Smart battery with Dutch software
Can be installed in any room
No more negative energy hours
Take control of your energy usage

Most commonly used by

Agricultural Industrial parks Energy cooperatives Industry Charging infrastructure Logistics real estate
Get the BOLT-241 brochure

BOLT-241

The battery for the Flex-e subsidy of up to 40%

The BOLT-241 is the ideal entry-level battery storage solution for businesses that want to take advantage of the Flex-e program without a complicated process. With 49 kWh or 99 kWh of capacity, you can immediately create flexibility within your existing connection and avoid grid constraints.

Specially designed for applications under 100 kW, allowing you to take advantage of subsidies without the complexity of larger installations. For systems below this threshold, no congestion management contract is required, which makes the process significantly simpler.

The BOLT-241 is compact, scalable, and ready to use right away. You can easily start with 1 x 99 kWh or 1 to 2 x 49 kWh, depending on your situation and energy needs.

  • Up to 40% subsidy through the Flex-e program
  • No complex process or network upgrades required
  • Can be applied immediately in the event of grid congestion
  • Compact, scalable, and quick to implement
  • Suitable for storage, peak shaving, and energy management
Key specifications
Battery capacity

The amount of energy a single battery can store and deliver. Scalable to any size.

49–99 kWh
Rated output power (kW)

The maximum power per unit.

50–100 kW
Dimensions (LxWxH)

The external dimensions of the container, in millimeters.

1900 x 1330 x 2100
Weight

The total weight of the unit, including internal components.

Approx. 2,800 kg
View all specifications

Discover the BOLT-241

Using energy wisely when it counts

Additional capacity during peak periods

Intelligent control without manual intervention

Growing along with your energy needs

Built for everyday use

FLEX-E GRANT & BOLT-241

More and more companies are facing grid congestion. The Flex-e program was established to help resolve this issue more quickly by encouraging flexible energy use. With this subsidy, you can receive reimbursement for up to 40% of the costs associated with measures that make your energy consumption smarter and more flexible, such as battery storage.

When are you eligible?

The program is intended for companies that:

  • Have a high-volume connection
  • Located in an area with grid congestion
  • Want to create flexibility within their existing connection

That's handy! For systems under 100 kW, a simpler process applies, without a mandatory congestion management contract. 

Download the Flex-e brochure

DOWNLOAD THE FLEX-E GRANT BROCHURE

Everything you need to know about the Flex-e subsidy and battery storage

Would you like to take advantage of the Flex-e subsidy (up to 40%) and immediately increase flexibility within your existing grid connection? In this brochure, you’ll discover how the BOLT-241 lets you effectively manage grid congestion without a complex process or a large investment.

  • Explanation of the Flex-e program and its terms and conditions
  • How to Take Advantage of Up to 40% in Subsidies for Battery Storage
  • Practical applications such as peak shaving and energy management
  • Which companies would find this particularly relevant (SMEs, logistics, agriculture, charging infrastructure)
  • How to get started quickly without overloading the network

Request the brochure now

Download the brochure

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Battery + Flex-e in 4 steps

1

QUICK CHECK & OVERVIEW

We assess your current situation: grid connection, energy consumption, and issues such as grid congestion.

  • Immediate insight into where you are losing or lacking capacity
2

GRANT CHECK & BUSINESS CASE

We'll calculate the return on investment for the BOLT-241 and determine whether you're eligible for the Flex-e subsidy.

  • A clear overview of savings, revenue, and investment (including subsidies)
3

Installation and connection

The BOLT-241 is installed and connected to your existing system. No major modifications are required, so you can be up and running quickly.

  • Ready to use right away within your current system
4

Insights and automated control

The software lets you see exactly what's happening. Storage, consumption, and control are optimized in real time.

  • Take control of your energy without having to keep an eye on it

The solution to grid congestion

The power grid will remain under strain for the time being. That won’t change overnight. What you can do, however, is create flexibility within your current connection.

With the BOLT-241, you have local power whenever you need it—without having to rely on grid expansion. That gives you peace of mind. And control.

WHY WE DO THINGS DIFFERENTLY AT BOLTAINER

“Many companies think they have to wait for the grid. But in practice, you can often take steps within your existing connection. If you approach it smartly, opportunities open up that didn’t seem to exist at first.”

Orlando Founder of Boltainer

INSTANT POWER DURING PEAKS

When your usage increases, the BOLT-241 immediately provides additional capacity. This helps you avoid exceeding your limits and stay within your service plan’s limits.

SMART ENERGY MANAGEMENT

The battery is automatically controlled by our entirely Dutch-developed EMS software. This is based on consumption, generation, and grid load. As a result, you use energy at the times when it is most cost-effective.

MORE CONTROL, LESS DEPENDENCE

You create flexibility within your own connection without having to wait for network upgrades. This provides certainty and makes growth possible again.

Smart energy storage, built for maximum performance

SCALABLE

The BOLT-241 has a modular design and easily scales to meet your energy needs. This allows you to remain flexible without having to make a major investment right away.
Your immediate benefit:

  • Easy to expand
  • Tailored to your growth

Safety

The BOLT-241 is equipped with integrated safety systems and complies with applicable safety standards.

Your immediate benefit:

  • Novec fire suppression system
  • In accordance with PGS-37-1 and IEC guidelines

ENERGY MANAGEMENT

The EMS system automatically manages consumption, storage, and peak loads. This allows you to get more out of your energy without manual intervention.
Your immediate benefit:

  • Real-time monitoring & monitoring
  • Smart load management during peak demand

LONG SERVICE LIFE

Featuring LFP technology and rugged components, the BOLT-241 is built for long-term use.

Your immediate benefit:

  • Up to 15 years of reliable operation
  • Low maintenance requirements

CUSTOMERS ON THEIR RESULTS WITH BOLTAINER

Fleet & Equipment Manager Construction company

"We need far fewer diesel generators on the construction site. Combined with battery storage, we now always have a reliable and sustainable power supply, no matter where we're working."

Farmer Dairy farmer

"Our solar panels are really paying off now! With Boltainer batteries and BBT software, we use our own electricity whenever it suits us and save a lot on feed-in tariffs."

Facilities Manager Industrial sector

"Thanks to Boltainer, we've reduced our energy costs by over 30% and are no longer subject to grid restrictions. Our production is running more efficiently than ever!"

PEACE OF MIND THANKS TO RECOGNIZED CERTIFICATIONS

IEC 62933-5-2

An international standard that ensures the safety and reliability of energy storage systems.

PGS-37-1

Dutch guideline with strict requirements for fire safety and risk management.

THEY SEE THE RESULTS

"We are now much less dependent on the grid. Thanks to the BOLT-215, we have control over our energy consumption and costs. The solar energy we generate is no longer wasted, but is used intelligently when it truly benefits us. This provides both security and immediate financial returns."

The results so far:

  • Peak demand has been structurally reduced
  • Making the most of solar energy
  • Energy costs significantly reduced
  • Real-time insights with BBox software
View the case study

SPECIFICATIONS

AC PARAMETERS (POWER CONNECTED)

Rated power (kW)

The maximum continuous power output of the system.

50 kW or 100 kW
Mains voltage range

The voltage range within which the battery operates safely and stably.

15%
Power frequency range (Hz)

The frequency range within which the system may remain connected.

2
DC component

The constant, unchanging component of an electrical signal

<0.5%In
Power factor

Adjustable power factor range

1 (lead) to 1 (lag)
Tension

Type of system power connection (e.g., 3-phase, 4-wire).

3W+N+PE, 380
Nominal grid frequency

The standard frequency of the grid with which the system is synchronized.

50 Hz
Current waveform distortion rate

Degree of distortion in the supplied current; indicates power quality.

<3%(Rated voltage)
Power factor
>0.99 (Rated voltage)
Overload capacity

The ability to temporarily handle additional load beyond the rated maximum.

110% Long-term

AC PARAMETERS (off-grid)

Rated power (kW)

The maximum continuous power output of the system.

50 kW or 100 kW
Tension

Type of system power connection (e.g., 3-phase, 4-wire).

3W+N+PE, 380
Nominal grid frequency

The standard frequency of the grid with which the system is synchronized.

50 Hz
Current waveform distortion rate

Degree of distortion in the supplied current; indicates power quality.

<3%(Linear Load)
Overload capacity

The ability to temporarily handle additional load beyond the rated maximum.

110% Long-term

BATTERY (LITHIUM IRON PHOSPHATE)

Energy per module

x

49–99 kWh
Total storage capacity

How much energy a single battery module stores.

49–99 kWh
Fire suppression system

Type of integrated fire prevention system.

NOVEC
Number of modules

The number of battery modules in the system.

1
Air conditioning

System for active battery cooling and heating.

Cooling and heating
Number of charge cycles

How many times the battery can be charged and discharged (lifespan).

≥6000

BASIC PARAMETERS

Dimensions LxWxH

The external dimensions of the container, in millimeters.

1686 x 1330 x 2100
Insulated transformer

Optional internal transformer for electrical isolation.

Optional
IP rating

Degree of protection against dust and water.

Outdoor IP55
Relative humidity

Permissible humidity without condensation.

0–95% (no condensation)
Maximum working height (m)

The maximum altitude at which the system operates efficiently.

4000 (2000 derating)
Communication

Physical interfaces for data communication with other systems.

RS-485, CAN, LAN
Weight

The total weight of the system, including battery modules.

approximately 2,500 kg
Power outage
-
Operating temperature

The temperature range within which the system operates stably.

-20 to 55°C (derating above 45°C)
Cooling

The method used to thermally control the system (e.g., smart air cooling).

Smart Air Cooling
Display

Type of system information and control screen.

Touchscreen
Communication Protocol

Supported data exchange protocols.

Modbus RTU, Modbus TCP, CAN 2.0B

WHO IS THE BOLT-241 FOR?

AGRICULTURAL

For business owners who want to make better use of the energy they generate. With the BOLT-241, you can prevent electricity from being fed back into the grid at inopportune times.

  • Getting More Out of Solar Energy
Read more

SMEs & COMPANIES

For businesses that are growing but are reaching the limits of their current connection. The BOLT-241 helps create more capacity without immediately increasing costs.

  • Maximum control over locally generated energy
Read more

Charging infrastructure

For locations with charging stations where peak loads pose a challenge. The BOLT-241 provides temporary extra power when needed.

  • More charging capacity without overloading the grid
Read more

Industry

For businesses focused on operational continuity and cost control. With the BOLT-241, you stay in control during peak periods.

  • Cost control and legal certainty
Read more

FREQUENTLY ASKED QUESTIONS

Can't find your question here? Please contact us.

How long does it take to install the BOLT-241?

The BOLT-241 is usually available directly from stock. If the battery is temporarily out of stock, please allow 4 to 8 weeks for delivery. Following a no-obligation consultation and site visit, we’ll schedule the installation quickly and efficiently so you can start reaping the benefits of your investment as soon as possible.

What is the difference between the BOLT-241 and larger systems?

The BOLT-241 features the same technology and functionality, but has a smaller capacity. As a result, the system can be implemented more quickly and is often easier to use.

How do I determine whether 49 kWh or 99 kWh is the right choice?

That depends on your usage, peak loads, and application. In practice, this is calculated in advance so that you don’t end up with a system that’s too large or too small.

Can I expand later?

Yes, the BOLT-241 is modular. You can easily add additional units as your energy needs grow.

How quickly can the BOLT-241 be installed?

After analysis and coordination, installation can usually be completed quickly, as no major modifications are required.

Do I need technical knowledge to use the system?

No, the system is controlled automatically. While the software provides real-time visibility, you don't need to adjust anything manually.

Does this solution fall under the Flex-e scheme?

Ja zeker! De De BOLT-241 valt onder de <100 kWh categorie waardoor je in aanmerking komt voor de Flex-e subsidie.

TURN NEGATIVE ELECTRICITY PRICES INTO AN OPPORTUNITY

The number of hours with negative electricity prices continues to rise. More and more often, feeding electricity back into the grid yields less revenue—or even costs money. This is especially true during peak production times for your solar panels.

With the BOLT-241, you can prevent that loss. You temporarily store energy and use or sell it when it’s profitable to do so. This way, you get more out of your generation and prevent price fluctuations from working against you. What was once a cost center becomes… much easier to manage.

Start subsidy check

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