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Maritime Regulatory Compliance Specialist, Carbonlogy

Gökalp Sezer

Gökalp Sezer started out in software engineering and moved into maritime emissions regulation: how shipping companies measure, verify and report greenhouse-gas emissions under IMO CII, EU MRV, EU ETS and FuelEU Maritime. At Carbonlogy that background goes into the calculation engine and the regulatory reference its figures are checked against. Holds TÜV SÜD certificates in ISO 14064 (parts 1, 2 and 3) and as ISO 14067 Product Carbon Footprint Lead Implementer, and Lloyd's Register's EU ETS and FuelEU Maritime training certificate.

Background

  • ISO 14064-1, 14064-2 and 14064-3 — GHG inventories, projects and verification (TÜV SÜD)
  • ISO 14067:2018 Product Carbon Footprint — Lead Implementer (TÜV SÜD)
  • EU ETS & FuelEU Maritime — Lloyd's Register maritime training
  • Software engineering background; builds the Carbonlogy calculation engine

Elsewhere

11 articles

  • ClusterCII correction factors and voyage adjustments (G5)What G5 (MEPC.355(78)) lets a ship deduct or correct before CII rating: ice and safety voyage adjustments, tanker factors, electrical and boiler deductions.Reviewed
  • PillarIMO CII rating calculation: reference lines to A–E bandsHow the IMO CII rating is calculated: attained vs required CII, reference lines, reduction factors, the exp(d) boundary vector and the A–E rating bands.Reviewed
  • ClusterEU ETS cost for shipping: allowances, price and the phase-inWhat the EU ETS costs a ship: allowances due from verified emissions, voyage share and phase-in, times an illustrative EUA price, with the 2024–2026 cost ramp.Reviewed
  • PillarEU ETS for shipping: scope, phase-in and allowances dueHow the EU ETS applies to ships: covered vessels and voyages, the half and full emission shares, the 2024–2026 phase-in, and how allowances due are calculated.Reviewed
  • ClusterEU MRV monitoring plan: contents, methods and assessmentWhat an EU MRV monitoring plan must contain under Article 6, the four Annex I fuel methods, what the verifier assesses under Article 13 and when it must change.Reviewed
  • PillarEU MRV for shipping: scope, annual cycle and verificationHow EU MRV works for ships: who must monitor, the yearly cycle from monitoring plan to verified report, the 31 March deadline and what gets filed in THETIS-MRV.Reviewed
  • ClusterFuelEU Maritime pooling: rules, allocation and penaltyFuelEU Maritime pooling under Article 21: the compliance balance, the three validity rules, how surplus covers deficit ships and the penalty a pool avoids.Reviewed
  • StatusFuelEU Maritime in Norway: delayed to at least 2028FuelEU Maritime will not apply in Norway before 1 January 2028. Until the EEA incorporates it, Norwegian ports stay third-country and half the energy counts.Reviewed
  • PillarFuelEU well-to-wake GHG intensity: formula, factors, exampleHow FuelEU Maritime measures well-to-wake GHG intensity: Annex I formula, the AR4 warming potentials it prescribes, Annex II factors, and a worked HFO example.Reviewed
  • PillarIMO Net-Zero Framework: what it is and where it standsThe IMO Net-Zero Framework is approved but not adopted. What the global fuel standard would do, and the dates that decide whether it enters into force.Reviewed
  • PillarUK ETS vs EU ETS for shipping: scope and surrenderUK ETS starts 1 July 2026 and is built the opposite way to EU ETS: scope attaches per activity, so an international call owes nothing at sea, all at berth.Reviewed

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