Swiss-engineered mobile battery generators delivering 50–150 kVA of clean, silent power. Replace diesel generators on construction sites, events, and critical infrastructure — no permits, no emissions, no noise.
No diesel, no exhaust, no COâ‚‚. Clean energy for every application.
No noise permits needed. Work day or night without restrictions.
No grid connection permits. Trailer-mounted and ready to go.
Find the right mobile battery system for your project
Not sure which Butler you need?
Answer 3 quick questions50 kVA / 25 kWh
Perfect for small–medium construction sites, events, and grid boosting. Trailer-mounted at just 660 kg.
View specifications150 kVA / 150 kWh
For large construction projects, industrial applications, and emergency backup power. Under 3,000 kg.
View specificationsConnection Unit
Connect multiple Butler S units to scale power and capacity. Achieve up to 125A via Powerlock output.
Learn moreGet in touch to learn more about our Butler systems and pricing