Electricity on the wagon
The SWS-PowerBox® makes electricity from the wagon’s own motion
Innovation and sustainability for rail
The cold chain is the primary application. Beyond that, the system can be used for other cargo and applications that require energy directly on the wagon, such as tank containers with electric heating. The system comes in two variants based on the same principle: the Tower version for pocket wagons, the Underframe version for flat wagons.
“With SWS-PowerBox®, we provide environmentally friendly power supplies for wagons that work.”
VTG Wagon keeper · IntermodalNews, Sep 2024
“It is the only real sustainable way to transport reefer containers.”
Rail Innovators Group On power wagons built around SWS technology · RailFreight.com, Feb 2025
For more information about our products, we are always happy to hear from you.
Focused on transport and logistics
Beat Wegmüller
Laurin Schrammel
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Built locally, with partners who know their railways
Rail works differently in every market. We develop our systems in Austria and work with experienced local partners worldwide who adapt our technology to each market, build the PowerBox locally and provide on-site service.
Partnering across North America
North America is the largest rail freight market in the world, and the one place where the cold chain still moves almost entirely by road. Our partners on the ground know the market, its wagons and its operators.
HUSE LIVE
HUSE LIVE, part of Sujan Industries in Mumbai, is our partner for Indian rail: the SWS-PowerBox®, built in India, for Indian conditions.
Freightquip
Freightquip, an experienced rail technology partner with its own workshop equipment and shunting vehicles, brings the PowerBox to Australia and New Zealand and supports us with installation and service on the ground.
The SWS platform
Fleet, battery and cargo data are centralised and available in real time.
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What we have been up to
Customer workshop at LOCONI Intermodal in Warsaw
SWS at Manifest Vegas 2026: the cold chain meets North American logistics
Recognised as one of Austria's Top 10 startups
Advancing emission-free and autonomous energy solutions in rail freight.
CNA Innovation Prize 2023: the SWS-PowerBox® wins the Sustainability category
SWS-PowerBox® training at the port of Trieste
Series production of the Tower version begins
The PowerBox is in regular service across Europe, including on the Hamburg–Budapest, Oslo–Narvik and Wrocław–Koper routes, carrying a wide range of cargo. The first units have already covered 500,000 kilometres without major issues.
A reefer container requires around 3 kW on average. An 80 kWh PowerBox can therefore power it for approximately 27 hours. Actual consumption depends on the cargo, set temperature and humidity control. The container should already be pre-cooled when connected.
The PowerBox can be charged from the grid at up to 10 kW.
The wagon does not need to be modified. The installation stays within the loading gauge, G1 is maintained, and the wagon can operate without restrictions on the European rail network.
No specific training is required. The system is easy to operate and self-explanatory. We nevertheless recommend a short introduction for terminal staff.
SWS-PowerBox® Tower
1 × 24 V for additional wagon sensors
Parallel operation with up to 2 containers
Imprint
Humboldtgasse 12 /35
1100 Vienna
Austria
- Managing Director
- Patrick Sluga
- Business purpose
- Trading in goods of all kinds, in particular autonomous energy systems and related services, as well as services in the fields of automated data processing and information technology.
- Commercial register
- FN 542525 g, Regional Court for Civil Matters Graz
- VAT ID
- ATU76030439
- Chamber membership
- Austrian Economic Chambers (WKÖ)
- Applicable legislation
- Austrian Trade Regulation Act, ris.bka.gv.at
- Supervisory authority
- Municipal Authority of Graz, in accordance with the E-Commerce Act
You are welcome to address any complaint directly to the e-mail address above.
Terms and conditions
Our general terms and conditions apply to every offer, delivery and service. They cover scope, prices and payment, delivery and transfer of risk, warranty and liability, retention of title, and the place of jurisdiction.
The binding, signed version is the PDF below.
Download the general terms and conditions (PDF)Privacy policy
The protection of your personal data matters to us. Personal data is treated in strict confidence and used only for the purposes you have requested. We process your data exclusively on the basis of the statutory provisions (GDPR, TKG 2021). Below we explain the most important aspects of data processing on this website.
Visiting our website
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Contacting us
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Honeypot
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Your rights
With regard to the data we hold about you, you have the right to information, correction, deletion, restriction, data portability, revocation and objection. If you believe that the processing of your data breaches data protection law, or that your data protection rights have been infringed in any other way, you can complain to us at office@sws-ps.com or to the Austrian data protection authority.