More power, less diesel.
for maximum efficiency and minimum costs.
Independent from the grid.
Ideally suited for construction sites, events, remote off-grid locations, or as an emergency power solution. Our mobile storage systems deliver clean energy—silent, reliable, emission-free.
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Compact, powerful, and ready for immediate use: emost Butler S 50/25 delivers 50 kVA of power and 25 kWh of storage capacity – no transport permit required. Perfect for fast and flexible deployment.
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Maximum power for the highest demands: emost Butler M 150/150 combines 150 kVA of power with 150 kWh of storage capacity – the ideal solution for energy-intensive applications in construction, events, industry, and other sectors.
More InformationRHK Mobilenergy Solutions GmbH, headquartered in Vienna, Austria, and part of the RHK Group, is developing the market for mobile energy storage in Central Europe. Our innovative energy storage solutions will gradually replace traditional mobile diesel generators, offering numerous advantages in efficiency, mobility, and sustainability.
Applications
emost Butler is a versatile mobile power solution used across a wide range of industries and use cases.
On construction sites or in temporary facilities such as mobile offices or event tents, Butler delivers reliable power anywhere. In the transport sector, it guarantees stable power supply where conventional grids are unavailable.
In emergency situations, film and television production, and events, emost Butler proves itself as an efficient, zero-emission energy source.
Even in hard-to-reach regions—for example, during disaster relief operations or in agriculture on remote fields—it provides indispensable support.
In addition, cities, municipalities, and landscaping businesses benefit from its flexible and instantly available power supply.
emost Butler S and M models impress with their high mobility and provide on-demand power supply. For example, Butler S can be transported on a trailer with only a category B driving license!
Clean and silent energy independent of the grid? With Butler models, you get not only innovative technology but also a guarantee of a reliable, always-ready energy solution. Simple. Efficient. Sustainable.
Life Cycle Costing (LCC) analysis clearly shows: Butler models are more economical to operate than diesel generators. They require no expensive fuel, electricity—especially from your own photovoltaic system—is significantly cheaper, and maintenance costs are substantially lower.
Reliable power supply where the conventional grid is unavailable or insufficient.
We successfully use emost Butler S in a residential area, where strict noise regulations and the lack of 63A/400V connections create challenges. This mobile battery generator reliably and silently powers our mobile crane. With 25 kWh capacity, it provides energy for an entire workday in off-grid mode.
As a JoLa Rent team member, I'm excited to share how successfully emost Butler S has been integrated into our film and TV equipment fleet. It powered not only a wide range of makeup and wardrobe vehicles, but also our generators, mobile dressing rooms, Sprinter vans, and various needs of our film crew.
emost Butler S has fundamentally transformed our construction projects. As a building contractor, I was initially skeptical, but after using it on several construction sites, I'm fully convinced. No noise, no exhaust fumes, and always reliable power supply are just some of the benefits.
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