Frequently asked questions about home batteries

Short answers to the questions we hear most about home batteries: choosing, costs and VAT, net metering, connecting, registering and safety. Each answer links to an article with the explanation and official sources. Is your question missing? Get in touch.

Last updated: 18 October 2026

Choosing and buying

What does a home battery do?

It stores electricity, for example the surplus from your solar panels during the day, so you can use it yourself later.

Which capacity suits me?

That mainly depends on how much you use in the evening and at night. Do not pick one that is too large.

Plug-and-play or a system with installation?

A plug-and-play battery connects to a wall socket. A system with installation goes on its own circuit.

LFP or NMC: what is inside?

These are two types of lithium-ion cells. Most home batteries use LFP.

Costs, VAT and subsidies

Roughly how much will I spend?

According to Milieu Centraal, an average 6 kWh home battery costs a few thousand euros, including inverter and installation. Our current prices are in the shop.

Source: Milieu Centraal

Is there a subsidy for a home battery?

There is no national subsidy for home batteries. Some provinces have their own scheme, such as Flevoland. Applications for 2026 are closed there and reopen in early 2027. Also check with your own municipality or province.

How much VAT do I pay on a home battery?

21%. The 0% rate applies to solar panels, not to a battery pack or home battery. Reclaiming VAT is only possible under strict conditions.

Will I earn the cost back?

Probably not in the short term. Milieu Centraal expects that you will most likely not earn a home battery back at the moment.

Net metering and contracts

When does net metering (salderen) end?

On 1 January 2027. After that you receive a fee for electricity you feed back. Until 2030 it is at least 50% of the bare supply tariff.

What are feed-in costs?

Costs your supplier charges for processing electricity you feed back. They may only be the costs the supplier incurs for this, and the ACM supervises them.

Does a home battery work with a dynamic contract?

It can, if the battery can charge and discharge based on the price. A benefit is not automatic.

Fixed or dynamic contract with a home battery?

It depends on how your battery is controlled. In CE Delft research, total energy costs without net metering were lower with a dynamic contract, or about the same as with a fixed one.

Source: CE Delft: proefopstellingen thuisbatterijen

Can it work without solar panels?

Not every battery, but some (larger) home batteries can also be used without solar panels, for example with a dynamic contract.

Source: Milieu Centraal

Can my electric car act as a home battery?

Not really yet. According to Milieu Centraal, an electric car is not yet a home battery on wheels: you can only use its electricity for the car itself, not for appliances in your home.

Source: Milieu Centraal

Connecting, registering and safety

How do I connect a plug-and-play battery safely?

Directly to an earthed wall socket, without an extension cord or power strip, and preferably on a separate circuit.

Source: Brandweer

Do I need to register the battery?

Yes, if its power is 0.8 kW or more. You register a home battery yourself via energieleveren.nl.

Where do I put a home battery?

In a dry, well-ventilated room, not in an escape route or under the stairs. Fit a working smoke detector in the same room.

Does Voltravo also install it?

For selected plug-and-play models you can add single-phase installation on its own circuit for €499 per battery, including VAT.

After your order

Where can I find warranty and shipping costs?

Warranty terms are on the product page, shipping costs are shown in your cart. Questions after your order? See service or get in touch.

Is your question missing?

Just ask it in your own words. We think along with you, no pressure.

Get in touch

Choosing and buying

What does a home battery do?

It stores electricity, for example the surplus from your solar panels during the day, so you can use it yourself later.

Which capacity suits me?

That mainly depends on how much you use in the evening and at night. Do not pick one that is too large.

Plug-and-play or a system with installation?

A plug-and-play battery connects to a wall socket. A system with installation goes on its own circuit.

LFP or NMC: what is inside?

These are two types of lithium-ion cells. Most home batteries use LFP.

Roughly how much will I spend?

According to Milieu Centraal, an average 6 kWh home battery costs a few thousand euros, including inverter and installation. Our current prices are in the shop.

Source: Milieu Centraal

Is there a subsidy for a home battery?

How much VAT do I pay on a home battery?

21%. The 0% rate applies to solar panels, not to a battery pack or home battery. Reclaiming VAT is only possible under strict conditions.

Will I earn the cost back?

Probably not in the short term. Milieu Centraal expects that you will most likely not earn a home battery back at the moment.

When does net metering (salderen) end?

On 1 January 2027. After that you receive a fee for electricity you feed back. Until 2030 it is at least 50% of the bare supply tariff.

What are feed-in costs?

Costs your supplier charges for processing electricity you feed back. They may only be the costs the supplier incurs for this, and the ACM supervises them.

Does a home battery work with a dynamic contract?

It can, if the battery can charge and discharge based on the price. A benefit is not automatic.

Fixed or dynamic contract with a home battery?

It depends on how your battery is controlled. In CE Delft research, total energy costs without net metering were lower with a dynamic contract, or about the same as with a fixed one.

Source: CE Delft: proefopstellingen thuisbatterijen

Can it work without solar panels?

Not every battery, but some (larger) home batteries can also be used without solar panels, for example with a dynamic contract.

Source: Milieu Centraal

Can my electric car act as a home battery?

Not really yet. According to Milieu Centraal, an electric car is not yet a home battery on wheels: you can only use its electricity for the car itself, not for appliances in your home.

Source: Milieu Centraal

Connecting, registering and safety

How do I connect a plug-and-play battery safely?

Directly to an earthed wall socket, without an extension cord or power strip, and preferably on a separate circuit.

Source: Brandweer

Do I need to register the battery?

Yes, if its power is 0.8 kW or more. You register a home battery yourself via energieleveren.nl.

Where do I put a home battery?

In a dry, well-ventilated room, not in an escape route or under the stairs. Fit a working smoke detector in the same room.

Does Voltravo also install it?

For selected plug-and-play models you can add single-phase installation on its own circuit for €499 per battery, including VAT.

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Frequently asked questions about home batteries

Choosing and buying

What does a home battery do?

Which capacity suits me?

Plug-and-play or a system with installation?

LFP or NMC: what is inside?

Costs, VAT and subsidies

Roughly how much will I spend?

Is there a subsidy for a home battery?

How much VAT do I pay on a home battery?

Will I earn the cost back?

Net metering and contracts

When does net metering (salderen) end?

What are feed-in costs?

Does a home battery work with a dynamic contract?

Fixed or dynamic contract with a home battery?

Can it work without solar panels?

Can my electric car act as a home battery?

Connecting, registering and safety

How do I connect a plug-and-play battery safely?

Do I need to register the battery?

Where do I put a home battery?

Does Voltravo also install it?

After your order

Where can I find warranty and shipping costs?

Is your question missing?

Frequently asked questions about home batteries

Choosing and buying

What does a home battery do?

Which capacity suits me?

Plug-and-play or a system with installation?

LFP or NMC: what is inside?

Costs, VAT and subsidies

Roughly how much will I spend?

Is there a subsidy for a home battery?

How much VAT do I pay on a home battery?

Will I earn the cost back?

Net metering and contracts

When does net metering (salderen) end?

What are feed-in costs?

Does a home battery work with a dynamic contract?

Fixed or dynamic contract with a home battery?

Can it work without solar panels?

Can my electric car act as a home battery?

Connecting, registering and safety

How do I connect a plug-and-play battery safely?

Do I need to register the battery?

Where do I put a home battery?

Does Voltravo also install it?

After your order

Where can I find warranty and shipping costs?

Is your question missing?