AET names world’s cleanest DP shuttle tankers

Malcolm Latarche

Malcolm Latarche · 17 October 2019


Two of the world’s cleanest shuttle tankers have been named at Samsung Heavy Industries’ yard in Geoje.

Eagle Blane and Eagle Balder have been constructed for AET Sea Shuttle (AETSS), a joint venture between Norwegian shipping company ADS Shipping and AET Tankers headquartered in Singapore, as the owner and commercial operator of the vessels. Project management for the newbuilds was provided by MISC Group's marine services arm Eaglestar and Norwegian third-party ship management company, OSM Maritime. When completed they will serve on long-term charter to Norway's Equinor.


The sister twin-skeg 123,100dwt Dynamic Positioning Shuttle Tankers (DPSTs) each have a pair of WinGD 6X62DF dual fuel engines using LNG as primary fuel and will also be able to capture 100% of the harmful Volatile Organic Compounds (VOC) which escape into the air from crude oil cargoes during loading and voyage for reuse as a supplementary fuel. The LNG fuel system, VOC recovery plant, VOC fuel tank and fuel mixing unit were supplied by Wärtsilä along with the ships’ auxiliary 9L34DF engines.

The vessels are claimed as the cleanest DPSTs ever built. They will emit 40-48% less carbon than equivalent vessels built in 2008, meeting the International Maritime Organization's (IMO) target of reducing CO2 emissions by 40% against 2008 baselines by 2030, and halving CO2 emissions by 2050. They also emit 85% less SOx, 98% less NOx, 98% less particulate matter and 93% less black carbon particulates than DPSTs burning conventional fuel.

Utilising a more efficient system for dynamic positioning combined with the LNG Dual-Fuel and VOC Recovery Systems, the vessels will save up to an estimated 3,000 tonnes of fuel per year compared with conventional DPSTs of the same size.

Capt. Rajalingam Subramaniam, AET President & CEO and Chairman of AETSS said, "These vessels are proof that environmental sustainability and commercial viability can coexist and are also testament to the fact that operational performance does not have to be sacrificed in the pursuit of reducing emissions. The goal was always to leverage our combined experience of AET, ADS and SHI to develop vessels that really push the boundaries in what is possible in North Sea dynamic positioning operations, and to prove the value of LNG Dual-Fuel solutions in the energy shipping segment."

Commenting at the naming ceremony, Lady Sponsor, Ann-Elisabeth Serck-Hanssen, Senior Vice President for Asset Management in Marketing, Midstream and Processing, Equinor, said, "Taking these vessels on a long-term contract will further enhance our ability to provide safe, efficient and cost competitive energy for our customers, and we are proud to play our part in what is an important step forward in the development of more sustainable energy shipping solutions."

ADS Shipping Chairman, Bjørn Tore Larsen commented, "Eagle Blane and Eagle Balder have surpassed our expectations, and vessels will provide Equinor with even greater operational flexibility and control and set a new benchmark for shuttle tanking operations. We look forward to the next stage when these ships begin their work, in our further strengthening of the relationship between Equinor, AET and ADS. Our sister company, OSM Maritime are looking forward to managing these vessels from their OSM Ship Management office in Arendal, Norway."

Yee Yang Chien, MISC President/Group CEO and AET Chairman added, "As partners in this venture, we all shared an aspiration to significantly reduce the environmental footprint of our supply chains while ensuring stable and reliable access to energy now and into the future. We are confident that these LNG Dual-Fuel Shuttle Tankers will be the first of many more used by the offshore industry, and I must thank everyone involved for helping to bring this project to life."​

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