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Siemens provides a range of prefabricated substations that are equally suited for either temporary or permanent use in challenging grid expansion and maintenance programs.
“Plug and play” substations
High-voltage E-houses, skids, and mobile substations up to 420 kV from Siemens are proven power supply problem solvers in numerous utility and industry applications that demand extra flexibility and speed.
Siemens’ portable power solutions consist of self-contained “plug and play” switching stations built as fully mobile substation on a trailer, a skid, or inside a shelter as an “E-house”.
The modules contain all components for a complete substation, from the power transformer and AIS or GIS switchgear to medium- and high-voltage cables, protection, monitoring and control systems, and auxiliary AC and DC power supplies.
Siemens portable power solutions offer various benefits that help save considerable amounts of time and capital expenditures in different applications.
Siemens portable power solutions transfer a large amount of site work to the factory environment. This way, the prefabricated substations can bring time savings of up to 30% in substation construction. They also reduce the risk exposure significantly thanks to:
Advantages of portable power solutions
Siemens portable power solutions are the versatile temporary or permanent answer for challenging grid expansion and back-up cases
Siemens portable power solutions can increase the resiliency of a power grid and help ensure uninterrupted service. They provide a quick and efficient solution for the emergency restoration of power in the case of equipment failure.
They can also serve as a temporary bypass substation to enable major maintenance or refurbishment programs to be carried out in an optimized manner. Moreover, they are an ideal backup to enable quick grid reinforcement when it comes to handling seasonal peak loads or fast grid extensions.
Focusing on the earliest possible startup date despite extreme environments and severe work conditions, energy intensive industries, such as oil and gas, metals, mining, chemicals, and semiconductors, are extensively relying on "plug and play" modules to build their plants.
Siemens’ highly reliable single-lift or modular prefabricated substations are entirely tested prior to shipment. They provide added value by shortening and simplifying site works considerably, this way ensuring the earliest possible plant energization date.
Power generation of any size aims at an early and uninterrupted generation process during the entire life of the power plant. This calls for quick and reliable grid connection wherever a power plant may be located – a factor that becomes increasingly important with the growing amount of renewables-based power generation.
In such cases, Siemens portable power solutions offer permanent time savings. They also serve as an optimal temporary backup and are an efficient alternative to securing reliable operation on the basis of equipment redundancy.
Trailer-mounted substations are mainly designed for temporary use whenever fast deployment is essential. They provide maximum flexibility and comprise one or several compact modules, e.g. power transformer, high- or medium-voltage switchgear, cables, control, communication, and protection equipment, monitoring, and auxiliary power systems.
The trailer’s external dimensions comply with local road transportation restrictions, its base-frame protects the electrical equipment from mechanical stress during transport.
E-houses are the preferred solution for permanent deployment, particularly in challenging environments where risks need to be minimized. The plug-and-play e-houses are complete substations that come pre-wired and factory tested, this way drastically reducing necessary on-site work. The single-lift steel-frame construction with a protective shelter comprises switchgear as well as secondary and auxiliary systems in one or more modules for on-site assembly. All standard switchgear configurations, such as single or double busbar, ring, and one and a half breaker, are available.
Depending on voltage level and transportation restrictions, the E-house can be fitted with a built-in overhead crane or removable roof to simplify maintenance work.
Skid-mounted substations can be used for temporary as well as for permanent use. They are very similar to E-houses but come without a protective shelter. They can also be equipped with power transformers, this way making for a fully pre-wired and pre-commissioned solution.
The design of skid-mounted substations provides considerable flexibility in the connection of overhead lines.
Siemens’ portable power solutions have proven their potential as a powerful problem solver in many projects around the globe. Here’s an overview of some particularly interesting cases.
Portable power solution replaced originally planned substation with air-insulated switchgear.
Gas-insulated switchgear was safely mounted and transported on a trailer.
Grid connection performed three months earlier than originally planned.
Heavy civil works for substation extension in a residential area avoided.
Prefabricated single-lift “plug and play” substation with switchgear, control panels, and building technology.
Duration of on-site works reduced by more than 50%, project execution about 2.5 months faster.
Major urban substation refurbishement scheme for several years to come.
Customized, mobile 5-bay E-house solution deployed to bypass an entire substation.
E-house can be installed without crane.
Innovative solution including one of the world’s biggest transformers ever supplied for a mobile system.
Utility can autonomously restore grid service in less than a week if high-voltage equipment fails in a substation.
Considerable improvement of power infrastructure resilience
If you want to know more about the advantages of Siemens portable power solutions, the Siemens Customer Support Center will make sure that your individual questions are answered in a quick and exhaustive manner.