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Solar panels
Home battery
EV charger
Hybrid heat pump
Radiators and floor
Gas boiler
Heat pump water heater
Air conditioning
Insulation
Smart control
Energy contractHome battery Your solar power, after dark.
The battery stores what your panels make during the day. Smart‑E‑Grid makes it work with your whole home, whatever the brand.
The home scan is free. See what fits right away.
From € 4,360 including installation10-year warrantyOnly if it pays: paid back within 10 yearsYour quote within 24 hours
More of your own power.
On 1 January 2027, net metering (salderen) ends. What you feed back will then bring in little. What you use yourself, you don't have to buy.
- Without a battery25%
- With a battery and Smart‑E‑Grid75%+
Our guide figure for a home with solar panels: the share of your own solar power that you use yourself. Milieu Centraal assumes around 30% without a battery, we work with a more careful 25%. With an EV charger or heat pump added, it is higher.
Three batteries to choose from.
All three have a 10-year warranty, and all three work with Smart‑E‑Grid. They differ in size, location and how far you can expand.
Good price, indoors or out.
FoxESS CQ7- Per module
- 7.02 kWh
- Expandable
- Up to 98 kWh
- Placement
- Indoors and outdoors
- Warranty
- 10 years
Exactly the right size.
AlphaESS SMILE G3- Per module
- 3.8 or 9.3 kWh
- Expandable
- Up to 111 kWh
- Placement
- Indoors and outdoors
- Performance warranty
- 10 years
Top model, up to 10,000 cycles.
sonnenBatterie 10- Usable
- 5, 10 or 20 kWh
- Expandable
- Up to 198 kWh
- Placement
- Indoors
- Warranty, up to 10,000 cycles
- 10 years
Which one fits depends on your usage, your panels and your meter cupboard. We choose based on your home, not on what we have in stock.
Works with the rest of your home.
The Smart‑E‑Grid box in your meter cupboard, the MoMa, reads everything that uses power. So the battery does not work on its own, but with your whole home.
A battery only if it pays.
The home scan only suggests a battery if it brings in enough. If it doesn't, we tell you.
From
€ 4,360
A 7 kWh home battery with inverter. Including installation and VAT.
See the price for your homeExample per month
€ 34.08
15 years, 4.93% APR, total € 6,134.40
With the Energiebespaarlening (energy saving loan) of the Nationaal Warmtefonds.
Let op! Geld lenen kost geld. (Borrowing money costs money.)
Example
- Loan
- € 4,360
- Term
- 15 years, 180 months
- Fixed borrowing rate
- 4.82%
- Annual percentage rate (APR)
- 4.93%
- Per month
- € 34.08
- Total to repay
- € 6,134.40
If your household income is below € 60,000, it can be at 0% interest. Warmtefonds rate on 12 October 2026.
- € 200The least it must save you each year.
- 10 yearsIt must pay for itself within that time.
VAT refund and subsidy are covered in the questions below.
From advice to the first month.
At every step you know what happens and who to call.
Home scan
Describe your home in a few minutes and see right away what fits.
Consultation
The adviser looks at your meter cupboard, your roof and your usage.
Quote
Within 24 hours. A battery that suits your usage, not the biggest one.
Installation
Our own team fits the battery and the MoMa and arranges your contract.
The first month
Smart‑E‑Grid learns your home. After that it controls things by itself.
Is a home battery worth it for me?
We work that out first. While you still have net metering, a battery brings in little. From 1 January 2027, every kWh you use yourself counts. The home scan only suggests a battery if it saves at least € 200 a year and pays for itself within 10 years.
Can I get the VAT back?
You can, if your battery trades on a dynamic contract, the invoice is in your own name and you are not in the small business scheme (KOR). After that you pay VAT for five years on the part you use yourself. We handle the application through De Centrale.
Is there a subsidy for a home battery?
No. There is no ISDE (the Dutch subsidy for sustainable energy) and no other national subsidy for a home battery. You can sometimes reclaim the VAT, though.
Do I need solar panels?
With solar panels you get the most out of it, because the battery then stores your own power. If you don't have panels yet, we look in the consultation at whether panels and a battery fit together.
What does Smart‑E‑Grid do with my battery?
Every 15 minutes it decides what happens to your power: use it yourself, store it, or charge and feed back to the grid at the best price. Your own power first, the grid only when it pays. It learns your home in about a month.
Am I tied in?
Your battery is yours. Smart‑E‑Grid has no monthly costs at home. The contract runs for a year and you can cancel early with one month's notice.
Is a home battery safe?
All three are LiFePO₄: lithium iron phosphate, without cobalt. Our installers fit the battery to NEN 1010 and check beforehand whether your meter cupboard can handle it.
How big should my battery be?
As big as suits your usage, not the biggest. The adviser works it out from your figures. All three can be expanded later.