A battery container is the solution for large-scale energy storage, but what does such a system really cost? Besides purchasing the battery container itself, you also need to account for transport, installation, connection, and any additional provisions. The costs can therefore vary greatly per project. In this blog, we provide insight into the price structure, the additional costs you can expect, and we show a number of practical examples. This way, you know exactly what to expect before you invest.

What does the price structure of a battery container consist of?

The total price of a battery container is composed of different components:

• Basic container costs: Depending on storage capacity (e.g., 100 kWh, 500 kWh, 1 MWh) and brand.

• Transport costs: Depending on distance, weight, and accessibility of the location.

• Installation costs: Including placement, foundation, and technical connection.

• Configuration and commissioning: Software settings, charging schedules, and connection to the grid or solar panels.

• Maintenance contract (optional): For service, monitoring, and quick repairs.

For smaller systems, costs often start around €40,000 to €60,000 excluding VAT. Larger industrial installations can rise to several hundred thousand euros, depending on the specifications.

What additional costs should you consider?

In addition to purchase and installation, there are additional costs you should take into account beforehand:

• Foundation: Concrete slab or stelconplates cost an additional €2,000 to €5,000 on average.

• Connection to medium voltage: For large installations, a connection to an MV network may be required, with extra costs for transformers.

• Permits: For permanent placement, a building or environmental permit may be necessary.

• Security: Consider camera surveillance or fencing around the battery container.

• Monitoring software: For real-time insight into storage and consumption, sometimes with annual license costs.

By mapping out these additional costs in advance, you won't face surprises during implementation.

What are examples of total project costs?

To give you a better picture, some practical examples:

• Small project location (100 kWh):
  Base price container: €45,000
  Transport + placement: €4,000
  Foundation + connection: €3,000
  Total estimate: approx. €52,000 excl. VAT

• Medium-sized construction site (500 kWh):
  Base price container: €120,000
  Transport + placement: €6,000
  Foundation + MV connection: €12,000
  Total estimate: approx. €138,000 excl. VAT

• Large industrial site (1 MWh):
  Base price container: €230,000
  Transport + placement: €10,000
  Foundation, medium voltage, cooling: €25,000
  Total estimate: approx. €265,000 excl. VAT

Note: exact prices can vary due to inflation, customization options, and location requirements.

Why investing in a battery container pays off

Although the investment in a battery container seems substantial, it offers many benefits in the long term:

• Lower energy costs: Through peak shaving and own power storage.

• Independence: Less dependent on fluctuating grid prices.

• Sustainability: Optimization of own sustainable generation.

• Network congestion solution: Important in overburdened grids.

Moreover, in some situations, subsidy schemes or tax advantages may be possible, such as the EIA (Energy Investment Allowance).

Frequently asked questions about the costs of battery containers

What does a small battery container cost?
Estimate around €40,000 to €60,000 excluding transport and installation.

Are transport costs always included?
No, they are often calculated separately based on distance and accessibility.

How much does the grid connection cost?
Low voltage connection is manageable, but medium voltage can cost an additional €10,000 to €20,000.

Can I get a subsidy for a battery container?
In some cases, yes, for example through the Energy Investment Allowance (EIA).

Are maintenance costs mandatory?
No, but a maintenance contract is strongly recommended for long-term reliability.

Is a permit required for placement?
Often not for temporary use, but usually for permanent placement.

How long does it take to place a battery container?
With good preparation, placement and commissioning can be done within 1 to 3 days.

What influences the price the most?
Capacity (kWh), type of inverters, location, and additional requirements such as cooling or fire protection.