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AET unveils pioneering LNG-fuelled tankers

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AET has named its newest vessels, two of the world’s first LNG dual-fuel dynamic positioning shuttle tankers (DPSTs).

The vessels, the cleanest DPSTs ever built, will emit 40 – 48% less carbon than equivalent vessels built in 2008, meeting the International Maritime Organization (IMO)’s target of reducing CO2 emissions by 40% against 2008 baselines by 2030, and halving CO2 emissions by 2050.

These LNG dual-fuel DPSTs also emit 85% less SOx, 98% less NOx, 98% less particulate matter, and 93% less black carbon particulates than DPSTs burning conventional fuel.

The sister twin-skeg 123 100 dwt shuttle tankers, Eagle Blane and Eagle Balder, were unveiled at a naming ceremony held at the Samsung Heavy Industries (SHI) Geoje Shipyard, South Korea.

The vessels will serve Norwegian energy company Equinor on long-term charter for operations both in oilfields on the Norwegian Continental Shelf of the North Sea, Norwegian Sea and the southern Barents Sea, as well as on the UK Continental Shelf.

Powered using LNG as their primary fuel, the LNG DPSTs 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.

Utilising a more efficient system for dynamic positioning (the activity of ensuring the vessel remains stationary above a specified area of seabed while loading oil at sea), combined with the LNG dual-fuelling and VOC recovery systems, these vessels will save up to an estimated 3000 tpy of fuel compared with conventional DPSTs of the same size.

The vessels have been constructed by SHI, for AET Sea Shuttle AS (AETSS), a joint venture between Norwegian shipping company ADS Shipping and AET Tankers, 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.

Captain 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.”

The twin DPSTs will be propelled by two low pressure dual-fuel two-stroke engines, which fulfil the IMO’s Tier III emissions requirements in gas mode without any exhaust gas after-treatment required.

Designed for operations in the Norwegian, North and Barents Seas, these DPSTs are equipped with the latest generation of bow loading system and shaft generator with DC switchboard.

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.”

Read the article online at: https://www.lngindustry.com/liquid-natural-gas/16102019/aet-unveils-pioneering-lng-fuelled-tankers/

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