Case studies | Find examples on decarbonization measures, costs and regulations to benchmark your business case

Optimising FuelEU compliance strategy for minimum cost - penalty, pooling, or biofuels?

This case study compares three compliance strategies for FuelEU (paying the penalty (business as usual), buying pool credits from a third party, and blending biofuels) for a representative 4-ship fleet over 2026–2040. Results show that pooling and biofuels both beat business as usual by 6–7%, but it is a coin toss on which is better for you. The outcome is highly sensitive to B100 price and tightens structurally in favour of biofuels after 2030, making this a tipping-point question rather than a one-off choice.

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Grid Services FAQs: 24 Questions on FCR, aFRR, Trading, and Congestion Management

This FAQ provides essential answers on grid balancing markets (FCR, aFRR, mFRR), trading markets (day-ahead, intraday), and congestion management. Covers prequalification timelines, revenue ranges, operator roles, technical requirements, and more. It is intended for developers and asset owners in Northwest Europe.

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How Energy Storage Earns Money from the Grid: A Developer's Guide to Grid Services Revenue

Batteries can earn money from the grid in three ways: balancing (steady capacity fees), trading (price spreads), and congestion management (local activation). But grid services are fragmented by country, operator, and product: what works in the Netherlands doesn't work in Germany. This guide shows energy storage developers how to stack these three revenue streams for maximum ROI. Intended for developers in port environments.

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Regulations, Ship Types Guide, Case Study Vincent Doedee Regulations, Ship Types Guide, Case Study Vincent Doedee

How ships are classified: a reference guide to IMO, EU, and Industry frameworks

Every regulator, classification society, broker, and data provider has its own ship-type taxonomy: the same vessel can be a Ro-pax ship to EU MRV, a Cruise Passenger Ship under IMO MARPOL Annex VI, and simply a Passenger ship in a Clarksons fleet report. None of the labels is wrong; they are the working vocabulary of different communities. This blog provides guidance by harmonizing them into the ‘Sustainable Ships framework’: 20 categories, 72 types, and 52 sizes.

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Case Study, Bulk Carrier, Regulations Vincent Doedee Case Study, Bulk Carrier, Regulations Vincent Doedee

Compliance exposure costs of Greek dry bulk carriers until 2050

Shipping companies face a growing set of regulatory obligations (EU ETS, UK ETS, FuelEU Maritime, and IMO Net-Zero) that directly affect operating costs. This case study determines these costs for a representative fleet of eight Greek dry bulk vessels, calculating exposure under EU ETS, FuelEU Maritime and IMO Net-Zero from 2026 to 2050. The fleet faces a total compliance cost of $4.1 billion over the analysis period, escalating from $30 million in 2026 to $ 362 million in 2050.

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Case Study, Shore Power, Decarbonization Vincent Doedee Case Study, Shore Power, Decarbonization Vincent Doedee

What does it cost to generate electricity onboard a ship?

This case study determines the cost of generating electricity onboard a ship using auxiliary diesel engines to determine when it is more cost-effective to purchase electricity from the grid in port. Results show that fuel costs alone sit around $0.20 per kWh, but once regulatory compliance costs are layered on top, the total effective costs rise sharply to $1.00 per kWh by 2040.

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FuelEU, Regulations Roy Gallano FuelEU, Regulations Roy Gallano

MSAR FuelEU Webinars

EMSA and DG MOVE are hosting a dedicated webinar series aimed at supporting maritime stakeholders in navigating the implementation of FuelEU Maritime and its broader regulatory context. The sessions are designed to provide practical insight into how the regulation will be applied in real-world operations, including its impact on fuel choices, compliance strategies, and commercial decision-making across different vessel types and trades.

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Shore Power, Case Study, Decarbonization, Tanker Vincent Doedee Shore Power, Case Study, Decarbonization, Tanker Vincent Doedee

Business case to refit a Tanker to use Onshore Power Supply (OPS)

This case study explores the retrofit of the crude oil shuttle tanker Toril Knutsen to use onshore power supply (OPS) during port stays. The analysis assesses onboard retrofit requirements, power demand at berth, CAPEX, and the resulting business case. Total CAPEX is estimated at around $4M for a conservative tanker-specific configuration. Payback can fall in the range of 1 to 4 years, with most value driven by reduced FuelEU, EU ETS, and IMO-related compliance costs.

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Impact of reefers on container ship power demand

Reefers (Refrigerated Containers) increase power demand onboard container ships by approximately 4.38 kW per reefer container. The implication is material: even a relatively small share of reefers can account for a disproportionately large share of total berth power demand. Realtime measurements show that even when 1% of all containers onboard a ship are reefers, it can consume almost 20% of the ship’s total energy demand.

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Shore Power, Case Study, Decarbonization Vincent Doedee Shore Power, Case Study, Decarbonization Vincent Doedee

Fundamental challenges of shore power (OPS)

If shore power projects were easy, every port would already have them. Instead, developers run into the same fundamental challenges: unpredictable vessel power demand, complex infrastructure decisions, and business cases full of question marks. In this blog we look at those problems, and how our tools help you tackle them.

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Shore Power (OPS) price per kWh in EU

AFIR and FuelEU Maritime make the use of onshore power supply (OPS) effectively mandatory but say nothing about what it should cost or how it should be priced. The result is a patchwork of tariff designs and varying levels of transparency, making like-for-like comparisons difficult for shipowners and operators. This blog aims to provide at least some guidance on the matter.

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Case Study, Regulations, EU ETS Vincent Doedee Case Study, Regulations, EU ETS Vincent Doedee

EU ETS Price Forecast - 2026

With shipping now included in EU ETS, carbon prices are becoming a major cost driver for maritime transport. As the total amount of emission allowances gradually decreases, prices are expected to rise over time. Many projections assume an increase of roughly 7% per year, potentially reaching €400–€500 per tonne of CO₂ in the long term.

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Volumetric comparison marine fuels

Fuel selection is not only about emissions or cost - tank space often becomes the limiting factor. This article compares marine fuels by volumetric energy density (VLSFO as reference), shows why HFO/LFO have historically dominated, and why methanol is a practical alternative fuel from a ship design perspective. Methanol still requires roughly 2–2.5× the tank volume of conventional fuels, but performs better than ammonia or hydrogen for volume-constrained ships.

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FuelEU, Biofuels, EU ETS, Decarbonization Vincent Doedee FuelEU, Biofuels, EU ETS, Decarbonization Vincent Doedee

Transition fuels without transition headaches - Q&A with Quadrise

This Q&A session explores how transition fuels can support maritime decarbonization today, without major retrofits or new infrastructure. Together with Quadrise, we discussed MSAR® and bioMSAR™, oil-in-water emulsion fuels designed to improve combustion, reduce emissions, and support compliance under EU ETS and FuelEU Maritime. Relevant for shipowners and operators seeking practical solutions for the existing fleet.

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Regulations, FuelEU, Biofuels, EU ETS Vincent Doedee Regulations, FuelEU, Biofuels, EU ETS Vincent Doedee

Book and Claim explained - Q&A with Vurdhaan

This Q&A session explores the role of book and claim systems in maritime decarbonization, featuring Himanshu Sharma from Vurdhaan, a platform providing independent registries for Scope 3 emission reductions. Himanshu explains how virtual crediting works, why transparency and verification are key, and how book and claim differs from compliance pooling under FuelEU Maritime.

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Plug in or Pay up?

When does the use of shore power become cost-effective for shipowners under new EU and IMO regulations? Using the Shore Power Quickscan, this article breaks down key cost components such as fuel, electricity, EU ETS, FuelEU Maritime, and the upcoming IMO Net-Zero framework and compares cost impact of different routes on a 2,500 TEU containership. Results show that while shore power can already deliver savings from 2025 onwards (!), its competitiveness strengthens sharply after 2030 as compliance costs rise.

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Case Study, Regulations, FuelEU, EU ETS, IMO Net-Zero Vincent Doedee Case Study, Regulations, FuelEU, EU ETS, IMO Net-Zero Vincent Doedee

Emission Properties for EU ETS, FuelEU and IMO Net-Zero

Shipowners and operators face the challenge of navigating multiple regulatory frameworks - EU ETS, FuelEU Maritime, and IMO Net-Zero - each employing distinct methodologies and emission factors for assessing fuel emissions. This blog provides clear guidance on the differing emission factors and calculation methods employed by each regulatory framework.

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Case Study, Regulations, FuelEU, EU ETS, IMO Net-Zero Vincent Doedee Case Study, Regulations, FuelEU, EU ETS, IMO Net-Zero Vincent Doedee

Compliance costs per mT of fuel from 2025 until 2050

Accurate assessment of marine fuel costs is becoming increasingly critical as regulatory pressure grows, especially given the recently announced IMO Net-Zero Framework. This blog uses a VLSFO-equivalent cost model to evaluate the impact of FuelEU Maritime, EU ETS, and IMO Net-Zero regulations on a wide range of fuels. By comparing fossil, bio-based, and synthetic fuels under realistic scenarios, the analysis shows that compliance costs - driven by emissions penalties and carbon pricing - are expected to exceed fuel prices by 2030 for many options.

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Regulations, FuelEU, IMO Net-Zero, IMO Net Zero Vincent Doedee Regulations, FuelEU, IMO Net-Zero, IMO Net Zero Vincent Doedee

FuelEU and IMO Net-Zero Framework explained - Q&A with Normec Verifavia

This Q&A session explores the upcoming IMO Net-Zero Framework, featuring Rajat Bishnoi and Yuvraj Thakur from Normec Verifavia, an accredited verifier supporting shipowners with emissions reporting and regulatory compliance. They explain the new GHG Fuel Intensity and Fuel Standard requirements, compare them to FuelEU Maritime, and discuss penalties, registry systems, and practical implications for shipowners preparing for 2027–2028 enforcement.

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