
Modular batteries for small businesses
Keep the lights on.
ONÉA stores energy on your wall and steps in when the grid drops, so the lights, the till and the fridge can carry on.
See BLOCK
Why ONÉA
Your day doesn’t have to stop when the grid does.
A power cut doesn’t wait for a quiet moment. It takes the lights, the card machine and the cold chain at once, and the day stalls.
ONÉA is a quiet system on the wall: modular batteries and one hybrid inverter, designed to keep the essentials of a small business running through the gaps.

BLOCK
Start with one. Stack to four.
Each BLOCK is a 5 kWh module. Begin with one on the wall and add more as the business grows — they all share one CORE.
10kWh
Nominal capacity
Room for refrigeration alongside the essentials.
The everyday interruptions
Three ways the grid gets in the way.
- 01
Unreliable electricity
Dips and short drops, several times a day. Each one restarts the router, the till and everyone’s patience.
- 02
Power outages
Hours without the grid, often at the worst moment — at dusk, with customers inside and stock in the fridge.
- 03
Expensive power
A generator that runs on fuel and noise, and tariffs that keep rising. Stored energy — and the sun — change the arithmetic.
Lights Out
Pick your business. Then cut the power.
An interactive street. Choose a bakery, a pharmacy, a salon or a clinic, switch the grid off, and see what keeps running.
Open Lights OutGrid on
Packages
A system that grows with your needs.
Three example configurations. Each starts with the same CORE; what changes is how much you store.

For a bakery, a salon or a pharmacy with refrigeration.
In the configuration
- 2 × BLOCK · 10 kWh nominal
- CORE hybrid inverter
- Companion app

A scenario
Tuesday, 18:42.
An evening at a neighbourhood bakery. The street goes dark; the display fridge doesn’t.
The grid drops. The street light goes out, then the shop next door.
CORE moves the bakery onto BLOCK. The lights dip for a moment and stay on.
The last loaves sell under the counter lights. The card machine still connects.
The grid returns. BLOCK recharges before the morning bake.
Installers
Built to be installed well.
For electricians and solar installers: one CORE, clear documentation, and modules that hang and lock on a single rail.
Installer overview- 01Mount
- 02Connect
- 03Commission




