Wärtsilä Upgrade Package Expected to Cut Over 1,500 Tons of CO₂ Emissions Annually From Two Ulusoy Bulk Carriers
Technology group Wärtsilä will upgrade the Wärtsilä RT-flex main engines on two bulk carrier vessels owned by Turkey-based Ulusoy Sealines
According to Wärtsilä, the planned upgrades are expected to extend the vessels' operational lifespans, enhance performance, and deliver substantial fuel and CO₂ savings. The orders were confirmed in Q4 2024 and Q1 2025.
The upgrades come in response to tightening global emissions regulations, such as the IMO’s Carbon Intensity Indicator (CII), which are driving shipping companies to modernize their fleets. Since their delivery in 2011, both vessels have undergone operational changes, prompting the need for performance adjustments aligned with current use profiles.
With the integration of Wärtsilä Part Load Optimisation (WPLO), Intelligence Combustion Control (ICC), and Fuel Actuated Sackless Technology (FAST), a CII improvement of 5% is anticipated, equating to a 2-year extension of the CII rating.
Additionally, annual fuel savings of nearly 250 tons are estimated, resulting in potential cost savings of more than 150,000 US Dollars per year, and a reduction in CO2 emissions of approximately 780 tons per year per vessel.
“We continuously strive to operate our fleet in the most environmentally friendly and efficient manner possible,” said Capt. A. Akin Ozcorekci, DPA–OPR Manager at Ulusoy Sealines.
“These engine upgrades are very important to us, and we’re excited to deliver added value to our customers by combining our existing assets with state-of-the-art technology.”
Wärtsilä and Ulusoy Sealines have worked together for several years.
The delivery of the required parts and equipment for the two vessels – ULUSOY 11 and ULUSOY 12 – is scheduled to take place during the first half of 2025.
