Industrial generators up to 150 kVA

Silent and without exhaust fumes

Green Energy. Anywhere. Anytime.

More power and lower costs than diesel generators

Welcome to emost Butler, your ultimate solution for reliable and cost-efficient power supply on an industrial scale. We understand that every company has unique requirements. With our free practical test, we would like to give you the opportunity to experience the performance of the emost Butler S or M for yourself.

Butler S 50/25

The emost Butler S is a compact energy storage system with a rated output of 50 kVA and a battery capacity of 25 kWh. Ideal for versatile applications such as construction sites, events and temporary use. The Butler S offers emission-free, quiet and reliable energy without fuel consumption.

The most important key figures

  • Charging time (full charge): < 4.5h

  • Weight: 660 kg (excl. trailer)

  • (L x W x H): 1480 x 820 x 1105 mm

Optional features

  • emost trailer

Butler M 150/150

If your requirements are greater, we recommend the emost Butler M. With a rated output of up to 150 kVA and a battery capacity of 150 kWh, it is the ideal choice for larger systems and industrial applications. The Butler M impresses with its emission-free and noiseless operation.

The most important key figures

  • Charging time (full charge): < 4.5h

  • Weight: < 3.000 Kg (excl. trailer)

  • (L x W x H): 2500 x 1120 x 1650 mm

Optional features

  • emost trailer

The emost butler for your usecase

Imagine if you could have electricity exactly when and where you need it – without noise, without exhaust fumes, and without the complicated logistics problems of conventional generators. The emost Butler does just that and revolutionizes the way you use energy.

  • Construction projects: Putting an end to noise and environmental problems on construction sites. The emost Butler provides you with reliable energy without your employees having to wear hearing protection.

  • Events: Experience events without the disturbing noise of diesel generators. The emost Butler ensures a smooth power supply without disturbing your guests.

  • Mobile charging stations: For car-sharing services or e-bike rental stations, the emost Butler offers a flexible and environmentally friendly power supply that can be easily adapted to changing locations.

  • Emergency and disaster operations: A reliable energy supply is essential in critical situations. The emost Butler ensures that you can access power in any scenario.

  • Industrial applications: From large-scale industrial projects to temporary construction sites, the emost Butler provides an efficient and environmentally friendly source of energy.

  • Tunnel construction: Protect the health of your employees in tunnel construction. The emost Butler not only ensures a reliable power source, but also clean air to breathe.

Your challenges are unique, and emost Butler is dedicated to providing customized solutions. Find out more about the many possible applications and experience the difference – test the emost Butler now free of charge.

Cost comparison over an 8-year investment horizon.

Cost types

The first diagram illustrates the cost development over 8 years by type of cost. This includes the acquisition costs, operating costs and maintenance costs. We assume that 9,450 kWh are actually used per year. This corresponds to a consumption of 7 liters of diesel per hour, 8 hours a day, 5 days a week and 25 weeks a year with an efficiency of 0.9, i.e. 9 kWh per liter of diesel, of which 15% is effectively used.

Butler S vs. 50 kVA diesel generator

Cost trend

The second diagram shows the annual cost development over 8 years. With our assumed parameters, the break-even point is after 3.31 years. Over a period of 8 years, you will save just under €57,000 with the Butler S. In addition, you reduce your CO2 consumption by 14.5 tons and your employees can enjoy clean air and a pleasant background noise level.

Break-even after 3 years

By the way: In our scenario, the use of the emost Butler saves around 18 tons of CO2 per year compared to the diesel generator. This corresponds to a CO2 saving of 144 tons over 8 years!

The costs at a glance: Diesel generator vs. emost Butler

When deciding on a reliable energy supply on an industrial scale, it is not only performance and efficiency that play a role, but also the total costs over the service life. Here we compare the costs of a conventional diesel generator with our innovative emost Butler.

Parameters and assumptions made in the scenario

All costs in comparison
  1. The price per kWh is 25 cents.
  2. The diesel price per liter is € 1.90
  3. The efficiency of a diesel generator is 0.9, i.e. the generator produces 9 kWh from one liter of diesel.
  4. 15% of the energy generated by the diesel generator is used. Why so little?
  5. The consumption of the diesel generator is 7 liters per hour at 50% load, which we assume to be the average.
  6. The generator is operated 8 hours a day.
  7. We assume that the generator will be used for 25 weeks a year.
  8. The maintenance costs of the diesel generator include oil consumption, spare parts stocks (wearing parts such as oil filters) and repairs. We assume this to be 5% of the purchase price per year.
  9. We assume a useful life of 8 years.

Why is the utilized energy of the diesel generator only 15%?

Imagine operating a construction site with a crane that operates for a short period every 10 minutes. However, the diesel generator that supplies the energy must run continuously in order to be ready for each of these short phases. Even though the crane only sporadically requires energy, the diesel generator continuously generates electricity. This discrepancy between the energy actually used and the energy permanently generated means that only around 15% of the energy generated is actually used. This loss of efficiency is amplified because the connected end devices never fully absorb all the energy generated by the diesel generator, but often only require a fraction. This illustrates why the emost Butler, which supplies energy efficiently and on demand, is a more cost-effective solution.

Test it for free!

Experience the revolutionary performance of the emost Butler up close by testing it for free. No commitments, no hidden costs. Simply fill out the form, and we will get in touch with you promptly.

Which product would you like to test?
Would you like to potentially buy or rent?