissions against your baseline using absolute reduction (total tCO2e change) and intensity metrics (emissions per revenue, per employee, per unit produced). Visualise year-on-year trends, assess whether you're on track for targets, and generate baseline comparison reports for stakeholders.
Why Use Emissions Baseline Assessment
Establish Credible Reduction Claims
Without a properly defined baseline, emissions reduction claims lack credibility. Stakeholders, auditors, and reporting frameworks all require a documented, verifiable base year. NetNada ensures your baseline meets the methodological standards expected by AASB S2, CDP, SBTi, and Climate Active.
Satisfy Mandatory Reporting Requirements
Australian mandatory climate disclosure under AASB S2 requires organisations to report emissions trends against a base year. NGERS reporters must maintain consistent methodologies. NetNada's baseline management ensures you meet these regulatory obligations with properly documented historical comparisons.
Support Science-Based Target Setting
SBTi requires a clearly defined base year from which reduction targets are set. The baseline assessment ensures your base year inventory is comprehensive, methodologically sound, and recalculated appropriately when structural changes occur — all prerequisites for target validation and annual progress reporting.
Handle Structural Changes with Confidence
Mergers, acquisitions, and divestments distort emissions trends if the baseline isn't adjusted. NetNada's recalculation engine adjusts your base year inventory to reflect structural changes, ensuring like-for-like comparison. This prevents misleading reduction claims or overstated growth in emissions.
Track Both Absolute and Intensity Metrics
Growing organisations may see absolute emissions rise even while becoming more efficient. NetNada tracks both absolute reductions (total tCO2e) and intensity metrics (per revenue, per FTE, per unit) against baseline, giving a complete picture of environmental performance relative to business growth.
Build Institutional Knowledge
Baseline documentation captures the methodology decisions, data sources, and boundary definitions made in your first reporting year. When team members change or auditors ask questions years later, everything is recorded — emission factors, calculation methods, exclusion rationales, and data quality notes.
Who Uses Emissions Baseline Assessment
Organisations Beginning Their Reporting Journey
Companies measuring emissions for the first time need to establish a solid baseline from day one. Getting the foundation right means future years of reporting are built on consistent, verifiable data. NetNada guides new reporters through base year selection, boundary definition, and inventory compilation.
Companies Setting Science-Based Targets
SBTi target validation requires a base year inventory that meets specific methodological criteria. The baseline assessment ensures your base year is complete, uses appropriate emission factors, and includes the required scope coverage before submitting targets for validation.
Growing Organisations Undergoing Structural Change
Companies experiencing mergers, acquisitions, or divestments must recalculate their base year to maintain meaningful trend data. NetNada automates recalculation triggers and guides you through adjusting baseline emissions so that year-on-year comparisons remain valid.
AASB S2 and NGERS Reporters
Australian organisations subject to mandatory climate disclosure need documented base years with consistent methodology. The baseline assessment provides the regulatory-grade documentation, version control, and audit trail required for compliance with AASB S2 and NGERS frameworks.
Emissions Baseline Assessment Features
Base Year Selection Guidance
Evaluate potential base years against criteria including data completeness, representativeness, organisational stability, and framework requirements. NetNada recommends the most suitable base year and documents the rationale for auditors and stakeholders.
Comprehensive Base Year Inventory Builder
Compile your baseline emissions inventory across Scope 1, 2, and 3 with consistent methodology. Lock emission factors, calculation approaches, and organisational boundaries for the base year so they're preserved and referenceable in future reporting periods.
Methodology and Boundary Documentation
Record and version-control every decision made in establishing your baseline: organisational boundary approach, included sources, excluded sources with justifications, emission factor sources, GWP values used, and data quality assessments. Complete audit trail for assurance providers.
Automatic Recalculation Triggers
Configure rules that flag when a base year recalculation is needed — acquisitions exceeding a significance threshold, methodology changes, or emission factor updates. NetNada monitors for trigger events and initiates the recalculation workflow with clear guidance at each step.
Absolute and Intensity Trend Tracking
Compare current-period emissions against baseline using multiple metrics simultaneously: absolute tCO2e, emissions per AUD revenue, per full-time equivalent, per square metre, or per custom business metric. Visualise trends with clear baseline reference lines.
Year-on-Year Comparison Reports
Generate detailed comparison reports showing emissions changes by scope, category, site, and business unit relative to baseline. Decompose changes into organic growth, structural changes, efficiency improvements, and emission factor updates for transparent stakeholder communication.
Framework-Specific Baseline Compliance
Validate that your baseline meets requirements for specific frameworks: SBTi base year criteria, CDP baseline reporting expectations, Climate Active base year rules, and AASB S2 trend disclosure requirements. Gap analysis identifies any missing elements before submission.
Multi-Scenario Baseline Modelling
Model how different base year choices or recalculation approaches affect your reported trends. Compare fixed-base vs rolling-base approaches, assess the impact of including or excluding specific sources, and understand how structural changes alter your baseline before committing to recalculation.
Real Results from Real Users
See how companies are transforming their sustainability reporting
"Setting our emissions baseline properly was critical for our Climate Active certification. NetNada walked us through base year selection, documented every methodology decision, and now we have a solid foundation for tracking reductions year on year. When we expanded our reporting boundary, the recalculation process was straightforward."
- Established a verified baseline supporting Climate Active certification
- Completed base year recalculation in 2 days after boundary expansion
- Demonstrated 18% absolute emissions reduction against baseline
"After two acquisitions in 18 months, our emissions trend data was meaningless — were emissions growing because of poor performance or because we'd acquired new buildings? NetNada's baseline recalculation adjusted our base year to include the acquired assets retroactively. Now we can see genuine performance improvement separate from portfolio growth."
- Recalculated baseline to reflect two acquisitions within a week
- Separated genuine efficiency gains (12%) from portfolio growth effects
- Provided board with accurate like-for-like performance comparison
"We were preparing our first SBTi submission and realised our baseline wasn't robust enough — missing Scope 3 categories, inconsistent factors across sites, and no documentation of boundary decisions. NetNada helped us rebuild the baseline properly. Our SBTi validation went through on the first attempt."
- Rebuilt baseline to meet SBTi validation requirements
- Achieved SBTi target validation on first submission
- Documented complete baseline methodology for future audits
Frequently Asked Questions
Everything you need to know about Emissions Baseline Assessment
Related Features
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Set and monitor emissions reduction targets against your established baseline. Track progress toward SBTi-validated targets using verified base year data.
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Visualise actual emissions performance against target trajectory with your baseline as the starting point. Monitor initiative effectiveness over time.
Learn moreCarbon Footprint Dashboard
View your current emissions inventory alongside baseline comparisons. Drill into scope, category, and site-level changes relative to base year.
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Ensure your baseline methodology meets requirements for AASB S2, NGERS, CDP, and other reporting frameworks you're subject to.
Learn moreGet Started with Emissions Baseline Assessment
Build the Foundation for Credible Climate Reporting
Every meaningful emissions reduction starts with a well-defined baseline. NetNada helps you establish, document, and maintain your base year inventory with the rigour that auditors, investors, and reporting frameworks expect. Set up your baseline and start tracking real progress.