What does a home battery cost?

A home battery costs between 3,500 and 10,500 euros including installation and VAT, depending on the storage capacity and on what's already in your meter cupboard. A plug-in home battery that you plug into the socket yourself is available from roughly 1,200 euros.

In this article you'll read what those amounts consist of, what you pay per kWh and which schemes bring the price down.

What does a home battery cost per storage capacity?

The cost of a home battery per storage capacity ranges from around 3,500 euros for 5 kWh to over 10,000 euros for 20 kWh, including installation and VAT. Which class suits you depends on your consumption and your solar panels; the range of home batteries shows per model how many kWh you get for which amount.

In 2026, energy suppliers and installers use roughly these classes: 5 kWh between 3,500 and 6,000 euros, 10 kWh between 4,500 and 7,500 euros, 15 kWh between 6,000 and 9,000 euros, and 20 kWh between 7,500 and 10,500 euros.

A 5 kWh home battery is usually enough for a household of 1 or 2 people with 4 to 6 panels. With 8 to 10 panels and a family of 3 people you'll end up at 10 kWh, and with a heat pump or electric cooking at 15 kWh or more.

What does the cost of a home battery consist of?

The cost of a home battery consists of four items: the battery module, the hybrid inverter, the installation work and VAT. On a quote you often see them as one total amount, while they vary considerably per situation and not every provider includes them all. So check per item what you actually pay.

The battery module of a home battery

The battery module of a home battery is the biggest cost item and determines the largest part of the total amount. The price scales almost linearly with the number of kWh: a 10 kWh module costs roughly double that of 5 kWh. Modular systems let you start small and add a module later, so you don't pay for the maximum capacity all at once.

The hybrid inverter for a home battery

A hybrid inverter for a home battery costs around 1,000 to 2,000 euros and is only needed if your current inverter converts solar power exclusively. If you already have a hybrid inverter with your solar panels, you usually connect the battery directly to it and this cost disappears. With a plug-in home battery, the inverter is built into the housing and you don't pay for it separately.

Installing a home battery

With most installers, the installation of a home battery is included in the all-in price, but always ask whether mounting, cabling and inspection are included. If the meter cupboard needs to be expanded or the cabling adjusted, the amount goes up. If you combine the battery with new solar panels, everything is done in one go and the installation costs usually stay lower than with a separate installation afterwards.

The VAT you pay on a home battery

On a home battery you pay 21 percent VAT, including on the inverter and the installation work. The zero rate of 0 percent applies only to the solar panels themselves, not to the battery, even if you have both installed at the same time. So always compare quotes based on amounts including VAT; providers regularly show prices excluding VAT or "after VAT refund", and that refund is far from achievable for everyone.

Which factors make a home battery more expensive?

A home battery gets more expensive because of the battery's own features: the storage capacity, the charge and discharge power, the connection, the warranty period, a backup power function and the expandability. As a result, a good home battery sits at the top of the price range as soon as you want these factors at the highest level:

• Storage capacity: every extra kWh raises the price, but lowers the price per kWh because the inverter and installation stay the same.
• Charge and discharge power: a battery that can deliver 3 kW or more powers heavy appliances at the same time and costs more than a model that delivers less power through the wall socket.
• Connection: a three-phase battery distributes the power across all phases of your connection and is more expensive than a single-phase model.
• Warranty period: at least 10 years of product warranty on lithium iron phosphate cells (LiFePO4) costs more than a shorter warranty on classic lithium-ion cells, but those cells last longer and are more thermally stable.
• Backup power function: a battery that keeps powering your home or a backup power outlet during an outage requires extra switching technology and a higher price.
• Expandability: a modular system that can grow later alongside a heat pump or electric car costs a bit more up front, but saves you a second full investment.

Only pay for the factors your situation calls for. A household without a heat pump and with a single-phase connection has little use for a high-power three-phase battery, while 10 years of warranty and LiFePO4 are worth the extra cost for almost everyone.

How much does a home battery cost per kWh of storage capacity?

A home battery costs about 650 to 1,300 euros per kWh of storage capacity in 2026, including installation. The bigger the battery, the lower the price per kWh: the inverter and the installation work cost roughly the same at 15 kWh as at 5 kWh, but are spread across three times as much capacity.

That's why it's better to compare offers by price per kWh than by the total amount. Divide the complete price including inverter, installation and VAT by the usable capacity, not by the nominal capacity on the box. With the home battery deals you can see right away how much a promotion saves per kWh compared to the regular price.

What does a plug-in home battery without an installer cost?

A plug-in home battery without an installer costs roughly between 1,200 and 2,500 euros in 2026 for 1.6 to 7 kWh, and that's the total price right away. You plug the battery into a grounded wall socket, connect the included P1 meter (the cable that reads your consumption from the smart meter) to your meter cupboard, and the app handles the charging and discharging. The inverter, installer and meter cupboard work are eliminated, bringing the price per kWh to roughly between 350 and 950 euros.

Brands like Anker SOLIX and Zendure supply these batteries in a modular way: you start with one module and add another later. The limitation is in the power. Through the wall socket, a plug-in battery delivers less power than a fixed system, so you won't fully cover heavy consumers like a heat pump with it. For those who know this, a plug-in home battery is an affordable entry into energy storage.

Which schemes lower the cost of a home battery?

The schemes that lower the cost of a home battery are limited in 2026: there's no national purchase subsidy, the home battery doesn't fall under the ISDE, and the 0% VAT rate for solar panels doesn't apply to the battery. What is possible depends on your municipality, your tax situation and the type of battery. These are the options:

• VAT refund: only possible if you can demonstrably prove that you use the battery for buying and selling electricity through your energy supplier. You then register as a VAT-registered business, don't fall under the small businesses scheme (KOR) and afterwards pay VAT annually on private use.
• Provincial subsidy: Flevoland reimburses 25 percent up to a maximum of 1,250 euros for batteries of 5 to 20 kWh at a home with solar panels; the budget for 2026 is used up, and a new round comes in 2027.
• Municipal subsidy: a few municipalities have their own scheme, such as Noordwijk (25 percent up to 1,000 euros, also for plug-in batteries), Purmerend (40 euros per kWh up to 450 euros) and Schouwen-Duiveland (750 euros fixed).
• Energy savings loan: through the Nationaal Warmtefonds you can borrow up to 8,500 euros for a home battery at a low interest rate, provided you have solar panels or have them installed at the same time and an installer connects the battery; a plug-in battery that you plug in yourself does not qualify for this loan.

So calculate with the price including VAT and without subsidy, and treat a refund or a local scheme as a bonus. Which schemes apply in your province or municipality can be found in the overview of home battery subsidies. Providers that show prices "after VAT refund" are showing you a benefit you may not be entitled to.

Is a home battery worth the investment in 2026?

A home battery is worth the investment in 2026 if you feed back a lot of solar power, have a dynamic energy contract or value backup power; purely for savings on a fixed contract, you'll earn it back slowly. Installers reckon with 6 to 12 years, while Milieu Centraal and CE Delft arrive at around 15 years for self-consumption only, close to the 10 to 20 year lifespan.

The math shifts from January 1, 2027. That's when the netting scheme ends, and every kWh you feed back earns you less than a kWh you store and use yourself. The lower your purchase price per kWh, the faster that math turns positive.

Where can you buy a home battery at a sharp price?

Buy a home battery at a sharp price from TechPunt: plug-in home batteries from Anker SOLIX and Zendure, shipped from our own warehouse in Barneveld. Order before 8:00 PM on a working day and it's at your door the next working day.

Thanks to the lowest-price guarantee, you won't pay more than at any other Dutch or Belgian webshop with the same delivery time and warranty period. You get a 2-year warranty and a 14-day return right, as long as the battery comes back in as-new condition and in its original packaging. Compare the models on price per kWh and choose what suits your solar panels and energy use.