Greater self-sufficiency
Use more of the electricity you produce yourself and buy less from the grid.
Battery systems
Use your own solar power even when the sun isn't shining
A battery system stores the electricity your solar panels produce for later use and helps increase your energy independence.
An extension of solar
A battery is the natural upgrade to a solar system
A battery system stores the surplus electricity your solar panels produce during the day so you can use it in the evening and at night. This way a larger share of the electricity you produce ends up in your own use.
A battery isn't a separate product but an upgrade to your solar panels: it increases how much of your own production you use and your energy independence. We recommend starting with solar panels and adding a battery when it suits your needs.
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Explore solar panelsBenefits
What a battery adds to a solar system
More of your own electricity, better control and preparedness.
Preparedness for price swings
A battery helps you use your own production and can support smart consumption control.
Preparedness for outages
With compatible systems, a battery can support backup power for selected loads.
EV charging
Your own solar power can be partly directed to charging an electric car.
⚠ Note: not every battery system automatically provides backup power during an outage. Backup operation depends on the system configuration.
Use cases
Who a battery suits
A battery brings the most benefit when your own production and consumption can be timed.
Detached houses
Properties with a daytime solar surplus.
Farms
High-consumption properties where self-sufficiency matters.
Cottages
Properties where independence from the grid is important.
EV charging
Directing your own production to car charging.
Price-aware customers
Customers who want to prepare for electricity price swings.
Calculators
Estimate the battery's payback and benefit
A battery's value is highly property-specific. The calculator gives an indicative estimate of increased self-consumption and benefit.
Battery payback depends on the consumption profile, electricity price and system size. The result is an indicative estimate.
FAQ
Battery systems — frequently asked questions
Is a battery always worth it with solar panels?
Not always. A battery increases the use of your own electricity, but its value depends on your consumption profile and goals. In the assessment we determine whether a battery is worthwhile for your property.
How large a battery is needed?
Battery size is based on consumption, the size of the solar system and your goals. An oversized battery doesn't necessarily improve the economics.
Can a battery be installed later?
Yes. You can start with solar panels and add a battery later. A future battery can be accounted for in the design.
Does a battery work during a power outage?
Not automatically in every system. Backup power during an outage requires a compatible system and the right configuration. We'll determine the possibility in the assessment.
How does a battery affect the payback time?
A battery increases the investment but adds to the use of your own production. Payback depends on consumption and the electricity price, and is estimated per property.
Free assessment
Request a free solar energy assessment
We'll assess whether solar panels are worthwhile for your property.
A free assessment doesn't commit you to a purchase.