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A family in their living room with the CROSTORION home battery standing against the wall behind them
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Home battery

Lower bills.
Lights always on.

A home battery that quietly saves you money every day — and keeps your home running when the grid fails. Installed, monitored and cared for by our local team.

10-year warranty Installed by our team Stock in the EU
What you get

Three things change the day it's installed

You pay less for the same life

The battery fills up when energy is cheap — from your roof or from the grid at night — and powers your home through the expensive evening hours.

The lights stay on

When the grid goes down, your battery takes over automatically. Most families only find out there was an outage when the neighbours mention it.

Nothing to think about

We monitor the system remotely, service it when needed and stand behind it with a 10-year warranty. Your only job is living in your house.

Why it costs less than you'd think

Your battery earns its keep

When your home doesn't need it, your battery can work for the grid — helping keep it stable, and earning while it waits.

Where the rules and your supplier allow it, that market work is an extra return on a battery you already own — arranged through our licence, on top of what you save at home.

At home, it's simple: a smaller bill, month after month — money that goes back to weekends, day trips and ice cream instead of the meter. The app shows what you saved, and when your battery was earning.

How the market side works
Forest seen from the air, with a lake in the shape of the CROSTORION mark
Houses on a shoreline during a night storm, one of them still lit
A day with the battery

You won't notice it. That's the point.

Sunshine goes in the bank

Through the day, your roof surplus — or the cheapest grid hours — quietly fill the battery.

Dinner runs on your own power

In the evening, when electricity is at its most expensive, your home runs on what you stored.

Grid down? You won't notice.

The switchover is automatic. The fridge hums, the Wi-Fi stays up, the evening carries on.

How you get it

Three steps. Your part takes minutes.

Send us your bill and a few photos

Your annual consumption and where the battery could live — a wall, a garage, a corner outside.

We size it and send a proposal

How many modules, where they go, and the ownership model that fits — within two business days.

We install. You relax.

Our team fits the system, connects the app, and stays on call after — service is our job, not yours.

Start with step one

You own it, and we look after it

A home system is bought, not leased: the battery is yours from day one, and it comes with a 10-year warranty and our service — remote monitoring, maintenance and a named local team. Our Storage-as-a-Service model, where we keep ownership and share the benefit, is built for metered commercial and industrial sites and is not offered for households.

The connection side of three stacked CROSTORION modules, with breakers and terminals
The hardware

When you want the numbers

Two stackable modules, one system — it grows with your household, up to sixteen modules in parallel.

LV stackable

CRO5000U

5.12 kWh
Per module (100 Ah)
10 yr
Warranty
ChemistryLiFePO₄
Nominal voltage51.2 V
ScalingUp to 16 units in parallel — ~82 kWh
InstallationIP50 indoor · IP65 outdoor version
LV stackable

CRO10000U

10.24 kWh
Per module (200 Ah)
10 yr
Warranty
ChemistryLiFePO₄
Nominal voltage51.2 V
ScalingUp to 16 units in parallel — ~164 kWh
InstallationIP50 indoor · IP65 outdoor version

Need more than a home system?

An HV stackable line covers ~10–30 kWh systems for larger homes and small C&I — details on request. For anything above that, see the ESS 261 cabinet.

Certified to IEC 62619, UN38.3 and CE-EMC · works with GoodWe, Solis, Deye, Victron, Growatt and SMA hybrid inverters · full datasheet on request.

Four CROSTORION modules stacked against a wall beside a terrace door
Living with it

Tidy in the corner. Silent in the background.

The modules stack into one clean white tower in the garage, hallway or utility room — no exposed wiring, no machine-room look.

And you won't hear it working: the battery has no moving parts, so it charges, discharges and carries your home through an outage without a sound you'd notice. Most days, the only sign it exists is the app.

Good questions

Things people ask us

Do I need solar panels?

No. The battery also saves money by charging in the cheapest hours and covering the expensive ones. With a solar roof, it saves more.

What happens when the power goes out?

The battery takes over automatically — essential circuits keep running, and you'll usually only know from the app.

Where does it live?

Indoors in a hallway, garage or utility room — or outside under a roof with the outdoor version. It stacks, has no exposed wires, and is safe around children and pets.

Who takes care of it?

We do. The system is monitored remotely, serviced by our team, and covered by a 10-year warranty.

How long does installation take?

Usually a single visit — we confirm the exact plan in your proposal, and your power stays on while we work.

What does it cost?

That depends on how much you use and how many modules that works out to. Send us a year of bills and we'll reply with a concrete proposal — system size, price and expected saving — within two business days.

Brochure

The home battery, on paper

What it looks like, what it fits, what it costs you in space — the whole brochure as a PDF.

Get started

Start your own project

Tell us about your project and we'll size a system and reply within two business days.