Emissions Reporting

Accurate, continuous emission reporting for vessels that gives you data you can actually act on.

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Precise emission figures for every voyage, every port call

The reporting requirements facing the shipping industry have never been more demanding and they are tightening further. Weel & Sandvig has developed WS.PEMS to meet the marine environment's challenges by applying the same first-principles modeling that the oil and gas industry relies on to LNG vessels and combustion engine-driven ships.

The result is emission data that is not an estimate derived from fuel consumption tables. It is a continuous, physically grounded calculation based on what your engines are actually doing, updated in real time throughout every voyage.

Regulatory alignment for your entire fleet

WS.PEMS reporting outputs are designed with IMO MARPOL Annex VI, the EU MRV Regulation, EU ETS for shipping, and FuelEU Maritime requirements in mind. Our technology covers the full scope of what flag states, port authorities, and the European Commission need to see.

We deliver continuous data, not annual estimates

Fuel-based emission factors produce annual totals. WS.PEMS produces continuous, voyage-level emission data from the engine room's existing instrumentation. It gives fleet and operations managers the granular insight needed to manage performance, not just report it.

Data for CII and EEXI

The Carbon Intensity Indicator and Energy Efficiency Existing Ship Index both require defensible emission and energy data. WS.PEMS provides the calibrated, continuous data stream that compliance managers need to support CII ratings, EEXI documentation, and SEEMP implementation.

Manage your fleet's emission performance voyage by voyage

The shipping industry faces growing pressure to demonstrate active management of emissions and not just post-hoc annual reporting. WS.PEMS installs on your existing engine monitoring systems with no new hardware, delivering continuous emission data from each engine across every voyage.

Speed optimization, fuel switching, and load management decisions are reflected immediately in the data stream. It allows managers to track emission impacts in real time, plan ahead for port calls, and prepare for regulatory inspections with confidence rather than estimates compiled at the end of the year.

Reports that satisfy every compliance requirement

Regulatory compliance differs - and the requirements are changing and multiplying. Our flagship technology WS.PEMS generates standardized methodology and documentation requirements. For each voyage. For every reporting period. It is ready for submission to flag state administrations, the European Commission, and accredited verifiers.

The underlying data trail, from raw engine sensor readings through the physical model to the reported figure, provides the traceability that third-party verifiers require and that port state control inspectors increasingly expect. When a vessel is detained for non-compliance, a robust data record is your first line of defense.