STX Unveils Scalable Offshore Substation

STX has launched the SeeOs – a Scalable Efficient Evolutive Offshore Station described as a turnkey solution to the offshore wind market that will reduce energy costs by decreasing delivery time and saving CAPEX and OPEX costs.

Thanks to its modularity, SeeOs can accommodate any power requirement, from 200 to 900MW, and can be installed on monopile, jacket or floating foundations depending on the site, STX said.

The base module design is a fully enclosed 200/300MW unit which accommodates any OEM MV GIS, transformer, and HV GIS.

Two or three of the base modules can be combined to meet any power requirement up to 900MW, the company said.

In addition to scalability, SeeOs can also be customized to fulfill specific client preferences, maintenance strategies, local regulations requirements and installation site distance to shore. These client-specific requirements, such as shunt reactors, harmonic filters, back-up generators, living quarters, workshops or warehouses, will be implemented as add-ons to the base module.

STX added that the design of the SeeOs decreases delivery time by 20%, reduces project CAPEX costs by 20%, and optimizes operations and maintenance costs up to 20%.

These efficiency gains are a result of the standardized design which uses 80% common features across all modules.

With a view beyond the present market, SeeOs has been designed to accommodate the latest technological developments such as 66kV, future environmental evolutions, and the floating offshore wind market.

Frédéric Grizaud, Head of Offshore Energy Business Unit at STX, said: ”Based on our experience and in-depth analysis of every design and client’s specifications on the market, we gathered the common requirements and created a scalable and evolutive product. In this fast moving environment, SeeOs is the electric transmission solution for offshore energy of the 2020s. This solution will offer our customers higher flexibility and operations reliability, while at the same time reducing their costs.”