Even the most advanced cement plants risk losing out financially due to errors in their biogenic CO₂ data.

Outdated carbon emissions monitoring systems are vulnerable to issues like undetected leaks and oversaturated cartridges. These seemingly small problems often result in skewed emissions reporting, failed audits and missed opportunities in carbon trading schemes.

With regulations tightening across the UK and EU, data accuracy within cement plants is no longer a “nice to have.” It is a strategic requirement. Cement operators already familiar with monitoring and reporting obligations are increasingly looking for solutions that help them gain commercial value from what they report, as well as comply.

If you are reviewing how 2025 environmental regulations will impact make sure you are up to date with the details of the upcoming changes.

The cost of compromise in biogenic CO₂ data

Many cement plants already measure their carbon dioxide emissions, but not all systems produce data of equal value. Two often overlooked risks can have serious financial consequences: system leaks and adsorber saturation.

Leaks cause problems as they allow ambient air to mix with stack gas during sampling. This can dilute the sample and lead to an artificially high biogenic CO₂ fraction, since ambient air contains negligible fossil-derived CO₂. Similarly, condensations in heated lines can cause CO₂ washout, effectively skewing the sample toward ambient composition. In both cases, these effects can distort the carbon emissions measurement potentially leading to inaccurate reporting, compliance risks or incorrect carbon credit allocations.

Oversaturation poses a different threat. When a cartridge reaches capacity, it can no longer absorb CO₂. This leads to underreported CO₂ levels and could trigger the need for re-sampling or invalidate previous reports.

In a 100,000-tonne cement facility, even a 1 percent drop in accuracy can cost upwards of $45,000 per year in unrealized carbon credit value. If non-compliance or invalid reports force additional testing or site visits, the costs increase even more.

To understand the financial upside of getting this right, explore our deeper breakdown of the business benefits of accurate biogenic CO₂ measurement.

How AMESA-B tackles the two main points of failure

Eliminating leaks through automated integrity checks

The AMESA-B smart sampler includes built-in leak detection features that verify system integrity before and after sampling. These checks use pressure decay tests that automatically run without operator input. This ensures that leaks are caught early, and sample contamination is prevented.

These leak detection protocols align with EN ISO 13833, which requires leak rates to remain under 5.0 percent of the sampling flow rate. The standard is used globally as a benchmark for quality in long-term sampling of greenhouse gases.

In a real-world trial, systems using manual checks experienced biogenic fraction variability between 5 and 10 per cent. When AMESA-B was installed, that variability dropped to just 5 per cent. The system’s dual-stage design checks both the probe connections and the seal integrity around the cartridge, delivering significantly more accurate data.

To learn why precision matters for carbon emissions monitoring in the cement sector, read our article further exploring why CO₂ measurement accuracy matters more than ever.

Preventing breakthrough with saturation control

Saturation is harder to detect manually in a cement plant. A cartridge might continue to appear functional while failing to capture all CO₂. Once full, it cannot perform its role, and Carbon dioxide breakthrough occurs.

AMESA-B avoids this risk by regulating flow in real time using a mass flow controller that adjusts between 5 and 50 mL/min depending on stack conditions. Saturation monitoring is done by a CO₂ breakthrough sensor, located after the adsorber cartridge.

When the cartridge nears its capacity limit, the system automatically alerts operators, prompting timely replacement. This maintains over 98 per cent collection efficiency and removes guesswork from the process.

TThis safeguard alone can save cement plants up to $120,000 per year by avoiding invalid sampling runs, minimising cartridge waste and ensuring continuity in reporting.

We reviewed how this technology is already creating value in multiple sectors in our piece on how four industries are benefitting from accurate biogenic CO₂ monitoring.

Field-proven results: Heidelberg Materials in Sweden

Accuracy is not just a theoretical goal. At the Slite Cement Plant in Sweden, Heidelberg Materials deployed the AMESA-B system across a 12-month continuous monitoring period. The outcomes were compelling:

• 99.7 per cent data completeness
• Less than 2 per cent deviation between sampling cycles
• Certification of over 300,000 tonnes of biogenic CO₂ for use in bioenergy with carbon capture and storage (BECCS)

These results demonstrate the operational and commercial advantage of robust safeguards. In parallel test scenarios, other systems were unable to deliver the same consistency.

Designed for compliance, built for carbon revenue

The AMESA-B system is not just a monitoring tool, it is a compliance and revenue assurance solution that was developed in direct alignment with the evolving requirements of the UK Environment Agency, the EU Emissions Trading Scheme (EU ETS), and upcoming Monitoring, Reporting and Verification (MRV) standards.

Audit logs, sampling volumes, replacement cycles and pressure data are automatically recorded and stored in accessible, regulator-ready formats. This allows for rapid verification and significantly reduces the burden of manual documentation. In fact, operators using AMESA-B have reported up to 73 per cent fewer inspection flags compared to sites using manual systems.

If your team is currently reviewing how to prepare for EU ETS Phase 4 or UK MRV rules in 2028, AMESA-B delivers a platform that is already ahead of what those frameworks are expected to demand.

What to do next

See the financial impact of more accurate biogenic CO₂ data for your cement plant with our free Biogenic CO₂ Calculator. It provides an instant estimate based on your tonnage and reporting parameters.

For a more detailed technical breakdown of the sampling process, legal requirements, and safeguard logic, download our Biogenic CO₂ Whitepaper. It includes case studies, data examples and practical next steps for cement, waste-to-energy, and biomass facilities.

If you are ready to explore implementation, visit the AMESA-B product page where you will find system specifications, installation options and contact details for our technical team.

With carbon revenue opportunities rising and legislation becoming more demanding, accurate biogenic CO₂ monitoring in the cement industry is no longer just a technical matter. It is a competitive edge.