Acta Marine has taken delivery of Acta Pegasus, a new offshore wind support vessel designed to operate with methanol-ready dual-fuel propulsion and onboard battery systems.

Built on Ulstein’s SX216 platform, the vessel incorporates the designer’s Twin X-Stern hull form, which is intended to improve station-keeping performance, manoeuvrability and fuel efficiency during offshore operations. The hull configuration is also designed to reduce motion and underwater noise compared with more conventional layouts.

Acta Pegasus is equipped with dual-fuel engines capable of running on marine gas oil (MGO) or blends containing methanol, providing flexibility as lower-emission fuels become more widely available.

In addition, battery energy storage has been integrated into the vessel’s power system to support peak shaving and optimise engine loading, thereby reducing fuel consumption and emissions.

The vessel has been configured to support offshore wind projects in France. It is fitted with a 3D motion-compensated gangway and crane to enable the safe transfer of personnel and cargo between the vessel and the turbine or platform. This walk-to-work (W2W) capability is intended to support commissioning, operations and maintenance activities at offshore wind sites.

Acta Pegasus can accommodate up to 135 people and features a restaurant, lounges, a sauna, a gym, and Wi-Fi connectivity.

Acta Pegasus is the first of a series of vessels ordered by Acta Marine on the SX216 design. Three sister vessels, Acta Hercules, Acta Gemini and Acta Aquarius, are scheduled to enter service during 2026 as part of the company’s wider fleet renewal programme.