Published on 2026-06-22
We are proud to have been featured by Riviera Maritime Media, who took a closer look at the story behind Aderco 2055G+ and the journey that led to the launch of our industry-first programme combining fuel treatment, verified performance monitoring, and voluntary carbon credits.
Now that Aderco has put verified emissions reductions on a tradable footing, Riviera spoke to its architects to understand how the savings are proven and why it took five years to get here.
When Aderco unveiled its 2055G+ programme at the start of June, the headline almost wrote itself: a fuel additive specialist turning onboard performance into Gold Standard carbon credits, with early class-verified savings of 4.84% on a reefer and 3.25% on a capesize already recorded. The more revealing story, however, lies beneath the announcement: what it takes to make a fuel saving indisputable, and why a technology that has existed for 15 years is only now being monetised.
The commercial logic addresses a gap the industry has endured for decades. Aderco's 2055G additive reduces fuel consumption by 2–5%. When layered over retrofits owners have already installed, such as an optimised hull, propeller boss cap fins or a fresh coating applied at the last drydocking, the firm claims combined savings of 10–15%.
Carbon claims in shipping carry a credibility burden, and 2055G+ is designed to address it directly. As previously reported, a vessel trials the additive for at least six months against a baseline derived from historical noon reports. The resulting savings are then monitored and converted into voluntary carbon credits by project developer Adi Terra, under the Gold Standard methodology.
The methodology was proven not at sea but in the Australian outback. In 2020, Aderco conducted large-scale monitoring on mining trucks and recorded savings of around 5%, audited by external stakeholders. The key lesson was duration.
"With monitoring sustained long enough, you flatten all parameters and variables, across five years, then one year. At that point, you know for a fact whether savings are being achieved." Gérald Baiwir, Head of Environment
The additive itself was never the constraint; the challenge lay in building the system to quantify and certify its impact.
That system has quietly created a second area of expertise. Analysts overseeing the monitoring pool, now more than 100 vessels, have learned to interpret anomalies. An unexplained rise in consumption, investigated with the owner, may turn out to be a hull fouled in tropical waters and overdue for cleaning.
"From being purely fuel treatment specialists, we now also have strong expertise in data analysis." Esteve Servajean, Head of Marine
Owners, often sceptical at first, tend to be persuaded once a face-to-face walkthrough clarifies the process and the prospect of additional revenue tips the balance. Data security is managed through NDAs and internal controls.
The pitch rests on a grounded view of the decarbonisation timeline.
"Today, around 95% of the fleet still burns fossil fuels, and three quarters operates in the tramp trades. We have to be pragmatic and support decarbonisation from that starting point, whatever the next engine or fuel may be." Gérald Baiwir, Head of Environment
This positioning speaks directly to compliance pressures, including the IMO Carbon Intensity Indicator (CII) and the EU Emissions Trading System (EU ETS), helping owners demonstrate verified efficiency improvements and translate them into recognised outcomes.
The ambition extends beyond the additive itself. Aderco has moved from supplier to carbon project owner, and Adi Terra is intended to grow into a company capable of developing carbon projects for the wider industry.
The benchmark against which Aderco will be judged is clear: 500 to 1,000 ships generating carbon credits within a year, retrofit costs recovered, and the industry's split incentive finally bridged. Whether voluntary carbon credits can maintain both their value and credibility over the long term remains the question that only time and continued verification can answer.
Read the full article:
Inside Aderco's carbon credit bet: the data, the origins and the long game
By Edwin Lampert, Riviera Maritime Media
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