Sullom Voe Terminal (SVT)

Background

Sullom Voe Terminal (SVT) is approaching the end of its operational life, with production from the East of Shetland (EoS) pipelines expected to continue until 2027 (base case) to 2030 (extended).

As the facilities age and production rates decline significantly from initial levels, the terminal faces several challenges that are contributing to increasing operating costs per barrel processed.

Recognising the importance of reducing operational expenditure to more sustainable levels, the terminal owners, along with EnQuest as the Terminal Operator, have initiated the SVT Transformation Project. This project aims to identify the most effective path to sustain operations during the terminal's late life phase.

Scope overview

Nexos has been selected as the preferred contractor to engineer, fabricate, paint, outfit, and commission a modular package that will house an HV/LV switch room, control room, and battery room.

As part of the modular outfitting scope, we are responsible for the design of a custom HVAC system to maintain temperature control across all areas, ensuring effective cooling for equipment generating heat emissions over 60,000 watts.

The HVAC system design includes a bespoke package that delivers a mix of fresh and recirculated air throughout the module areas. Additionally, the system features an independent extract system for the UPS battery storage and charging stations, as well as extra cooling for the main LER housing the power distribution cabinets.

The HVAC design also addresses high heat dissipation from the equipment within the modules, incorporating a heat recovery system. This system captures and reuses the dispelled heat by transferring it back into the module during the winter months, while in summer, it is released to ambient. This approach provides a significant cost reduction by minimizing the need for mechanical heating, prolonging the lifespan of equipment, and reducing reliance on heating batteries.