Written by Graham Paul – Service Delivery Director
With over twenty years of experience in the energy sector, Graham leads service delivery, sales and marketing to enhance customer experience and scale TEAM’s carbon and energy services with a data‑driven, outcomes focus.
Organisations managing and reporting greenhouse gas (GHG) emissions may soon benefit from a simpler and more consistent approach to carbon accounting. The International Organization for Standardization (ISO) and the Greenhouse Gas Protocol (GHG Protocol) have announced plans to combine their corporate carbon accounting frameworks into a single harmonised global standard. The move aims to reduce complexity, improve consistency, and support more effective climate action worldwide.
Why are the Standards Being Combined?
Currently, many organisations use a combination of ISO standards and the GHG Protocol to measure, manage, and report their emissions. While both frameworks are widely recognised, differences in methodologies and reporting requirements can create additional administrative burdens and make comparisons between organisations more challenging.
The new initiative follows a strategic partnership announced by ISO and GHG Protocol in 2025, designed to address fragmentation in emissions measurement and reporting. The organisations believe that a unified standard will provide a common global language for greenhouse gas accounting, helping businesses, governments, and stakeholders work from a consistent foundation.
According to the announcement, the consolidated framework will combine:
- GHG Protocol’s Scope 1, Scope 2, and Scope 3 emissions standards
- GHG Protocol’s Actions and Market Instruments (AMI) standard
- ISO 14064-1 greenhouse gas accounting requirements.
An integrated public consultation is expected in Q2 2027, with the aim of developing a single co-branded corporate carbon accounting standard.
What Does This Mean for Energy Management Systems?
For organisations operating an Energy Management System (EnMS), particularly those aligned with ISO 50001, the announcement could represent a significant step towards greater integration between energy management and carbon reporting activities.
Energy Management Systems are designed to help organisations monitor energy performance, identify opportunities for improvement, and reduce energy consumption. As energy use remains one of the primary contributors to organisational carbon footprints, robust energy management plays a critical role in supporting accurate emissions reporting and achieving sustainability objectives.
A unified carbon accounting standard may help organisations:
- Align energy performance data more closely with emissions reporting requirements
- Reduce duplicated reporting processes across multiple frameworks
- Improve the consistency of reported emissions data
- Strengthen governance and assurance over sustainability reporting
- Support more informed energy and carbon reduction decision-making.
For businesses already investing in energy monitoring, metering, and data management systems, harmonised reporting requirements could simplify the process of translating energy consumption data into credible carbon disclosures.
Supporting GHG Emissions Reduction
One of the key objectives highlighted by ISO and GHG Protocol is enabling organisations to spend less time navigating reporting complexity and more time focusing on GHG emissions reduction.
For many organisations, carbon reporting requirements have expanded significantly in recent years through voluntary frameworks, investor expectations, and regulatory obligations. While transparency remains essential, managing multiple reporting approaches can divert resources away from implementing practical emissions reduction initiatives.
The proposed unified standard aims to:
- Simplify greenhouse gas accounting
- Reduce duplication in reporting activities
- Improve consistency across markets and jurisdictions
- Encourage broader stakeholder engagement
- Support investment in decarbonisation efforts.
By creating a clearer and more consistent methodology for measuring emissions, organisations may be better positioned to identify carbon hotspots, prioritise reduction projects, and track progress towards net zero targets.
Preparing for the Future
Although the new standard is still under development, the direction of travel is clear. Organisations should continue strengthening the foundations needed for effective carbon management, including accurate energy data collection, regular performance monitoring, and robust emissions reporting processes.
An effective Energy Management System can provide the data and governance needed to support both regulatory reporting requirements and long-term GHG emissions reduction strategies. As carbon accounting standards evolve, organisations with strong energy management practices are likely to be better positioned to adapt, demonstrate progress, and support credible climate action.
What This Means For Organisations
The proposed unified carbon accounting standard signals a move towards greater consistency and simplicity in emissions reporting. For organisations focused on sustainability, energy efficiency, and net zero targets, this could reduce reporting complexity while strengthening the link between energy performance and carbon management.
Now is a good time to review how energy data is collected, how emissions are calculated, and whether existing processes can support future reporting requirements. Organisations that establish strong energy management practices today are likely to be best placed to respond to evolving carbon accounting standards and accelerate meaningful GHG emissions reduction in the years ahead.