Battery box

Always renewable energy on site

Battery Box - Emission-free energy storage and smart energy buffer

The Battery Box is a emission-free energy storage system on skid for locations where the electricity grid is deficient, where it is necessary to operate without diesel or where reliable energy buffer needed.
The Battery Box is used on construction sites, in infrastructure projects, temporary installations and grid-critical locations.

With quiet operation, flexible charging options and smart use as a buffer, the Battery Box is a fully-fledged alternative to diesel generators as well as a solution to grid congestion and peak load.

What is a Battery Box?

A Battery Box is a skid-mounted energy storage system which is easily installed on site. Unlike a diesel generator, the Battery Box supplies energy only when there is actual demand. This makes the system efficient, quiet and low-maintenance.

The Battery Box works with Lithium-iron phosphate (LFP) battery technology, known for its thermal stability, safety and long service life.

The Battery Box is designed for situations where:

  • no (or insufficient) grid connection available
  • emission-free operation is required
  • 100% emission-free
  • a temporary grid reinforcement is needed

The Battery Box as an energy buffer (peak shaving)

A key distinctive advantage of the Battery Box is its buffer function.
The Battery Box can handle peaks and support limited grid connection.

Examples:

  • Additional power can be supplied on a 3×25A building connection without grid reinforcement
  • When multiple installations are switched on simultaneously, the Battery Box prevents breakdowns
  • In case of grid congestion, the project remains operational

With this, the Battery Box acts as smart energy buffer offering stability, continuity and flexibility.

Customised advice on quotation
We help think through tender documents, technical memos and flow scenarios.

Simulations & scenarios
We provide forecasts, peak capacities and schedules to give your client insight into costs, savings and risks.

Proof-of-concept & demos
If required, we temporarily install a Battery Box for reference during the decision-making phase. This way, the client experiences the benefits immediately.

Technical integration in concept
Our trailers are plug-and-play and modular. In your concept presentation, you can easily refer to models with specific peak capacities (These peak capacities prove that Battery Trailer not only delivers continuous power, but can also handle short-term peak loads. Essential for e.g. pumps, cranes, rebar machines, etc.).

Why you should choose
an emission-free Battery Box?

Completely silent & emission-free

No noise, no smell, no emissions - you can work discreetly even in the middle of residential areas.

Directly operational

No digging, no connections. Plug and play, ready within 5-10 minutes.

Saving on diesel & maintenance

Count on structural savings through no diesel consumption, reduced servicing and logistics costs.

Reliability & monitoring

Live insight into power consumption, state of charge and prediction of remaining power.

Fast and easy charging

Charging at any regular EV charging station (type 2) always nearby and Power current (400V) on socket (230V)

Scalability & flexibility

You can dynamically deploy, combine or expand trailers as the load increases.

Applications of the Battery Box

The Battery Box is used for, among other things:

  • Construction sites and property maintenance
  • Infrastructure and rail projects
  • Temporary grid reinforcement and peak shaving
  • Grid congestion and grid-critical locations
  • Events and temporary installations
  • Construction equipment rental fleets
  • Developed for crane companies (diesel off, Battery Box on)

Charging and discharging

What makes the Battery Box unique?

  • Completely emission-free energy storage
  • Whisper-quiet in operation
  • Works efficiently under varying loads
  • No diesel, no fuel logistics
  • Less maintenance and fewer breakdowns
  • Suitable as energy buffer at peak load
  • Modularly deployable from 43 to 96 kWh
  • Developed for practical use in construction and civil engineering

Loading

The Battery Box can be charged via:

  • EV charging station (Type 2 AC)
  • 230 V mains connection
  • 400 V power current

This allows charging on site, at the yard or via public and private charging points.

Discharged

The Battery Box supplies power through the available connections, efficiently and stably, even at low or varying loads. Combined with the buffer function, the system remains reliable under varying conditions.

FAQ - your questions answered

How quiet is the trailer?
The noise production is 0!, employees immediately experience this as pleasant.

What does electricity cost per kWh compared to diesel?
Power costs on average €0.26 to €0.27. A Battery Trailer consumes power only when you ask for it. A diesel generator runs constantly for 8 to 9 hours a day. Compared to diesel generators, you also save on maintenance and transport costs.

How long can it run?
Depending on the type of Battery Trailer and the load: from one day to several weeks.

What about safety and maintenance?
Fully certified, compliant with PGS-1 legislation (statutory fire safety not to take effect until 2027) with monitoring (GPS), alarm systems and maintenance contracts through Battery Trailer.

Instant power on your construction site

Specialists in mobile battery solutions

Energy Infra is your reliable partner in emission-free construction. Together with leading clients and partners, we are working towards a future where diesel generators are a thing of the past.

Our mission is to make renewable energy accessible to anyone who needs temporary or mobile power. We combine technological innovation with practical applicability so that any organisation can easily switch to an emission-free power supply.

Get in touch or schedule a demo Make your next construction site work without emissions.

Photo of team battery trailer

Customisation choice & options

Check out the options or submit your personal requirements

Battery Box Eco Boost 43 kWh

With 43 kWh battery capacity, the Battery Box Eco Boost 43 kWh is a compact and efficient power solution for light to medium duty applications. Ideal for construction sites, temporary installations and situations where quiet, emission-free power is required.
  • Always reliable power on site
  • Compact and easily movable (skid-mounted)
  • Charging via EV charging station (Type 2), 230 V and 400 V
  • Emission-free and whisper-quiet

Battery Box Eco Flow 53 kWh

The Battery Box Eco Flow 53 kWh is a versatile all-rounder with extra capacity for longer deployment times. Suitable for construction, maintenance and temporary grid replacement where continuity and flexibility are important.
  • Reliable power for everyday use
  • Efficient under varying loads
  • Charging via EV charging station (Type 2) and mains connection
  • Quiet, emission-free and low-maintenance

Battery Box Eco Charge 62 kWh

With 62 kWh of battery capacity, the Battery Box Eco Charge 62 kWh offers extra security for projects with longer working days and higher energy requirements. Ideal for construction sites and infrastructure projects with limited grid capacity.
  • More capacity for long-term deployment
  • Suitable as temporary grid reinforcement
  • Charging via EV charging station (Type 2) and power current
  • Emission-free power without diesel

Battery Box Eco Advance 72 kWh

The Battery Box Eco Advance 72 kWh is designed for situations where extra buffer and operational reliability are required. This variant handles peak loads and supports locations with limited or unstable grid connections.
  • Strong energy buffer at peak load
  • Ideal for net congestion and peak shaving
  • Charging via EV charging station (Type 2), 230 V and 400 V
  • Quiet, clean and reliable

Battery Box Eco Force 81 kWh

The Battery Box Eco Force 81 kWh delivers power and continuity for heavier applications and higher power demand. Perfect for infrastructure projects, industrial applications and locations where reliability is crucial.
  • High capacity for heavy-duty installations
  • Stable current during intensive use
  • Charging via EV charging station (Type 2) and power current
  • Emission-free alternative to diesel generators

Battery Box Eco Max 96 kWh

The Battery Box Eco Max 96 kWh is the most powerful solution within the range and designed for large projects and grid-critical sites. This Battery Box combines maximum capacity with flexibility and reliability.
  • Strong energy buffer at peak load
  • Maximum uptime and energy buffer
  • Charging via EV charging station (Type 2), 230 V and 400 V
  • Completely emission-free and whisper-quiet

Experience stories from others

Some of Battery Trailer's satisfied customers

"Does what it needs to do, and it just works well"

According to contractor Gerben van de Ploeg, the Battery Trailer is a great asset. The entire chain fleet, the 10-tonne crane, power tools and the plasterers' pump ran on the Battery Trailer all week.
5/5
Gerben
Executive

Frequently asked questions

Find out more about how Battery Box works

1. What is a battery box?

A Battery Box is an emission-free skid-mounted energy storage unit that provides temporary power without a diesel generator. The unit is placed on site and can be moved by forklift or crane.

2. What is the difference between a battery box and a battery trailer?

A Battery Box is skid-mounted and intended for on-site placement. A Battery Trailer is on a trailer and suitable for road transport. Both provide silent, emission-free power.

3. What is a battery box used for?

Battery Boxes are used on construction sites, on infrastructure projects, temporary installations, grid-critical sites and in rentals, especially where silence and emission-free operation are important.

4. Is a battery box an alternative to a diesel generator?

Yes. For many light- to heavy-duty applications, a Battery Box can replace a diesel generator, with benefits in terms of emissions, noise and maintenance.

5. What battery box models are there?

The Battery Box is available in six variants:
Eco Boost 43 kWh, Eco Flow 53 kWh, Eco Charge 62 kWh, Eco Advance 72 kWh, Eco Force 81 kWh and Eco Max 96 kWh.

6. Which battery box model suits my application?

It depends on your energy requirements (kWh), peak load (kVA) and deployment duration. For shorter deployment, 43-53 kWh is suitable, for longer deployment or buffering 62-96 kWh.

7. Can a battery box be used as an energy buffer (peak shaving)?

Yes. A Battery Box can handle peak loads and support a limited grid connection, preventing outages and exceeding connection values.

8. Is a battery box suitable in case of grid congestion?

Yes. In locations where the grid provides insufficient capacity, a Battery Box provides additional power and continuity of operations.

9. How can I charge a battery box?

Charging can be done via an EV charging station (Type 2 AC) or via a mains connection (230 V or 400 V), depending on the configuration and available connection.

10. can a battery box charge and discharge at the same time?

Depending on the configuration, simultaneous charging and discharging is possible. This is particularly interesting in buffer and grid support applications.

11. How long can a battery box supply power?

It depends on consumption and capacity. At low load, a Battery Box can supply power for several hours to days.

12. Is a Battery Box quiet in use?

Yes. A Battery Box is whisper quiet and causes no noise pollution, making it suitable for inner-city locations and residential areas.

13. Is maintenance required on a Battery Box?

Maintenance is limited. There is no internal combustion engine, no oil, no filters and no fuel logistics like diesel generators.

14. What battery technology is used?

The Battery Box uses Lithium-Iron Phosphate (LFP) batteries, known for their safety, thermal stability and long life.

15. Can a Battery Box be placed outdoors?

Yes. The Battery Box is designed for outdoor use on construction sites and temporary locations, provided it is placed according to the instructions for use.

16. Is a Battery Box suitable for rental?

Yes. Its robust construction, easy operation and low maintenance requirements make the Battery Box very suitable for rental fleets.

17. Can I combine several Battery Boxes?

Yes. In some situations, several Battery Boxes can be used in parallel to achieve more capacity or power.

18. What happens in case of overload?

The system is protected and switches back or off automatically to prevent damage. This increases safety and reliability.

19. Are subsidies available for Battery Boxes?

In many cases, Battery Boxes are eligible for schemes such as SSEB and MIA/Vamil. We will be happy to advise you on what applies in your situation.

20. How quickly can a Battery Box be deployed?

A Battery Box is quick to deploy: install, connect and work. There is no fuel supply or start-up procedure as with diesel generators.

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