Everllence LNG dual-fuel engines to power six chemical tankers built at Pipavav

Swan Defence and Heavy Industries Limited (SDHI) has selected Everllence two-stroke, dual-fuel engines for six chemical tankers it will build at Pipavav, Gujarat, for Norwegian shipowner Rederiet Stenersen AS. Japan’s Mitsui E&S will manufacture the engines under licence for the 18,000-deadweight-tonne (dwt) vessels, which are designed for Northern European service. The propulsion order, announced on 10 and 11 November 2026 by Mitsui E&S and Everllence respectively, covers engines capable of running on liquefied natural gas (LNG).

Mitsui E&S will supply six Everllence B&W 6S50ME-C9.7-GI-EGRBP engines. The two-stroke ME-GI design injects gas at high pressure and uses a small quantity of pilot fuel oil to initiate combustion in gas mode. The dual-fuel configuration allows the engine to operate on either gas or conventional liquid fuel.

Everllence said the first vessel’s engine will use exhaust gas recirculation to meet International Maritime Organization (IMO) Tier III limits on nitrogen oxide emissions. Its propulsion specification also includes a controllable-pitch propeller, which allows the blade angle to be adjusted during operation. Tier III limits apply to qualifying ships operating in designated nitrogen oxide emission control areas, including the Baltic Sea and North Sea.

SDHI announced the US$227 million shipbuilding contract in January 2026, following a letter of intent signed with Stenersen in November 2025. The contract covers six firm vessels and includes an option for six additional sister ships. At signing, SDHI said the first tanker was scheduled for delivery within 33 months, with subsequent vessels to follow at regular intervals.

This story was originally published by Maritime Gateway. Read the full story at Maritime Gateway →